Tue Aug 5 14:35:44 BST 2008 Simon Marlow * Add -XPackageImports, new syntax for package-qualified imports Now you can say import "network" Network.Socket and get Network.Socket from package "network", even if there are multiple Network.Socket modules in scope from different packages and/or the current package. This is not really intended for general use, it's mainly so that we can build backwards-compatible versions of packages, where we need to be able to do module GHC.Base (module New.GHC.Base) where import "base" GHC.Base as New.GHC.Base Tue Aug 5 14:37:02 BST 2008 Simon Marlow * Don't warn if 'import Prelude' doesn't import anything ... even if Prelude doesn't come from the base package (it might come from a old backwards-compatible version of base, for example). Tue Aug 5 16:33:26 BST 2008 Simon Marlow * build base3-compat New patches: [Add -XPackageImports, new syntax for package-qualified imports Simon Marlow **20080805133544 Now you can say import "network" Network.Socket and get Network.Socket from package "network", even if there are multiple Network.Socket modules in scope from different packages and/or the current package. This is not really intended for general use, it's mainly so that we can build backwards-compatible versions of packages, where we need to be able to do module GHC.Base (module New.GHC.Base) where import "base" GHC.Base as New.GHC.Base ] { hunk ./compiler/hsSyn/HsImpExp.lhs 38 + (Maybe FastString) -- package qualifier hunk ./compiler/hsSyn/HsImpExp.lhs 47 - ppr (ImportDecl mod from qual as spec) + ppr (ImportDecl mod pkg from qual as spec) hunk ./compiler/hsSyn/HsImpExp.lhs 49 - pp_qual qual, ppr mod, pp_as as]) + pp_qual qual, pp_pkg pkg, ppr mod, pp_as as]) hunk ./compiler/hsSyn/HsImpExp.lhs 52 + pp_pkg Nothing = empty + pp_pkg (Just p) = doubleQuotes (ftext p) + hunk ./compiler/hsSyn/HsImpExp.lhs 71 -ideclName (ImportDecl mod_nm _ _ _ _) = mod_nm +ideclName (ImportDecl mod_nm _ _ _ _ _) = mod_nm hunk ./compiler/iface/LoadIface.lhs 73 -loadSrcInterface :: SDoc -> ModuleName -> IsBootInterface -> RnM ModIface -loadSrcInterface doc mod want_boot = do +loadSrcInterface :: SDoc + -> ModuleName + -> IsBootInterface -- {-# SOURCE #-} ? + -> Maybe FastString -- "package", if any + -> RnM ModIface + +loadSrcInterface doc mod want_boot maybe_pkg = do hunk ./compiler/iface/LoadIface.lhs 86 - res <- liftIO $ findImportedModule hsc_env mod Nothing + res <- liftIO $ findImportedModule hsc_env mod maybe_pkg hunk ./compiler/main/DynFlags.hs 232 + | Opt_PackageImports hunk ./compiler/main/DynFlags.hs 1606 - ( "IncoherentInstances", Opt_IncoherentInstances, const Supported ) + ( "IncoherentInstances", Opt_IncoherentInstances, const Supported ), + ( "PackageImports", Opt_PackageImports, const Supported ) hunk ./compiler/main/Finder.lhs 40 +import Distribution.Package hunk ./compiler/main/Finder.lhs 117 -findImportedModule :: HscEnv -> ModuleName -> Maybe PackageId -> IO FindResult -findImportedModule hsc_env mod_name mb_pkgid = - case mb_pkgid of - Nothing -> unqual_import - Just pkg | pkg == this_pkg -> home_import - | otherwise -> pkg_import pkg +findImportedModule :: HscEnv -> ModuleName -> Maybe FastString -> IO FindResult +findImportedModule hsc_env mod_name mb_pkg = + case mb_pkg of + Nothing -> unqual_import + Just pkg | pkg == fsLit "this" -> home_import -- "this" is special + | otherwise -> pkg_import hunk ./compiler/main/Finder.lhs 124 - dflags = hsc_dflags hsc_env - this_pkg = thisPackage dflags + home_import = findHomeModule hsc_env mod_name hunk ./compiler/main/Finder.lhs 126 - home_import = findHomeModule hsc_env mod_name + pkg_import = findExposedPackageModule hsc_env mod_name mb_pkg hunk ./compiler/main/Finder.lhs 128 - pkg_import pkg = findPackageModule hsc_env (mkModule pkg mod_name) - -- ToDo: this isn't quite right, the module we want - -- might actually be in another package, but re-exposed - -- ToDo: should return NotFoundInPackage if - -- the module isn't exposed by the package. - - unqual_import = home_import + unqual_import = home_import hunk ./compiler/main/Finder.lhs 130 - findExposedPackageModule hsc_env mod_name + findExposedPackageModule hsc_env mod_name Nothing hunk ./compiler/main/Finder.lhs 173 -findExposedPackageModule :: HscEnv -> ModuleName -> IO FindResult -findExposedPackageModule hsc_env mod_name +findExposedPackageModule :: HscEnv -> ModuleName -> Maybe FastString + -> IO FindResult +findExposedPackageModule hsc_env mod_name mb_pkg hunk ./compiler/main/Finder.lhs 193 - found_exposed = filter is_exposed found + + found_exposed = [ (pkg_conf,exposed_mod) + | x@(pkg_conf,exposed_mod) <- found, + is_exposed x, + pkg_conf `matches` mb_pkg ] + hunk ./compiler/main/Finder.lhs 201 + _pkg_conf `matches` Nothing = True + pkg_conf `matches` Just pkg = + case packageName pkg_conf of + PackageName n -> pkg == mkFastString n + hunk ./compiler/main/GHC.hs 2263 -findModule :: Session -> ModuleName -> Maybe PackageId -> IO Module +findModule :: Session -> ModuleName -> Maybe FastString -> IO Module hunk ./compiler/main/HeaderInfo.hs 64 - (src_idecls, ord_idecls) = partition isSourceIdecl (map unLoc imps) - source_imps = map getImpMod src_idecls + imps' = filter isHomeImp (map unLoc imps) + (src_idecls, ord_idecls) = partition isSourceIdecl imps' + source_imps = map getImpMod src_idecls hunk ./compiler/main/HeaderInfo.hs 76 +-- we aren't interested in package imports here, filter them out +isHomeImp :: ImportDecl name -> Bool +isHomeImp (ImportDecl _ (Just p) _ _ _ _) = p == fsLit "this" +isHomeImp (ImportDecl _ Nothing _ _ _ _) = True + hunk ./compiler/main/HeaderInfo.hs 82 -isSourceIdecl (ImportDecl _ s _ _ _) = s +isSourceIdecl (ImportDecl _ _ s _ _ _) = s hunk ./compiler/main/HeaderInfo.hs 85 -getImpMod (ImportDecl located_mod _ _ _ _) = located_mod +getImpMod (ImportDecl located_mod _ _ _ _ _) = located_mod hunk ./compiler/main/HscStats.lhs 122 - import_info (L _ (ImportDecl _ _ qual as spec)) + import_info (L _ (ImportDecl _ _ _ qual as spec)) hunk ./compiler/main/Packages.lhs 413 - case filter exposed all_ps of - [] -> case all_ps of - [] -> notfound - many -> pick (head (sortByVersion many)) - many -> pick (head (sortByVersion many)) + case all_ps of + [] -> notfound + many -> pick (head (sortByVersion many)) hunk ./compiler/main/Packages.lhs 442 - deleteOtherWiredInPackages pkgs = filterOut bad pkgs - where bad p = any (p `matches`) wired_in_pkgids - && package p `notElem` map fst wired_in_ids + -- this is old: we used to assume that if there were + -- multiple versions of wired-in packages installed that + -- they were mutually exclusive. Now we're assuming that + -- you have one "main" version of each wired-in package + -- (the latest version), and the others are backward-compat + -- wrappers that depend on this one. e.g. base-4.0 is the + -- latest, base-3.0 is a compat wrapper depending on base-4.0. + {- + deleteOtherWiredInPackages pkgs = filterOut bad pkgs + where bad p = any (p `matches`) wired_in_pkgids + && package p `notElem` map fst wired_in_ids + -} hunk ./compiler/main/Packages.lhs 464 - pkgs1 = deleteOtherWiredInPackages pkgs + -- pkgs1 = deleteOtherWiredInPackages pkgs hunk ./compiler/main/Packages.lhs 466 - pkgs2 = updateWiredInDependencies pkgs1 + pkgs2 = updateWiredInDependencies pkgs hunk ./compiler/parser/Parser.y.pp 498 - : 'import' maybe_src optqualified modid maybeas maybeimpspec - { L (comb4 $1 $4 $5 $6) (ImportDecl $4 $2 $3 (unLoc $5) (unLoc $6)) } + : 'import' maybe_src optqualified maybe_pkg modid maybeas maybeimpspec + { L (comb4 $1 $5 $6 $7) (ImportDecl $5 $4 $2 $3 (unLoc $6) (unLoc $7)) } hunk ./compiler/parser/Parser.y.pp 505 +maybe_pkg :: { Maybe FastString } + : STRING { Just (getSTRING $1) } + | {- empty -} { Nothing } + hunk ./compiler/rename/RnEnv.lhs 469 - = loadSrcInterface doc mod False `thenM` \ iface -> + = loadSrcInterface doc mod False Nothing `thenM` \ iface -> hunk ./compiler/rename/RnNames.lhs 66 - is_source_import (L _ (ImportDecl _ is_boot _ _ _)) = is_boot + is_source_import (L _ (ImportDecl _ _ is_boot _ _ _)) = is_boot hunk ./compiler/rename/RnNames.lhs 102 - = notNull [ () | L _ (ImportDecl mod _ _ _ _) <- import_decls, + = notNull [ () | L _ (ImportDecl mod Nothing _ _ _ _) <- import_decls, hunk ./compiler/rename/RnNames.lhs 109 + Nothing {- no specific package -} hunk ./compiler/rename/RnNames.lhs 122 -rnImportDecl this_mod (L loc (ImportDecl loc_imp_mod_name want_boot +rnImportDecl this_mod (L loc (ImportDecl loc_imp_mod_name mb_pkg want_boot hunk ./compiler/rename/RnNames.lhs 127 + when (isJust mb_pkg) $ do + pkg_imports <- doptM Opt_PackageImports + when (not pkg_imports) $ addErr packageImportErr + hunk ./compiler/rename/RnNames.lhs 137 - iface <- loadSrcInterface doc imp_mod_name want_boot + iface <- loadSrcInterface doc imp_mod_name want_boot mb_pkg hunk ./compiler/rename/RnNames.lhs 247 - let new_imp_decl = L loc (ImportDecl loc_imp_mod_name want_boot + let new_imp_decl = L loc (ImportDecl loc_imp_mod_name mb_pkg want_boot hunk ./compiler/rename/RnNames.lhs 1451 + +packageImportErr :: SDoc +packageImportErr + = ptext (sLit "Package-qualified imports are not enabled; use -XPackageImports") hunk ./docs/users_guide/flags.xml 955 + + + Enable package-qualified imports. + dynamic + + hunk ./docs/users_guide/glasgow_exts.xml 1571 + + Package-qualified imports + + With the flag, GHC allows + import declarations to be qualified by the package name that the + module is intended to be imported from. For example: + + +import "network" Network.Socket + + + would import the module Network.Socket from + the package network (any version). This may + be used to disambiguate an import when the same module is + available from multiple packages, or is present in both the + current package being built and an external package. + + Note: you probably don't need to use this feature, it was + added mainly so that we can build backwards-compatible versions of + packages when APIs change. It can lead to fragile dependencies in + the common case: modules occasionally move from one package to + another, rendering any package-qualified imports broken. + } [Don't warn if 'import Prelude' doesn't import anything Simon Marlow **20080805133702 ... even if Prelude doesn't come from the base package (it might come from a old backwards-compatible version of base, for example). ] hunk ./compiler/rename/RnNames.lhs 1201 - mod /= pRELUDE, + moduleName mod /= pRELUDE_NAME, + -- XXX not really correct, but we don't want + -- to generate warnings when compiling against + -- a compat version of base. [build base3-compat Simon Marlow **20080805153326] { hunk ./compiler/ghc.cabal 39 - Build-Depends: base >= 3 && < 4, + Build-Depends: base >= 3 && < 5, hunk ./compiler/ghci/InteractiveUI.hs 340 - prel_mod <- GHC.findModule session (GHC.mkModuleName "Prelude") - (Just basePackageId) + prel_mod <- GHC.findModule session (GHC.mkModuleName "Prelude") Nothing hunk ./libraries/Makefile 44 -SUBDIRS = ghc-prim $(INTEGER_LIBRARY) base array packedstring +SUBDIRS = ghc-prim $(INTEGER_LIBRARY) base base3-compat array packedstring hunk ./libraries/Makefile 286 -doc: $(foreach SUBDIR,$(SUBDIRS),doc.library.$(SUBDIR)) +# No docs for compat libraries for now. +DOC_SUBDIRS = $(filter-out %-compat, $(SUBDIRS)) + +doc: $(foreach SUBDIR,$(DOC_SUBDIRS),doc.library.$(SUBDIR)) hunk ./libraries/Makefile 297 -$(foreach SUBDIR,$(SUBDIRS),doc.library.$(SUBDIR)):\ +$(foreach SUBDIR,$(DOC_SUBDIRS),doc.library.$(SUBDIR)):\ hunk ./packages 7 +libraries/base3-compat packages/base3-compat hunk ./utils/ghc-pkg/ghc-pkg.cabal 23 - Build-Depends: base >= 3 && < 4, + Build-Depends: base >= 3 && < 5, } Context: [Fix Trac #2467: decent warnings for orphan instances simonpj@microsoft.com**20080804162129 This patch makes * Orphan instances and rules obey -Werror * They look nicer when printed ] [Fix the bug part of Trac #1930 simonpj@microsoft.com**20080804161039] [Fix Trac #2433 (deriving Typeable) simonpj@microsoft.com**20080804141503] [Fix Trac #2478 simonpj@microsoft.com**20080801122223 A minor glitch that shows up only when a data constructor has *both* a "stupid theta" in the data type decl, *and* an existential type variable. ] [Improve docs for GADTs simonpj@microsoft.com**20080729145313] [Document -dsuppress-uniques simonpj@microsoft.com**20080729145247] [haddock fixes Ian Lynagh **20080803180330] [Follow the move of assertError from Control.Exception to GHC.IOBase Ian Lynagh **20080803141146] [Document PackageConfig Max Bolingbroke **20080731012345] [Document CoreSubst Max Bolingbroke **20080731012338] [Document CoreFVs Max Bolingbroke **20080731012337] [Document CmmZipUtil Max Bolingbroke **20080731012335] [Document VarSet Max Bolingbroke **20080731012335] [Document VarEnv Max Bolingbroke **20080731012335] [Document Unique Max Bolingbroke **20080731012334] [Document LazyUniqFM Max Bolingbroke **20080731012354] [Document FastTypes Max Bolingbroke **20080731012353] [Add some type signatures to RnNames Max Bolingbroke **20080731012348] [Comment only in IfaceENv Max Bolingbroke **20080731012343] [Document ZipCfg Max Bolingbroke **20080731012336] [Document MachOp Max Bolingbroke **20080731012336] [Document Dataflow Max Bolingbroke **20080731012336] [Document DFMonad Max Bolingbroke **20080731012336] [Document NameSet Max Bolingbroke **20080731012333] [Document NameEnv Max Bolingbroke **20080731012333] [Document Module Max Bolingbroke **20080731012332] [Document DataCon Max Bolingbroke **20080731012316] [Document BasicTypes Max Bolingbroke **20080731012306] [Rename maybeTyConSingleCon to tyConSingleDataCon_maybe Max Bolingbroke **20080731010537] [Ignore git files Max Bolingbroke **20080731010509] [Fix ifBuildable Ian Lynagh **20080801141731] [Update assertErrorName; assertError has moved to Control.Exception Ian Lynagh **20080801011028] [Fix the catching of "IOEnv failure" with extensible extensions Ian Lynagh **20080731194252] [Follow changes in the base library Ian Lynagh **20080731173354 TopHandler now uses the new extensible exceptions module, so we need to interact with it using the new types. ] [Add the Exception module to ghc.cabal Ian Lynagh **20080730213419] [Fix building with extensible exceptions Ian Lynagh **20080730194508] [Mark the ghc package as not exposed Ian Lynagh **20080730172124] [Follow extensible exception changes Ian Lynagh **20080730120134] [When raising NonTermination with the RTS, build the right value Ian Lynagh **20080621144528 We now use a nonTermination value in the base library to take take of constructing the SomeException value, with the dictionaries etc, for us. We'll probably need to do the same for some other exceptions too ] [Fix the way we pass GMP_INCLUDE_DIRS to hsc2hs; spotted by Andres Loh Ian Lynagh **20080730114713 We were still building the flags in Haskell list syntax, but we now pass the arguments directly rather than constructing a Haskell program with them. ] [UNDO: FIX #2375: remove oc->lochash completely, it apparently isn't used Simon Marlow **20080804111801] [workaround #2277: turn off the RTS timer when calling into editline Simon Marlow **20080730135918] [Fix a typo in powerpc/Linux-only code; spotted by Jeroen Pulles Ian Lynagh **20080729214007] [Add the runghc wrapper script Ian Lynagh **20080729211852] [Make cabal-bin not do any building, even of Setup.hs, when it is asked to clean Ian Lynagh **20080729202410] [Update the test in Makefile that we have all the boot libs Ian Lynagh **20080729201640] [Update boot's test that we have all of the bootlibs Ian Lynagh **20080729201032] [Make the push-all script complain about bad lines Ian Lynagh **20080729200613] [Add some comments to packages/darcs-all Ian Lynagh **20080729151934] [Remove ndp from libraries/Makefile. We now use dph instead. Ian Lynagh **20080729141917] [Add dph to ./packages and darcs-all Ian Lynagh **20080729141850] [Remove cabal-install from ./packages; we've decided not to build it Ian Lynagh **20080729141824] [FIX #2388: check that the operand fits before using the 'test' opcode Simon Marlow **20080730105231] [oops, fix a small pessimisation made in previous refactoring Simon Marlow **20080730105203] [FIX #2375: remove oc->lochash completely, it apparently isn't used Simon Marlow **20080730101252] [FIX #2327: a fault in the thunk-selector machinery (again) Simon Marlow **20080729150518 This program contains an expression of the form let x = snd (_, snd (_, snd (_, x))) (probably not explicitly, but that's what appears in the heap at runtime). Obviously the program should deadlock if it ever enters this thing, but apparently the test program in #2327 never does. The GC tries to evaluate the snd closures, and gets confused due to the loop. In particular the earlier fix for #1038 was to blame. ] [FIX #2332: avoid overflow on 64-bit machines in the memory allocator Simon Marlow **20080729150459] [understand absolute pathnames on Windows too Simon Marlow **20080728102243] [change where we put gcc-lib/ld.exe to keep Cabal happy Simon Marlow **20080728100852] [move an inline function to keep older versions of gcc happy Simon Marlow **20080725144708 no idea why this only just showed up... ] [Change the calling conventions for unboxed tuples slightly Simon Marlow **20080728155621 When returning an unboxed tuple with a single non-void component, we now use the same calling convention as for returning a value of the same type as that component. This means that the return convention for IO now doesn't vary depending on the platform, which make some parts of the RTS simpler, and fixes a problem I was having with making the FFI work in unregisterised GHCi (the byte-code compiler makes some assumptions about calling conventions to keep things simple). ] [don't strip the inplace GHC executables (for debugging) Simon Marlow **20080728134647] [Complete the changes for #1205 Simon Marlow **20080728105141 Now ":load M" always searches for a module called "M", rather than using a file called "M.hs" if that exists. To get the file semantics (i.e. not loading "M.o"), use ":load M.hs". ] [update the comments about how we find $topdir Simon Marlow **20080725151406] [try to fix the way we find $topdir Simon Marlow **20080725142828] [Fix building runghc on Windows Ian Lynagh **20080724182831] [Follow darcs-all changes in push-all Ian Lynagh **20080724164153] [Rejig how darcs-all works Ian Lynagh **20080724164142 It's now easier to add new repos anywhere in the source tree ] [Remove the OpenGL family of libraries from extralibs Ian Lynagh **20080724102736] [compiler/package.conf.in is no longer used, so remove it Ian Lynagh **20080724101610] [for the installed versions, don't use dynamic-linking wrappers Simon Marlow **20080725134551] [don't steal %ebx for the GC on x86: it's also used by PIC Simon Marlow **20080725122921] [SRT labels don't need to be globally visible Simon Marlow **20080725080901 Saves space in the symbol table and speeds up linking ] [Don't prematurely link shared libraries against the RTS package Simon Marlow **20080724155001 We want to be able to pick the RTS flavour (e.g. -threaded) when we link the final program. ] [add --enable-shared to configure, and $(BuildSharedLibs) to the build system Simon Marlow **20080724154925] [use RTLD_LAZY instead of RTLD_NOW Simon Marlow **20080724152727 RTLD_NOW apparently causes some problems, according to previous mailing-list discussion http://www.haskell.org/pipermail/cvs-ghc/2007-September/038570.html ] [debug output tweak Simon Marlow **20080724152636] [small cleanup Simon Marlow **20080724151614] [Fix a build error on powerpc/Linux; spotted by Jeroen Pulles Ian Lynagh **20080723191948] [If the extension is not .lhs, runghc now treats it as .hs; fixes trac #1232 Ian Lynagh **20080723182156] [runghc now uses the compiler that it comes with; fixes trac #1281 Ian Lynagh **20080723181115 rather than the first one that it finds on the PATH ] [Use the upstream hsc2hs repo Ian Lynagh **20080723155021] [Remove some redundancy in darcs-all Ian Lynagh **20080723143804] [Tell Cabal where gcc is Ian Lynagh **20080723001202] [allow EXTRA_HC_OPTS to be used from the command-line Simon Marlow **20080724081728] [put the inplace GHC in stageN-inplace/ghc instead of stageN-inplace/bin/ghc Simon Marlow **20080724080951 just saves a bit of typing ] [add a "rebuild" target for convenience Simon Marlow **20080723143201] [set PAPI_LIB_DIR="" when we don't have PAPI (clean up package.conf) Simon Marlow **20080722141327] [remove -fvia-C that I apparrently accidentally added recently Simon Marlow **20080722141255] [Undo fix for #2185: sparks really should be treated as roots Simon Marlow **20080723125205 Unless sparks are roots, strategies don't work at all: all the sparks get GC'd. We need to think about this some more. ] [Warn about unrecognised pragmas; these often mean we've typoed Ian Lynagh **20080722235550] [Sync hsc2hs's Main.hs with the Cabal repo Ian Lynagh **20080722203646] [We need to clean the utils on "distclean", as well as "clean" Ian Lynagh **20080722170754] [Clean stage 3 Ian Lynagh **20080722170542] [Add replacements for the -optdep flags, and deprecate the old ones Ian Lynagh **20080722163308] [Fix the stage3 build Ian Lynagh **20080722125743] [Fixes for haddock 0.8 Ian Lynagh **20080721095256] [haddock the stage2 compiler if HADDOCK_DOCS is YES Ian Lynagh **20080720220622] [fix bug in sparkPoolSize (affects debug output only) Simon Marlow **20080723104322] [debug message tweaks Simon Marlow **20080723090050] [refactoring/tidyup: (not.is64BitInteger) -> is32BitInteger Simon Marlow **20080722092113] [First step for getting rid of the old -optdep flags Ian Lynagh **20080720203239 They are now handled by the main flag parser, rather than having their own praser that runs later. As an added bonus, 5 global variables are also gone. ] [Fix Haddock errors. Thomas Schilling **20080720173151] [Fix Haddock errors. Thomas Schilling **20080720173117] [Fix Haddock errors. Thomas Schilling **20080720173105] [Fix Haddock errors. Thomas Schilling **20080720173017] [Fix Haddock errors. Thomas Schilling **20080720172614] [Fix Haddock errors. Thomas Schilling **20080720172401] [Fix Haddock errors. Thomas Schilling **20080720172242] [Fix Haddock errors. Thomas Schilling **20080720172222] [Fix Haddock errors. Thomas Schilling **20080720172139] [Fix Haddock errors. Thomas Schilling **20080720172114] [Fix Haddock errors. Thomas Schilling **20080720172054] [Fix Haddock errors. Thomas Schilling **20080720172010] [Fix Haddock errors. Thomas Schilling **20080720171723] [Fix Haddock errors. Thomas Schilling **20080720171554] [Fix Haddock errors. Thomas Schilling **20080720171529] [Fix Haddock errors. Thomas Schilling **20080720171424] [Fix Haddock errors. Thomas Schilling **20080720171113] [Fix Haddock errors. Thomas Schilling **20080720170708] [Fix Haddock errors. Thomas Schilling **20080720170601] [Fix Haddock errors. Thomas Schilling **20080720170421] [Fix Haddock errors. Thomas Schilling **20080720165845] [Fix Haddock errors. Thomas Schilling **20080720165637] [Fix Haddock errors. Thomas Schilling **20080720164133] [Properly comment out unused pragmas Ian Lynagh **20080720135604 We now say -- {-# SPECIALIZE ... rather than {-# -- SPECIALIZE ... ] [Add a WARNING pragma Ian Lynagh **20080720120918] [Put a #! line in ghc-pkg's shell wrapper Ian Lynagh **20080719112544] [Fix ghc-pkg inplace on Windows Ian Lynagh **20080719002613] [Some "install" and "clean" fixes Ian Lynagh **20080718223656] [Change how inplace detection works, so that it also works on Windows Ian Lynagh **20080718210836] [More dependency wibbling Ian Lynagh **20080718193454] [Build system tweaks Ian Lynagh **20080718184706] [We need to make Parser.y and Config.hs earlier Ian Lynagh **20080718180441] [Explicitly list HpcParser as a module in hpc-bin Ian Lynagh **20080718174657 Cabal doesn't preprocess the .y file otherwise. ] [Disable building pwd and lndir for now Ian Lynagh **20080718170329] [Build hpc with Cabal Ian Lynagh **20080718170047] [Build runghc with Cabal Ian Lynagh **20080718165317] [Add a comment Ian Lynagh **20080718154238] [Tweak the build system for installPackage Ian Lynagh **20080718153956] [More build system changes; hasktags is now built with Cabal Ian Lynagh **20080718153459] [Remove a comment Ian Lynagh **20080718115044] [More build system changes; ghc-pkg is now built with Cabal Ian Lynagh **20080718114753] [Fix some argument names Ian Lynagh **20080717223543] [Tweak the hsc2hs wrapper script Ian Lynagh **20080717194916] [Fix the order in which things get built Ian Lynagh **20080717192402] [Split building the ghc package and binary into "boot" and "all" steps Ian Lynagh **20080717150746 In "boot" we configure, and in "all" we do the actual building. ] [Install the compiler during make install Ian Lynagh **20080717150453 For now we always install stage 2 ] [Do the building and installing of hsc2hs with the stage1 compiler Ian Lynagh **20080717150420] [Remove some duplication Ian Lynagh **20080717144906] [Windows fixes Ian Lynagh **20080716222719] [Fix GHC finding extra-gcc-opts on Windows Ian Lynagh **20080716222457] [Fix the inplace compiler finding package.conf on Windows Ian Lynagh **20080716215000] [Fix the build with GHC 6.4.2 Ian Lynagh **20080716192836] [Get building GHC itself with Cabal more-or-less working Ian Lynagh **20080716150441 Installing and bindist creation don't work, but they were already broken. Only tested validating with one setup. ] [TAG Before cabalised-GHC Ian Lynagh **20080719132217] [non-threaded RTS: don't assume deadlock if there are signal handlers to run Simon Marlow **20080715130316] [update the text about header files and -#include Simon Marlow **20080715101119] [Fix for 1st half of #2203 Manuel M T Chakravarty **20080715052751] [Fix check of rhs of type family instances (#2157) Manuel M T Chakravarty **20080714094524] [FIX BUILD on Windows Simon Marlow **20080714153411] [add NetBSD to some of the #ifdefs (patch partly from 6.8 branch) Simon Marlow **20080714145040] [If HADDOCK_DOCS is YES, then fail the build early if we couldn't find haddock Ian Lynagh **20080713165305 This fixes trac #2266. ] [Fix some build problems when GHCI is not definde Ian Lynagh **20080713121309] [Add PostfixOperators flag for (e op) postfix operators; fixes trac #1824 Ian Lynagh **20080712203725 -fglasgow-exts also turns it on. ] [Remove the hack to avoid darcs-all operating on bootstrapping directories Ian Lynagh **20080712170638 We no longer create those directories ] [Teach installPackage about --distpref and --enable-shell-wrappers Ian Lynagh **20080712134346] [Handle passing hsc2hs to Cabal better Ian Lynagh **20080711214358 If it has been built then we pass it, even if we are still using the bootstrapping compiler. ] [Move installPackage out into its own cabal package under utils/ Ian Lynagh **20080711211615] [Split up Cabal configure flag variables for more flexibility Ian Lynagh **20080711151448] [Move -fno-cse flags from Makefile into pragmas Ian Lynagh **20080711123151 These are needed for GLOBAL_VAR's to work properly ] [Remove the need for undecidable instances in LazyUniqFM Ian Lynagh **20080711131421] [Change pragma order to stop GHC 6.4 getting confused Ian Lynagh **20080710190614] [-H80m isn't allowed in an options pragma. Just remove it for now. Ian Lynagh **20080710163048] [Remove a commented-out flag Ian Lynagh **20080710141129] [Remove an HPUX-only flag which has no comment explaining its purpose Ian Lynagh **20080710141032 It's probably to work around a long-dead bug ] [Move more flags from the Makefile into pragmas Ian Lynagh **20080710140757] [Move the definition of NONEXISTENT into the central cabal-flags.mk Ian Lynagh **20080710135213] [Define CABAL in mk/cabal-flags.mk, rather than everywhere we use it Ian Lynagh **20080710134928] [Typo fixed Ian Lynagh **20080710134748] [Remove a redundant comment Ian Lynagh **20080710134656] [Remove remnants of javaGen Ian Lynagh **20080710132654] [Remove some remnants of ilxgen Ian Lynagh **20080710132417] [Remove a comment for GHC <= 4.08 Ian Lynagh **20080710132107] [Remove .hi-boot-[56] stuff from the Makefile Ian Lynagh **20080710131528] [Remove a flag that a comment claims is for GHC < 5 Ian Lynagh **20080710130925] [We can now unconditionally use -fno-warn-orphans Ian Lynagh **20080710125948 ...which is good, as the conditional test was broken anyway! ] [Move another flag from the Makefile into a pragma Ian Lynagh **20080710125422] [Move some flags from the Makefile into module pragmas Ian Lynagh **20080710124827] [Move "main/BinIface_HC_OPTS += -O" into a pragma in iface/BinIface.hs Ian Lynagh **20080710124141 I assume that we still want this, despite it having been disconnected when the module was moved. ] [Remove an ancient commented out "parser/Parser_HC_OPTS += -fasm" Ian Lynagh **20080710123655] [remove what looks like a cut-and-pasto Simon Marlow **20080714132808] [fix #2434: we weren't waiting long enough for the signal Simon Marlow **20080714111007] [Make showSDoc and printDoc use the same default width (100) Simon Marlow **20080714083654 For some reason they were different (100/120), which made some tests produce different output when I moved from showSDoc to printDoc for error messages. ] [FIX #2322: add exceptions for more functions in math.h Simon Marlow **20080711152703] [FIX #2248 Simon Marlow **20080711151146 Unconditionally add .exe to the output executable name when using --make on Windows, and no -o option was given. ] [add a comment to the effect that printDoc prints FastStrings in UTF-8 Simon Marlow **20080711151135] [FIX #2302: print FastStrings in UTF-8 in error messages Simon Marlow **20080711151116 This is all a bit of a mess, but can hopefully be improved when we get encoding/decoding support in Handles. ] [FIX #2278: don't complain if the -odir directory doesn't exist Simon Marlow **20080711134301 we'll create it anyway ] [add "ghc-pkg dump" (fixes #2201) Simon Marlow **20080711121739] [small improvement to an error message Simon Marlow **20080711120153] [#2371: try to explain the difference between :module and :load Simon Marlow **20080711120046] [FIX #2381, and improve the fix for #1565 Simon Marlow **20080711101839] [add threadStatus# primop, for querying the status of a ThreadId# Simon Marlow **20080710151406] [ObjectIO is no longer an extralib Ian Lynagh **20080709135722] [Remove all references to -mno-cygwin Ian Lynagh **20080709125554 We shouldn't need it, as we don't call cygwin's gcc, and it was causing problems with the nightly builders passing it to GHC. ] [oops, fix more register clobberage Simon Marlow **20080710115221 fixes crash with -threaded -debug for me ] [rts_evalStableIO: start the new thread in blocked mode Simon Marlow **20080709135447] [add new primop: asyncExceptionsBlocked# :: IO Bool Simon Marlow **20080709135337] [#1205: ':load foo.hs' in GHCi always compiles to bytecode Simon Marlow **20080709110830 So now :load foo.hs loads bytecode for foo.hs, even if foo.o exists :load foo is just shorthand for :load foo.hs :load M loads a module M, as object code if possible (no change here) :set -fobject-code :load foo.hs loads foo.hs as object code; an existing foo.o can be used. This turned out to be very straightforward: when building the ModSummary for a file (summariseFile) we just ignore the object file unless -fobject-code is on. ] [add -fwarn-dodgy-foreign-imports (see #1357) Simon Marlow **20080709102143 From the entry in the User's guide: -fwarn-dodgy-foreign-imports causes a warning to be emitted for foreign imports of the following form: foreign import "f" f :: FunPtr t on the grounds that it probably should be foreign import "&f" f :: FunPtr t The first form declares that `f` is a (pure) C function that takes no arguments and returns a pointer to a C function with type `t`, whereas the second form declares that `f` itself is a C function with type `t`. The first declaration is usually a mistake, and one that is hard to debug because it results in a crash, hence this warning. ] [Treat the Unicode "Letter, Other" class as lowercase letters (#1103) Simon Marlow **20080709091252 This is an arbitrary choice, but it's strictly more useful than the current situation, where these characters cannot be used in identifiers at all. In Haskell' we may revisit this decision (it's on my list of things to discuss), but for now this is an improvement for those using caseless languages. ] [FIX part of #2301, and #1619 Simon Marlow **20080709084916 2301: Control-C now causes the new exception (AsyncException UserInterrupt) to be raised in the main thread. The signal handler is set up by GHC.TopHandler.runMainIO, and can be overriden in the usual way by installing a new signal handler. The advantage is that now all programs will get a chance to clean up on ^C. When UserInterrupt is caught by the topmost handler, we now exit the program via kill(getpid(),SIGINT), which tells the parent process that we exited as a result of ^C, so the parent can take appropriate action (it might want to exit too, for example). One subtlety is that we have to use a weak reference to the ThreadId for the main thread, so that the signal handler doesn't prevent the main thread from being subject to deadlock detection. 1619: we now ignore SIGPIPE by default. Although POSIX says that a SIGPIPE should terminate the process by default, I wonder if this decision was made because many C applications failed to check the exit code from write(). In Haskell a failed write due to a closed pipe will generate an exception anyway, so the main difference is that we now get a useful error message instead of silent program termination. See #1619 for more discussion. ] [Fix build; Opt_LinkHaskell98 is now Opt_AutoLinkPackages Ian Lynagh **20080708224005] [Extend the flag for not automatically linking haskell98 Ian Lynagh **20080708165654 It now also doesn't automatically link base and rts either. We need this when we've done a build, so base and rts are in the package.conf, but we've then cleaned the libraries so they don't physically exist any more. ] [Remove all .hi-boot-6 files Ian Lynagh **20080708150059 From 6.4 onwards we use .(l)hs-boot instead. Spotted by Max Bolingbroke. ] [Add some missing deps in libraries/Makefile Ian Lynagh **20080708142752] [Get rid of compat/ Ian Lynagh **20080708002717 Compat.Unicode is not utils/Unicode in the compiler. We build the hpc package with the stage1 compiler. Nothing else in the compat package was still used. ] [Fix some random register clobbering in takeMVar/putMVar Simon Marlow **20080709083128 This showed up as a crash in conc032 for me. ] [Add a comment in validate saying where the hpc HTML is put Ian Lynagh **20080707103816] [Fix Trac #2414: occurrs check was missed simonpj@microsoft.com**20080707103201 This is an embarassing one: a missing occurs check meant that a type-incorrect program could leak through. Yikes! (An indirect consequence of extra complexity introduced by boxy types. Sigh.) Merge to 6.8.4 if we release it. ] [White space only simonpj@microsoft.com**20080707103145] [White space only simonpj@microsoft.com**20080707103110] [Fix Trac #2386: exceesive trimming of data types with Template Haskell simonpj@microsoft.com**20080707102941 See Note [Trimming and Template Haskell] in TidyPgm. Merge to 6.8.4 if we ever release it. ] [ANSI-ise a function declaration Simon Marlow **20080708110430] [remove old #ifdef SMP bits Simon Marlow **20080708110410] [FIX #1736, and probably #2169, #2240 Simon Marlow **20080707095836 appendStringBuffer was completely bogus - the arguments to copyArray were the wrong way around, which meant that corruption was very likely to occur by overwriting the end of the buffer in the first argument. This definitely fixes #1736. The other two bugs, #2169 and #2240 are harder to reproduce, but we can see how they could occur: in the case of #2169, the options parser is seeing the contents of an old buffer, and in the case of #2240, appendStringBuffer is corrupting an interface file in memory, since strng buffers and interface files are both allocated in the pinned region of memory. ] [Add hsc2hs.wrapper Ian Lynagh **20080705214104] [Fix hsc2hs finding its template file on Windows Ian Lynagh **20080705185829] [On cygwin, convert happy's path to a native path Ian Lynagh **20080705163113] [On cygwin, convert Haddock's path to a native path Ian Lynagh **20080705162154] [On cygwin, convert alex's path to a native path Ian Lynagh **20080705155559] [libffi now doesn't have an artificial make boot/all split Ian Lynagh **20080705155025] [Need to make all in gmp, not boot Ian Lynagh **20080705153245] [gmp didn't really fit into the make boot/all cycle, so don't try to force it Ian Lynagh **20080705140354 Now we just run make in it at the start of the stage1 build ] [Build hsc2hs with Cabal Ian Lynagh **20080705134208 This is very rough around teh edges at the moment. ] [Add a flag to disable linking with the haskell98 package Ian Lynagh **20080705134115] [Use the last compiler if more than one is specified Ian Lynagh **20080705121426] [Improve error messages from pwd Ian Lynagh **20080704233343] [In utils/hsc2hs, add LICENSE and hsc2hs.cabal from the standalone repo Ian Lynagh **20080704222206] [Remove fgl from the libraries Makefile Ian Lynagh **20080704221026 It's no longer an extralib ] [Tell the bootstrapping Cabal where ghc-pkg is Ian Lynagh **20080704152713] [FIX #2398: file locking wasn't thread-safe Simon Marlow **20080704144626] [Remove Cabal modules from compat Ian Lynagh **20080703224633 We now get them from the bootstrapping package.conf instead ] [Fix trac #2307: conflicting functional dependencies Ian Lynagh **20080703192540 We were accepting some instances that should have been rejected as their fundep constraints were violated. e.g. we accepted class C a b c | b -> c instance C Bool Int Float instance C Char Int Double ] [If we know where alex, haddock and happy are then tell Cabal; fixes trac #2373 Ian Lynagh **20080703191031] [Don't clean bootstrapping bits when cleaning libraries Ian Lynagh **20080703154647] [More libraries/Makefile fixes Ian Lynagh **20080703141016] [Shove the GHC path through cygpath -m Ian Lynagh **20080703132614] [Tweak the configure script Windows-specific bits Ian Lynagh **20080703132437] [Use cygpath -m, rather than fudging it ourselves with sed Ian Lynagh **20080703131725] [Fix build on Windows Ian Lynagh **20080703124553] [Include ghc.spec in tarballs; patch from, and fixes, trac #2390 Ian Lynagh **20080703161457] [Add a program for describing unexpected tests in testlog Ian Lynagh **20080703134003 This goes through the testlog and spits out any sections that contain "unexpected". ] [Teach cabal-bin how to build Setup programs Ian Lynagh **20080703001300 We now build a copy of Cabal and put it in a bootstrapping package.conf. We also make boot in libraries much earlier in the build process, so we can use cabal-bin for more stuff in the future. ] [Wibble cabal-bin's error message Ian Lynagh **20080702155937 We don't need to put the program name in it, as that happens automatically ] [Add type signatures Roman Leshchinskiy **20080703023635] [Command-line options for selecting DPH backend Roman Leshchinskiy **20080702022202 It's -fdph-seq and -fdph-par at the moment, I'll think of a nicer setup later. ] [Add missing dph package to Makefile Roman Leshchinskiy **20080702022142] [Slight refactoring Roman Leshchinskiy **20080701025227] [Rename *NDP* -> *DPH* Roman Leshchinskiy **20080701024559] [Parametrise vectoriser with DPH package Roman Leshchinskiy **20080701024515] [Don't use DPH backend directly in vectoriser Roman Leshchinskiy **20080701021436] [Make dph-seq and dph-par wired-in packages Roman Leshchinskiy **20080701020214] [FIX #2313 do not include BFD symbols in RTS when the BFD library is not available for linking Karel Gardas **20080528093139] [Add --slow (and --fast) options to validate Ian Lynagh **20080701175927 slow mode is 14% slower than normal. It uses -DDEBUG for the stage 2 compiler, and -XGenerics for the stage 2 compiler and the libraries. I believe that most of the slowdown is actually caused by -XGenerics rather than -DDEBUG. ] [Fix Trac #2307: need to nub bad fundep reports simonpj@microsoft.com**20080701165830] [Easy fix for Trac #2409 simonpj@microsoft.com**20080701163722 Yurgh. See Note [Desugaring seq (3)] ] [Make a "validate --hpc"; shows how much of the compiler the testsuite tests Ian Lynagh **20080701124515 Currently it causes a load of ghci-debugger tests to fail and takes 63% longer. ] [Allow the exact HPC tix filename to be given in the HPCTIXFILE env var Ian Lynagh **20080701124320] [array is now warning-free Ian Lynagh **20080630204126] [Several fixes to 'deriving' including Trac #2378 simonpj@microsoft.com**20080701120908 This patch collects several related things together. * Refactor TcDeriv so that the InstInfo and the method bindings are renamed together. This was messy before, and is cleaner now. Fixes a bug caused by interaction between the "auxiliary bindings" (which were given Original names before), and stand-alone deriving (which meant that those Original names came from a different module). Now the names are purely local an ordinary. To do this, InstInfo is parameterised like much else HsSyn stuff. * Improve the location info in a dfun, which in turn improves location info for error messages, e.g. overlapping instances * Make sure that newtype-deriving isn't used for Typeable1 and friends. (Typeable was rightly taken care of, but not Typeable1,2, etc.) * Check for data types in deriving Data, so that you can't do, say, deriving instance Data (IO a) * Decorate the derived binding with location info from the *instance* rather than from the *tycon*. Again, this really only matters with standalone deriving, but it makes a huge difference there. I think that's it. Quite a few error messages change slightly. If we release 6.8.4, this should go in if possible. ] [Follow Cabal changes Ian Lynagh **20080629211633] [Rename cabal to cabal-bin Ian Lynagh **20080629110003 Avoids conflicts with the Cabal library on case-insensitive filesystems ] [mkdirhier.sh now accepts -q, which makes it be quiet Ian Lynagh **20080627233528] [Update .darcs-boring Ian Lynagh **20080627181410] [Update darcs-boring Ian Lynagh **20080627154142] [Update .darcs-boring Ian Lynagh **20080627145633] [Follow Cabal changes Ian Lynagh **20080626202749] [Absolutify a path Ian Lynagh **20080626181134 When building ghc-prim/Setup we weren't putting the hi files in the right place. ] [Remove fgl from extralibs Ian Lynagh **20080626112739] [Use a program similar to cabal-install to build the libraries Ian Lynagh **20080626112511 This means that we don't have to make a Setup program for each library individually, and also simplifies the build system a bit. ] [Fix Trac #2394: test for non-algebraic types in standalone deriving simonpj@microsoft.com**20080625160204] [() is now in ghc-prim:GHC.Unit Ian Lynagh **20080624144849] [Generate a warning-free GHC.PrimopWrappers. ghc-prim is now -Wall clean. Ian Lynagh **20080624122529] [Fix some inconsistencies in the code and docs of primitives Ian Lynagh **20080623223454 We were inconsistent about whether to use the name "MutArr#" or "MutableArray#". Likewise ByteArr#/ByteArray# and MutByteArr#/MutableByteArray#. ] [Fix the build with GHC 6.4 Ian Lynagh **20080623144426] [Don't rebuild things with the stage2 compiler Ian Lynagh **20080622134613 It leads to annoying rebuilding when working in a built tree. We'll handle this differently for 6.10. ] [editline is now warning-free Ian Lynagh **20080620212110] [Remove special handling for character types of characters >= 128, <= 255 Ian Lynagh **20080621171100 Many of the character types were wrong. Now the asc* names really do mean ASCII, rather than latin-1. ] [Remove code that isn't used now that we assume that GHC >= 6.4 Ian Lynagh **20080620193003] [Now that we require GHC >= 6.4.2, System.IO.Error is always available Ian Lynagh **20080620191059] [hpc is -Wall clean Ian Lynagh **20080620142058] [filepath is now warning-free Ian Lynagh **20080620135652] [pretty is now -Wall clean Ian Lynagh **20080620135335] [process is now -Wall clean Ian Lynagh **20080620011832] [directory is now -Wall clean Ian Lynagh **20080620011335] [integer-gmp is warning-free Ian Lynagh **20080619235925] [packedstring is now -Wall clean Ian Lynagh **20080619235612] [old-time is now warning-free Ian Lynagh **20080619233127] [old-locale is now warning-free Ian Lynagh **20080619232152] [random is now -Wall clean Ian Lynagh **20080619140211] [bytestring is -Wall clean Ian Lynagh **20080619010702] [Cabal is -Wall clean Ian Lynagh **20080619010436] [The haskell98 library is -Wall clean Ian Lynagh **20080619010124] [template-haskell is now -Wall clean Ian Lynagh **20080619005811] [containers is now -Wall clean Ian Lynagh **20080618233651] [Remove out of date comments and point to the commentary Simon Marlow **20080620135258 The wiki commentary is now the official description of recompilation checking. http://hackage.haskell.org/trac/ghc/wiki/Commentary/Compiler/RecompilationAvoidance ] [document some RTS options I added a while ago: -qm, -qw Simon Marlow **20080619121227] [Document the change to +RTS -S/-s/-t Simon Marlow **20080619121201] [document paralel GC option: +RTS -g Simon Marlow **20080619121111] [Make the wired-in packages code handle ndp mapping to ndp-seq or ndp-par Ian Lynagh **20080618162233 It's getting a bit crufty - could probably do with a rewrite. ] [Put the infrastructure in place for getting the libraries -Wall clean Ian Lynagh **20080617020145 libraries/Makefile.local now lists those for which we need to pass -w (currently this is every library). ] [utils/Digraph doesn't need -fglasgow-exts passed specially Ian Lynagh **20080616225949] [Fix Trac #2321: bug in SAT simonpj@microsoft.com**20080616201700 This is a fairly substantial rewrite of the Static Argument Transformatoin, done by Max Bolingbroke and reviewed and modified by Simon PJ. * Fix a subtle scoping problem; see Note [Binder type capture] * Redo the analysis to use environments * Run gentle simlification just before the transformation ] [FIX BUILD on Windows Simon Marlow **20080618094700] [+RTS -S -RTS now sends output to stderr (also -s) Simon Marlow **20080619113329 Previously +RTS -Sstderr -RTS was required to send output to stderr, but this is the most common usage and I got tired of typing "stderr". The old default behaviour of sending output to .stat is now gone (I don't think we use it anywhere). Temporarily we allowed +RTS -S- -RTS to mean stderr; there were objections to this, so it is now also gone. ] [fix a tiny bug spotted by gcc 4.3 Simon Marlow **20080619100904] [Fix up inlines for gcc 4.3 Simon Marlow **20080619100849 gcc 4.3 emits warnings for static inline functions that its heuristics decided not to inline. The workaround is to either mark appropriate functions as "hot" (a new attribute in gcc 4.3), or sometimes to use "extern inline" instead. With this fix I can validate with gcc 4.3 on Fedora 9. ] [fix warnings with gcc 4.3 Simon Marlow **20080618144307] [it's time to retire ghcprof & friends Simon Marlow **20080618140228] [define NeedVarargsPrototypes to avoid segfault on x86_64 Simon Marlow **20080618132116] [fix gcc warnings for printf formats on 32-bit Simon Marlow **20080618094018] [small interpreter fix Simon Marlow **20080617134651] [fix some printf formats for 64 bits Simon Marlow **20080617101102] [64-bit fixes Simon Marlow **20080617101045] [don't try to parallelise marking GC (yet) Simon Marlow **20080616073111] [another stableptr003 fix Simon Marlow **20080609191722] [Experimental "mark-region" strategy for the old generation Simon Marlow **20080609174943 Sometimes better than the default copying, enabled by +RTS -w ] [threadStackUnderflow: fix up the bd->free pointers in the split blocks Simon Marlow **20080609171617] [fix allocated blocks calculation, and add more sanity checks Simon Marlow **20080608073754] [Put the contents of Evac.c-inc back in Evac.c, and just compile the file twice Simon Marlow **20080603073119 Similarly for Scav.c/Scav.c-inc. ] [+RTS -N also sets +RTS -g Simon Marlow **20080603072701] [DECLARE_GCT for when we have no register variable Simon Marlow **20080603072608] [comment updates Simon Marlow **20080603072527] [fix some types for 64-bit platforms Simon Marlow **20080603032625] [+RTS -S- is the same as +RTS -Sstderr Simon Marlow **20080603032557] [move the spinlock counts inside +RTS -S Simon Marlow **20080603032534] [FIX #2164: check for ThreadRelocated in isAlive() Simon Marlow **20080528063904] [FIX the compacting GC again Simon Marlow **20080424205829] [FIX #2185: sparks should not be treated as roots by the GC Simon Marlow **20080424205813] [turn off the usleep() in the GC thread idle loop (tmp, for portability) Simon Marlow **20080417220221] [declare the GC thread register variable more portably Simon Marlow **20080417220157] [remove EVACUATED: store the forwarding pointer in the info pointer Simon Marlow **20080417212707] [tso->link is now tso->_link (fix after merge with HEAD) Simon Marlow **20080417180016] [Don't look at all the threads before each GC. Simon Marlow **20080416234446 We were looking at all the threads for 2 reasons: 1. to catch transactions that might be looping as a result of seeing an inconsistent view of memory. 2. to catch threads with blocked exceptions that are themselves blocked. For (1) we now check for this case whenever a thread yields, and for (2) we catch these threads in the GC itself and send the exceptions after GC (see performPendingThrowTos). ] [Don't traverse the entire list of threads on every GC (phase 1) Simon Marlow **20080416234420 Instead of keeping a single list of all threads, keep one per step and only look at the threads belonging to steps that we are collecting. ] [optimisation for isAlive() Simon Marlow **20080416234349] [refactoring Simon Marlow **20080416234324] [add [] to foreign calls Simon Marlow **20080416234234] [remove GRAN/PAR code Simon Marlow **20080416234135] [bugfix for traverseBlackHoleQueue Simon Marlow **20080416234042] [Add a write barrier to the TSO link field (#1589) Simon Marlow **20080416233951] [fix trace Simon Marlow **20080416233922] [tmp: alloc one block at a time Simon Marlow **20080416233830] [add debugging code to check for fragmentation Simon Marlow **20080416233058] [do a better job of re-using partial blocks in subsequent GCs Simon Marlow **20080416232949] [Use the BF_EVACUATED flag to indicate to-space consistently Simon Marlow **20080416232906 BF_EVACUATED is now set on all blocks except those that we are copying. This means we don't need a separate test for gen>N in evacuate(), because in generations older than N, BF_EVACUATED will be set anyway. The disadvantage is that we have to reset the BF_EVACUATED flag on the blocks of any generation we're collecting before starting GC. Results in a small speed improvement. ] [rearrange: we were calling markSomeCapabilities too often Simon Marlow **20080416232825] [debug output: show mem in use Simon Marlow **20080416232739] [make +RTS -G1 work again Simon Marlow **20080416232510] [pad step_workspace to 64 bytes, to speed up access to gct->steps[] Simon Marlow **20080416232433] [update copyrights in rts/sm Simon Marlow **20080416232355] [Reorganisation to fix problems related to the gct register variable Simon Marlow **20080416232232 - GCAux.c contains code not compiled with the gct register enabled, it is callable from outside the GC - marking functions are moved to their relevant subsystems, outside the GC - mark_root needs to save the gct register, as it is called from outside the GC ] [faster block allocator, by dividing the free list into buckets Simon Marlow **20080416224541] [allocate more blocks in one go, to reduce contention for the block allocator Simon Marlow **20080416223824] [measure GC(0/1) times and work imbalance Simon Marlow **20080416222539] [remove outdated comment Simon Marlow **20080416222319] [calculate and report slop (wasted space at the end of blocks) Simon Marlow **20080416221516] [free empty blocks at the end of GC Simon Marlow **20080416221356] [move the scan block pointer into the gct structure Simon Marlow **20080416221331] [improvements to +RTS -s output Simon Marlow **20080416221224 - count and report number of parallel collections - calculate bytes scanned in addition to bytes copied per thread - calculate "work balance factor" - tidy up the formatting a bit ] [wait for threads to start up properly Simon Marlow **20080416221002] [debug output tweaks Simon Marlow **20080416220807] [Keep track of an accurate count of live words in each step Simon Marlow **20080416220620 This means we can calculate slop easily, and also improve predictability of GC. ] [Allow work units smaller than a block to improve load balancing Simon Marlow **20080416220347] [in scavenge_block1(), we can use the lock-free recordMutableGen() Simon Marlow **20080416220104] [update the debug counters following changes to scav_find_work() Simon Marlow **20080416215945] [change the find-work strategy: use oldest-first consistently Simon Marlow **20080416215815] [per-thread debug output when using multiple threads, not just major gc Simon Marlow **20080416215741] [small debug output improvements Simon Marlow **20080416215649] [allow parallel minor collections too Simon Marlow **20080416215503] [Specialise evac/scav for single-threaded, not minor, GC Simon Marlow **20080416215405 So we can parallelise minor collections too. Sometimes it's worth it. ] [move usleep(1) to gc_thread_work() from any_work() Simon Marlow **20080416215325] [use RTS_VAR() Simon Marlow **20080416215245] [treat the global work list as a queue rather than a stack Simon Marlow **20080416215109] [GC: move static object processinng into thread-local storage Simon Marlow **20080416214825] [tmp: usleep(1) during anyWork() if no work Simon Marlow **20080416214023] [anyWork(): count the number of times we don't find any work Simon Marlow **20080416213945] [stats fixes Simon Marlow **20080416213532] [Add +RTS -vg flag for requesting some GC trace messages, outside DEBUG Simon Marlow **20080416213504 DEBUG imposes a significant performance hit in the GC, yet we often want some of the debugging output, so -vg gives us the cheap trace messages without the sanity checking of DEBUG, just like -vs for the scheduler. ] [GC: rearrange storage to reduce memory accesses in the inner loop Simon Marlow **20080416213436] [Add profiling of spinlocks Simon Marlow **20080416213358] [rename StgSync to SpinLock Simon Marlow **20080416211152] [Release some of the memory allocated to a stack when it shrinks (#2090) simonmar@microsoft.com**20080228153129 When a stack is occupying less than 1/4 of the memory it owns, and is larger than a megablock, we release half of it. Shrinking is O(1), it doesn't need to copy the stack. ] [scavengeTSO might encounter a ThreadRelocated; cope simonmar@microsoft.com**20080228152403] [Updating a thunk in raiseAsync might encounter an IND; cope simonmar@microsoft.com**20080228152332 There was already a check to avoid updating an IND, but it was originally there to avoid a bug which doesn't exist now. Furthermore the test and update are not atomic, so another thread could be updating this thunk while we are. We have to just go ahead and update anyway - it might waste a little work, but this is a very rare case. ] [add GC(0) and GC(1) time Simon Marlow **20080222142008] [round_to_mblocks: should use StgWord not nat Simon Marlow **20080220130139] [debugging code Simon Marlow **20080219102651] [refactoring simonmar@microsoft.com**20080218135458] [fix off-by-one simonmar@microsoft.com**20080215134017] [measure mut_elapsed_time simonmar@microsoft.com**20080215133850] [fix build with 6.8 simonmar@microsoft.com**20080215133836] [add ROUNDUP_BYTES_TO_WDS simonmar@microsoft.com**20080215133040] [Allow +RTS -H0 as a way to override a previous -H simonmar@microsoft.com**20080131153645] [comment out a bogus assertion simonmar@microsoft.com**20080130150934] [memInventory: optionally dump the memory inventory simonmar@microsoft.com**20080130150921 in addition to checking for leaks ] [calcNeeded: fix the calculation, we weren't counting G0 step 1 simonmar@microsoft.com**20080130150730] [calcNeeded: add in the large blocks too simonmar@microsoft.com**20080130135418] [update a comment Simon Marlow **20080130101504] [tell Emacs these files are C simonmar@microsoft.com**20080130100047] [fix an assertion Simon Marlow **20080118160910] [cut-and-pasto Simon Marlow **20080116103751] [small rearrangement simonmar@microsoft.com**20080115095736] [recordMutableGen_GC: we must call the spinlocked version of allocBlock() Simon Marlow **20080111135453] [remove unused declaration simonmar@microsoft.com**20080111105821] [more fixes for THUNK_SELECTORs Simon Marlow **20080110122820] [Fix bug in eval_thunk_selector() simonmar@microsoft.com**20080110105628] [move markSparkQueue into GC.c, as it needs the register variable defined Simon Marlow **20080109162828] [Windows fix Simon Marlow **20080109162732] [Fix bug: eval_thunk_selector was calling the unlocked evacuate() Simon Marlow **20080109144937] [add GC elapsed time simonmar@microsoft.com**20080107134838] [update to match Mb -> MB change in -s output simonmar@microsoft.com**20071220145855] [use "MB" rather than "Mb" for abbreviating megabytes simonmar@microsoft.com**20071218145135] [findSlop: useful function for tracking down excessive slop in gdb simonmar@microsoft.com**20071214135909] [calculate wastage due to unused memory at the end of each block simonmar@microsoft.com**20071214135842] [bugfix: check for NULL before testing isPartiallyFull(stp->blocks) simonmar@microsoft.com**20071214103223] [have each GC thread call GetRoots() simonmar@microsoft.com**20071213165013 ] [use synchronised version of freeChain() in scavenge_mutable_list() simonmar@microsoft.com**20071213164525] [remove declarations for variables that no longer exist simonmar@microsoft.com**20071213150946] [remove old comment simonmar@microsoft.com**20071212163329] [GC: small improvement to parallelism simonmar@microsoft.com**20071129154927 don't cache a work block locally if the global queue is empty ] [EVACUATED: target is definitely HEAP_ALLOCED(), no need to check simonmar@microsoft.com**20071129120021] [in scavenge_block(), keep going if we're scanning the todo block simonmar@microsoft.com**20071127160747] [count the number of todo blocks, and add a trace simonmar@microsoft.com**20071127160717] [oops, restore accidentally disabled hash-consing for Char simonmar@microsoft.com**20071123162522] [kill the PAR/GRAN debug flags simonmar@microsoft.com**20071122122327] [stats: print elapsed time for GC in each generation simonmar@microsoft.com**20071122105024] [assertion fix simonmar@microsoft.com**20071121164736] [cache bd->todo_bd->free and the limit in the workspace Simon Marlow **20071121155851 avoids cache contention: bd->todo_bd->free may clash with any cache line, so we localise it. ] [warning fix simonmar@microsoft.com**20071121164747] [fix boundary bugs in a couple of for-loops simonmar@microsoft.com**20071120133835] [improvements to PAPI support simonmar@microsoft.com**20071120133635 - major (multithreaded) GC is measured separately from minor GC - events to measure can now be specified on the command line, e.g prog +RTS -a+PAPI_TOT_CYC ] [use SRC_CC_OPTS rather than SRC_HC_OPTS for C options simonmar@microsoft.com**20071119111630] [allow PAPI to be installed somewhere non-standard Simon Marlow **20071101150325] [fix warnings Simon Marlow **20071101150258] [fix a warning Simon Marlow **20071101150228] [fix a warning Simon Marlow **20071101150200] [rename n_threads to n_gc_threads Simon Marlow **20071031163147] [Refactor PAPI support, and add profiling of multithreaded GC Simon Marlow **20071031163015] [fix merge errors Simon Marlow **20071031153839] [refactoring of eager_promotion in scavenge_block() Simon Marlow **20071031153417] [compile special minor GC versions of evacuate() and scavenge_block() Simon Marlow **20071031153339 This is for two reasons: minor GCs don't need to do per-object locking for parallel GC, which is fairly expensive, and secondly minor GCs don't need to follow SRTs. ] [fixes for eval_thunk_selector() in parallel GC Simon Marlow **20071031153252] [Remove the optimisation of avoiding scavenging for certain objects Simon Marlow **20071031144542 Some objects don't need to be scavenged, in particular if they have no pointers. This seems like an obvious optimisation, but in fact it only accounts for about 1% of objects (in GHC, for example), and the extra complication means it probably isn't worth doing. ] [GC refactoring: change evac_gen to evac_step Simon Marlow **20071031144230 By establishing an ordering on step pointers, we can simplify the test (stp->gen_no < evac_gen) to (stp < evac_step) which is common in evacuate(). ] [GC refactoring: make evacuate() take an StgClosure** Simon Marlow **20071031143634 Change the type of evacuate() from StgClosure *evacuate(StgClosure *); to void evacuate(StgClosure **); So evacuate() itself writes the source pointer, rather than the caller. This is slightly cleaner, and avoids a few memory writes: sometimes evacuate() doesn't move the object, and in these cases the source pointer doesn't need to be written. It doesn't have a measurable impact on performance, though. ] [tiny optimisation in evacuate() Simon Marlow **20071031130935] [Initial parallel GC support Simon Marlow **20071031130718 eg. use +RTS -g2 -RTS for 2 threads. Only major GCs are parallelised, minor GCs are still sequential. Don't use more threads than you have CPUs. It works most of the time, although you won't see much speedup yet. Tuning and more work on stability still required. ] [Refactoring of the GC in preparation for parallel GC Simon Marlow **20071031125136 This patch localises the state of the GC into a gc_thread structure, and reorganises the inner loop of the GC to scavenge one block at a time from global work lists in each "step". The gc_thread structure has a "workspace" for each step, in which it collects evacuated objects until it has a full block to push out to the step's global list. Details of the algorithm will be on the wiki in due course. At the moment, THREADED_RTS does not compile, but the single-threaded GC works (and is 10-20% slower than before). ] [also count total dispatch stalls in +RTS -as Simon Marlow **20071030144509] [move GetRoots() to GC.c Simon Marlow **20071030130052] [Sort the mi_deps into a canonical ordering before fingerprinting. Simon Marlow **20080617152117 This may help do a little less recompilation with make (GHC's --make is unaffected). ] [Fix another "urk! lookup local fingerprint" in nofib/real/bspt/GeomNum.lhs Simon Marlow **20080617151530] [Fix an example where we weren't doing case-of-case when we should Simon Marlow **20080617123510 That's 1 line of new code and 38 lines of new comments ] [Tweak a comment to talk about UnboxedTuples rather than -fglasgow-exts Ian Lynagh **20080616225248] [Suggest -XRelaxedPolyRec rather than -fglasgow-exts in an error message Ian Lynagh **20080616213438] [Fix the splitter with perl 5.10; patch from Audrey Tang Ian Lynagh **20080611122837] [Remove some build system code that can't happen Ian Lynagh **20080616181425 ghc_ge_601 is no longer defined ] [Fix Trac #2358: 1-tuples in Template Haskell simonpj@microsoft.com**20080614123939 fons points out that TH was treating 1-tuples inconsistently. Generally we make a 1-tuple into a no-op, so that (e) and e are the same. But I'd forgotten to do this for types. It is possible to have a type with an un-saturated 1-tuple type constructor. That now elicits an error message when converting from TH syntax to Hs syntax ] [Fix nasty Simplifier scoping bug simonpj@microsoft.com**20080614023937 This bug was somehow tickled by the new code for desugaring polymorphic bindings, but the bug has been there a long time. The bindings floated out in simplLazyBind, generated by abstractFloats, were getting processed by postInlineUnconditionally. But that was wrong because part of their scope has already been processed. That led to a bit of refactoring in the simplifier. See comments with Simplify.addPolyBind. In principle this might happen in 6.8.3, but in practice it doesn't seem to, so probably not worth merging. ] [CoreLint should check for out-of-scope worker simonpj@microsoft.com**20080614023809] [More commandline flag improvements Ian Lynagh **20080616142917 * Allow -ffoo flags to be deprecated * Mark some -ffoo flags as deprecated * Avoid using deprecated flags in error messages, in the build system, etc * Add a flag to en/disable the deprecated flag warning ] [Remove an ifdef Ian Lynagh **20080616111114] [Add ghc_ge_609 Ian Lynagh **20080615134636] [Remove an ifdef Ian Lynagh **20080615133743] [Don't compile Cabal with -cpp -fffi Ian Lynagh **20080615010826 Instead rely on the sources having suitable pragmas ] [Remove a typo Ian Lynagh **20080615005956] [Allow -X flags to be deprecated, and deprecate RecordPuns; fixes #2320 Ian Lynagh **20080615000041] [Fix a warning in DsForeign Ian Lynagh **20080614215346] [Fix warnings in Linker Ian Lynagh **20080614212627] [Use the right set of linkables in unload_wkr Ian Lynagh **20080614211539] [Use bracket_ rather than bracket in withExtendedLinkEnv Ian Lynagh **20080614211414] [Remove more ifdeffery Ian Lynagh **20080614205131] [Remove more ifdeffery Ian Lynagh **20080614204234] [Remove more ifdeffery Ian Lynagh **20080614203215] [Remove some ifdeffery Ian Lynagh **20080614202640] [Fix some warnings in ParsePkgConf Ian Lynagh **20080614201558] [Fix warnings in DsForeign Ian Lynagh **20080614200820] [Fix warnings in PprCore Ian Lynagh **20080614195611] [Fix warnings in Main Ian Lynagh **20080614194120] [Set -Wall in compiler/Makefile.ghcbin Ian Lynagh **20080614193536] [Use maybePrefixMatch in StaticFlags rather than redefining it ourselves Ian Lynagh **20080614190505] [Use -fforce-recomp rather than -no-recomp Ian Lynagh **20080614181740] [Tweak the deprecated flags warning Ian Lynagh **20080614174850] [Use -O0 rather than -Onot in compiler/Makefile Ian Lynagh **20080614171256] [Don't use -recomp whem compiling GHC, as it's the default (and now deprecated) Ian Lynagh **20080614165649] [Use -fforce-recomp rather than -no-recomp when building genapply Ian Lynagh **20080614161927] [Get -recomp and -no-recomp the right way round Ian Lynagh **20080614161851] [Fix conversions between Double/Float and simple-integer Ian Lynagh **20080614152337] [Use unified diff Ian Lynagh **20080603172947] [Use -O0 rather than the deprecated -Onot Ian Lynagh **20080614152131] [Handle errors in an OPTIONS pragma when preprocessing Ian Lynagh **20080614145840] [Allow flags to be marked as deprecated Ian Lynagh **20080614144829] [eta-reduce a Monad type synonym, so we can use it non-applied Ian Lynagh **20080614142056] [Use a proper datatype, rather than pairs, for flags Ian Lynagh **20080614133848] [Fix warnings in DriverMkDepend Ian Lynagh **20080614133224] [Fix whitespace in DriverMkDepend Ian Lynagh **20080614132914] [Fix the last warnings in DynFlags Ian Lynagh **20080614125033 We might want to put the values initSysTools finds in their own type, rather than having them flattened into DynFlags ] [Pass dynflags down to loadPackageConfig rather than using defaultDynFlags Ian Lynagh **20080614123427] [Make initSysTools use the dflags it is passed, rather than defaultDynFlags Ian Lynagh **20080614122834] [Remove some unused bindings from HaddockLex Ian Lynagh **20080614122057] [Pass dynflags down through to pragState Ian Lynagh **20080614121156 so we no longer need to use defaultDynFlags there ] [Whitespace only in DynFlags Ian Lynagh **20080614120316] [Define and use is_decdigit for lexing escapes; fixes trac #2304 Ian Lynagh **20080613203553] [Make SysTools warning-free Ian Lynagh **20080612141738] [Remove some CPPery with the help of a new value isWindowsHost in Util Ian Lynagh **20080612002711 isWindowsHost is True iff mingw32_HOST_OS is defined. ] [Remove unused FFI import GetTempPathA (getTempPath) Ian Lynagh **20080612001936] [Whitespace only, in SysTools Ian Lynagh **20080611233129] [Get rid of the last remnants of PROJECT_DIR Ian Lynagh **20080611230433 This disappeared when we stopped being "fptools" and became just "ghc" ] [Tell the testsuite how many threads we want it to use when validating Ian Lynagh **20080611155456] [Fix warnings in LexCore Ian Lynagh **20080610125317] [Fix warnings in Ctype Ian Lynagh **20080610124223] [Fix warnings in TcPat Ian Lynagh **20080610123343] [Fix warnings in TcEnv Ian Lynagh **20080610121819] [Fix warnings in TcRnTypes Ian Lynagh **20080606234704] [Fix warnings in TcTyClsDecls Ian Lynagh **20080606213239] [Fix warnings in TcHsType Ian Lynagh **20080606204854] [Fix warnings in TcSimplify Ian Lynagh **20080606202435] [Fix warnings in TcRules Ian Lynagh **20080606200800] [Fix warnings in TcInstDcls Ian Lynagh **20080606200534] [Fix warnings in TcMType Ian Lynagh **20080606194931] [Fix warnings in TcForeign Ian Lynagh **20080606192610] [Fix warnings in TcClassDcl Ian Lynagh **20080606191413] [Fix a bug in eqPatType Ian Lynagh **20080606184631 One of the conditions we were checking was t2 `eqPatLType` t2 rather than t1 `eqPatLType` t2 ] [Show whether DEBUG is on in ghc --info Ian Lynagh **20080606184415] [Use -fno-toplevel-reorder with gcc >= 4.2 on sparc-solaris; fixes trac #2312 Ian Lynagh **20080606133817] [Teach configure about amd64/NetBSD; fixes trac #2348 Ian Lynagh **20080606130955] [Enable the mangler for netbsd/amd64; fixes trac #2347 Ian Lynagh **20080606130706] [Improve documentation for standalone deriving simonpj@microsoft.com**20080606122459] [Fix Trac #2334: validity checking for type families simonpj@microsoft.com**20080606121730 When we deal with a family-instance declaration (TcTyClsDecls.tcFamInstDecl) we must check the TyCon for validity; for example, that a newtype has exactly one field. That is done all-at-once for normal declarations, and had been forgotten altogether for families. I also refactored the interface to tcFamInstDecl1 slightly. A slightly separate matter: if there's an error in family instances (e.g. overlap) we get a confusing error message cascade if we attempt to deal with 'deriving' clauses too; this patch bales out earlier in that case. Another slightly separate matter: standalone deriving for family instances can legitimately have more specific types, just like normal data decls. For example data instance F [a] = ... deriving instance (Eq a, Eq b) => Eq (F [(a,b)]) So tcLookupFamInstExact can a bit more forgiving than it was. ] [Vital follow-up to fix of Trac #2045 simonpj@microsoft.com**20080605165434 Sorry -- my 'validate' didn't work right and I missed a trick. This patch must accompany * Fix Trac #2045: use big-tuple machiney for implication constraints ] [Fix Trac #2045: use big-tuple machiney for implication constraints simonpj@microsoft.com**20080605145617] [Comments only simonpj@microsoft.com**20080605134743] [Desugar multiple polymorphic bindings more intelligently simonpj@microsoft.com**20080605124423 Occasionally people write very large recursive groups of definitions. In general we desugar these to a single definition that binds tuple, plus lots of tuple selectors. But that code has quadratic size, which can be bad. This patch adds a new case to the desugaring of bindings, for the situation where there are lots of polymorphic variables, but no dictionaries. (Dictionaries force us into the general case.) See Note [Abstracting over tyvars only]. The extra behaviour can be disabled with the (static) flag -fno-ds-multi-tyvar in case we want to experiment with switching it on or off. There is essentially-zero effect on the nofib suite though. I was provoked into doing this by Trac #1136. In fact I'm not sure it's the real cause of the problem there, but it's a good idea anyway. ] [Add non-recursive let-bindings for types simonpj@microsoft.com**20080605123612 This patch adds to Core the ability to say let a = Int in where 'a' is a type variable. That is: a type-let. See Note [Type let] in CoreSyn. * The binding is always non-recursive * The simplifier immediately eliminates it by substitution So in effect a type-let is just a delayed substitution. This is convenient in a couple of places in the desugarer, one existing (see the call to CoreTyn.mkTyBind in DsUtils), and one that's in the next upcoming patch. The first use in the desugarer was previously encoded as (/\a. ) Int rather that eagerly substituting, but that was horrid because Core Lint had do "know" that a=Int inside else it would bleat. Expressing it directly as a 'let' seems much nicer. ] [Fix Trac #2339: reify (mkName "X") simonpj@microsoft.com**20080604150207] [Fix Trac #2310: result type signatures are not supported any more simonpj@microsoft.com**20080604145115 We have not supported "result type signatures" for some time, but using one in the wrong way caused a crash. This patch tidies it up. ] [Sort modules and packages in debug print (reduce test wobbles) simonpj@microsoft.com**20080604144049 This affects only the debug print TcRnDriver.pprTcGblEnv, and eliminates test-suite wobbling (affected me for tc168, tc231) ] [Fix #2334: tyvar binders can have Names inside (equality predicates) Simon Marlow **20080604113002] [fix pointer tagging bug in removeIndirections (fixes stableptr003) Simon Marlow **20080604105458] [Fix unreg build Simon Marlow **20080604093653] [MacOS installer: don't quote XCODE_EXTRA_CONFIGURE_ARGS Manuel M T Chakravarty **20080604021321] [MacOS installer: terminate build on intermediate failure Manuel M T Chakravarty **20080604020155] [tiny tweak to the stack squeezing heuristic (fixes cg060) Simon Marlow **20080604091244] [Fix Trac #2331 (error message suggestion) simonpj@microsoft.com**20080603134645] [Improve documentation of RULES simonpj@microsoft.com**20080530155137] [Improve documentation for INLINE pragma simonpj@microsoft.com**20080530133307] [Shorten debug messages simonpj@microsoft.com**20080603121208] [Fix minor layout issue (whitespace only) simonpj@microsoft.com**20080602130611] [add debugDumpTcRn and use it for some debugging output Simon Marlow **20080603112030] [Turn "NOTE: Simplifier still going..." message into a WARN() Simon Marlow **20080603105431] [remove the "expanding to size" messages Simon Marlow **20080603094546] [MacOS installer: clean up Xcode project spec Manuel M T Chakravarty **20080602070705] [New flag: -dno-debug-output Simon Marlow **20080603082924 From the docs: Suppress any unsolicited debugging output. When GHC has been built with the DEBUG option it occasionally emits debug output of interest to developers. The extra output can confuse the testing framework and cause bogus test failures, so this flag is provided to turn it off. ] [-no-link-chk has been a no-op since at least 6.0; remove it Simon Marlow **20080603082041] [-no-link-chk is a relic Simon Marlow **20080603081904] [Fix validate: -Werror bug in patch "Replacing copyins and copyouts..." Simon Marlow **20080602144945] [Missing import in C-- parser dias@eecs.harvard.edu**20080602103156] [TAG 2008-06-01 Ian Lynagh **20080601155241] [Replacing copyins and copyouts with data-movement instructions dias@eecs.harvard.edu**20080529160545 o Moved BlockId stuff to a new file to avoid module recursion o Defined stack areas for parameter-passing locations and spill slots o Part way through replacing copy in and copy out nodes - added movement instructions for stack pointer - added movement instructions for call and return parameters (but not with the proper calling conventions) o Inserting spills and reloads for proc points is now procpoint-aware (it was relying on the presence of a CopyIn node as a proxy for procpoint knowledge) o Changed ZipDataflow to expect AGraphs (instead of being polymorphic in the type of graph) ] [FIX #2231: add missing stack check when applying a PAP Simon Marlow **20080602143726 This program makes a PAP with 203 arguments :-) ] [-fforce-recomp should be unnecessary for Main.hs in stage[23] now Simon Marlow **20080602133801] [Fix a bug to do with recursive modules in one-shot mode Simon Marlow **20080530145349 The problem was that when loading interface files in checkOldIface, we were not passing the If monad the mutable variable for use when looking up entities in the *current* module, with the result that the knots wouldn't be tied properly, and some instances of TyCons would be incorrectly abstract. This bug has subtle effects: for example, recompiling a module without making any changes might lead to a slightly different result (noticed due to the new interface-file fingerprints). The bug doesn't lead to any direct failures that we're aware of. ] [disable SAT for now (see #2321) Simon Marlow **20080530112043] [Add dph packages to build system Roman Leshchinskiy **20080530050340] [PackageMaker target depends on deployment target Manuel M T Chakravarty **20080529041820] [hs_add_root: use use rts_lock()/rts_unlock() for a bit of extra safety Simon Marlow **20080529111023] [Make it less fatal to not call ioManagerStart() Simon Marlow **20080529110957 For clients that forget to do hs_add_root() ] [Cmm back end upgrades dias@eecs.harvard.edu**20080529094827 Several changes in this patch, partially bug fixes, partially new code: o bug fixes in ZipDataflow - added some checks to verify that facts converge - removed some erroneous checks of convergence on entry nodes - added some missing applications of transfer functions o changed dataflow clients to use ZipDataflow, making ZipDataflow0 obsolete o eliminated DFA monad (no need for separate analysis and rewriting monads with ZipDataflow) o started stack layout changes - no longer generating CopyIn and CopyOut nodes (not yet fully expunged though) - still not using proper calling conventions o simple new optimizations: - common block elimination -- have not yet tried to move the Adams opt out of CmmProcPointZ - block concatenation o piped optimization fuel up to the HscEnv - can be limited by a command-line flag - not tested, and probably not yet properly used by clients o added unique supply to FuelMonad, also lifted unique supply to DFMonad ] [FIX BUILD with GHC 6.4.x Simon Marlow **20080529132544] [make framework-pkg needs to cope with missing DSTROOT Manuel M T Chakravarty **20080527113007] [when linking, ignore unknown .reloc section that appeared in gcc 3.4.5(?) dias@eecs.harvard.edu**20080528121450] [TAG 2008-05-28 Ian Lynagh **20080528003600] [FIX #1970: ghci -hide-all-packages should work Simon Marlow **20080528154528] [Use MD5 checksums for recompilation checking (fixes #1372, #1959) Simon Marlow **20080528125258 This is a much more robust way to do recompilation checking. The idea is to create a fingerprint of the ABI of an interface, and track dependencies by recording the fingerprints of ABIs that a module depends on. If any of those ABIs have changed, then we need to recompile. In bug #1372 we weren't recording dependencies on package modules, this patch fixes that by recording fingerprints of package modules that we depend on. Within a package there is still fine-grained recompilation avoidance as before. We currently use MD5 for fingerprints, being a good compromise between efficiency and security. We're not worried about attackers, but we are worried about accidental collisions. All the MD5 sums do make interface files a bit bigger, but compile times on the whole are about the same as before. Recompilation avoidance should be a bit more accurate than in 6.8.2 due to fixing #1959, especially when using -O. ] [don't make -ddump-if-trace imply -no-recomp Simon Marlow **20080523140719] [Simplify specifying that some libraries need to use the build.* rules Ian Lynagh **20080526160218 Now you just add them to SUBDIRS_BUILD instead of SUBDIRS. ] [Cope with libraries in libraries/foo/bar rather than just libraries/foo Ian Lynagh **20080526135612 You need to use the build.* rules rather than the make.* rules, though. ] [Fix fwrite$UNIX2003 symbols when cross-compiling for Tiger Manuel M T Chakravarty **20080526073546 - When compiling with -mmacos-deployment-target=10.4, we need --no-builtin-fprintf, as the use of GCC's builtin function optimisation for fprintf together with #include "PosixSource" in the RTS leads to the use of fwrite$UNIX2003 (with GCC 4.0.1 on Mac OS X 10.5.2). ] [document :source command for GHCi, point to Haskell wiki claus.reinke@talk21.com**20080501205252 as discussed in this thread: http://www.haskell.org/pipermail/glasgow-haskell-users/2008-April/014614.html ] [Do some stack fiddling in stg_unblockAsyncExceptionszh_ret Ian Lynagh **20080523032508 This fixes a segfault in #1657 ] [Fix warnings in TcTyDecls Ian Lynagh **20080521004251] [Fix whitespace in TcTyDecls Ian Lynagh **20080521003935] [clarify that unsafeCoerce# :: Float# -> Int# is not safe (see #2209) Simon Marlow **20080527090244] [Ensure runhaskell is rebuild in stage2 Manuel M T Chakravarty **20080522044900] [Fix Trac #1061: refactor handling of default methods simonpj@microsoft.com**20080521130028 In an instance declaration, omitted methods get a definition that uses the default method. We used to generate source code and feed it to the type checker. But tc199 shows that is a bad idea -- see Note [Default methods in instances] in TcClassDcl. So this patch refactors to insteadl all us to generate the *post* typechecked code directly for default methods. ] [Comment typo simonpj@microsoft.com**20080521130016] [Fix Trac #2292: improve error message for lone signatures simonpj@microsoft.com**20080520143048 Refactoring reduces code and improves error messages ] [Fix Trac #2293: improve error reporting for duplicate declarations simonpj@microsoft.com**20080520143006] [Tuples cannot contain unboxed types simonpj@microsoft.com**20080515115332 This bug allowed, for example f = let x = ( 1#, 'x' ) in x which is ill-typed because you can't put an unboxed value in a tuple. Core Lint fails on this program. The patch makes the program be rejcted up-front. ] [Make TcType warning-free Ian Lynagh **20080520214852] [Teach push-all how to send as well Ian Lynagh **20080517142112] [Make TcUnify warning-free Ian Lynagh **20080519111100] [Fix a comment typo Ian Lynagh **20080519094126] [Detab TcUnify Ian Lynagh **20080519094056] [FIX #1955: confusion between .exe.hp and .hp suffixes for heap profiles Simon Marlow **20080519125101 Now we use .hp and .prof consistently. ] [sort the output of :show packages Simon Marlow **20080520084221] [Add -Odph Roman Leshchinskiy **20080520031913 This is the optimisation level recommended when compiling DPH programs. At the moment, it is equivalent to -O2 -fno-method-sharing -fdicts-cheap -fmax-simplifier-iterations20 -fno-spec-constr-threshold. ] [Make -f[no-]method-sharing a dynamic flag Roman Leshchinskiy **20080520025956 We want -Odph to be a dynamic flag and that should imply -fno-method-sharing. This doesn't add a lot of complexity. ] [documentation for ZipDataflow Norman Ramsey **20080520032454] [Make TcBinds warning-free Ian Lynagh **20080518133140] [Detab TcBinds Ian Lynagh **20080518125606] [Move the register-inplace special-case stuff into the ghc-prim package Ian Lynagh **20080517002224] [Libraries Makefile Hack for ndp Ian Lynagh **20080516235818 We use the "build" rather than "make" target ] [When building libraries, we need to register them if we use the "build" targets Ian Lynagh **20080516235352 We currently only use the "make" targets, which already register the package. ] [Add dummy LICENSE file to make Cabal go through Tim Chevalier **20080517025351 Add a LICENSE file that just points to the GHC license. ] [Improve the treatment of 'seq' (Trac #2273) simonpj@microsoft.com**20080516085149 Trac #2273 showed a case in which 'seq' didn't cure the space leak it was supposed to. This patch does two things to help a) It removes a now-redundant special case in Simplify, which switched off the case-binder-swap in the early stages. This isn't necessary any more because FloatOut has improved since the Simplify code was written. And switching off the binder-swap is harmful for seq. However fix (a) is a bit fragile, so I did (b) too: b) Desugar 'seq' specially. See Note [Desugaring seq (2)] in DsUtils This isn't very robust either, since it's defeated by abstraction, but that's not something GHC can fix; the programmer should use a let! instead. ] [don't rebuild PrimEnv if genprimopcode and/or primops.txt don't exist Tim Chevalier **20080515230405 This helps if, for example, you want to build the Core tools on a machine that doesn't have a GHC build tree, and have a pre-existing copy of PrimEnv.hs. ] [Fix a division-by-zero when +RTS -V0 is given Ian Lynagh **20080426184355 In delayzh_fast we act as if tickInterval was 50, not 0. ] [update the "perf" settings to match the default Simon Marlow **20080520080535] [use -O2 for libraries and stage2 compiler by default Simon Marlow **20080520080525] [bump GHC's maximum stack size to 64Mb (see #2002) Simon Marlow **20080519125333] [FIX #2257: timer_settime() hangs during configure Simon Marlow **20080516130045 On a 2.6.24 Linux kernel, it appears that timer_settime() for CLOCK_REALTIME is sometimes hanging for a random amount of time when given a very small interval (we were using 1ns). Using 1ms seems to be fine. Also I installed a 1-second timeout to catch hangs in the future. ] [validate fix: eliminate a warning Simon Marlow **20080516095947] [validate fix: eliminate a warning on non-Windows Simon Marlow **20080515142518] [Cabalize ext-core tools Tim Chevalier **20080514235341 I cabalized the ext-core tools, so now they can be built as a library. The driver program has to be built separately. Also updated genprimopcode to reflect the new module hierarchy for the Core tools. ] [Remove Distribution.Compat.Char from compat again Ian Lynagh **20080514125152 Cabal now does this differently. ] [Fix an assertion Ian Lynagh **20080426110115 We were checking that a pointer was correctly tagged, but after we had untagged it. ] [Fix sin/cos/tan on x86; trac #2059 Ian Lynagh **20080503000841 If the value is > 2^63 then we need to work out its value mod 2pi, and apply the operation to that instead. ] [FIX #1288: GHCi wasn't adding the @n suffix to stdcalls on Windows Simon Marlow **20080514092742] [FIX #2276: foreign import stdcall "&foo" doesn't work Simon Marlow **20080514082422 This turned out not to be too hard, just a matter of figuring out the correct argument list size by peeking inside FunPtr's type argument, and in the C backend we have to emit an appropriate prototype for the label. ] [Use -fffi when compiling Cabal stuff with the bootstrapping compiler Ian Lynagh **20080513211128] [Use zipLazy from Util in VectType, rather than defining our own lazy_zip Ian Lynagh **20080513202154] [Add a type signature to help GHC 6.4 Ian Lynagh **20080513200641 Needed in lieu of -XRelaxedPolyRec ] [Rewrite zipLazy to be warning-free for GHC 6.4 Ian Lynagh **20080513193901] [Add Distribution.Compat.Char to compat Ian Lynagh **20080513192243] [Add Distribution.Compat.Exception to the compat library Ian Lynagh **20080513190022] [Fix spelling of nonexistEnt Ian Lynagh **20080513135158] [FIX #2014: Template Haskell w/ mutually recursive modules Simon Marlow **20080515134515 Try to load interfaces in getLinkDeps ] [Document ghc-pkg find-module, substring matching, and multi-field selection claus.reinke@talk21.com**20080501152700 Documentation and examples taken from - ghc-pkg/Main.hs usageHeader - patch: FIX 1463 (implement 'ghc-pkg find-module') - patch: FIX #1839, #1463, by supporting ghc-pkg bulk queries with substring matching ] [Fix the Windows build; the new Cabal doesn't like --prefix=/foo Ian Lynagh **20080512170507] [Pull the configure options out into a variable in libraries/Makefile Ian Lynagh **20080511203932] [typo in rules example. spotted by vixey@#haskell Don Stewart **20080512182435] [FIX #1641: don't add auto sccs to compiler-generated bindings Simon Marlow **20080513084400 I also changed con2tag_Foo and related names to follow the standard practice of prefixing $ to compiler-generated names, so now we have $con2tag_Foo. ] [Fixes to via-C prototype generation (FIX BUILD on Windows) Simon Marlow **20080512110643 Previously we declared all external labels with type StgWord[], because the same label might be used at different types in the same file, e.g. if there are multiple foreign import declarations for the same function. However, we have to declare called functions with the right type on Windows, because this is the only way to make the compiler add the appropriate '@n' suffix for stdcall functions. Related to this is the reason we were getting mangler complaints (epilogue mangling) when compiling the RTS with -fvia-C. The function barf() doesn't return, but we had lost that information by declaring our own prototypes, and so gcc was generating extra code after the call to barf(). For more details see http://hackage.haskell.org/trac/ghc/wiki/Commentary/Compiler/Backends/PprC ] [doc tweak Simon Marlow **20080512104030] [FIX #2234: don't generate .prof unless we're going to put something in it Simon Marlow **20080512104020] [FIX #1861: floating-point constants for infinity and NaN in via-C Simon Marlow **20080512103847] [Tell the mangler how to mangle for amd64/freebsd; fixes trac #2072 Ian Lynagh **20080511182011] [Follow distPref changes in Cabal Ian Lynagh **20080511144539] [Follow Cabal changes in ghci/Linker Ian Lynagh **20080511005253] [Follow changes in Cabal Ian Lynagh **20080510225552] [Remove redundant imports from Inst Ian Lynagh **20080510220452] [Fix a warning when DEBUG is not on Ian Lynagh **20080510220329] [Update compat for changes to Cabal Ian Lynagh **20080510211901] [Update ghc-pkg to follow Cabal changes Ian Lynagh **20080510211035] [Make TcGenDeriv warning-free Ian Lynagh **20080506210858] [Make TcMatches warning-free Ian Lynagh **20080506204254] [Make TcHsSyn warning-free Ian Lynagh **20080506201829] [Make TcRnMonad warning-free Ian Lynagh **20080506193359] [Make TcDefaults warning-free Ian Lynagh **20080506191728] [Make TcArrows warning-free Ian Lynagh **20080506191141] [TcSplice is now mostly warning-free Ian Lynagh **20080506180618 There are some unused things, but I am not sure if the intention is that they will be used in the future. Names implied they were related to splicing in patterns and types. ] [Make Inst warning-free Ian Lynagh **20080506173842] [Add a panic for lookupPred EqPred Ian Lynagh **20080506171749 It's possible that returning Nothing was the right thing to do here, but the comment and variable name indicated that it was written for implicit parameters, so make it a panic for now just in case. ] [Make FamInst warning-free Ian Lynagh **20080506171031] [Fix context for fwd_pure_anal to match that of forward_sol simonpj@microsoft.com**20080507072825] [FIX validate: Fix warnings in new literal code Roman Leshchinskiy **20080507035417 Validate uses -Werror so the warnings broke it. ] [Vectorise even with -O0 Roman Leshchinskiy **20080507020055] [Remove ilxGen; part of trac #2243 Ian Lynagh **20080506104456] [Remove javaGen; part of trac #2243 Ian Lynagh **20080506104307] [Add a comment about why DsMeta needs the warning kludge Ian Lynagh **20080506103506] [Fix Trac #2246; overhaul handling of overloaded literals simonpj@microsoft.com**20080506102551 The real work of fixing Trac #2246 is to use shortCutLit in MatchLit.dsOverLit, so that type information discovered late in the day by the type checker can still be exploited during desugaring. However, as usual I found myself doing some refactoring along the way, to tidy up the handling of overloaded literals. The main change is to split HsOverLit into a record, which in turn uses a sum type for the three variants. This makes the code significantly more modular. data HsOverLit id = OverLit { ol_val :: OverLitVal, ol_rebindable :: Bool, -- True <=> rebindable syntax -- False <=> standard syntax ol_witness :: SyntaxExpr id, -- Note [Overloaded literal witnesses] ol_type :: PostTcType } data OverLitVal = HsIntegral !Integer -- Integer-looking literals; | HsFractional !Rational -- Frac-looking literals | HsIsString !FastString -- String-looking literals ] [Fix type signature to work without -XRelaxedPolyRec, and hence earlier GHCs simonpj@microsoft.com**20080506095817] [Eliminate a warning for compiler/basicTypes/OccName.lhs Thorkil Naur **20080504191511] [External Core tools: add note to README about where to find documentation Tim Chevalier **20080505004603] [Some External Core doc fixes Tim Chevalier **20080505003955] [External Core tools: track new syntax for newtypes Tim Chevalier **20080505001050 Update External Core tools to reflect new syntax for newtypes. (Notice that the typechecker is 90 lines shorter!) Also: improve dependency-finding, miscellaneous refactoring. ] [Improve External Core newtype syntax Tim Chevalier **20080504230233 I realized that recursive newtypes no longer have to be distinguished in the External Core AST, because explicit coercions allow the typechecker to typecheck newtypes without ever expanding newtypes. So, now all newtypes in External Core have a representation clause. O frabjous day! ] [Remove a duplicate module import in BuildTyCl Ian Lynagh **20080504222023] [Make SimplEnv warning-free Ian Lynagh **20080504213123] [Make SimplUtils warning-free Ian Lynagh **20080504212447] [Remove a hack for GHC 3.03 in SimplMonad Ian Lynagh **20080504205935] [Make SimplMonad warning-free Ian Lynagh **20080504205630] [Make LiberateCase warning-free Ian Lynagh **20080504204729] [Make FloatOut warning-free Ian Lynagh **20080504204058] [Make FloatIn warning-free Ian Lynagh **20080504202538] [Make SetLevels warning-free Ian Lynagh **20080504201710] [Make Vectorise warning-free Ian Lynagh **20080504195430] [Remove some dead code from VectType Ian Lynagh **20080504194432] [Make VectType warning-free Ian Lynagh **20080504194335] [Make IfaceEnv warning-free Ian Lynagh **20080504190944] [Make IfaceSyn warning-free Ian Lynagh **20080504190710] [Make IfaceType warning-free Ian Lynagh **20080504183529] [Make BuildTyCl warning-free Ian Lynagh **20080504182336] [Make BinIface warning-free Ian Lynagh **20080504182031] [Make LoadIface warning-free Ian Lynagh **20080504180847] [Make MkIface warning-free Ian Lynagh **20080504174952] [Make TcIface warning-free Ian Lynagh **20080504172906] [Make StgLint warning-free Ian Lynagh **20080504151343] [Make CoreToStg warning-free Ian Lynagh **20080504145432] [Make DsArrows warning-free Ian Lynagh **20080504140443] [Make DsCCall warning-free Ian Lynagh **20080504132635] [Make DsMeta almost warning-free Ian Lynagh **20080504125742 GHC claims that OccName is unused, but it is wrong. ] [Make MatchLit warning-free Ian Lynagh **20080504114848] [Add an Outputable EquationInfo instance Ian Lynagh **20080504114827] [Whitespace only (TcInstDcls) Ian Lynagh **20080504111101] [Fix the stage 1 build Ian Lynagh **20080504011733] [Remove unused function mapInScopeSet Ian Lynagh **20080503191450] [Make part of the parser a bit stricter Ian Lynagh **20080502225717] [Fix some space-wasting in the Parser Ian Lynagh **20080502225645 (fst x, snd x) => x ] [Make ByteCodeGen warning-free Ian Lynagh **20080504002527] [Tiny code tweak in the definition of io in GhciMonad; no semantic change Ian Lynagh **20080503235211] [Make GhciMonad warning-free Ian Lynagh **20080503235135] [Tiny code recatoring in GhciTags Ian Lynagh **20080503234539] [Make GhciTags warning-free Ian Lynagh **20080503234441] [Make ObjLink warning-free Ian Lynagh **20080503233418] [Remove a hack from a time when ghc couldn't do seq Ian Lynagh **20080503232832] [Make RnExpr warning-free Ian Lynagh **20080503232704] [Make RnEnv warning-free Ian Lynagh **20080503223430] [Fix warnings in RnNames Ian Lynagh **20080503221512] [Make RnBinds warning-free Ian Lynagh **20080503213149] [Change a mappM to mapM_ Ian Lynagh **20080503203354] [Make RnPat warning-free Ian Lynagh **20080503203300] [Make RnHsDoc warning-free Ian Lynagh **20080503201343] [Make RnSource warning-free Ian Lynagh **20080503200932] [Make RnHsSyn warning-free Ian Lynagh **20080503170649] [Whitespace only Ian Lynagh **20080503170053] [Vectorise polymorphic let bindings Roman Leshchinskiy **20080504054006] [Improve syntax for primitive coercions in External Core Tim Chevalier **20080504024304 Add new syntax in External Core for primitive coercions (trans, sym, etc.) rather than wiring their names into the ext-core parser. ] [Fix External Core interpreter Tim Chevalier **20080503231044 The External Core interpreter works (in a limited sense). For details, see the README. This means we now have a marginally functioning set of External Core tools. The other exciting change is that the test driver (Driver.hs) now computes module dependencies automatically instead of having a wired-in list of library modules. ] [replace hints with kinds in parser as well Norman Ramsey **20080503224720] [replace Cmm 'hint' with 'kind' Norman Ramsey **20080503224514 C-- no longer has 'hints'; to guide parameter passing, it has 'kinds'. Renamed type constructor, data constructor, and record fields accordingly ] [new version of ZipDataflow Norman Ramsey **20080503224208 This version combines forward/backard into a type class (actually two classes) of analysis and transformation. These type classes will always be expanded away at the client, so SLPJ may wonder why they exist: it is because the interface to this module is already very broad, and by overloading the functions for forward and backward problems, we cut the cognitive load on the clients in half. ] [minor changes to Cmm left over from September 2007 Norman Ramsey **20080503223452 Nothing too deep here; primarily tinking with prettyprinting and names. Also eliminated some warnings. This patch covers most (but not all) of the code NR changed at the very end of September 2007, just before ICFP hit... ] [Make darcs-all act on all repos in libraries/, not just boot/extra libs Ian Lynagh **20080502174753] [When validating, configure with "--prefix=`pwd`/inst" Ian Lynagh **20080502155649 This means a validate build can be installed locally. `pwd`/inst probably won't give a useful value on all platforms (in particular there are probably some Windows configurations it doesn't work for), but I don't think it will ever make the build fail. ] [Improve the unboxed types documentation Ian Lynagh **20080430152508 Mainly adding descriptions of unboxed literals, ] [sumP on doubles and int keller@cse.unsw.edu.au**20080502031905] [Fixed vect decl for sumP, enumfromToP keller@cse.unsw.edu.au**20080501011824] [Missing .0 on float constant. Don Stewart **20080501000517] [Replace C99 exp2f(32) call in __2Int_encodeDouble Don Stewart **20080430214827 with constant 4294967296. exp2f is a C99-ism not availabl everywhere. Replace it with its result. Helps building on OpenBSD> ] [Use panic rather than error in RegLiveness Ian Lynagh **20080430131349] [Update an error message Ian Lynagh **20080430131317 error "RegisterAlloc.livenessSCCs" -> error "RegLiveness.livenessSCCs" ] [Update a panic message Ian Lynagh **20080430131021 It was (panic "RegisterAlloc.joinToTargets"), but had since moved to RegAllocLinear.makeRegMovementGraph. ] [Remove BitSet, FieldLabel, RegisterAlloc from compiler/package.conf.in Ian Lynagh **20080430130251 The modules no longer exist. Spotted by Marc Weber. ] [Improve documentation of RULES pragmas simonpj@microsoft.com**20080430082431] [change topHandlerFastExit to topHandler, so the terminal state gets restored (#2228) Simon Marlow **20080429222442] [don't turn off stdin/stdout buffering after loading a module with ghc -e (#2228) Simon Marlow **20080429222409] [FIX #1933: use a better test for timer_create() Simon Marlow **20080429212945] [Fix Trac #1969: perfomance bug in the specialiser simonpj@microsoft.com**20080428155711 The specialiser was using a rather brain-dead representation for UsageDetails, with much converting from lists to finite maps and back. This patch does some significant refactoring. It doesn't change the representation altogether, but it does eliminate the to-and-fro nonsense. It validates OK, but it's always possible that I have inadvertently lost specialisation somewhere, so keep an eye out for any run-time performance regressions. Oh, and Specialise is now warning-free too. ] [Fix Trac #2238: do not use newtype for a class with equality predicates simonpj@microsoft.com**20080428134730 See Note [Class newtypes and equality predicates] in this module. ] [Add :list to ghci's :? help; fixes trac #2217 Ian Lynagh **20080427190049] [Fix an error if an SCC name contains a space; fixes trac #2071 Ian Lynagh **20080427114808] [Fix build on PPC: Add some missing parentheses Ian Lynagh **20080427103545] [Refactor some code a bit, and improve an error Ian Lynagh **20080426011634 The "magic number mismatch: old/corrupt interface file?" error now tells us what we got, and what we expected. ] [Whitespace changes only Ian Lynagh **20080426010908] [Fix the ticky ticky build Ian Lynagh **20080425140434 Include TickyCounters.h in Stg.h if we are doing Ticky Ticky. ] [Fix a couple of format strings in Ticky.c Ian Lynagh **20080425134725] [Comment out some unused code in Ticky.c Ian Lynagh **20080425134307] [Spelling fixes in glasgow_exts.xml Samuel Bronson **20080415232626 Also adds a element and replaces an occurance of SGML with XML... ] [Vectorisation of: enumFromTo, div, intSqrt keller@cse.unsw.edu.au**20080425072421] [Fix int64ToInteger 0xFFFFFFFF00000000 on 32bit machine; trac #2223 Ian Lynagh **20080424131526 Patch from Mike Gunter. ] [Add 123## literals for Word# Ian Lynagh **20080423161115] [Whitespace changes only Ian Lynagh **20080423143553] [Added support for vectorising emptyP, squareRoot, combineP keller@cse.unsw.edu.au**20080424020025] [Add back an erroneously removed #include "HsVersions.h" Ian Lynagh **20080423110930] [Include HsVersions.h where necessary Roman Leshchinskiy **20080423042820] [Make a panic slightly more helpful Ian Lynagh **20080422164916] [Fix build Ian Lynagh **20080422133838] [Fix build Ian Lynagh **20080422124919] [(F)SLIT -> (f)sLit in SimplUtils Ian Lynagh **20080422124908] [(F)SLIT -> (f)sLit in HsBinds Ian Lynagh **20080422122319] [(F)SLIT -> (f)sLit in StaticFlags Ian Lynagh **20080422122226] [Build fixes Ian Lynagh **20080422115500] [Change the last few (F)SLIT's into (f)sLit's Ian Lynagh **20080422114713] [FSLIT -> fsLit in PrelNames Ian Lynagh **20080422113907] [Fix warnings in PrelNames Ian Lynagh **20080422113817] [(F)SLIT -> (f)sLit in CmmParse Ian Lynagh **20080422110857] [PrelRules is now warning free Ian Lynagh **20080413124325] [Remove a warning Ian Lynagh **20080413103120] [PrelInfo is now warning-free Ian Lynagh **20080413102906] [TysPrim is now warning-free Ian Lynagh **20080413101757] [TysWiredIn is now warning-free Ian Lynagh **20080413094012] [(F)SLIT -> (f)sLit in TcSplice Ian Lynagh **20080412180126] [(F)SLIT -> (f)sLit in Convert Ian Lynagh **20080412180037] [(F)SLIT -> (f)sLit in InteractiveUI Ian Lynagh **20080412180018] [(F)SLIT -> (f)sLit in InteractiveEval Ian Lynagh **20080412175850] [(F)SLIT -> (f)sLit in RtClosureInspect Ian Lynagh **20080412175734] [(F)SLIT -> (f)sLit in Linker Ian Lynagh **20080412175700] [(F)SLIT -> (f)sLit in ByteCodeGen Ian Lynagh **20080412175456] [(F)SLIT -> (f)sLit in DsMeta Ian Lynagh **20080412175407] [(F)SLIT -> (f)sLit in PprTyThing Ian Lynagh **20080412163811] [(F)SLIT -> (f)sLit in DriverMkDepend Ian Lynagh **20080412163724] [(F)SLIT -> (f)sLit in GHC Ian Lynagh **20080412163604] [(F)SLIT -> (f)sLit in DriverPipeline Ian Lynagh **20080412163406] [(F)SLIT -> (f)sLit in HscMain Ian Lynagh **20080412163320] [(F)SLIT -> (f)sLit in TcRnDriver Ian Lynagh **20080412162930] [(F)SLIT -> (f)sLit in TcDefaults Ian Lynagh **20080412162824] [(F)SLIT -> (f)sLit in TcRules Ian Lynagh **20080412162705] [(F)SLIT -> (f)sLit in TcForeign Ian Lynagh **20080412162632] [(F)SLIT -> (f)sLit in TcExpr Ian Lynagh **20080412162533] [(F)SLIT -> (f)sLit in TcArrows Ian Lynagh **20080412162403] [(F)SLIT -> (f)sLit in TcMatches Ian Lynagh **20080412162314] [(F)SLIT -> (f)sLit in TcInstDcls Ian Lynagh **20080412162152] [(F)SLIT -> (f)sLit in FamInst Ian Lynagh **20080412162033] [(F)SLIT -> (f)sLit in TcDeriv Ian Lynagh **20080412161958] [(F)SLIT -> (f)sLit in TcGenDeriv Ian Lynagh **20080412161827] [(F)SLIT -> (f)sLit in TcTyClsDecls Ian Lynagh **20080412161708] [(F)SLIT -> (f)sLit in TcClassDcl Ian Lynagh **20080412161517] [(F)SLIT -> (f)sLit in RnExpr Ian Lynagh **20080412161410] [(F)SLIT -> (f)sLit in TcBinds Ian Lynagh **20080412161320] [(F)SLIT -> (f)sLit in TcHsType Ian Lynagh **20080412161045] [(F)SLIT -> (f)sLit in Generics Ian Lynagh **20080412160944] [(F)SLIT -> (f)sLit in TcSimplify Ian Lynagh **20080412160715] [(F)SLIT -> (f)sLit in TcTyFuns Ian Lynagh **20080412160559] [(F)SLIT -> (f)sLit in Inst Ian Lynagh **20080412160453] [(F)SLIT -> (f)sLit in RnSource Ian Lynagh **20080412160348] [(F)SLIT -> (f)sLit in RnBinds Ian Lynagh **20080412160232] [(F)SLIT -> (f)sLit in RnPat Ian Lynagh **20080412160138] [(F)SLIT -> (f)sLit in RnTypes Ian Lynagh **20080412160039] [(F)SLIT -> (f)sLit in RnNames Ian Lynagh **20080412155923] [(F)SLIT -> (f)sLit in RnEnv Ian Lynagh **20080412155810] [(F)SLIT -> (f)sLit in TcEnv Ian Lynagh **20080412155639] [(F)SLIT -> (f)sLit in CSE Ian Lynagh **20080412155551] [(F)SLIT -> (f)sLit in Simplify Ian Lynagh **20080412155517] [(F)SLIT -> (f)sLit in SimplEnv Ian Lynagh **20080412155311] [(F)SLIT -> (f)sLit in FloatOut Ian Lynagh **20080412155114] [(F)SLIT -> (f)sLit in Specialse Ian Lynagh **20080412155034] [(F)SLIT -> (f)sLit in SpecConstr Ian Lynagh **20080412154959] [(F)SLIT -> (f)sLit in Vectorise Ian Lynagh **20080412154718] [(F)SLIT -> (f)sLit in VectType Ian Lynagh **20080412154322] [(F)SLIT -> (f)sLit in VectUtils Ian Lynagh **20080412154229] [(F)SLIT -> (f)sLit in VectMonad Ian Lynagh **20080412154116] [(F)SLIT -> (f)sLit in VectBuiltIn Ian Lynagh **20080412154002] [(F)SLIT -> (f)sLit in SimplMonad Ian Lynagh **20080412153630] [(F)SLIT -> (f)sLit in CoreToStg Ian Lynagh **20080412153543] [(F)SLIT -> (f)sLit in StgLint Ian Lynagh **20080412153440] [(F)SLIT -> (f)sLit in Parser Ian Lynagh **20080412153329] [(F)SLIT -> (f)sLit in RdrHsSyn Ian Lynagh **20080412153052] [(F)SLIT -> (f)sLit in SysTools Ian Lynagh **20080412152909] [(F)SLIT -> (f)sLit in MachCodeGen Ian Lynagh **20080412152750] [(F)SLIT -> (f)sLit in PositionIndependentCode Ian Lynagh **20080412152545] [(F)SLIT -> (f)sLit in RegallocLinear Ian Lynagh **20080412152355] [(F)SLIT -> (f)sLit in RegLiveness Ian Lynagh **20080412152307] [(F)SLIT -> (f)sLit in PprMach Ian Lynagh **20080412152217] [(F)SLIT -> (f)sLit in Desugar Ian Lynagh **20080412151250] [(F)SLIT -> (f)sLit in MkIface Ian Lynagh **20080412151147] [(F)SLIT -> (f)sLit in DsForeign Ian Lynagh **20080412150848] [(F)SLIT -> (f)sLit in Match Ian Lynagh **20080412150644] [(F)SLIT -> (f)sLit in DsBinds Ian Lynagh **20080412150510] [(F)SLIT -> (f)sLit in Coverage Ian Lynagh **20080412150416] [(F)SLIT -> (f)sLit in DsUtils Ian Lynagh **20080412150317] [(F)SLIT -> (f)sLit in DsUtils Ian Lynagh **20080412150231] [(F)SLIT -> (f)sLit in TcHsSyn Ian Lynagh **20080412145639] [(F)SLIT -> (f)sLit in FunDeps Ian Lynagh **20080412145238] [(F)SLIT -> (f)sLit in DsMonad Ian Lynagh **20080412145201] [(F)SLIT -> (f)sLit in TcIface Ian Lynagh **20080412145105] [(F)SLIT -> (f)sLit in LoadIface Ian Lynagh **20080412145018] [(F)SLIT -> (f)sLit in Finder Ian Lynagh **20080412144812] [(F)SLIT -> (f)sLit in TcRnMonad Ian Lynagh **20080412144557] [(F)SLIT -> (f)sLit in TcRnTypes Ian Lynagh **20080412144504] [(F)SLIT -> (f)sLit in WwLib Ian Lynagh **20080412144123] [(F)SLIT -> (f)sLit in CoreSubst Ian Lynagh **20080412143851] [(F)SLIT -> (f)sLit in CorePrep Ian Lynagh **20080412143637] [(F)SLIT -> (f)sLit in CgCon Ian Lynagh **20080412143540] [(F)SLIT -> (f)sLit in HscTypes Ian Lynagh **20080412143353] [(F)SLIT -> (f)sLit in FamInstEnv Ian Lynagh **20080412141122] [(F)SLIT -> (f)sLit in InstEnv Ian Lynagh **20080412141045] [(F)SLIT -> (f)sLit in CgPrimOp Ian Lynagh **20080412140741] [(F)SLIT -> (f)sLit in PprC Ian Lynagh **20080412140630] [(F)SLIT -> (f)sLit in CgForeignCall Ian Lynagh **20080412140213] [(F)SLIT -> (f)sLit in CgClosure Ian Lynagh **20080412140136] [(F)SLIT -> (f)sLit in PprCmmZ Ian Lynagh **20080412135934] [(F)SLIT -> (f)sLit in ZipCfgCmmRep Ian Lynagh **20080412135902] [(F)SLIT -> (f)sLit in CmmLint Ian Lynagh **20080412135820] [(F)SLIT -> (f)sLit in CmmCPSGen Ian Lynagh **20080412135728] [(F)SLIT -> (f)sLit in CgBindery Ian Lynagh **20080412135620] [(F)SLIT -> (f)sLit in CgHeapery Ian Lynagh **20080412135529] [(F)SLIT -> (f)sLit in CgTicky Ian Lynagh **20080412135411] [(F)SLIT -> (f)sLit in CgCallConv Ian Lynagh **20080412135037] [(F)SLIT -> (f)sLit in CgProf Ian Lynagh **20080412133935] [(F)SLIT -> (f)sLit in PprCmm Ian Lynagh **20080412133323] [(F)SLIT -> (f)sLit in ClosureInfo Ian Lynagh **20080412133030] [(F)SLIT -> (f)sLit in StSyn Ian Lynagh **20080412132924] [(F)SLIT -> (f)sLit in SMRep Ian Lynagh **20080412132534] [(F)SLIT -> (f)sLit in MachOp Ian Lynagh **20080412132430] [(F)SLIT -> (f)sLit in CLabel Ian Lynagh **20080412132305] [(F)SLIT -> (f)sLit in Packages Ian Lynagh **20080412132158] [(F)SLIT -> (f)sLit in Lexer Ian Lynagh **20080412132044] [(F)SLIT -> (f)sLit in MkId Ian Lynagh **20080412131831] [(F)SLIT -> (f)sLit in Rules Ian Lynagh **20080412131707] [(F)SLIT -> (f)sLit in PrelRules Ian Lynagh **20080412131612] [(F)SLIT -> (f)sLit in HsSyn Ian Lynagh **20080412130737] [(F)SLIT -> (f)sLit in HsUtils Ian Lynagh **20080412125320] [(F)SLIT -> (f)sLit in HsExpr Ian Lynagh **20080412125229] [(F)SLIT -> (f)sLit in HsDecls Ian Lynagh **20080412124928] [(F)SLIT -> (f)sLit in HsImpExp Ian Lynagh **20080412124840] [(F)SLIT -> (f)sLit in HsPat Ian Lynagh **20080412124758] [(F)SLIT -> (f)sLit in HsTypes Ian Lynagh **20080412124645] [(F)SLIT -> (f)sLit in IfaceSyn Ian Lynagh **20080412124607] [(F)SLIT -> (f)sLit in IfaceType Ian Lynagh **20080412124507] [(F)SLIT -> (f)sLit in CoreUnfold Ian Lynagh **20080412124420] [(F)SLIT -> (f)sLit in CoreLint Ian Lynagh **20080412124339] [(F)SLIT -> (f)sLit in CoreUtils Ian Lynagh **20080412124218] [(F)SLIT -> (f)sLit in PprCore Ian Lynagh **20080412124141] [(F)SLIT -> (f)sLit in Id Ian Lynagh **20080412123952] [(F)SLIT -> (f)sLit in TcType Ian Lynagh **20080412123745] [(F)SLIT -> (f)sLit in IdInfo Ian Lynagh **20080412123637] [(F)SLIT -> (f)sLit in CoreSyn Ian Lynagh **20080412123507] [(F)SLIT -> (f)sLit in CostCentre Ian Lynagh **20080412123402] [(F)SLIT -> (f)sLit in Literal Ian Lynagh **20080412123322] [Generate fsLit not FSLIT in genprimopcode Ian Lynagh **20080412123247] [(F)SLIT -> (f)sLit in TysWiredIn Ian Lynagh **20080412122946] [(F)SLIT -> (f)sLit in TysPrim Ian Lynagh **20080412122846] [(F)SLIT -> (f)sLit in ForeignCall Ian Lynagh **20080412122757] [(F)SLIT -> (f)sLit in DataCon Ian Lynagh **20080412122709] [(F)SLIT -> (f)sLit in Coercion Ian Lynagh **20080412122627] [(F)SLIT -> (f)sLit in Type Ian Lynagh **20080412122524] [(F)SLIT -> (f)sLit in TypeRep Ian Lynagh **20080412122409] [(F)SLIT -> (f)sLit in VarEnv Ian Lynagh **20080412121437] [(F)SLIT -> (f)sLit in Class Ian Lynagh **20080412121245] [(F)SLIT -> (f)sLit in Class Ian Lynagh **20080412121211] [(F)SLIT -> (f)sLit in Var Ian Lynagh **20080412121140] [(F)SLIT -> (f)sLit in Name Ian Lynagh **20080412121050] [(F)SLIT -> (f)sLit in OccName Ian Lynagh **20080412121008] [(F)SLIT -> (f)sLit in SrcLoc Ian Lynagh **20080412120909] [(F)SLIT -> (f)sLit in Module Ian Lynagh **20080412120817] [(F)SLIT -> (f)sLit in BasicTypes Ian Lynagh **20080412120745] [(F)SLIT -> (f)sLit in Outputable Ian Lynagh **20080412120538] [SLIT -> sLit in Prety.lhs Ian Lynagh **20080412120004] [Don't use CPP for SLIT/FSLIT Ian Lynagh **20080412115745] [Simplify SimplCont, plus some other small changes to the Simplifier simonpj@microsoft.com**20080422120400 The main change in this patch is this: * The Stop constructor of SimplCont no longer contains the OutType of the whole continuation. This is a nice simplification in lots of places where we build a Stop continuation. For example, rebuildCall no longer needs to maintain the type of the function. * Similarly StrictArg no longer needs an OutType * The consequential complication is that contResultType (not called much) needs to be given the type of the thing in the middle. No big deal. * Lots of other small knock-on effects Other changes in here * simplLazyBind does do the type-abstraction thing if there's a lambda inside. See comments in simplLazyBind * simplLazyBind reduces simplifier iterations by keeping unfolding information for stuff for which type abstraction is done (see add_poly_bind) All of this came up when implementing System IF, but seems worth applying to the HEAD ] [Comments only in SimplCore simonpj@microsoft.com**20080422120304] [Comments only simonpj@microsoft.com**20080422120143] [Minor bug in SpecConstr simonpj@microsoft.com**20080422115238 In SpecConstr.isValue, we recorded a ConVal for a big-lambda, which seems wrong. I came across this when implementing System IF. The code now reads: isValue env (Lam b e) | isTyVar b = case isValue env e of Just _ -> Just LambdaVal -- NB! Nothing -> Nothing | otherwise = Just LambdaVal ] [Comments only simonpj@microsoft.com**20080422115221] [Fix a long-standing bug in FloatOut simonpj@microsoft.com**20080422115003 We really should not float anything out of an _inline_me_ Note, for reasons described in this new comment: -- Do no floating at all inside INLINE. -- The SetLevels pass did not clone the bindings, so it's -- unsafe to do any floating, even if we dump the results -- inside the Note (which is what we used to do). I'm about to get rid of these _inline_me_ Notes, but it's better to fix it anyway. I found this bug when implementing System IF. ] [Remove static flag opt_RuntimeTypes (has not been used in years) simonpj@microsoft.com**20080422114848] [Refactor the TyVarTy case of 'match'. No change in behaviour. simonpj@microsoft.com**20080422113014] [Add Note [Generating the in-scope set for a substitution] simonpj@microsoft.com**20080422112925] [Rename WpCo to WpCast simonpj@microsoft.com**20080422112804] [Fix #2044 (:printing impredicatively typed things) pepe **20080421171322 Switching to boxyUnify should be enough to fix this. ] [Improve External Core syntax for newtypes Tim Chevalier **20080422045244 I was confused by the newtype eta-contraction trick before. Newtype declarations are much less redundant now. ] [Update External Core docs Tim Chevalier **20080422044342 Update documentation to reflect GHC HEAD. ] [External Core typechecker - improve handling of coercions Tim Chevalier **20080422015622 Reorganized coercion-related code in the typechecker (this was brought about by typechecking the Core versions of the optimized GHC libraries.) A few miscellaneous changes (fixed a bug in Prep involving eta-expanding partial applications that had additional type arguments.) ] [Naming changes in External Core Tim Chevalier **20080422012734 Two changes: - Top-level bindings in a given module are now printed as a single %rec group. I found that in External Core generated from optimized code, nonrec bindings weren't being printed in dependency order. Rather than fixing that, I decided to not even pretend to preserve dependency order (since there's recursion between modules anyway.) - Internal names are now printed with their uniques attached (otherwise, GHC was printing out code with shadowed bindings, and this isn't supposed to happen in External Core.) ] [Add clarifying comments about unsafeCoerce simonpj@microsoft.com**20080421152130] [Make the integer library to use more configurable Ian Lynagh **20080420195856 Now you just set INTEGER_LIBRARY=integer-foo in build.mk ] [Remove some duplicate extern decls Ian Lynagh **20080416162330] [Add some more generic (en|de)code(Double|Float) code Ian Lynagh **20080417171943] [Updates to handle Ordering moving from base to ghc-prim Ian Lynagh **20080412100657] [Fix lndir Ian Lynagh **20080408193436 It would copy when it should symlink, and vice-versa. ] [Improve External Core syntax Tim Chevalier **20080416000347 Got rid of the silly '^' characters before qualified names (plus: reverts to the original syntax; minus: makes the parser a little hairier.) Also, added warning in the typechecker for coercion kind mismatches rather than considering that a type error. (see the added comment in Check.hs for details.) ] [FIX BUILD (Windows): Copy the ln trick used by the GMP build Simon Marlow **20080414173225] [Revive the static argument transformation simonpj@microsoft.com**20080411162137 This patch revives the Static Argument Transformation, thanks to Max Bolingbroke. It is enabled with -fstatic-argument-transformation or -O2 Headline nofib results Size Allocs Runtime Min +0.0% -13.7% -21.4% Max +0.1% +0.0% +5.4% Geometric Mean +0.0% -0.2% -6.9% ] [Transfer strictness and arity info when abstracting over type variables simonpj@microsoft.com**20080411142418 See Note [transferPolyIdInfo] in Id.lhs, and test eyeball/demand-on-polymorphic-floatouts.hs Max Bolingbroke discovered that we were gratuitiously losing strictness info. This simple patch fixes it. But see the above note for things that are still discarded: worker info and rules. ] [Revive External Core typechecker Tim Chevalier **20080414024648 The typechecker works again! Yay! Details upon request. ] [Eta-expand newtype coercions in External Core Tim Chevalier **20080414031654 Typechecking External Core is easier if we eta-expand axioms in newtype declarations. For a fuller explanation, see: http://www.haskell.org/pipermail/cvs-ghc/2008-April/041948.html ] [Extra info in genprimopcode --make-ext-core-source Tim Chevalier **20080414025407 The ext-core typechecker needs to know what types are valid for various kinds of literals, so I changed genprimopcode to dump out that information as well with --make-ext-core-source. ] [Fixing HPCTIXDIR problem with mkdir usage on Windows andy@galois.com**20080411220510] [Update .darcs-boring with utils/ext-core stuff Tim Chevalier **20080411185734] [FIX #2197: an update frame might point to an IND_OLDGEN Simon Marlow **20080411173404] [Rejig error reporting in the unifier slightly simonpj@microsoft.com**20080411132350] [Improve error message layout slightly simonpj@microsoft.com**20080410113105] [Two improvements to boxy matching simonpj@microsoft.com**20080410112812 I can't quite remember what provoked these two changes, but they are in my tree. One improves boxy_match (which failed unnecessarily) One fixes boxy_lub (which was assymetrical) ] [Fix Trac #2206: ensure the return type is rigid in a GADT match simonpj@microsoft.com**20080410111514 ] [Fix Trac #2205, which I introduced recently simonpj@microsoft.com**20080410094336] [Ensure that arity is accurate in back end simonpj@microsoft.com**20080410084930 See Note [exprArity invariant] in CoreUtils. In code generated by Happy I was seeing this after TidyPgm and CorePrep f :: Any f {arity 1} = id `cast` unsafe-co So f claimed to have arity 1 (because exprArity looked inside), but did not have any top-level lambdas (because its type is Any). This triggered a slightly-obscure ASSERT failure in CoreToStg This patch - makes exprArity trim the arity if the type is not a function - adds a stronger ASSERT in TidyPgm It's not the only way to solve this problem (see Note [exprArity invariant]) but it's enough for now. ] [Make the arity and strictness agree, for wired-in bottoming Ids simonpj@microsoft.com**20080410082619] [Fix bug in vectorisation of case expressions Roman Leshchinskiy **20080411045307] [Extend genprimopcode to print primop types for ext-core Tim Chevalier **20080410185810 I added a new flag, --make-ext-core-source, to genprimopcode. It prints out the type information for primops that the External Core typechecker needs. This replaces the old mechanism where the ext-core tools had a hard-wired Prims module that could get out of sync with the old primops.txt. Now, that won't happen. ] [add pointers to the wiki for the rules about C prototypes Simon Marlow **20080409204143] [avoid warnings from ffi.h when UseLibFFIForAdjustors=YES Simon Marlow **20080409204048] [FIX BUILD (bootstrap with -fvia-C): prototype fixes Simon Marlow **20080409203724 ] [Another round of External Core fixes Tim Chevalier **20080410043727 With this patch, GHC should now be printing External Core in a format that a stand-alone program can parse and typecheck. Major bug fixes: - The printer now handles qualified/unqualified declarations correctly (particularly data constructor declarations) - It prints newtype declarations with enough information to typecheck code that uses the induced coercions (this required a syntax change) - It expands type synonyms correctly Documentation and external tool patches will follow. ] [Adding environment variable HPCTIXDIR, a directory to place tix results. andy@galois.com**20080408232450] [Fixing hpc combine and hpc map to use the correct help message andy@galois.com**20080408232032] [Import libffi-3.0.4, and use it to provide FFI support in GHCi Simon Marlow **20080408183434 This replaces the hand-rolled architecture-specific FFI support in GHCi with the standard libffi as used in GCJ, Python and other projects. I've bundled the complete libffi-3.0.4 tarball in the source tree in the same way as we do for GMP, the difference being that we always build and install our own libffi regardless of whether there's one on the system (it's small, and we don't want dependency/versioning headaches). In particular this means that unregisterised builds will now have a fully working GHCi including FFI out of the box, provided libffi supports the platform. There is also code in the RTS to use libffi in place of rts/Adjustor.c, but it is currently not enabled if we already have support in Adjustor.c for the current platform. We need to assess the performance impact before using libffi here too (in GHCi we don't care too much about performance). ] [FIX BUILD on non-x86: add missing prototypes Simon Marlow **20080407213748] [update a comment Simon Marlow **20080407212437] [remove dead code Simon Marlow **20080403223422] [Replace one occurance of CVS with darcs in HACKING Samuel Bronson **20080407222006] [Remove GADT refinements, part 5 Manuel M T Chakravarty **20080407070728 - TcGadt RIP - The non-side effecting unification code is now in types/Unify.lhs along with the refinement code needed for GADT record selectors. ] [Remove GADT refinements, part 4 Manuel M T Chakravarty **20080303063347 - MkId.mkRecordSelId only used a special case of refineGadt, which doesn't need full unification. That special case is now implemented as TcGadt.matchRefine and TcGadt.refineGadt can finally go. ] [Improve error message for malformed LANGUAGE pragma Tim Chevalier **20080406202333 I made the error (which previously said "cannot parse LANGUAGE pragma") slightly more helpful by reminding the user that pragmas should be comma-separated. ] [Improve error message for non-matching file name Tim Chevalier **20080406193821 I changed the "File name does not match module name" error message so that it prints out both the declared module name and the expected module name (before, it was only printing the declared module name.) ] [Virtualize the cwd in GHCi Pepe Iborra **20080405145136 This fixes the issue where :list would stop working if the program being debugged side-effected the working directory, and should prevent other similar issues ] [Fix rendering of references in :print under -fprint-evld-with-show flag Pepe Iborra **20071219174431] [Fix Trac #2188: scoping in TH declarations quotes simonpj@microsoft.com**20080404205556 This patch fixes a rather tiresome issue, namely the fact that a TH declaration quote *shadows* bindings in outer scopes: f g = [d| f :: Int f = g g :: Int g = 4 |] Here, the outer bindings for 'f' (top-level) and 'g' (local) are shadowed, and the inner bindings for f,g should not be reported as duplicates. (Remember they are top-level bindings.) The actual bug was that we'd forgotten to delete 'g' from the LocalRdrEnv, so the type sig for 'g' was binding to the outer 'g' not the inner one. ] [Fix simplifier thrashing simonpj@microsoft.com**20080403223819 Another example of the simplifier thrashing, getting nowhere. See SimplUtils, Note [Unsaturated functions] There's a test at eyeball/inline4.hs ] [Fix Trac #2179: error message for main simonpj@microsoft.com**20080403173746 A short-cut to generate the (runMainIO main) wrapper turned out to make a bad error message. This should fix it. ] [Fix Trac #2136: reporting of unused variables simonpj@microsoft.com**20080403110250 There's a bit of a hack RnBinds.rnValBindsAndThen, documented in Note [Unused binding hack]. But the hack was over brutal before, and produced unnecssarily bad (absence of) warnings. This patch does a bit of refactoring; and fixes the bug in rnValBindsAndThen. ] [Fix Trac #2137: report correct location for shadowed binding simonpj@microsoft.com**20080402153410 The error message generation for a shadowed binding was plain wrong, at least where the shadowed binding isn't top-level. Just a typo really -- the fix is trivial. ] [Fix Trac #2141: invalid record update simonpj@microsoft.com**20080402132057 See Note [Record field lookup] in TcEnv. The fix here is quite straightforward. ] [Do not #include external header files when compiling via C Simon Marlow **20080402051412 This has several advantages: - -fvia-C is consistent with -fasm with respect to FFI declarations: both bind to the ABI, not the API. - foreign calls can now be inlined freely across module boundaries, since a header file is not required when compiling the call. - bootstrapping via C will be more reliable, because this difference in behavour between the two backends has been removed. There is one disadvantage: - we get no checking by the C compiler that the FFI declaration is correct. So now, the c-includes field in a .cabal file is always ignored by GHC, as are header files specified in an FFI declaration. This was previously the case only for -fasm compilations, now it is also the case for -fvia-C too. ] [Derive a valid Ix instance for data Foo = Foo Int Int Ian Lynagh **20080330182813 The old one didn't satisfy the axioms. See trac #2158 for details. ] [Revive External Core parser Tim Chevalier **20080329223948 Huzzah, the External Core parser will now parse External Core generated by the HEAD. Most notably, I rewrote the parser in Parsec, but the old Happy version remains in the repository. I checked all the nofib benchmarks and most of the ghc-prim, base and integer libraries to make sure they parsed; one known bug: - Strings like "\x0aE", in which a hex escape code is followed by a letter that could be a hex digit, aren't handled properly. I'm investigating whether this is a bug in Parsec or expected behavior. The checker and interpreter still don't work, but should compile. Please mess around with the parser, report bugs, improve my code, etc., if you're so inclined. ] [Fix big character literal printing in External Core Tim Chevalier **20080329221109 Characters bigger than '\xff' should be represented as int literals in External Core. (This was originally fixed five years ago and broken again four and a half years ago...) ] [External Core: don't print superfluous parens in case types Tim Chevalier **20080329194629 The External Core printer was parenthesizing the scrutinee type in case expressions. Since this type is required to be atomic, the parens aren't necessary. ] [Don't import FastString in HsVersions.h Ian Lynagh **20080329185043 Modules that need it import it themselves instead. ] [DEBUG removal Ian Lynagh **20080329171135] [DEBUG removal Ian Lynagh **20080329171013] [DEBUG removal Ian Lynagh **20080329170935] [DEBUG removal Ian Lynagh **20080329170341] [DEBUG removal Ian Lynagh **20080329170227] [DEBUG removal Ian Lynagh **20080329165412] [Fix typo; spotted by Bdh in #ghc Ian Lynagh **20080329165303] [DEBUG removal Ian Lynagh **20080329164849] [DEBUG removal Ian Lynagh **20080329164420] [Remove a DEBUG use Ian Lynagh **20080329164209] [Remove a DEBUG Ian Lynagh **20080329163936] [Remove more #ifdef DEBUGs Ian Lynagh **20080329145716] [Remove an #ifdef DEBUG Ian Lynagh **20080329145508] [Remove an #ifdef DEBUG Ian Lynagh **20080329145244] [Remove an #ifdef DEBUG Ian Lynagh **20080329144844] [Remove a #ifdef DEBUG Ian Lynagh **20080329144658] [Remove an #ifdef DEBUG Ian Lynagh **20080329144544] [Remove some redundant code Ian Lynagh **20080329144226] [prelude/PrimOp is now mostly warning-free Ian Lynagh **20080329143914 commutableOp seems to be unused, so we're no 100% there yet. ] [Fix warnings from primops.txt.pp Ian Lynagh **20080329142637] [Use _ rather than "other" in generated code Ian Lynagh **20080329142508] [Fix some warnings Ian Lynagh **20080329142219] [Remove some redundant imports Ian Lynagh **20080329141809] [Remove an #ifdef DEBUG Ian Lynagh **20080329141733] [Remove an #ifdef DEBUG Ian Lynagh **20080329141629] [Remove some unnecessary imports Ian Lynagh **20080329141145] [Remove an unnecessary #ifdef DEBUG Ian Lynagh **20080329141047] [Another debugIsOn use Ian Lynagh **20080329140126] [Convert some DEBUG uses to debugIsOn Ian Lynagh **20080329135950] [Put debugIsOn in Util, rather than rely on it being CPPed in Ian Lynagh **20080329135755] [External Core: print function types correctly, improve newtype pretty-printing Tim Chevalier **20080328222630 - In a previous patch I broke the printing of fully-applied arrow types (e.g., "a -> b" was "(ghczmprim:GHCziPrim a b)") by z-encoding package names and not updating the primitive module name as defined in External Core accordingly. Fixed. (Mega sigh...) - Make newtype decls print slightly more readably. ] [Print out rational literals correctly in External Core Tim Chevalier **20080328211919 The External Core printer was printing out rational literals of the form: 2.0e-2 when the External Core grammar doesn't allow this. (This bug has apparently been there since the beginning...) It's now printing rationals in the same form that (show (r::Rational)) does. This requires a parser change as well (soon to come.) ] [Change syntax for qualified names in External Core Tim Chevalier **20080327185436 Two changes that make the ext-core code uglier but the parser easier: - Prefix qualified names with "^" so that we can more easily distinguish a qualified name: ^a:Foo.Bar.quux from an unqualified name: a - z-encode package names ("ghc-prim" was the culprit.) ] [Make use of the SDoc type synonym Ian Lynagh **20080326175306] [Fix warnings in rename/RnTypes Ian Lynagh **20080326174657] [Fix warnings in basicTypes/IdInfo Ian Lynagh **20080326170014] [Fix warnings in basicTypes/NameEnv Ian Lynagh **20080326165139] [Fix warnings in basicTypes/NameSet Ian Lynagh **20080326164837] [Fix warning in basicTypes/NewDemand Ian Lynagh **20080326160017] [Fix warnings in basicTypes/VarEnv Ian Lynagh **20080326155412] [Fix warnings in basicTypes/VarSet Ian Lynagh **20080326155105] [main/BreakArray has no warnings Ian Lynagh **20080326154747] [In validate settings, make -Werror easier to override Ian Lynagh **20080326141030] [Remove a redundant type sig Ian Lynagh **20080326004932] [Fix warnings in main/DriverPhases Ian Lynagh **20080325235828] [Remove redundant type sig Ian Lynagh **20080325235801] [Fix warnings in main/HscStats Ian Lynagh **20080325234110] [Fix warnings in main/Constants Ian Lynagh **20080325233034] [Fix warnings in main/InteractiveEval Ian Lynagh **20080325230153] [Fix warnings in main/Packages Ian Lynagh **20080325224444] [Fix warnings in main/PprTyThing Ian Lynagh **20080325223104] [Fix warnings in main/StaticFlags Ian Lynagh **20080325221632] [Change syntax for newtypes in External Core Tim Chevalier **20080325170218 The way that newtype declarations were printed in External Core files was incomplete, since there was no declaration for the coercion introduced by a newtype. For example, the Haskell source: newtype T a = MkT (a -> a) foo (MkT x) = x got printed out in External Core as (roughly): %newtype T a = a -> a; foo :: %forall t . T t -> t -> t = %cast (\ @ t -> a1 @ t) (%forall t . T t -> ZCCoT t); There is no declaration anywhere in the External Core program for :CoT, so that's bad. I changed the newtype decl syntax so as to include the declaration for the coercion axiom introduced by the newtype. Now, it looks like: %newtype T a ^ (ZCCoT :: ((T a) :=: (a -> a))) = a -> a; And an external typechecker could conceivably typecheck code that uses this. The major changes are to MkExternalCore and PprExternalCore (as well as ExternalCore, to change the External Core AST.) I also corrected some typos in comments in other files. Documentation and external tool changes to follow. ] [Fix warnings in the RTS Ian Lynagh **20080325160314 For some reason this causes build failures for me in my 32-bit chroot, ] [Another change for GHC.PrimopWrappers moving from base to ghc-prim Ian Lynagh **20080324224006] [Update darcs-boring Ian Lynagh **20080324212319] [Fix primMname in External Core printer Tim Chevalier **20080324014311 My earlier changes broke printing of function types in .hcr files. In other words: the z-encoding must die. ] [Fix primMname in External Core printer Tim Chevalier **20080324005246 My earlier changes broke printing of function types in .hcr files. In other words: the z-encoding must die. ] [Follow library changes Ian Lynagh **20080323182557 Integer, Bool and Unit/Inl/Inr are now in new packages integer and ghc-prim. ] [CgTicky now doesn't know about the Integer data constructors Ian Lynagh **20080320195836] [-DDEBUG build fix Ian Lynagh **20080322140641] [Rename rebuild to remake, and define rebuild to "clean; build" Ian Lynagh **20080320221915] [Handle hierarchical module names in External Core tools Tim Chevalier **20080320014449 I updated the parser to handle hierarchical module names (with package names) the way GHC is currently printing them out in External Core. Beware kludgy use of z-encoding and gratutious copy-pasta from GHC. You can now use the stand-alone Core parser to parse a very simple GHC-generated .hcr file (progress!) but not to typecheck or interpret it (the typechecker/interpreter don't snarf in the right libraries yet, among other things.) And, the parser is still incomplete in that it doesn't handle programs with newtypes/GADTs/etc. whose syntax has changed since 2003. In other words: probably don't try to use this yet. ] [Improve hierarchical module name handling in MkExternalCore Tim Chevalier **20080319190429 It's easier for the External Core parser if MkExternalCore prints module names like: base:GHCziBase rather than like: base:GHC.Base (which it was doing before.) So now we z-encode the hierarchical module-name part of a module name, but don't z-encode the ':'. I also removed some old comments that don't seem relevant anymore. ] [Fixed remaining warning in coreSyn/MkExternalCore Tim Chevalier **20080319182521 There was a (suppressed) warning about an incomplete pattern match in make_alt. This was because the DEFAULT alt never has variable bindings. I thought it would be better to check that case and panic if it happens than to have an incomplete pattern. It's still not great, but at least now we don't have to suppress any warnings in this file. ] [Revert an accidental change Ian Lynagh **20080317200130] [Print some extra debugging info when doing --show-iface Ian Lynagh **20080317185032] [Eliminate a global variable Ian Lynagh **20080317180150 Very little parameter passing is needed without it, so there was no real benefit to it. ] [Follow changes in editline Ian Lynagh **20080317103617] [Use editline instead of readline Ian Lynagh **20080316060407] [Vectorise tuple constructorsn Roman Leshchinskiy **20080317033436] [Added double divide and unzipP keller@cse.unsw.edu.au**20080317025553] [Added 'div' to set of vectorising functions keller@cse.unsw.edu.au**20080311125035] [If unregisterised, link with -optl-Wl,--relax on IA64 Ian Lynagh **20080316214104 This fixes part of trac #856 ] [When concatenating variables in Makefile, strip spaces in case one is empty Ian Lynagh **20080315141751 Otherwise "$(A) $(B)" will not be equal to "" even if A and B are empty. Trac #856. ] [Fix a space leak in :trace (trac #2128) Ian Lynagh **20080316211748 We were doing lots of cons'ing and tail'ing without forcing the tails, so were building up lots of thunks. ] [If we are failing due to a warning and -Werror, say so Ian Lynagh **20080316195636 Fixes trac #1893, based on a patch from Daniel Franke. ] [Remove leftover NoteTy/FTVNote bits Ian Lynagh **20080315194220] [Remove uses of addFreeTyVars Ian Lynagh **20080315155027 This optimisation actually make things a bit slower on average, as measured by nofib. The example in #1136 in particular suffers from high memory usage. Therefore we no longer do the optimisation. ] [parsing tweak for :break Simon Marlow **20080313182936] [Some cleanup in TcSimplify.reduceContext Manuel M T Chakravarty **20080313065220 - Makes this horrid function a bit better - and shorter! - Also gets rid of another API function of TcTyFuns ] [Properly normalise reduced dicts Manuel M T Chakravarty **20080313051708 - Another chapter in the never-ending TcSimplify.reduceContext saga: after context reduction of wanted dicts it is not sufficient to normalise them wrt to the wanted equalities. We also need to take top-level equalities into account. (In fact, we probably also have to normalise wrt to given equalities, but I have left that open for the moment - but added a TODO note.) - This finally eliminates substEqInDictInsts from TcTyFuns interface and suggest some further possible clean up (which will be in a separate patch). Thanks to Roman for the intricate example that uncovered this bug. ] [Bump mAX_NDP_PROD to 5 Roman Leshchinskiy **20080313061411] [#2050: save the GHCi history in ~/.ghc/ghci_history Simon Marlow **20080312215724 Modified version of Judah's patch ] [Make sure we generate PA dictionaries for tuples up to mAX_NDP_PROD Roman Leshchinskiy **20080312034905] [Bump mAX_NDP_PROD to 4 Roman Leshchinskiy **20080312030245] [First cut at reviving the External Core tools Tim Chevalier **20080310025821 I updated the External Core AST to be somewhat closer to reality (where reality is defined by the HEAD), and got all the code to compile under GHC 6.8.1. (That means it works, right?) Major changes: - Added a Makefile. - Core AST: - Represented package names and qualified module names. - Added type annotation on Case exps. - Changed Coerce to Cast. - Cleaned up representation of qualified/unqualified names. - Fixed up wired-in module names (no more "PrelGHC", etc.) - Updated parser/interpreter/typechecker/prep for the new AST. - Typechecker: - Used a Reader monad to pass around the global environment and top module name. - Added an entry point to check a single expression. - Prep: - Got rid of typeofExp; it's now defined in terms of the typechecker. ] [Remove ndpFlatten Roman Leshchinskiy **20080309225914 This patch removes the ndpFlatten directory and the -fflatten static flag. This code has never worked and has now been superceded by vectorisation. ] [documentation fix: change flag -frules-off to -fno-rewrite-rules iavor.diatchki@gmail.com**20080309191911] [Don't expose the unfolding of dictionary selectors without -O simonpj@microsoft.com**20080306135026 When compiling without -O we were getting code like this f x = case GHC.Base.$f20 of :DEq eq neq -> eq x x But because of the -O the $f20 dictionary is not available, so exposing the dictionary selector was useless. Yet it makes the code bigger! Better to get f x = GHC.Base.== GHC.Bsae.$f20 x x This patch suppresses the implicit unfolding for dictionary selectors when compiling without -O. We could do the same for other implicit Ids, but this will do for now. There should be no effect when compiling with -O. Programs should be smaller without -O and may run a tiny bit slower. ] [Fix Trac #783: improve short-cutting literals in the type checker simonpj@microsoft.com**20080306134734 The Inst.shortCutIntLit mechanism in the type checker was missing cases where a floating-point literal was given without an explicit decimal point. As a result, programs with lots of floating-point literals (without decimals) ended up with massive Static Reference Tables. This is not cool. See comments with Trac #783 for details. ] [Fix Trac #2138: print the 'stupid theta' of a data type simonpj@microsoft.com**20080306134651] [Fix vectorisation monad Roman Leshchinskiy **20080307050859] [Improve SpecConstr for local bindings: seed specialisation from the calls simonpj@microsoft.com**20080306120004 This patch makes a significant improvement to SpecConstr, based on Roman's experience with using it for stream fusion. The main change is this: * For local (not-top-level) declarations, seed the specialisation loop from the calls in the body of the 'let'. See Note [Local recursive groups] for discussion and example. Top-level declarations are treated just as before. Other changes in this patch: * New flag -fspec-constr-count=N sets the maximum number of specialisations for any single function to N. -fno-spec-constr-count removes the limit. * Refactoring in specLoop and friends; new algebraic data types OneSpec and SpecInfo instead of the tuples that were there before * Be less keen to specialise on variables that are simply in scope. Example f p q = letrec g a y = ...g.... in g q p We probably do not want to specialise 'g' for calls with exactly the arguments 'q' and 'p', since we know nothing about them. ] [Refactor OccAnal; and improve dead-code elimination simonpj@microsoft.com**20080305155708 The occurrence analyer is now really rather subtle when dealing with recursive groups; see Note [Loop breaking and RULES] especially. This patch refactors this code a bit, notably * Introduces a new data type Details instead of a tuple * More clearly breaks up a recursive group into its SCCs before processing it in a separate function occAnalRec * As a result, does better dead-code elimination, becuause it's done per SCC rather than for the whole Rec ] [Copy the right ghc-pkg.bin into bindists Ian Lynagh **20080305224020] [Add a missing endif to the bindist Makefile Ian Lynagh **20080305221136] [Fix bashisms; patch from Bernie Pope Ian Lynagh **20080305134556] [Improve no-type-signature warning Ian Lynagh **20080305011242 Instead of Warning: Definition but no type signature for `.+.' Inferred type: .+. :: forall a. a we now say Warning: Definition but no type signature for `.+.' Inferred type: (.+.) :: forall a. a ] [Fix typo Ian Lynagh **20080302151339] [In bindists, look in the right place to see if we have provided docs Ian Lynagh **20080302140408 Fixes trac #1971: unjustified warning about documentation ] [Remove GADT refinements, part 3 Manuel M T Chakravarty **20080229035740] [MacOS installer: Uninstaller must be able to deal with ATiger receipts Manuel M T Chakravarty **20080228050707] [Add and use seqBitmap when constructing SRTs Ian Lynagh **20080227144505 This roughly halves memory usage when compiling module Foo where foo :: Double -> Int foo x | x == 1 = 1 ... foo x | x == 500 = 500 without optimisation. ] [Whitespace Ian Lynagh **20080220191230] [Remove GADT refinements, part 2 Manuel M T Chakravarty **20080228055326] [Fix Trac #2130: improve derived Ord for primmitive types simonpj@microsoft.com**20080228121106 This patch does two things: * (Minor): in TcGenDeriv.careful_compare_Case, test for less-than before equality. This should reduce the number of dynamic tests, and also gives more scope for optimisation, since less-than tells us more than equality. * (More important): add special-case derived code for data types that are simple wrappers of primitive types. See Note [Comparision of primitive types] This fixes Trac 2130. However see also Trac #2132, which is not addressed here. ] [Comments only simonpj@microsoft.com**20080228111301] [add a note about SMP execution not being supported with profiling Simon Marlow **20080228112209] [Wibble to error message (stmt of do block or comprehension) simonpj@microsoft.com**20080228083104] [Make explicit lists more fusable Max Bolingbroke **20080228083050] [Add comments explaining flags simonpj@microsoft.com**20080228082935] [Remove GADT refinements, part 1 Manuel M T Chakravarty **20080228045351 - A while ago, I changed the type checker to use equality constraints together with implication constraints to track local type refinement due to GADT pattern matching. This patch is the first of a number of surgical strikes to remove the resulting dead code of the previous GADT refinement machinery. Hurray to code simplification! ] [Eliminate SkolemOccurs skolems only after checkLoop reached a fixed point Manuel M T Chakravarty **20080228001957 - See test case indexed-types/should_fail/SkolemOccursLoop, which sends the type checker into an endless loop without this fix ] [Fix Trac #2126: re-order tests (easy) simonpj@microsoft.com**20080227163202] [Fix Trac #2111: improve error handling for 'rec' in do-notation simonpj@microsoft.com**20080226175635 We were not dealing correctly with all the combinations of do notation mdo notation arrow notation in combination with 'rec' Stmts. I think this patch sorts it out. ] [Remove gaw comment simonpj@microsoft.com**20080226175305] [Fix Trac #1899; missing equality check in typechecker's constraint simplifier simonpj@microsoft.com**20080226174743 This patch fixes a missing equality check (uifying type variable b=b) in the new constraint simplifier in TcTyFuns. As it stands, we were making 'b' point to itself, which subsequently led to an infinite loop when zonking. Test is T1899.hs ] [Enable -prof -threaded (#886) Simon Marlow **20080228111631 It turns out that -prof -threaded works (modulo some small changes), because all the data structures used in profiling are only accessed by one thread at a time, at long as we don't use +RTS -N2 or higher. So this patch enables the use of -prof -threaded, but an error is given if you ask for more than one CPU with +RTS -N. ] [Mac installer: cross-compile for 10.4 Manuel M T Chakravarty **20080225093734] [Make UniqFM non-strict again while we work out what we're doing. Ian Lynagh **20080225171305 This "fixes" the very-slow problem we have when compiling dictionaries. ] [Fix Trac #2082 simonpj@microsoft.com**20080219173410] [Fix Trac #2114: error reporting for 'forall' without appropriate flags simonpj@microsoft.com**20080222182646] [Improve error messages from type-checking data constructors simonpj@microsoft.com**20080222182514 This addresses Trac #2112 ] [Add type sigs and minor refactoring simonpj@microsoft.com**20080222182305] [FIX #2073: Don't add empty lines to GHCI's history Ian Lynagh **20080224143256] [FIX #1977: Check to see if $(bindir) is in the path Ian Lynagh **20080224134334 Before telling the user to add it, when installing a bindist, check to see if $(bindir) is already in the path. ] [Fix warnings in Simplify Ian Lynagh **20080222150318] [Whitespace Ian Lynagh **20080222140755] [Add a comment Ian Lynagh **20080220205844] [Fix most of the warnings in StgLint Ian Lynagh **20080220171858] [Whitespace Ian Lynagh **20080220171140] [CprAnalyse is warning-free Ian Lynagh **20080220170843] [Whitespace Ian Lynagh **20080220170650] [Mac OS X deployment target: piping opts through Makefiles Manuel M T Chakravarty **20080221224449] [FIX #2122: file locking bug Simon Marlow **20080226104650 Second and subsequent readers weren't being inserted into the fd->lock hash table, which meant that the file wasn't correctly unlocked when the Handles were closed. ] [documentation improvements from Frederik Eaton Simon Marlow **20080226102612] [markup fix Simon Marlow **20080226102558] [Rewrite fixTvSubstEnv so it iteratively applies its substition Ian Lynagh **20080220153752 This fixes a stack overflow when using strict UniqFMs. It might be possible to rewrite it more efficiently, or to avoid needing it in the first place. ] [Typo Ian Lynagh **20080219204117] [Make some more modules use LazyUniqFM instead of UniqFM Ian Lynagh *-20080207015714 If these modules use UniqFM then we get a stack overflow when compiling modules that use fundeps. I haven't tracked down the actual cause. ] [Add configure option --with-macos-deployment-target Manuel M T Chakravarty **20080219031755] [Fix warning in SCCfinal Ian Lynagh **20080219020429] [Whitespace only Ian Lynagh **20080219015259] [Fix warnings in UniqSupply Ian Lynagh **20080219013233] [Whitespace only Ian Lynagh **20080219012417] [Fix non-missing-signature warnings in MkId Ian Lynagh **20080219010917] [Whitespace only Ian Lynagh **20080219005042] [Whitespace only Ian Lynagh **20080218234559] [Make literals in the syntax tree strict Ian Lynagh **20080218183424] [Make the parser a bit stricter Ian Lynagh **20080218175514] [seq what we actually want to seq, not the seq'ing function Ian Lynagh **20080213131857] [All installed Haskell prgms have an inplace and an installed version Manuel M T Chakravarty **20080218061809 - GHC installs a range of compiled Haskell programs in addition to the actual compiler. To ensure that they all run on the platform targeted by the build (which may have different libraries installed than the build host), we need to make sure that all compiled Haskell code going into an install is build with the stage 1 compiler, not the bootstrap compiler. Getting this right is especially important on the Mac to enable builds that work on Mac OS X versions that are older than the one performing the build. - For all installed utils implemented in Haskell (i.e., ghc-pkg, hasktags, hsc2hs, runghc, hpc, and pwd) we compile two versions, an inplace version and a version for installation. The former is build by the bootstrap compiler during the stage 1 build and the latter is build by the stage 1 compiler during the stage 2 build. - This is really very much as the setup for ghc itself, only that we don't use separate stage1/ and stage2/ build directories. Instead, we clean before each build. CAVEAT: This only works properly if invoked from the toplevel Makefile. - Instead of UseStage1=YES (as used by the previous binary-dist-specific recompilation), we now use the same $(stage) variables as used for the compiler proper - to increase uniformity and to avoid extra conditionals for the install target. ] [Fix warnings in Pretty Ian Lynagh **20080218214151] [Fix warnings in FiniteMap Ian Lynagh **20080218200408] [Fix warnings in Binary Ian Lynagh **20080218193645] [Fix warnings in StringBuffer Ian Lynagh **20080218191846] [Fix warnings in IOEnv Ian Lynagh **20080218190849] [Fix #1984: missing context switches Simon Marlow **20080219102212] [fix unregisterised stage 2 build Simon Marlow **20080219093407] [Fix warnings in FastString, and check for empty case in head/tail Ian Lynagh **20080218144707] [Whitespace only Ian Lynagh **20080218112232] [Whitespace only Ian Lynagh **20080218112101] [Whitespace only Ian Lynagh **20080218111941] [Whitespace only Ian Lynagh **20080218110241] [Whitespace only Ian Lynagh **20080218105909] [Whitespace only Ian Lynagh **20080218105343] [Tweak whitespace Ian Lynagh **20080217175133] [Fix typo Ian Lynagh **20080217175021] [Print better error message for reading External Core Tim Chevalier **20080217223844 GHC panicked with a "Prelude.undefined" error message if you tried to compile a .hcr file. Since support for reading ExternalCore simply does not exist, I added an error message to say that. Please merge to 6.8. Thanks. ] [Documentation only: update External Core section of user guide Tim Chevalier **20080217213206 I updated the External Core section of the user guide, mostly to reflect that the input path is broken and there are no firm plans to fix it. ] [Generate foo(void) rather than foo() in FFI stub files Ian Lynagh **20080216141031 -Wstrict-prototypes warns about the latter. Patch from pcc in trac #2100. ] [Make hasktags -Wall clean Ian Lynagh **20080215160309] [Whitespace only Ian Lynagh **20080215155122] [Fix building hasktags Ian Lynagh **20080215154415] [Revert an accidental comment change Ian Lynagh **20080215153558] [find module names, fix for get constructor names, find class names as well, sort ctag files marco-oweber@gmx.de**20080212232157] [added TODO item and link to alternatives on wiki marco-oweber@gmx.de**20080212231853] [Make more arch-specific #if's exclusive with #else #error cases Duncan Coutts **20080207170020 So when the next person compiles the Sparc NCG it should fail more obviously at compile time rather than panicing at runtime. Plus one obvious fix for LocalReg gaining an extra param Missing bits of Sparc NCG: * genSwitch for generating jump tables. This is the most tricky one. * ALLOCATABLE_REGS_INTEGER and ALLOCATABLE_REGS_DOUBLE just requires finding and verifying the values. The nearby comment describes how. * isRegRegMove and mkRegRegMoveInstr. Sparc uses Or for int move, check what this is supposed to do for single and double float types. * regDotColor. Probably just copy the ppc impl. ] [Document code a bit better Ian Lynagh **20080213161106] [Add a necessary [] error case Ian Lynagh **20080213154232] [\e -> f e ===> f Ian Lynagh **20080213153835] [Fixed warnings in parser/Lexer.x Twan van Laarhoven **20080204021131 The -w flag can not be removed, because alex also generates code with lots of warnings. ] [Monadification and Fixed warnings in parser/RdrHsSyn, except for incomplete pattern matches Twan van Laarhoven **20080204015053] [Fixed warnings in vectorise/VectMonad Twan van Laarhoven **20080203223932] [Fix typo in message Roman Leshchinskiy **20080212052219] [Mac installer: Added XCODE_EXTRA_CONFIGURE_ARGS Manuel M T Chakravarty **20080211115201] [attempt to fix #2098 (PPC pepple please test & fix) Simon Marlow **20080218115748] [Mac installer: make Uninstaller a bit more robust Manuel M T Chakravarty **20080211091119] [Mac installer: add comprehensive licencing information Manuel M T Chakravarty **20080211061450] [Force -s on ar in xcode builds Manuel M T Chakravarty **20080211022329] [Fix warning (FIX validate) Roman Leshchinskiy **20080211040211] [Symbolic tags for simplifier phases Roman Leshchinskiy **20080211032350 Every simplifier phase can have an arbitrary number of tags and multiple phases can share the same tags. The tags can be used as arguments to -ddump-simpl-phases to specify which phases are to be dumped. For instance, -ddump-simpl-phases=main will dump the output of phases 2, 1 and 0 of the initial simplifier run (they all share the "main" tag) while -ddump-simpl-phases=main:0 will dump only the output of phase 0 of that run. At the moment, the supported tags are: main The main, staged simplifier run (before strictness) post-worker-wrapper After the w/w split post-liberate-case After LiberateCase final Final clean-up run The names are somewhat arbitrary and will change in the future. ] [Allow -ddump-simpl-phases to specify which phases to dump Roman Leshchinskiy **20080211020630 We can now say -ddump-simpl-phases=1,2 to dump only these two phases and nothing else. ] [Fixed warnings in parser/ParserCoreUtils Twan van Laarhoven **20080204022226] [Fixed warnings in hsSyn/Convert, except for incomplete pattern matches Twan van Laarhoven **20080204000510] [Fixed warnings in types/Unify Twan van Laarhoven **20080203224228] [Fixed warnings in ndpFlatten/FlattenInfo Twan van Laarhoven **20080203224159] [Fixed warnings in vectorise/VectBuiltIn Twan van Laarhoven **20080203224043] [Fixed warnings in vectorise/VectCore Twan van Laarhoven **20080203224003] [Fixed warnings in deSugar/DsExpr, except for incomplete pattern matches Twan van Laarhoven **20080203214848] [Fixed warnings in deSugar/DsGRHSs, except for incomplete pattern matches Twan van Laarhoven **20080203214602] [Fixed warnings in deSugar/DsListComp, except for incomplete pattern matches Twan van Laarhoven **20080203211253] [Fixed warnings in deSugar/Check, except for incomplete pattern matches Twan van Laarhoven **20080203210814] [Fixed warnings in deSugar/Match, except for incomplete pattern matches Twan van Laarhoven **20080203210533] [Fixed warnings in deSugar/MatchCon, except for incomplete pattern matches Twan van Laarhoven **20080203210402] [Fixed warnings in deSugar/DsMonad Twan van Laarhoven **20080203210339] [Wibble the Makefile: DQ, \" and '"' Ian Lynagh **20080210171104] [Don't use -w when compiling Config.hs Ian Lynagh **20080210171050] [Add typesigs to Config.hs Ian Lynagh **20080210170925] [Allow skipping "make clean" or only re-running the testsuite in validate Ian Lynagh **20080210162842] [Mac installer: added support for full docs Manuel M T Chakravarty **20080209110727] [Fixed permissions and other cleanup in Mac installer package Manuel M T Chakravarty **20080207030528] [Adjust error message (Trac #2079) simonpj@microsoft.com**20080207171622] [Redo inlining patch, plus some tidying up simonpj@microsoft.com**20080207155102 This adds back in the patch * UNDO: Be a little keener to inline It originally broke the compiler because it tickled a Cmm optimisation bug, now fixed. In revisiting this I have also make inlining a bit cleverer, in response to more examples from Roman. In particular * CoreUnfold.CallCtxt is a data type that tells something about the context of a call. The new feature is that if the context is the argument position of a function call, we record both - whether the function (or some higher up function) has rules - what the argument discount in that position is Either of these make functions keener to inline, even if it's in a lazy position * There was conseqential tidying up on the data type of CallCont. In particular I got rid of the now-unused LetRhsFlag ] [Comments, and a type signature simonpj@microsoft.com**20080125174203] [Convert more UniqFM's back to LazyUniqFM's Ian Lynagh **20080207144736 These fix these failures: break008(ghci) break009(ghci) break026(ghci) ghci.prog009(ghci) ghci025(ghci) print007(ghci) prog001(ghci) prog002(ghci) prog003(ghci) at least some of which have this symptom: Exception: expectJust prune ] [Be a bit more consistent about what's a set and what's a map Ian Lynagh **20080205211909] [Make some more modules use LazyUniqFM instead of UniqFM Ian Lynagh **20080207015714 If these modules use UniqFM then we get a stack overflow when compiling modules that use fundeps. I haven't tracked down the actual cause. ] [Remove unused import Ian Lynagh **20080207002544] [Make UniqFM strict in its elements Ian Lynagh **20080206141620] [Use uniqSetToList rather than eltsUFM Ian Lynagh **20080206000043] [Use isEmptyUniqSet rather than isNullUFM Ian Lynagh **20080205205336] [Added Uninstaller Manuel M T Chakravarty **20080206073054] [Teach cheapEqExpr about casts Roman Leshchinskiy **20080206035007 Previously, cheapEqExpr would always return False if it encountered a cast. This was bad for two reasons. Firstly, CSE (which uses cheapEqExpr to compare expressions) never eliminated expressions which contained casts and secondly, it was inconsistent with exprIsBig. This patch fixes this. ] [Inject implicit bindings before the simplifier (Trac #2070) simonpj@microsoft.com**20080205165507 With constructor unpacking, it's possible for constructors and record selectors to have non-trivial code, which should be optimised before being fed to the code generator. Example: data Foo = Foo { get :: {-# UNPACK #-} !Int } Then we do not want to get this: T2070.get = \ (tpl_B1 :: T2070.Foo) -> case tpl_B1 of tpl1_B2 { T2070.Foo rb_B4 -> let { ipv_B3 [Just S] :: GHC.Base.Int [Str: DmdType m] ipv_B3 = GHC.Base.I# rb_B4 } in ipv_B3 } If this goes through to codegen, we'll generate bad code. Admittedly, this only matters when the selector is used in a curried way (e.g map get xs), but nevertheless it's silly. This patch injects the implicit bindings in SimplCore, before the simplifier runs. That slows the simplifier a little, because it has to look at some extra bindings; but it's probably a slight effect. If it turns out to matter I suppose we can always inject them later, e.g. just before the final simplification. An unexpected (to me) consequence is that we get some specialisation rules for class-method selectors. E.g. we get a rule RULE (==) Int dInt = eqInt There's no harm in this, but not much benefit either, because the same result will happen when we inline (==) and dInt, but it's perhaps more direct. ] [Make do-notation a bit more flexible (Trac #1537) simonpj@microsoft.com**20080205164816 This is a second attempt to fix #1537: to make the static typechecking of do-notation behave just like the desugared version of the same thing. This should allow parameterised monads to work properly (see Oleg's comment in the above ticket). We can probably merge to 6.8.3 if it goes smoothly. Incidentally, the resulting setup suffers from greater type ambiguity if (>>=) has a very general type. So test rebindable6 no longer works (at least not without more type signatures), and rebindable5 requires extra functional dependencies. But they are weird tests. ] [White space only simonpj@microsoft.com**20080205163702] [FIX #2047: Windows (and older Unixes): align info tables to 4 bytes, not 2 Simon Marlow **20080205101425 Perhaps in the past '.align 2' meant align to 4 bytes, but nowadays it means align to 2 bytes. The compacting collector requires info tables to be aligned to 4 bytes, because it stores tag bits in the low 2 bits. This only affects -fvia-C - the native code generator was already emitting the correct alignment. The incorrect alignment might well have been adversely affecting performance with -fvia-C on Windows. ] [Most of installer for framework on system volume Manuel M T Chakravarty **20080205073738] [Split into two types of Mac installer specs Manuel M T Chakravarty **20080205052504] [Lambda logo for packages Manuel M T Chakravarty **20080205052017 - This image is in the public domain, cf http://en.wikipedia.org/wiki/Image:Greek_lc_lamda_thin.svg ] [xcode build target for fixed /Library/Frameworks inst Manuel M T Chakravarty **20080205030047 - Also moving all MacOS-specific Makefile components into distrib/MacOS/Makefile ] [First stab at an installer package for the Mac Manuel M T Chakravarty **20080202134853 - GHC as a Mac framework - I tried to make a package where the user could choose whether to install in /Library/Frameworks or ~/Library/Frameworks (to allow installation for non-admins). However, that doesn't work well without including the whole distribution twice as the decision as to whether the admin password needs to be entered is made at packaging time (not at install time). ] [FIX #2023: substitute for $topdir in haddockInterfaces and haddockHTMLs Simon Marlow **20080209143648] [FIX #2080: an optimisation to remove a widening was wrong Simon Marlow **20080208124219] [Remove some of the old compat stuff now that we assume GHC 6.4 Simon Marlow **20080208124132] [Allow runghc to take input from stdin, just like Ruby & Python Simon Marlow **20080207145830] [Remove old code to get TMPDIR, use System.Directory.getTemporaryDirectory Simon Marlow **20080207143915] [remove a bogus assertion Simon Marlow **20080207143805] [Tweaks to stack squeezing Simon Marlow **20080207122445 1. We weren't squeezing two frames if one of them was a marked update frame. This is easy to fix. 2. The heuristic to decide whether to squeeze was a little conservative. It's worth copying 3 words to save an update frame. ] [FIX BUILD on x86_64 Simon Marlow **20080206113936] [matchesPkg: match against the pkg Id (foo-1.0) not just the package name (foo) Simon Marlow **20080205090429 Fixes the ghcpkg01 test. ] [Fix DEBUG build simonpj@microsoft.com**20080204160514] [Support for using libffi to implement FFI calls in GHCi (#631) Simon Marlow **20080204161053 This means that an unregisterised build on a platform not directly supported by GHC can now have full FFI support using libffi. Also in this commit: - use PrimRep rather than CgRep to describe FFI args in the byte code generator. No functional changes, but PrimRep is more correct. - change TyCon.sizeofPrimRep to primRepSizeW, which is more useful ] [Make seqAlts actually seq everything Ian Lynagh **20080203134321] [Strictness tweaks Ian Lynagh **20080203024836] [Whitespace Ian Lynagh **20080203003929] [Whitespace only Ian Lynagh **20080202213936] [Tweak strictness Ian Lynagh **20080202213542] [Fix warnings in deSugar/DsBinds Ian Lynagh **20080130144014] [Use the correct libffi type for pointers Simon Marlow **20080104131936] [UNDO: Be a little keener to inline Simon Marlow **20080201144810 This patch caused at least the following test failures: 1744(normal) ghci028(ghci) unicode001(normal) and additionally made the stage3 build fail. A little more validation please! I didn't find the exact cause of the failure yet, but it appears that the Lexer is miscompiled in some strange way. If any of {Encoding, StringBuffer, or Lexer} are compiled without -O, the problem goes away. ] [Be a little keener to inline simonpj@microsoft.com**20080125104616 This is really a bug. A saturated call in an "interesting" context should inline, but there was a strange "n_val_args > 0" condition, which was stopping it. Reported by Roman. ] [FIX BUILD with GHC 6.4.x Simon Marlow **20080201122753] [FIX BUILD with ghc-6.4.x Simon Marlow **20080201114302] [Warning clean up Manuel M T Chakravarty **20080131024845] [Move spiltDmdTy within module (no change in code) simonpj@microsoft.com**20080129011438] [Fix typo where I forgot the new substitution simonpj@microsoft.com**20080128213856] [Add missing (error) case in isIrrefutablePat simonpj@microsoft.com**20080128213429] [Add missing (error) case in pprConDecl simonpj@microsoft.com**20080128213409] [Fix warnings on non-Windows Ian Lynagh **20080130114640] [Fixed warnings in main/ErrUtils Twan van Laarhoven **20080127015419] [Fixed warnings in main/HeaderInfo, except for incomplete pattern matches Twan van Laarhoven **20080127014118] [Fixed warnings in main/DynFlags Twan van Laarhoven **20080127012443] [Fixed warnings in hsSyn/HsSyn Twan van Laarhoven **20080127004626] [Fixed warnings in hsSyn/HsUtils Twan van Laarhoven **20080127004506] [Fixed warnings in hsSyn/HsTypes Twan van Laarhoven **20080127004419] [Fixed warnings in hsSyn/HsDoc Twan van Laarhoven **20080127004359] [Fixed warnings in hsSyn/HsLit Twan van Laarhoven **20080127004330] [Fixed warnings in hsSyn/HsImpExp, except for incomplete pattern matches Twan van Laarhoven **20080127004254] [Fixed warnings in hsSyn/HsPat, except for incomplete pattern matches Twan van Laarhoven **20080127004209] [Fixed warnings in hsSyn/HsBinds, except for incomplete pattern matches Twan van Laarhoven **20080127004119] [Fixed warnings in hsSyn/HsDecls, except for incomplete pattern matches Twan van Laarhoven **20080127004046] [Fixed warnings in simplCore/CSE Twan van Laarhoven **20080126233918] [Fixed warnings in profiling/CostCentre, except for incomplete pattern matches Twan van Laarhoven **20080126232841] [Fixed warnings in types/InstEnv Twan van Laarhoven **20080126231732] [Fixed warnings in types/FamInstEnv Twan van Laarhoven **20080126231426] [Fixed warnings in simplStg/SRT, except for incomplete pattern matches Twan van Laarhoven **20080126230900] [Fixed warnings in simplStg/StgStats, except for incomplete pattern matches Twan van Laarhoven **20080126230830] [Fixed warnings in simplStg/SimplStg Twan van Laarhoven **20080126230805] [Fixed warnings in vectorise/VectUtils Twan van Laarhoven **20080126223033] [Fixed warnings in types/Generics Twan van Laarhoven **20080126222817] [Fixed warnings in stgSyn/StgSyn Twan van Laarhoven **20080126221010] [Fixed warnings in types/TyCon Twan van Laarhoven **20080126215800] [Fixed warnings in types/Type, except for incomplete pattern matches Twan van Laarhoven **20080126214126] [Fixed warnings in types/TypeRep Twan van Laarhoven **20080126211722] [Fixed warnings in types/FunDeps Twan van Laarhoven **20080126203050] [Fixed warnings in basicTypes/OccName Twan van Laarhoven **20080126202737] [Fixed warnings in basicTypes/RdrName Twan van Laarhoven **20080126202104] [Fixed warnings in utils/Encoding Twan van Laarhoven **20080126201235] [Fixed warnings in utils/Digraph Twan van Laarhoven **20080126200754] [Fixed warnings in basicTypes/Demand Twan van Laarhoven **20080126195929] [Fixed warnings in basicTypes/Unique Twan van Laarhoven **20080126195459] [Fixed warnings in coreSyn/ExternalCore Twan van Laarhoven **20080126194759] [Fixed warnings in simplCore/OccurAnal Twan van Laarhoven **20080126194426] [Fixed warnings in basicTypes/BasicTypes Twan van Laarhoven **20080126194255] [Fixed warnings in basicTypes/Literal, except for incomplete pattern matches Twan van Laarhoven **20080126193209] [Fixed warnings in basicTypes/Id Twan van Laarhoven **20080126192817] [Fixed warnings in basicTypes/Var Twan van Laarhoven **20080126191939] [Fixed warnings in basicTypes/Name Twan van Laarhoven **20080126191501] [Fixed warnings in types/Coercion, except for incomplete pattern matches Twan van Laarhoven **20080126190735] [Fixed warnings in coreSyn/MkExternalCore, except for incomplete pattern matches Twan van Laarhoven **20080126012807] [Fixed warnings in coreSyn/PprExternalCore Twan van Laarhoven **20080125162418] [Fixed warnings in coreSyn/CoreUtils, except for incomplete pattern matches Twan van Laarhoven **20080125161800] [Fixed warnings in coreSyn/CoreUnfold Twan van Laarhoven **20080125161308] [Fixed warnings in coreSyn/CorePrep Twan van Laarhoven **20080125161051] [Fixed warnings in coreSyn/CoreSubst Twan van Laarhoven **20080125161002] [Fixed warnings in coreSyn/CoreLint Twan van Laarhoven **20080125160809] [Fixed warnings in coreSyn/CoreFVs, except for incomplete pattern matches Twan van Laarhoven **20080125160716] [Fixed warnings in types/Class Twan van Laarhoven **20080125160438] [Fix warnings in coreSyn/CoreTidy Twan van Laarhoven **20080118165559] [Fix warnings in coreSyn/CoreSyn Twan van Laarhoven **20080118165506] [Strictness tweaks Ian Lynagh **20080125174347] [Parser tweak Ian Lynagh **20080125145847] [A couple more parser tweaks Ian Lynagh **20080125143421] [Make comb[234] strict Ian Lynagh **20080124183149] [Strictness tweaks Ian Lynagh **20080124183142] [Tell happy to be strict Ian Lynagh **20080124165214] [Make the Parser Monad's return strict Ian Lynagh **20080124155827] [Get a bit of sharing Ian Lynagh **20080124152000] [Make sL strict in /both/ arguments to L Ian Lynagh **20080124151223] [A touch more strictness in the parser Ian Lynagh **20080124150137] [Add a bit of strictness to the parser Ian Lynagh **20080124145311] [Use nilFS Ian Lynagh **20080123211917] [Whitespace only Ian Lynagh **20080123174153] [Fix #2062: foldr1 problem in hpc tool andy@galois.com**20080126210607] [Fix do-notation so that it works with -DDEBUG simonpj@microsoft.com**20080125163101] [Fix the build Ian Lynagh **20080124141800 Work around various problems caused by some of the monadification patches not being applied. ] [Replace ioToTcRn with liftIO Twan van Laarhoven **20080117220553] [Remove unused custom versions of monad combinators from IOEnv Twan van Laarhoven **20080117215835] [Remove unused custom versions of monad combinators from UniqSupply Twan van Laarhoven **20080117215752] [Replace remaining uses of ioToIOEnv by liftIO, remove ioToIOEnv Twan van Laarhoven **20080117215233] [Monadify iface/BuildTyCl: use return Twan van Laarhoven **20080117215036] [Monadify iface/TcIface: use do, return, applicative, standard monad functions Twan van Laarhoven **20080117214938] [Monadify iface/MkIface: use do, return and standard monad functions Twan van Laarhoven **20080117214441] [Monadify iface/LoadIface: use return and liftIO Twan van Laarhoven **20080117214233] [Monadify iface/IfaceEnv: use do, return and standard monad functions Twan van Laarhoven **20080117214041] [Monadify typecheck/TcRnMonad: use return, standard monad functions and liftIO Twan van Laarhoven **20080117213850] [Monadify typecheck/TcEnv: use do, return, applicative, standard monad functions Twan van Laarhoven **20080117213636] [Monadify typecheck/TcRnDriver: use return and standard monad functions Twan van Laarhoven **20080117213352] [Monadify typecheck/TcMatches: use return and standard monad functions Twan van Laarhoven **20080117213307] [Monadify typecheck/TcMType: use do, return, applicative, standard monad functions Twan van Laarhoven **20080117213242] [Monadify typecheck/TcInstDcls: use do, return and standard monad functions Twan van Laarhoven **20080117213040] [Monadify typecheck/TcHsType: use do, return and standard monad functions Twan van Laarhoven **20080117212822] [Monadify typecheck/TcSimplify: use do, return and standard monad functions Twan van Laarhoven **20080117212200] [Monadify typecheck/TcSplice: use do and return Twan van Laarhoven **20080117211911] [Monadify typecheck/TcTyClsDecls: use return and standard monad functions Twan van Laarhoven **20080117211746] [Monadify typecheck/TcDefaults: use return and standard monad functions Twan van Laarhoven **20080117211558] [Monadify typecheck/TcDeriv: use return Twan van Laarhoven **20080117211507] [Monadify typecheck/TcClassDcl: use do, return and standard monad functions Twan van Laarhoven **20080117211439] [Monadify typecheck/TcBinds: use do, return and standard monad functions Twan van Laarhoven **20080117211035] [Monadify typecheck/TcArrows: use do and return Twan van Laarhoven **20080117210818] [Monadify typecheck/Inst: use do, return and standard monad functions Twan van Laarhoven **20080117210655] [Monadify typecheck/TcUnify: use do, return and standard monad functions Twan van Laarhoven **20080117210213 there may be some accidental tab->space conversion ] [Monadify typecheck/TcTyFuns: use standard monad functions Twan van Laarhoven **20080117205505] [Monadify typecheck/TcPat: use return and standard monad functions Twan van Laarhoven **20080117205423] [Monadify typecheck/TcRules: use do, return and standard monad functions Twan van Laarhoven **20080117205307] [Monadify typecheck/TcForeign: use do, return and standard monad functions Twan van Laarhoven **20080117204934] [Monadify typecheck/TcExpr: use do, return and standard monad functions Twan van Laarhoven **20080117204603] [Monadify specialise/Specialise: use do, return, standard monad functions and MonadUnique Twan van Laarhoven **20080117204330] [Monadify specialise/SpecConstr: use do, return and standard monad functions Twan van Laarhoven **20080117203842] [Monadify stgSyn/StgLint Twan van Laarhoven **20080117203042 - made LintM a newtype instead of a type synonym - use do, return and standard monad functions - use MaybeT where `thenMaybeL` was used - removed custom versions of monad functions ] [Monadify stgSyn/CoreToStg Twan van Laarhoven **20080117202619 - made LneM a newtype instead of a type synonym - use do, return and standard monad functions - removed custom versions of monad functions ] [Remove generic monad function from State, it was moved to MonadUtils Twan van Laarhoven **20080117202144] [Added MaybeT monad transformer to utils/Maybes Twan van Laarhoven **20080117202051] [Removed unused Maybe functions, use the standard Maybe monad instead Twan van Laarhoven **20080117201953] [MonadIO instance for IOEnv Twan van Laarhoven **20080117201812] [Monadify simplCore/SimplMonad: custom monad functions are no longer needed Twan van Laarhoven **20080117200354] [Monadify simplCore/SimplMonad: use MonadUnique instance instead of custom functions Twan van Laarhoven **20080117200228] [Monadify simplCore/SetLevels: use do, return, standard monad functions and MonadUnique Twan van Laarhoven **20080117195958] [Monadify simplCore/SimplUtils: use do, return, standard monad functions and MonadUnique Twan van Laarhoven **20080117195625] [Monadify simplCore/Simplify: use do and return Twan van Laarhoven **20080117195408] [Monadify simplCore/SimplEnv: use standard monad functions Twan van Laarhoven **20080117195255] [Monadify simplCore/SimplCore: use do, return and standard monad functions Twan van Laarhoven **20080117195149] [Monadify profiling/SCCfinal Twan van Laarhoven **20080117194417 - change monad type synonym into a newtype - use do, return and standard monad functions ] [Monadify coreSyn/CorePrep: use do, return, applicative, standard monad functions Twan van Laarhoven **20080117193154] [Monadify rename/RnTypes: use do, return and standard monad functions Twan van Laarhoven **20080117190823] [Monadify rename/RnPat: use do, return and standard monad functions Twan van Laarhoven **20080117190033] [Monadify rename/RnNames: use return and standard monad functions Twan van Laarhoven **20080117185837] [seqMaybe is more commonly known as mplus Twan van Laarhoven **20080117185330] [Monadify rename/RnBinds: use do, return and standard monad functions Twan van Laarhoven **20080117184354] [Monadify stranal/StrictAnal: use the State monad instead of a custom thing Twan van Laarhoven **20080117180449] [Monadify stranal/WwLib: use do, return, applicative, standard monad functions Twan van Laarhoven **20080117180022] [Added MonadUnique class for monads that have a unique supply Twan van Laarhoven **20080117175616] [Monadify stranal/WorkWrap: use do, return, applicative, standard monad functions Twan van Laarhoven **20080117175007] [Added Applicative and Functor instances for State monad Twan van Laarhoven **20080117174656] [Monadify deSugar/DsMonad: use do, return, applicative, standard monad functions Twan van Laarhoven **20080117174432] [Monadify deSugar/Desugar: use do, return, applicative, standard monad functions Twan van Laarhoven **20080117174130] [Monadify deSugar/DsUtils: use do, return, applicative, standard monad functions Twan van Laarhoven **20080117173856] [Monadify deSugar/DsListComp: use do, return, applicative, standard monad functions Twan van Laarhoven **20080117173205] [Monadify deSugar/DsForeign: use do, return, applicative, standard monad functions Twan van Laarhoven **20080117172843] [Monadify deSugar/DsGRHSs: use do, return, applicative, standard monad functions Twan van Laarhoven **20080117172228] [Monadify deSugar/DsExpr: use do, return, applicative, standard monad functions Twan van Laarhoven **20080117164055] [Added Applicative instance for IOEnv Twan van Laarhoven **20080117162644] [Add 'util/MonadUtils.hs' with common monad (and applicative) combinators Twan van Laarhoven **20080117161939] [Monadify deSugar/MatchLit: use do, return, applicative, standard monad functions Twan van Laarhoven **20080117173439] [Monadify deSugar/Match: use do, return, applicative, standard monad functions Twan van Laarhoven **20080117173336] [Monadify deSugar/DsCCall: use do, return, applicative, standard monad functions Twan van Laarhoven **20080117165334] [Monadify deSugar/DsArrows: use do, return, applicative, standard monad functions Twan van Laarhoven **20080117165114] [Monadify deSugar/DsBinds: use do, return, applicative, standard monad functions Twan van Laarhoven **20080117164746] [Added MASSERT macro for assertions in do notation Twan van Laarhoven **20080117163112] [Some tweaks to the building from source section Simon Marlow **20080129091132] [FIX BUILD wrong imports on non-Windows Simon Marlow **20080124092935] [Windows now doesn't need different values for DQ in the build system Ian Lynagh **20080123173933] [Fix setting argv[0] in shell-utils.c on Windows Ian Lynagh **20080123160139] [Escape arguments for Windows in shell-tools.c Ian Lynagh **20080123151724] [Attach the INLINE Activation pragma to any automatically-generated specialisations simonpj@microsoft.com**20080123134012 Another idea suggested by Roman, happily involving a one-line change. Here's the new Note in Specialise: Note [Auto-specialisation and RULES] ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Consider: g :: Num a => a -> a g = ... f :: (Int -> Int) -> Int f w = ... {-# RULE f g = 0 #-} Suppose that auto-specialisation makes a specialised version of g::Int->Int That version won't appear in the LHS of the RULE for f. So if the specialisation rule fires too early, the rule for f may never fire. It might be possible to add new rules, to "complete" the rewrite system. Thus when adding RULE forall d. g Int d = g_spec also add RULE f g_spec = 0 But that's a bit complicated. For now we ask the programmer's help, by *copying the INLINE activation pragma* to the auto-specialised rule. So if g says {-# NOINLINE[2] g #-}, then the auto-spec rule will also not be active until phase 2. ] [Tidy up the treatment of SPECIALISE pragmas simonpj@microsoft.com**20080122122613 Remove the now-redundant "const-dicts" field in SpecPrag In dsBinds, abstract over constant dictionaries in the RULE. This avoids the creation of a redundant, duplicate, rule later in the Specialise pass, which was happening before. There should be no effect on performance either way, just less duplicated code, and the compiler gets a little simpler. ] [Comments only simonpj@microsoft.com**20080122122547] [FIX #1838, #1987: change where GHCi searches for config files Simon Marlow **20080123143207 6.6 behaviour: - ./.ghci - $HOME/.ghci 6.8.[12] behaviour: - ./.ghci - Windows: c:/Documents and Settings//.ghci - Unix: $HOME/.ghci 6.10 (and 6.8.3 when this is merged): - ./.ghci - Windows: c:/Documents and Settings//Application Data/ghc/ghci.conf - Unix: $HOME/.ghc/ghci.conf - $HOME/.ghci We will need to document this in the 6.8.3 release notes because it may affect Windows users who have adapted their setup to 6.8.[12]. ] [Show CmdLineError exceptions as ": ..." Simon Marlow **20080123163145 instead of something like "ghc-6.8.2: ...", which causes problems in the test suite. In any case, "" seems a more appropriate context for these errors, the only question is whether we're using CmdLineError incorrectly anywhere. ] [FIX #1750: in isBrokenPackage, don't loop if the deps are recursive Simon Marlow **20080123160703] [FIX #1750: throw out mutually recursive groups of packages Simon Marlow **20080123160635] [This goes with the patch for #1839, #1463 Simon Marlow **20080122161811] [use pathSeparator instead of '/' Simon Marlow **20080122140957] [cleanup only Simon Marlow **20080122132047] [FIX #1839, #1463, by supporting ghc-pkg bulk queries with substring matching claus.reinke@talk21.com**20080121161744 - #1839 asks for a ghc-pkg dump feature, #1463 for the ability to query the same fields in several packages at once. - this patch enables substring matching for packages in 'list', 'describe', and 'field', and for modules in find-module. it also allows for comma-separated multiple fields in 'field'. substring matching can optionally ignore cases to avoid the rather unpredictable capitalisation of packages. - the patch is not quite as full-featured as the one attached to #1839, but avoids the additional dependency on regexps. open ended substrings are indicated by '*' (only the three forms prefix*, *suffix, *infix* are supported) - on windows, the use of '*' for package/module name globbing leads to conflicts with filename globbing: by default, windows programs are self-globbing, and bash adds another level of globbing on top of that. it seems impossible to escape '*' from both levels of globbing, so we disable default globbing for ghc-pkg and ghc-pkg-inplace. users of bash will still have filename globbing available, users of cmd won't. - if it is considered necessary to reenable filename globbing for cmd users, it should be done selectively, only for filename parameters. to this end, the patch includes a glob.hs program which simply echoes its parameters after filename globbing. see the commented out glob command in Main.hs for usage or testing. - this covers both tickets, and permits for the most common query patterns (finding all packages contributing to the System. hierarchy, finding all regex or string packages, listing all package maintainers or haddock directories, ..), which not only i have wanted to have for a long time. examples (the quotes are needed to escape shell-based filename globbing and should be omitted in cmd.exe): ghc-pkg list '*regex*' --ignore-case ghc-pkg list '*string*' --ignore-case ghc-pkg list '*gl*' --ignore-case ghc-pkg find-module 'Data.*' ghc-pkg find-module '*Monad*' ghc-pkg field '*' name,maintainer ghc-pkg field '*' haddock-html ghc-pkg describe '*' ] [Wibble to the OccurAnal fix for RULEs and loop-breakers simonpj@microsoft.com**20080121165529] [Do not worker/wrapper INLINE things, even if they are in a recursive group simonpj@microsoft.com**20080121135909 This patch stops the worker/wrapper transform working on an INLINE thing, even if it's in a recursive group. It might not be the loop breaker. Indeed a recursive group might have no loop breaker, if the only recursion is through rules. Again, this change was provoked by one of Roman's NDP libraries. Specifically the Rec { splitD, splitJoinD } group in Data.Array.Parallel.Unlifted.Distributed.Arrays Simon ] [Make the loop-breaking algorithm a bit more liberal, where RULES are involved simonpj@microsoft.com**20080121135654 This is another gloss on the now-quite-subtle and heavily-documented algorithm for choosing loop breakers. This fix, provoked by Roman's NDP library, makes sure that when we are choosing a loop breaker we only take into account variables free on the *rhs* of a rule not the *lhs*. Most of the new lines are comments! ] [Fix Trac #2055 simonpj@microsoft.com**20080121124244 Sorry, this was my fault, a consequence of the quasi-quoting patch. I've added rn062 as a test. ] [Fix exception message with ghc -e Ian Lynagh **20080121104142 When running with ghc -e, exceptions should claim to be from the program that we are running, not ghc. ] [Fix warnings in main/CmdLineParser Ian Lynagh **20080121103158] [Normalise FilePaths before printing them Ian Lynagh **20080120193002] [Tweak runghc Ian Lynagh **20080120184639] [Fix catching exit exceptions in ghc -e Ian Lynagh **20080120170236] [FIX #1767 :show documentation claimed too much Simon Marlow **20080122152943 Also put the :help docs back within 80 columns ] [fix syntax-error output for :show Simon Marlow **20080122144923] [Typo in phase-control documentation simonpj@microsoft.com**20080121113620] [FIX #2049, another problem with the module context on :reload Simon Marlow **20080121145935 The previous attempt to fix this (#1873, #1360) left a problem that occurred when the first :load of the program failed (#2049). Now I've implemented a different strategy: between :loads, we remember all the :module commands, and just replay them after a :reload. This is in addition to remembering all the package modules added with :module, which is orthogonal. This approach is simpler than the previous one, and seems to do the right thing in all the cases I could think of. Let's hope this is the last bug in this series... ] [Increase the bar for bootstrapping GHC to 6.4 (HEAD only) Simon Marlow **20080121111835 - remove $(ghc_ge_601), $(ghc_ge_602), $(ghc_ge_603) - configure now checks the GHC version number - there are probably various cleanups that we can now do in compat/ and compiler/, but I haven't done those yet. ] [Fix warnings in main/Main Ian Lynagh **20080119235914] [Support multiple -e flags Ian Lynagh **20080119223036] [Fix ghc -e :main (it was enqueuing the main function, but not running it) Ian Lynagh **20080119220044] [Fix whitespace Ian Lynagh **20080119212830] [Fix giving an error if we are given conflicting mode flags Ian Lynagh **20080119212602] [Add :run and tweak :main Ian Lynagh **20080119164923 You can now give :main a Haskell [String] as an argument, e.g. :main ["foo", "bar"] and :run is a variant that takes the name of the function to run. Also, :main now obeys the -main-is flag. ] [Make MacFrameworks a subdirectory of distrib, since it isn't used in the normal building process. judah.jacobson@gmail.com**20071217235735] [Add scripts for building GMP.framework and GNUreadline.framework (OS X). judah.jacobson@gmail.com**20071127072951] [Use -framework-path flags during the cc phase. Fixes trac #1975. judah.jacobson@gmail.com**20071212201245] [FIX #1821 (Parser or lexer mess-up) df@dfranke.us**20071210230649] [Improve the error when :list can't find any code to show Ian Lynagh **20080118225655] [Fix imports when !DEBUG Ian Lynagh **20080118180126] [Tweak the splitter Ian Lynagh **20080116195612 We were generating a label ".LnLC7", which the splitter was confusing with a literal constant (LC). The end result was the assembler tripping up on ".Ln.text". ] [Wibble to SetLevels.abstractVars simonpj@microsoft.com**20080118171754 I've gotten this wrong more than once. Hopefully this has it nailed. The issue is that in float-out we must abstract over the correct variables. ] [Add quasi-quotation, courtesy of Geoffrey Mainland simonpj@microsoft.com**20080118145503 This patch adds quasi-quotation, as described in "Nice to be Quoted: Quasiquoting for Haskell" (Geoffrey Mainland, Haskell Workshop 2007) Implemented by Geoffrey and polished by Simon. Overview ~~~~~~~~ The syntax for quasiquotation is very similar to the existing Template haskell syntax: [$q| stuff |] where 'q' is the "quoter". This syntax differs from the paper, by using a '$' rather than ':', to avoid clashing with parallel array comprehensions. The "quoter" is a value of type Language.Haskell.TH.Quote.QuasiQuoter, which contains two functions for quoting expressions and patterns, respectively. quote = Language.Haskell.TH.Quote.QuasiQuoter quoteExp quotePat quoteExp :: String -> Language.Haskell.TH.ExpQ quotePat :: String -> Language.Haskell.TH.PatQ TEXT is passed unmodified to the quoter. The context of the quasiquotation statement determines which of the two quoters is called: if the quasiquotation occurs in an expression context, quoteExp is called, and if it occurs in a pattern context, quotePat is called. The result of running the quoter on its arguments is spliced into the program using Template Haskell's existing mechanisms for splicing in code. Note that although Template Haskell does not support pattern brackets, with this patch binding occurrences of variables in patterns are supported. Quoters must also obey the same stage restrictions as Template Haskell; in particular, in this example quote may not be defined in the module where it is used as a quasiquoter, but must be imported from another module. Points to notice ~~~~~~~~~~~~~~~~ * The whole thing is enabled with the flag -XQuasiQuotes * There is an accompanying patch to the template-haskell library. This involves one interface change: currentModule :: Q String is replaced by location :: Q Loc where Loc is a data type defined in TH.Syntax thus: data Loc = Loc { loc_filename :: String , loc_package :: String , loc_module :: String , loc_start :: CharPos , loc_end :: CharPos } type CharPos = (Int, Int) -- Line and character position So you get a lot more info from 'location' than from 'currentModule'. The location you get is the location of the splice. This works in Template Haskell too of course, and lets a TH program generate much better error messages. * There's also a new module in the template-haskell package called Language.Haskell.TH.Quote, which contains support code for the quasi-quoting feature. * Quasi-quote splices are run *in the renamer* because they can build *patterns* and hence the renamer needs to see the output of running the splice. This involved a bit of rejigging in the renamer, especially concerning the reporting of duplicate or shadowed names. (In fact I found and removed a few calls to checkDupNames in RnSource that are redundant, becuase top-level duplicate decls are handled in RnNames.) ] [lots of portability changes (#1405) Isaac Dupree **20080117011312 re-recording to avoid new conflicts was too hard, so I just put it all in one big patch :-( (besides, some of the changes depended on each other.) Here are what the component patches were: Fri Dec 28 11:02:55 EST 2007 Isaac Dupree * document BreakArray better Fri Dec 28 11:39:22 EST 2007 Isaac Dupree * properly ifdef BreakArray for GHCI Fri Jan 4 13:50:41 EST 2008 Isaac Dupree * change ifs on __GLASGOW_HASKELL__ to account for... (#1405) for it not being defined. I assume it being undefined implies a compiler with relatively modern libraries but without most unportable glasgow extensions. Fri Jan 4 14:21:21 EST 2008 Isaac Dupree * MyEither-->EitherString to allow Haskell98 instance Fri Jan 4 16:13:29 EST 2008 Isaac Dupree * re-portabilize Pretty, and corresponding changes Fri Jan 4 17:19:55 EST 2008 Isaac Dupree * Augment FastTypes to be much more complete Fri Jan 4 20:14:19 EST 2008 Isaac Dupree * use FastFunctions, cleanup FastString slightly Fri Jan 4 21:00:22 EST 2008 Isaac Dupree * Massive de-"#", mostly Int# --> FastInt (#1405) Fri Jan 4 21:02:49 EST 2008 Isaac Dupree * miscellaneous unnecessary-extension-removal Sat Jan 5 19:30:13 EST 2008 Isaac Dupree * add FastFunctions ] [Add missing extendSubst simonpj@microsoft.com**20080117180227 Oops -- missed this from previous commit; sorry ] [Add -fspec-inline-join-points to SpecConstr simonpj@microsoft.com**20080117150325 This patch addresses a problem that Roman found in SpecConstr. Consider: foo :: Maybe Int -> Maybe Int -> Int foo a b = let j b = foo a b in case b of Nothing -> ... Just n -> case a of Just m -> ... j (Just (n+1)) ... Nothing -> ... j (Just (n-1)) ... We want to make specialised versions for 'foo' for the patterns Nothing (Just v) (Just a) (Just b) Two problems, caused by the join point j. First, j does not scrutinise b, so j won't be specialised f for the (Just v) pattern. Second, j is defined where the free var 'a' is not evaluated. Both are solved by brutally inlining j at its call sites. This risks major code bloat, but it's relatively quick to implement. The flag -fspec-inline-join-points causes brutal inlining for a non-recursive binding of a function whose RHS contains calls of a recursive function The (experimental) flag is static for now, and I have not even documented it properly. ] [Fix references to Filepath Clemens Fruhwirth **20080117134139] [Fix egregious error in earlier "Record evaluated-ness" patch simonpj@microsoft.com**20080117134057] [Eliminate warnings with -DDEBUG simonpj@microsoft.com**20080117124921] [Record evaluated-ness information correctly for strict constructors simonpj@microsoft.com**20080117105256 The add_evals code in Simplify.simplAlt had bit-rotted. Example: data T a = T !a data U a = U !a foo :: T a -> U a foo (T x) = U x Here we should not evaluate x before building the U result, because the x argument of T is already evaluated. Thanks to Roman for finding this. ] [In float-out, make sure we abstract over the type variables in the kind of a coercion simonpj@microsoft.com**20080116153908 I can't remember where this bug showed up, but we were abstracting over a coercion variable (co :: a ~ T), without also abstracting over 'a'. The fix is simple. ] [Fix broken debug warning simonpj@microsoft.com**20080116151818] [Complain sensibly if you try to use scoped type variables in Template Haskell simonpj@microsoft.com**20080116151612 This fixes Trac #2024; worth merging onto 6.8 branch. ] [Comments only simonpj@microsoft.com**20080116150554] [Extra instance for Outputable on 5-tuples simonpj@microsoft.com**20080116150525] [Fix the -frule-check pass simonpj@microsoft.com**20080116141156 Rules for imported things are now kept in the global rule base, not attached to the global Id. The rule-check pass hadn't kept up. This should fix it. ] [Add dyn-wrapper.c used as cross-plattform launch wrapper for executables using dynamic libraries in non-standard places Clemens Fruhwirth **20080116220603] [Use runPhase_MoveBinary also for generating a dynamic library wrapper Clemens Fruhwirth **20080116220420] [Remove -fhardwire-lib-paths in favour of -dynload sysdep Clemens Fruhwirth **20080110121736] [ghc-inplace defaults to -fhardwire-lib-paths. Change that to -dynload wrapped Clemens Fruhwirth **20080110090839] [Add -dynload flag as dynamic flag. Clemens Fruhwirth **20080116205710] [Add a missing import Ian Lynagh **20080116174149] [Fix Makefile generatin on Windows Ian Lynagh **20080116162752] [Fix slash direction on Windows with the new filePath code Ian Lynagh **20080116154317] [Fix typo Ian Lynagh **20080116011953] [The Core type-matcher should look through PredTypes simonpj@microsoft.com**20080116145939 The core type-matcher Unify.match was previouly using tcView to expand types, because it must treat newtypes as distinct from their representation. But that meant that it also treated the PredType {C Int} as distinct from its representation type (:TC Int). And that in turn was causing a rule not to fire, because the argument types didn't match up. For this to happen we need to get a situation where we have a = :DC blah blah -- Dictionary ....(f a)..... Now a has type (:TC Int), bu the RULE for f expects an argument of type {C Int}. Roman found that just this was happening. ] [A bottoming function should have infinite arity simonpj@microsoft.com**20080116145722 I can't think how this one escaped for so long, but (error "foo") should have arityType ABot, just as 'error' itself does. This improves eta expansion. I spotted it when looking at the function Data.Array.Parallel.Arr.BBArr.writeMBB in the ndp package. ] [Add Main.dyn_o deployed into the RTS library dir to linking (see DLLNOTES for rational) Clemens Fruhwirth **20080110091217] [Refactor cross-plattform process spawning from ghc-inplace into shell-tools.c Clemens Fruhwirth **20080110090721] [More verbose error reporting in mk/target.mk Clemens Fruhwirth **20071231170715] [Fix generating dependencies for different ways now we use FilePath Ian Lynagh **20080115204716 We were making filenames like dist/build/GHC/Base.p_.o rather than dist/build/GHC/Base.p_o ] [Fix utils/Util for debug build mainland@eecs.harvard.edu**20080114190530] [Give an error if view pattern syntax is used in an expression; fixes #2033 Ian Lynagh **20080114115031] [FIX BUILD (Solaris): include fcntl.h for file operations Roman Leshchinskiy **20080115051844] [Fix warning when USE_READLINE is unset Manuel M T Chakravarty **20080115015014] [Remove an extra ) that was breaking the build on Windows Ian Lynagh **20080114103953] [Fix warnings in utils/ListSetOps Ian Lynagh **20080113150017] [Fix warnings in utils/Panic Ian Lynagh **20080113142939] [Fix warnings in utils/UniqSet Ian Lynagh **20080113142604] [Fix warnings in utils/Maybes Ian Lynagh **20080113142347] [Fix warnings in utils/BufWrite Ian Lynagh **20080113141630] [Fix warnings in utils/FastTypes Ian Lynagh **20080113141612 Split off a FastBool module, to avoid a circular import with Panic ] [Fix warnings in utils/OrdList Ian Lynagh **20080113132042] [Fix warnings in utils/FastMutInt Ian Lynagh **20080113131830] [Fix warnings in utils/State Ian Lynagh **20080113131658] [Only initialise readline if we are connected to a terminal Ian Lynagh **20080113124107 Patch from Bertram Felgenhauer ] [Fix warnings in utils/Util Ian Lynagh **20080113005832] [Fix warnings in utils/Bag.lhs Ian Lynagh **20080113002037] [Add GMP_INCLUDE_DIRS in a couple of places Ian Lynagh **20080112234215 Fixes the build on OpenBSD (trac #2009). Based on a patch from kili. ] [Tweak whitespace in HsExpr Ian Lynagh **20080112185753] [Fix warnings in HsExpr Ian Lynagh **20080112181444] [FilePath fixes Ian Lynagh **20080112172837] [don't initialize readline needlessly Ian Lynagh **20080112155413 Readline.initialize spills some escape sequences to stdout for some terminal types, potentially spoiling ghc -e output. So don't initialize readline unless we're working interactively on a terminal. Patch from Bertram Felgenhauer ] [Fix whitespace Ian Lynagh **20080112155214] [Use System.FilePath Ian Lynagh **20080112154459] [Fix 2030: make -XScopedTypeVariables imply -XRelaxedPolyRec simonpj@microsoft.com**20080110113133 The type checker doesn't support lexically scoped type variables unless we are using the RelaxedPolyRec option. Reasons: see Note [Scoped tyvars] in TcBinds. So I've changed DynFlags to add this implication, improved the documentation, and simplified the code in TcBinds somewhat. (It's longer but only because of comments!) ] [Fix filename completion by adding trailing spaces/slashes manually. judah.jacobson@gmail.com**20080110221928] [Use command-dependent word break characters for tab completion in ghci. Fixes bug #998. judah.jacobson@gmail.com**20080109003606] [More refactoring in getCoreToDo Roman Leshchinskiy **20080109023747] [Document -fsimplifier-phases Roman Leshchinskiy **20080109022822] [Add -fsimplifier-phases option Roman Leshchinskiy **20080109022449 It controls the number of simplifier phases run during optimisation. These are numbered from n to 1 (by default, n=2). Phase 0 is always run regardless of this flag. The flag is ignored with -O0 since (practically) no optimisation is performed in that case. ] [Refactor getCoreToDo slightly Roman Leshchinskiy **20080109014359] [Fix Trac #2018: float-out was ignoring the kind of a coercion variable simonpj@microsoft.com**20080107142601 The float-out transformation must handle the case where a coercion variable is free, which in turn mentions type variables in its kind. Just like a term variable really. I did a bit of refactoring at the same time. Test is tc241 MERGE to stable branch ] [Make the treatment of equalities more uniform simonpj@microsoft.com**20080107142306 This patch (which is part of the fix for Trac #2018) makes coercion variables be handled more uniformly. Generally, they are treated like dictionaries in the type checker, not like type variables, but in a couple of places we were treating them like type variables. Also when zonking we should use zonkDictBndr not zonkIdBndr. ] [Fix Trac #2017 simonpj@microsoft.com**20080107125819] [Add -XImpredicativeTypes, and tighten up type-validity checking (cf Trac 2019) simonpj@microsoft.com**20080107115451 Somehow we didn't have a separate flag for impredicativity; now we do. Furthermore, Trac #2019 showed up a missing test for monotypes in data constructor return types. And I realised that we were even allowing things like Num (forall a. a) => ... which we definitely should not. This patch insists on monotypes in several places where we were (wrongly) too liberal before. Could be merged to 6.8 but no big deal. ] [Fix build: Recent instance shuffling left us with overlapping instances Ian Lynagh **20080106221547] [Add instructions for building docs to README Ian Lynagh **20080106215723] [pass -no-user-package-conf to ghc-inplace Simon Marlow **20080104162840] [A little refactoring of GenIfaceEq to make the Outputable instance into H98 simonpj@microsoft.com**20080104105450] [Make the instance of DebugNodes more H98-like simonpj@microsoft.com**20080104105409] [change CmmActual, CmmFormal to use a data CmmHinted rather than tuple (#1405) Isaac Dupree **20080104105339 This allows the instance of UserOfLocalRegs to be within Haskell98, and IMHO makes the code a little cleaner generally. This is one small (though tedious) step towards making GHC's code more portable... ] [generalize instance Outputable GenCmm to H98 (#1405) Isaac Dupree **20071226175915] [move and generalize another instance (#1405) Isaac Dupree **20071226174904 was instance Outputable CmmGraph type CmmGraph = LGraph Middle Last now instance (ctx) => Outputable (LGraph m l), in module with LGraph where it belongs This also let us reduce the context of DebugNodes to Haskell98, leaving that class's only extension being multi-parameter. (also Outputable (LGraph M Last) with M = ExtendWithSpills Middle was another redundant instance that was then removed) ] [move and generalize an instance (#1405) Isaac Dupree **20071226171913 UserOfLocalRegs (ZLast Last) isn't Haskell98, but it was just as good an instance to be UserOfLocalRegs a => UserOfLocalRegs (ZLast a) ] [Do not consult -XGADTs flag when pattern matching on GADTs simonpj@microsoft.com**20080104125814 See Trac #2004, and Note [Flags and equational constraints] in TcPat. ] [Add a note about primop wrappers (cf Trac #1509) simonpj@microsoft.com**20080104125305] [Document SOURCE pragma; clarify TH behavior for mutually-recurive modules (Trac #1012) simonpj@microsoft.com**20080104121939] [White space and comments only simonpj@microsoft.com**20080104102236] [Remove -funfolding-update-in-place flag documentation simonpj@microsoft.com**20080103160036 This flag does nothing, and should have been removed ages ago. (GHC no longer does update-in-place.) MERGE to 6.8 branch ] [Optionally use libffi to implement 'foreign import "wrapper"' (#793) Simon Marlow **20080103170236 To enable this, set UseLibFFI=YES in mk/build.mk. The main advantage here is that this reduces the porting effort for new platforms: libffi works on more architectures than our current adjustor code, and it is probably more heavily tested. We could potentially replace our existing code, but since it is probably faster than libffi (just a guess, I'll measure later) and is already working, it doesn't seem worthwhile. Right now, you must have libffi installed on your system. I used the one supplied by Debian/Ubuntu. ] [remove trace apparently left in by accident Simon Marlow **20080103163805] [Fix warnings with newer gcc versions (I hope) Simon Marlow **20080103140338] [implement prefix unboxed tuples (part of #1509) Isaac Dupree **20080102124001] [FIX #1898: add a missing UNTAG_CLOSURE() in checkBlackHoles Simon Marlow **20080103112717] [fix validation failure on non-i386 Simon Marlow **20080102151740] [expand "out of stack slots" panic to suggest using -fregs-graph, see #1993 Simon Marlow **20080102150737] [Warning clean, and fix compilation with GHC 6.2.x Simon Marlow **20080102114529] [Link libgmp.a statically into libHSrts.dll on Windows Clemens Fruhwirth **20080101154017] [Embedd DLL name into its import library, so client libs reference them properly in .idata Clemens Fruhwirth **20080101152157] [Add package dependencies to link pass when building ghc package (required for windows DLL build) Clemens Fruhwirth **20080101152101] [Fix building libHSrts.dll by using ghc-pkg instead of grepping in base.cabal Clemens Fruhwirth **20071230193952] [Add installPackage to dependencies of make.library.* as it's used by the rule Clemens Fruhwirth **20071229162707] [Install dynlibs correctly Clemens Fruhwirth **20071228184024 Add dynlibdir target to config.mk.in, setting it to @libdir@. Invoke installPackage with dynlibdir at libraries/Makefile Make installPackage.hs hand dynlibdir to Cabal. ] [import ord that alex secretly imported Isaac Dupree **20071228175727] [add missing import that happy -agc secretly provided Isaac Dupree **20071227171335] [correct type mistake, hidden by happy -agc coercions! Isaac Dupree **20071226140743] [API changes for cabal-HEAD Clemens Fruhwirth **20071227143114 Rename interfacedir to haddockdir Change empty(Copy|Register)Flags to default(Copy|Register)Flags Wrap content of RegisterFlags with toFlag (the Flag type is actually just Maybe) ] [Extend API for compiling to and from Core Tim Chevalier **20071225200411 Added API support for compiling Haskell to simplified Core, and for compiling Core to machine code. The latter, especially, should be considered experimental and has only been given cursory testing. Also fixed warnings in DriverPipeline. Merry Christmas. ] [When complaining about non-rigid context, give suggestion of adding a signature simonpj@microsoft.com**20071224122217] [Improve handling of newtypes (fixes Trac 1495) simonpj@microsoft.com**20071221090406 In a few places we want to "look through" newtypes to get to the representation type. But we need to be careful that we don't fall into an ininite loop with e.g. newtype T = MkT T The old mechansim for doing this was to have a field nt_rep, inside a newtype TyCon, that gave the "ultimate representation" of the type. But that failed for Trac 1495, which looked like this: newtype Fix a = Fix (a (Fix a)) data I a = I a Then, expanding the type (Fix I) went on for ever. The right thing to do seems to be to check for loops when epxanding the *type*, rather than in the *tycon*. This patch does that, - Removes nt_rep from TyCon - Make Type.repType check for loops See Note [Expanding newtypes] in Type.lhs. At the same time I also fixed a bug for Roman, where newtypes were not being expanded properly in FamInstEnv.topNormaliseType. This function and Type.repType share a common structure. Ian, see if this merges easily to the branch If not, I don't think it's essential to fix 6.8 ] [Fix Trac #1981: seq on a type-family-typed expression simonpj@microsoft.com**20071221085542 We were crashing when we saw case x of DEFAULT -> rhs where x had a type-family type. This patch fixes it. MERGE to the 6.8 branch. ] [Comment only simonpj@microsoft.com**20071220164621] [Fix nasty recompilation bug in MkIface.computeChangedOccs simonpj@microsoft.com**20071220164307 MERGE to 6.8 branch In computeChangedOccs we look up the old version of a Name. But a WiredIn Name doesn't have an old version, because WiredIn things don't appear in interface files at all. Result: ghc-6.9: panic! (the 'impossible' happened) (GHC version 6.9 for x86_64-unknown-linux): lookupVers1 base:GHC.Prim chr#{v} This fixes the problem. The patch should merge easily onto the branch. ] [Fix Trac #1988; keep the ru_fn field of a RULE up to date simonpj@microsoft.com**20071220131912 The ru_fn field was wrong when we moved RULES from one Id to another. The fix is simple enough. However, looking at this makes me realise that the worker/wrapper stuff for recursive newtypes isn't very clever: we generate demand info but then don't properly exploit it. This patch fixes the crash though. ] [Add better panic message in getSRTInfo (Trac #1973) simonpj@microsoft.com**20071220180335] [Remove obselete code for update-in-place (which we no longer do) simonpj@microsoft.com**20071220173432] [Implement generalised list comprehensions simonpj@microsoft.com**20071220111300 This patch implements generalised list comprehensions, as described in the paper "Comprehensive comprehensions" (Peyton Jones & Wadler, Haskell Workshop 2007). If you don't use the new comprehensions, nothing should change. The syntax is not exactly as in the paper; see the user manual entry for details. You need an accompanying patch to the base library for this stuff to work. The patch is the work of Max Bolingbroke [batterseapower@hotmail.com], with some advice from Simon PJ. The related GHC Wiki page is http://hackage.haskell.org/trac/ghc/wiki/SQLLikeComprehensions ] [More bindist-publishing fixes and refactoring Ian Lynagh **20071218144505] [Fix publishing the docs Ian Lynagh **20071216122544] [Eliminate external GMP dependencies Manuel M T Chakravarty **20071217093839 - Ensure the stage1 compiler uses ghc's own GMP library on Mac OS - Need to rebuild installPackage and ifBuildable with stage1 compiler as they go into bindists ] [Include ~/Library/Frameworks in the framework searchpath Ian Lynagh **20071217233457 Patch from Christian Maeder ] [Make ghcii.sh executable Ian Lynagh **20071217195734] [Don't rely on distrib/prep-bin-dist-mingw being executable Ian Lynagh **20071217195554] [Add dead code elimination in cmmMiniInline Simon Marlow **20071220151734 cmmMiniInline counts the uses of local variables, so it can easily eliminate assigments to unused locals. This almost never gets triggered, as we don't generate any dead assignments, but it will be needed by a forthcoming cleanup in CgUtils.emitSwitch. ] [always try to remove the new file before restoring the old one (#1963) Simon Marlow **20071214123345] [FIX #1980: must check for ThreadRelocated in killThread# Simon Marlow **20071217164610] [Fix a bug in gen_contents_index Ian Lynagh **20071212121154 The library doc index thought that the docs were in $module.html, rather than $package/$module.html. ] [Fix lifting of case expressions Roman Leshchinskiy **20071215000837 We have to explicity check for empty arrays in each alternative as recursive algorithms wouldn't terminate otherwise. ] [Use (UArr Int) instead of PArray_Int# in vectorisation Roman Leshchinskiy **20071215000739] [Fix bug in VectInfo loading Roman Leshchinskiy **20071214230914] [Remove unused vectorisation built-in Roman Leshchinskiy **20071214011015] [Treat some standard data cons specially during vectorisation Roman Leshchinskiy **20071213034855 This is a temporary hack which allows us to vectorise literals. ] [More vectorisation-related built ins Roman Leshchinskiy **20071213034839] [Track changes to package ndp Roman Leshchinskiy **20071212062714] [Add vectorisation built-ins Roman Leshchinskiy **20071212040521] [FIX #1963: catch Ctrl-C and clean up properly Simon Marlow **20071213154056] [Document the new threshold flags Roman Leshchinskiy **20071214003003] [Separate and optional size thresholds for SpecConstr and LiberateCase Roman Leshchinskiy **20071214002719 This patch replaces -fspec-threshold by -fspec-constr-threshold and -fliberate-case-threshold. The thresholds can be disabled by -fno-spec-constr-threshold and -fno-liberate-case-threshold. ] [Make HscTypes.tyThingId respond not panic on ADataCon simonpj@microsoft.com**20071204152903] [Use Unix format for RnPat (no other change) simonpj@microsoft.com**20071213140532] [Improve free-variable handling for rnPat and friends (fixes Trac #1972) simonpj@microsoft.com**20071213140213 As well as fixing the immediate problem (Trac #1972) this patch does a signficant simplification and refactoring of pattern renaming. Fewer functions, fewer parameters passed....it's all good. But it took much longer than I expected to figure out. The most significant change is that the NameMaker type does *binding* as well as *making* and, in the matchNameMaker case, checks for unused bindings as well. This is much tider. (No need to merge to the 6.8 branch, but no harm either.) ] [Allow more than 3 simplifier iterations to be run in phase 0 Roman Leshchinskiy **20071213040835 The number of iterations during the first run of phase 0 was erroneously hardcoded to 3. It should be *at least* 3 (see comments in code) but can be more. ] [Document -ddump-simpl-phases Roman Leshchinskiy **20071213040822] [New flag: -ddump-simpl-phases Roman Leshchinskiy **20071213040644 This outputs the core after each simplifier phase (i.e., it produces less information that -ddump-simpl-iterations). ] [Don't dump simplifier iterations with -dverbose-core2core Roman Leshchinskiy **20071213034635 SimonPJ says this is the correct behaviour. We still have -ddump-simpl-iterations. ] ["list --simple-output" should be quiet when there are no packages to list Simon Marlow **20071212102230 Previously: $ ghc-pkg list --user --simple-output ghc-pkg: no matches $ Now: $ ghc-pkg list --user --simple-output $ ] [Fix vectorisation bug Roman Leshchinskiy **20071206233015] [Vectorisation-related built ins Roman Leshchinskiy **20071206040829] [Teach vectorisation about some temporary conversion functions Roman Leshchinskiy **20071206032547] [Vectorise case of unit correctly Roman Leshchinskiy **20071205221305] [Teach vectorisation about singletonP Roman Leshchinskiy **20071205221240] [Optimise desugaring of parallel array comprehensions Roman Leshchinskiy **20071205221213] [Teach vectorisation about tuple datacons Roman Leshchinskiy **20071205050221] [Track additions to package ndp Roman Leshchinskiy **20071205042649] [Track changes to package ndp Roman Leshchinskiy **20071205033859] [Improve pretty-printing of InstDecl simonpj@microsoft.com**20071210083053 Fixes Trac #1966. ] [Comments only Pepe Iborra **20071208204815] [Refactoring only Pepe Iborra **20071208195222 Suspensions in the Term datatype used for RTTI always get assigned a Type, so there is no reason to juggle around with a (Maybe Type) anymore. ] [Change the format used by :print to show the content of references Pepe Iborra **20071208193013 This comes as result of the short discussion linked below. http://www.haskell.org/pipermail/cvs-ghc/2007-December/040049.html ] [Help the user when she tries to do :history without :trace Pepe Iborra **20071208180918 Teach GHCi to show a "perhaps you forgot to use :trace?" when it finds that the user is trying to retrieve an empty :history ] [Prevent the binding of unboxed things by :print Pepe Iborra **20071208181830] [Coercions from boxy splitters must be sym'ed in pattern matches Manuel M T Chakravarty **20071208105018] [Properly keep track of whether normalising given or wanted dicts Manuel M T Chakravarty **20071207071302 - The information of whether given or wanted class dictionaries where normalised by rewriting wasn't always correctly propagated in TcTyFuns, which lead to malformed dictionary bindings. - Also fixes a bug in TcPat.tcConPat where GADT equalities where emitted in the wrong position in case bindings (which led to CoreLint failures). ] [TcPat.tcConPat uses equalities instead of GADT refinement Manuel M T Chakravarty **20071120071208 * This patch implements the use of equality constraints instead of GADT refinements that we have been discussing for a while. * It just changes TcPat.tcConPat. It doesn't have any of the simplification and dead code removal that is possible due to this change. * At the moment, this patch breaks a fair number of GADT regression tests. ] [Use installPackage for register --inplace as well as installing Ian Lynagh **20071207234652 We also need to do the GHC.Prim hack when registering inplace or the tests that use it fail. ] [Fix the libraries Makefile Ian Lynagh **20071205125015 x && y is not the same as if x; then y; fi as the latter doesn't fail when x fails ] [Copy hscolour.css into dist/... so it gets installed with the library docs Ian Lynagh **20071205013703] [Add the hscolour.css from hscolour 1.8 Ian Lynagh **20071205011733] [BIN_DIST_INST_SUBDIR Needs to be defined in config.mk so ./Makefile can see it Ian Lynagh **20071207121317] [#include ../includes/MachRegs.h rather than just MachRegs.h Ian Lynagh **20071205170335 This fixes building on NixOS. I'm not sure why it worked everywhere else, but not on NixOS, before. ] [Fix bindist creation: readline/config.mk is gone Ian Lynagh **20071203123031] [FIX #1843: Generate different instructions on PPC Ian Lynagh **20071203123237 The old ones caused lots of unknown scattered relocation type 4 errors. Patch from Chris Kuklewicz. ] [Refactor gen_contents_index Ian Lynagh **20071207183538 Also fixes it with Solaris's sh, spotted by Christian Maeder ] [Use GHC.Exts rather than GHC.Prim Ian Lynagh **20071202234222] [Alter the base:GHC.Prim hack in installPackage, following changes in base Ian Lynagh **20071202215719] [Remove debug warning, and explain why simonpj@microsoft.com**20071207170507] [comment only Simon Marlow **20071206092422] [comment typo Simon Marlow **20071206092412] [add Outputable instance for OccIfaceEq Simon Marlow **20071206092403] [Workaround for #1959: assume untracked names have changed Simon Marlow **20071206092349 This fixes the 1959 test, but will do more recompilation than is strictly necessary (but only when -O is on). Still, more recompilation is better than segfaults, link errors or other random breakage. ] [FIX part of #1959: declaration versions were not being incremented correctly Simon Marlow **20071206084556 We were building a mapping from ModuleName to [Occ] from the usage list, using the usg_mod field as the key. Unfortunately, due to a very poor naming decision, usg_mod is actually the module version, not the ModuleName. usg_name is the ModuleName. Since Version is also an instance of Uniquable, there was no type error: all that happened was lookups in the map never succeeded. I shall rename the fields of Usage in a separate patch. This doesn't completely fix #1959, but it gets part of the way there. I have to take partial blame as the person who wrote this fragment of code in late 2006 (patch "Interface file optimisation and removal of nameParent"). ] [move FP_FIND_ROOT after the "GHC is required" check Simon Marlow **20071205101814] [FIX #1110: hackery also needed when running gcc for CPP Simon Marlow **20071205150230] [Teach :print to follow references (STRefs and IORefs) Pepe Iborra **20071204105511 Prelude Data.IORef> :p l l = (_t4::Maybe Integer) : (_t5::[Maybe Integer]) Prelude Data.IORef> p <- newIORef l Prelude Data.IORef> :p p p = GHC.IOBase.IORef (GHC.STRef.STRef {((_t6::Maybe Integer) : (_t7::[Maybe Integer]))}) Prelude Data.IORef> :sp p p = GHC.IOBase.IORef (GHC.STRef.STRef {(_ : _)}) I used braces to denote the contents of a reference. Perhaps there is a more appropriate notation? ] [refactoring only Pepe Iborra **20071202125400] [Change --shared to -shared in Win32 DLL docs simonpj@microsoft.com**20071204154023] [protect console handler against concurrent access (#1922) Simon Marlow **20071204153918] [Make eta reduction check more carefully for bottoms (fix Trac #1947) simonpj@microsoft.com**20071204145803 Eta reduction was wrongly transforming f = \x. f x to f = f Solution: don't trust f's arity information; instead look at its unfolding. See Note [Eta reduction conditions] Almost all the new lines are comments! ] [Improve inlining for INLINE non-functions simonpj@microsoft.com**20071204114955 (No need to merge to 6.8, but no harm if a subsequent patch needs it.) The proximate cause for this patch is to improve the inlining for INLINE things that are not functions; this came up in the NDP project. See Note [Lone variables] in CoreUnfold. This caused some refactoring that actually made things simpler. In particular, more of the inlining logic has moved from SimplUtils to CoreUnfold, where it belongs. ] [fix race conditions in sandboxIO (#1583, #1922, #1946) Simon Marlow **20071204114444 using the new block-inheriting forkIO (#1048) ] [:cd with no argument goes to the user's home directory Simon Marlow **20071204113945 Seems better than getting a confusing 'cannot find directory' exception. ] [forkIO starts the new thread blocked if the parent is blocked (#1048) Simon Marlow **20071204110947] [Improve eta reduction, to reduce Simplifier iterations simonpj@microsoft.com**20071203150039 I finally got around to investigating why the Simplifier was sometimes iterating so often. There's a nice example in Text.ParserCombinators.ReadPrec, which produced: NOTE: Simplifier still going after 3 iterations; bailing out. Size = 339 NOTE: Simplifier still going after 3 iterations; bailing out. Size = 339 NOTE: Simplifier still going after 3 iterations; bailing out. Size = 339 No progress is being made. It turned out that an interaction between eta-expansion, casts, and eta reduction was responsible. The change is small and simple, in SimplUtils.mkLam: do not require the body to be a Lam when floating the cast outwards. I also discovered a missing side condition in the same equation, so fixing that is good too. Now there is no loop when compiling ReadPrec. Should do a full nofib run though. ] [Don't default to stripping binaries when installing Ian Lynagh **20071202195817] [Improve pretty-printing for Insts simonpj@microsoft.com**20071128173125] [Reorganise TcSimplify (again); FIX Trac #1919 simonpj@microsoft.com**20071128173146 This was a bit tricky. We had a "given" dict like (d7:Eq a); then it got supplied to reduceImplication, which did some zonking, and emerged with a "needed given" (d7:Eq Int). That got everything confused. I found a way to simplify matters significantly. Now reduceContext - first deals with methods/literals/dictionaries - then deals with implications Separating things in this way not only made the bug go away, but eliminated the need for the recently-added "needed-givens" results returned by checkLoop. Hurrah. It's still a swamp. But it's a bit better. ] [FIX #1914: GHCi forgot all the modules that were loaded before an error Simon Marlow **20071130130734] [FIX #1744: ignore the byte-order mark at the beginning of a file Simon Marlow **20071130101100] [FIX Trac #1935: generate superclass constraints for derived classes simonpj@microsoft.com**20071128150541 This bug only reports a problem with phantom types, but actually there was quite a long-standing and significant omission in the constraint generation for derived classes. See Note [Superclasses of derived instance] in TcDeriv. The test deriving-1935 tests both cases. ] [Print a bit more info in VarBinds (no need to merge) simonpj@microsoft.com**20071128150354] [Check for duplicate bindings in CoreLint simonpj@microsoft.com**20071128150214] [add comment Simon Marlow **20071128111417] [FIX #1916: don't try to convert float constants to int in CMM optimizer Bertram Felgenhauer **20071122095513] [give a more useful message when the static flags have not been initialised (#1938) Simon Marlow **20071127135435] [Rebuild utils with the stage1 compiler when making a bindist; fixes trac #1860 Ian Lynagh **20071127203959 This is a bit unpleasant, as "make binary-dist" really shouldn't actually build anything, but it works. ] [Remove the --print-docdir flag Ian Lynagh **20071127195605 It wasn't doing the right thing for bindists. Let's rethink... ] [FIX #1925: the interpreter was not maintaining tag bits correctly Simon Marlow **20071127122614 See comment for details ] [add missing instruction: ALLOC_AP_NOUPD Simon Marlow **20071127122604] [Check tag bits on the fun pointer of a PAP Simon Marlow **20071126160420] [canonicalise the path to HsColour Simon Marlow **20071126141614] [Consistently put www. on the front of haskell.org in URLs Ian Lynagh **20071126215256] [Fix some more URLs Ian Lynagh **20071126214147] [Tweak some URLs Ian Lynagh **20071126194148] [Fix some links Ian Lynagh **20071126184406] [Copy gmp stamps into bindists, so we don't try and rebuild gmp Ian Lynagh **20071125211919] [On Windows, Delete the CriticalSection's we Initialize Ian Lynagh **20071125125845] [On Windows, add a start menu link to the flag reference Ian Lynagh **20071125124429] [Remove html/ from the paths we put in the start menu on Windows Ian Lynagh **20071125124150] [MERGED: Make ":" in GHCi repeat the last command Ian Lynagh **20071125122020 Ian Lynagh **20071124231857 It used to be a synonym for ":r" in 6.6.1, but this wasn't documented or known about by the developers. In 6.8.1 it was accidentally broken. This patch brings it back, but as "repeat the last command", similar to pressing enter in gdb. This is almost as good for people who want it to reload, and means that it can also be used to repeat commands like :step. ] [MERGED: Put library docs in a $pkg, rather than $pkgid, directory; fixes trac #1864 Ian Lynagh **20071124212305 Ian Lynagh **20071124171220 ] [Don't make a library documentation prologue Ian Lynagh **20071124211943 It's far too large now, and no-one complained when 6.8.1 didn't have one. ] [Don't put package version numbers in links in index.html Ian Lynagh **20071124211629] [Define install-strip in Makefile Ian Lynagh **20071124205037] [Define install-strip in distrib/Makefile Ian Lynagh **20071124204803] [Install gmp from bindists; fixes trac #1848 Ian Lynagh **20071124185240] [(native gen) fix code generated for GDTOI on x86_32 Bertram Felgenhauer **20071121063942 See trac #1910. ] [Copy the INSTALL hack from mk/config.mk.in into distrib/Makefile-bin-vars.in Ian Lynagh **20071124163028 configure will set INSTALL to ./install-sh if it can't find it in the path, so we need to replace the . with the path to our root. ] [Make install-sh executable /before/ we try to find it Ian Lynagh **20071124162450] [Document --info in the +RTS -? help Ian Lynagh **20071123204352] [MERGED: If we have hscolour then make source code links in teh haddock docs Ian Lynagh **20071123233113 Fri Nov 23 13:15:59 PST 2007 Ian Lynagh ] [Tidy and trim the type environment in mkBootModDetails simonpj@microsoft.com**20071123153519 Should fix Trac #1833 We were failing to trim the type envt in mkBootModDetails, so several functions all called (*), for example, were getting into the interface. Result chaos. It only actually bites when we do the retyping-loop thing, which is why it's gone so long without a fix. ] [refactor: HscNothing and boot modules do not need desugaring Simon Marlow **20071123135237] [FIX #1910: fix code generated for GDTOI on x86_32 Bertram Felgenhauer *-20071121102627] [Properly ppr InstEqs in wanteds of implication constraints Manuel M T Chakravarty **20071122093002] [FIX #1910: fix code generated for GDTOI on x86_32 Bertram Felgenhauer **20071121102627] [Add built-in Double operations to vectorisation Roman Leshchinskiy **20071122002517] [Teach vectorisation about Double Roman Leshchinskiy **20071121054932] [Vectorise polyexprs with notes Roman Leshchinskiy **20071121053102] [Make rebindable do-notation behave as advertised simonpj@microsoft.com**20071121174914 Adopt Trac #1537. The patch ended up a bit bigger than I expected, so I suggest we do not merge this into the 6.8 branch. But there is no funadamental reason why not. With this patch, rebindable do-notation really does type as if you had written the original (>>) and (>>=) operations in desguared form. I ended up refactoring some of the (rather complicated) error-context stuff in TcUnify, by pushing an InstOrigin into tcSubExp and its various calls. That means we could get rid of tcFunResTy, and the SubCtxt type. This should improve error messages slightly in complicated situations, because we have an Origin to hand to instCall (in the (isSigmaTy actual_ty) case of tc_sub1). Thanks to Pepe for the first draft of the patch. ] [Add DEBUG-only flag -dsuppress-uniques to suppress printing of uniques simonpj@microsoft.com**20071116152446 This is intended only for debugging use: it makes it easier to compare two variants without the variations between uniques mattering. (Of course, you can't actually feed the output to the C compiler or assembler and expect anything sensible to happen!) ] [Add -dcore-lint when validating libraries simonpj@microsoft.com**20071105164733] [Fix Trac #1913: check data const for derived types are in scope simonpj@microsoft.com**20071121151428 When deriving an instance, the data constructors should all be in scope. This patch checks the condition. ] [Fix Trac #1909: type of map in docs simonpj@microsoft.com**20071120160152] [Move file locking into the RTS, fixing #629, #1109 Simon Marlow **20071120140859 File locking (of the Haskell 98 variety) was previously done using a static table with linear search, which had two problems: the array had a fixed size and was sometimes too small (#1109), and performance of lockFile/unlockFile was suboptimal due to the linear search. Also the algorithm failed to count readers as required by Haskell 98 (#629). Now it's done using a hash table (provided by the RTS). Furthermore I avoided the extra fstat() for every open file by passing the dev_t and ino_t into lockFile. This and the improvements to the locking algorithm result in a healthy 20% or so performance increase for opening/closing files (see openFile008 test). ] [FIX Trac #1825: standalone deriving Typeable simonpj@microsoft.com**20071120125732 Standalone deriving of typeable now requires you to say instance Typeable1 Maybe which is exactly the shape of instance decl that is generated by a 'deriving( Typeable )' clause on the data type decl. This is a bit horrid, but it's the only consistent way, at least for now. If you say something else, the error messages are helpful. MERGE to 6.8 branch ] [FIX #1715: egregious bug in ifaceDeclSubBndrs simonpj@microsoft.com**20071120111723 ifaceDeclSubBndrs didn't have an IfaceSyn case; but with type families an IfaceSyn can introduce subordinate binders. Result: chaos. The fix is easy though. Merge to 6.8 branch. ] [Always do 'setup makefile' before building each library Simon Marlow **20071120103329 This forces preprocessing to happen, which is necessary if any of the .hsc files have been modified. Without this change, a 'setup makefile' would be required by hand after a .hsc file changed. Fortunately 'setup makefile' isn't much extra work, and I've made it not overwrite GNUmakefile if it hasn't changed, which avoids recalculating the dependencies each time. ] [FIX #1847 (improve :browse! docs, fix unqual) claus.reinke@talk21.com**20071108013147 - add example to docs, explain how to interpret output of `:browse! Data.Maybe` - print unqualified names according to current context, not the context of the target module ] [Track changes to package ndp Roman Leshchinskiy **20071120033716] [Temporary hack for passing PArrays from unvectorised to vectorised code Roman Leshchinskiy **20071120024545] [Bind NDP stuff to [:.:] arrays Roman Leshchinskiy **20071119020302] [Don't treat enumerations specially during vectorisation for the moment Roman Leshchinskiy **20071119013729] [Fix bugs in vectorisation of case expressions Roman Leshchinskiy **20071119013714] [More built-in NDP combinators Roman Leshchinskiy **20071119012205] [New vectorisation built-ins Roman Leshchinskiy **20071118051940] [Fix bug in conversion unvect/vect Roman Leshchinskiy **20071118051926] [Extend built-in vectorisation environments Roman Leshchinskiy **20071118045219] [Fix bug in generation of environments for vectorisation Roman Leshchinskiy **20071118045203] [Add builtin var->var mapping to vectorisation Roman Leshchinskiy **20071118042605] [Extend vectorisation built-in mappings with datacons Roman Leshchinskiy **20071118034351] [Change representation of parallel arrays of enumerations Roman Leshchinskiy **20071118033355] [Add vectorisation-related builtin Roman Leshchinskiy **20071118031513] [Teach vectorisation about Bool Roman Leshchinskiy **20071117042714] [Incomplete support for boxing during vectorisation Roman Leshchinskiy **20071117040739] [Make sure some TyCons always vectorise to themselves Roman Leshchinskiy **20071117040537] [Simple conversion vectorised -> unvectorised Roman Leshchinskiy **20071117023029] [Fix bug in case vectorisation Roman Leshchinskiy **20071117015014] [Vectorisation of algebraic case expressions Roman Leshchinskiy **20071116074814] [More vectorisation-related built-ins Roman Leshchinskiy **20071116061831] [Vectorisation utilities Roman Leshchinskiy **20071116051037] [Add vectorisation built-ins Roman Leshchinskiy **20071116050959] [Fix vectorisation of binders in case expressions Roman Leshchinskiy **20071116021833] [Two small typos in the flags summary (merge to 6.8 branch) simonpj@microsoft.com**20071119134639] [Improve the situation for Trac #959: civilised warning instead of a trace msg simonpj@microsoft.com**20071119122938 This doesn't fix the root cause of the bug, but it makes the report more civilised, and points to further info. ] [FIX Trac #1806: test for correct arity for datacon in infix pattern patch simonpj@microsoft.com**20071119114301 Happily the fix is easy; pls merge ] [Accept x86_64-*-freebsd* as well as amd64-*-freebsd* in configure.ac Ian Lynagh **20071117154502 Patch from Brian P. O'Hanlon ] [Attempt at fixing #1873, #1360 Simon Marlow **20071116152148 I think I figured out a reasonable way to manage the GHCi context, comments welcome. Rule 1: external package modules in the context are persistent. That is, when you say 'import Data.Maybe' it survives over :load, :add, :reload and :cd. Rule 2: :load and :add remove all home-package modules from the context and add the rightmost target, as a *-module if possible. This is as before, and makes sense for :load because we're starting a new program; the old home-package modules don't make sense any more. For :add, it usually does what you want, because the new target will become the context. Rule 3: any modules from the context that fail to load during a :reload are remembered, and re-added to the context at the next successful :reload. Claus' suggestion about adding the "remembered" modules to the prompt prefixed with a ! is implemented but commented out. I couldn't decide whether it was useful or confusing. One difference that people might notice is that after a :reload where there were errors, GHCi would previously dump you in the most recent module that it loaded. Now it dumps you in whatever subset of the current context still makes sense, and in the common case that will probably be {Prelude}. ] [Wibble to fix Trac #1901 (shorten messsage slightly) simonpj@microsoft.com**20071116150341] [Improve links from flag reference to the relevant section; and improve doc of RankN flags simonpj@microsoft.com**20071116145816] [FIX Trac #1901: check no existential context in H98 mode simonpj@microsoft.com**20071116145609] [Improve documentation of data type declarations (Trac #1901) simonpj@microsoft.com**20071116081841] [Change the command-line semantics for query commands Simon Marlow **20071116132046 From the help text: Commands that query the package database (list, latest, describe, field) operate on the list of databases specified by the flags --user, --global, and --package-conf. If none of these flags are given, the default is --global --user. This makes it possible to query just a single database (e.g. the global one without the user one), which needed tricks to accomplish before. ] [use "ghc-pkg latest --global" instead of "ghc-pkg list --simple-output" Simon Marlow **20071116122018 The former now does the right thing: it uses the global database only, and picks the most recent package with the given name. ] [Disallow installing packages whose names differ in case only. Simon Marlow **20071116121153 --force overrides. Requested by Duncan Coutts, with a view to treating package names as case-insensitive in the future. ] [FIX BUILD (with GHC 6.2.x): update .hi-boot file Simon Marlow **20071116101227] [FIX #1828: installing to a patch with spaces in Simon Marlow **20071115155747 We have to pass the path to gcc when calling windres, which itself might have spaces in. Furthermore, we have to pass the path to gcc's tools to gcc. This means getting the quoting right, and after much experimentation and reading of the windres sources I found something that works: passing --use-temp-files to windres makes it use its own implementation of quoting instead of popen(), and this does what we want. Sigh. ] [on Windows, install to a directory with spaces (test for #1828) Simon Marlow **20071115155327] [FIX #1679: crash on returning from a foreign call Simon Marlow **20071115131635 We forgot to save a pointer to the BCO over the foreign call. Doing enough allocation and GC during the call could provoke a crash. ] [Avoid the use of unversioned package dependencies Simon Marlow **20071115103249 Fortunately "ghc-pkg list $pkg --simple-output" is a good way to add the version number. ] [FIX #1596 (remove deprecated --define-name) Simon Marlow **20071114165323 Also remove the old command-line syntax for ghc-pkg, which was not documented. Do not merge. ] [FIX #1837: remove deprecated support for unversioned dependencies (do not merge) Simon Marlow **20071114161044 ] [wibble Pepe Iborra **20071114233356] [Make pprNameLoc more robust in absence of loc information Pepe Iborra **20071114233343] [Try to manage the size of the text rendered for ':show bindings' Pepe Iborra **20071114231601] [Make the Term ppr depth aware Pepe Iborra **20071114183417] [Use paragraph fill sep where possible Pepe Iborra **20071114181233] [Make SpecConstr work again simonpj@microsoft.com**20071115084242 In a typo I'd written env instead of env', and as a result RULES are practically guaranteed not to work in a recursive group. This pretty much kills SpecConstr in its tracks! Well done Kenny Lu for spotting this. The fix is easy. Merge into 6.8 please. ] [Documentation only - fix typo in flags reference Tim Chevalier **20071115055748] [Avoid making Either String an instance of Monad in the Haddock parser David Waern **20071114204050] [FIX 1463 (implement 'ghc-pkg find-module') claus.reinke@talk21.com**20071109162652 - the ticket asks for a module2package lookup in ghc-pkg (this would be useful to have in cabal, as well) - we can now ask which packages expose a module we need, eg, when preparing a cabal file or when getting errors after package reorganisations: $ ./ghc-pkg-inplace find-module Var c:/fptools/ghc/driver/package.conf.inplace: (ghc-6.9.20071106) $ ./ghc-pkg-inplace find-module Data.Sequence c:/fptools/ghc/driver/package.conf.inplace: containers-0.1 - implemented as a minor variation on listPackages (as usual, it would be useful if one could combine multiple queries into one) ] [remove --define-name from the --help usage message (#1596) Simon Marlow **20071114153417 ] [FIX #1837: emit deprecated message for unversioned dependencies Simon Marlow **20071114153010] [Fix #782, #1483, #1649: Unicode GHCi input Simon Marlow **20071114151411 GHCi input is now treated universally as UTF-8, except for the Windows console where we do the correct conversion from the current code page (see System.Win32.stringToUnicode). That leaves non-UTF-8 locales on Unix as unsupported, but (a) we only accept source files in UTF-8 anyway, and (b) UTF-8 is quite ubiquitous as the default locale. ] [Fix build David Waern **20071114125842 I had forgot to update HaddockLex.hi-boot-6, so the build with 6.2.2 failed. This fixes that. ] [FIX Trac 1662: actually check for existentials in proc patterns simonpj@microsoft.com**20071114112930 I'd fixed the bug for code that should be OK, but had forgotten to make the test for code that should be rejected! Test is arrowfail004 ] [FIX Trac 1888; duplicate INLINE pragmas simonpj@microsoft.com**20071114104701 There are actually three things here - INLINE pragmas weren't being pretty-printed properly - They were being classified into too-narrow boxes by eqHsSig - They were being printed in to much detail by hsSigDoc All easy. Test is rnfail048. ] [Run the -frule-check pass more often (when asked) simonpj@microsoft.com**20071114104632] [GHCi debugger: added a new flag, -fno-print-binding-contents Pepe Iborra **20071113174539 The contents of bindings show at breakpoints and by :show bindings is rendered using the same printer that :print uses. But sometimes the output it gives spans over too many lines and the user may want to be able to disable it. ] [Fix Trac 1865: GHCi debugger crashes with :print Pepe Iborra **20071113170113] [Replaced two uses of head b explicit pattern matching Pepe Iborra **20071013113136] [Print binding contents in :show bindings Pepe Iborra **20071006123952] [ Leftovers from the 1st GHCi debugger prototype Pepe Iborra **20071004204718] [Following an indirection doesn't count as a RTTI step Pepe Iborra **20070928091941] [FIX #1653 (partially): add -X flags to completion for :set Simon Marlow **20071113153257] [Merge from Haddock: Add <> for images David Waern **20071112220537 A merge of this patch: Mon Aug 7 16:22:14 CEST 2006 Simon Marlow * Add <> for images Submitted by: Lennart Augustsson Please merge to the 6.8.2 branch. ] [Improve documentation of INLINE, esp its interactions with other transformations simonpj@microsoft.com**20071112160240] [Comment re Trac #1220 simonpj@microsoft.com**20071112154109] [Merge from Haddock: Modify lexing of /../ David Waern **20071112023856 Tue Aug 28 11:19:54 CEST 2007 Simon Marlow * Modify lexing of /../ This makes /../ more like '..', so that a single / on a line doesn't trigger a parse error. This should reduce the causes of accidental parse errors in Haddock comments; apparently stray / characters are a common source of failures. Please merge this to the 6.8.2 branch. ] [Merge from Haddock: allow blank lines inside code blocks David Waern **20071112013439 Tue Jan 9 14:14:34 CET 2007 Simon Marlow * allow blank lines inside a @...@ code block Please merge this to the 6.8.2 branch ] [Merge of a patch from the old Haddock branch: David Waern **20071112013143 Fri Jan 5 12:13:41 CET 2007 Simon Marlow * Fix up a case of extra vertical space after a code block Please merge this to the 6.8.2 branch ] [Remove ex-extralibs from libraries/Makefile Ian Lynagh **20071111213618] [Remove the X11 and HGL libraries from extralibs Ian Lynagh **20071111213447 Don Stewart, X11 maintainer, requested we remove X11, and HGL depends on it on Linux (and we don't try to build HGL on Windows). ] [arrows is no longer an extralib Ian Lynagh **20071027123656] [Turn -fprint-bind-result off by default Ian Lynagh **20071111001126] [TAG 2007-11-11 Ian Lynagh **20071111161540] [Define CPP in distrib/Makefile-bin-vars.in; fixes #1855 Ian Lynagh **20071110180302 Patch from Christian Maeder ] [Tweak gen_contents_index to work with Solaris's sh Ian Lynagh **20071110180014] [Update install-sh Ian Lynagh **20071110173950 This comes from the Debian automake 1:1.10+nogfdl-1 package. ] [Support more doc targets (html, pdf, etc) in the libraries Makefile Ian Lynagh **20071110171328] [Build Cabal user guide during "make", not only "make install-docs" Ian Lynagh **20071110171247] [Use INSTALL_SCRIPT, not INSTALL_PROGRAM, when installing scripts; fixes #1858 Ian Lynagh **20071110152309] [Rename Parser.ly in the extralibs tarball; fixes #1859 Ian Lynagh **20071110151529 If Cabal doesn't see the .ly file then it won't try to run happy, and thus won't fail if happy isn't installed. ] [Add a path to the DocBook XSL Stylesheets search path Ian Lynagh **20071110150649 Slackware puts the stylesheets in /usr/share/xml/docbook/xsl-stylesheets* Patch from Andrea Rossato. ] [Replace "tail -n +2" with "sed 1d", as Solaris doesn't understand the former Ian Lynagh **20071031001218] [Fix typo: -XNoRank2Types -> -XRank2Types Ian Lynagh **20071109135656] [Fix Trac #1654: propagate name changes into CoreRules simonpj@microsoft.com**20071108175108 This patch is on the HEAD. It fixes a nasty and long-standing bug whereby we weren't substituting the ru_fn field of a CoreRule in CoreSubst.substSpec, which ultimately led to a puzzling "nameModule" error trying to put the rules in the interface file. ] [eliminate a bit of duplication Simon Marlow *-20071105143714] [Pad static literals to word size in the code generator Simon Marlow **20071108132842] [FIX #1617: reloading didn't change the :browse output as it should Simon Marlow **20071107161454 The problem was that because the interface hadn't changed, we were re-using the old ModIface. Unfortunately the ModIface contains the GlobalRdrEnv for the module, and that *had* changed. The fix is to put the new GlobalRdrEnv in the ModIface even if the interface has not otherwise changed. ModIface is not really the right place for the GlobalRdrEnv, but neither is ModDetails, so we should think about a better way to do this. ] [FIX BUILD Simon Marlow **20071107161612 Sorry, should have pushed with previous batch of changes. ] [FIX #1556: GHC's :reload keeps the context, if possible Simon Marlow **20071107124118] [FIX #1561: don't use tabs in pretty-printed output at all. Simon Marlow **20071107113201 Tabs aren't guaranteed to be 8 spaces on every output device, so we shouldn't be using them. Instead I added a little optimisation to use chunks of 8 spaces for long indentations. ] [FIX #1765, #1766 Simon Marlow **20071107111757 - :def! now overwrites a previous command with the same name - :def on its own lists the defined macros - ":undef f g" undefines both f and g ] [#1617: Add :browse! and various other additions to GHCi Simon Marlow **20071107102648 - :browse! a variant of :browse that lists children separately, not in context, and gives import qualifiers in comments SimonM: I also added sorting by source location for interpreted modules in :browse, and alphabetic sorting by name otherwise. For :browse *M, the locally-defined names come before the external ones. - :{ ..lines.. :} (multiline commands) allow existing commands to be spread over multiple lines to improve readability, both interactively and in .ghci (includes a refactoring that unifies the previous three command loops into one, runCommands, fed from cmdqueue, file, or readline) - :set now shows GHCi-specific flag settings (printing/ debugger), as well as non-language dynamic flag settings :show languages show active language flags :show packages show active package flags as well as implicitly loaded packages ] [FIX #1838: use System.Directory.getHomeDirectory instead of getEnv "HOME" Simon Marlow **20071107100653] [catch up with removal of config.mk in the readline package Simon Marlow **20071107095952] [Fix Trac #1813: generalise over *all* type variables at top level, even phantom ones simonpj@microsoft.com**20071106153151 See Note [Silly type synonym] in TcType for further details. This bug (or at least infelicity) has been in GHC for quite a long time. ] [Fix Trac #1814 (staging interaction in Template Haskell and GHCi), and add comments simonpj@microsoft.com**20071106135548 An Id bound by GHCi from a previous Stmt is Global but Internal, and I'd forgotten that, leading to unnecessary restrictions when using TH and GHCi together. This patch fixes the problem and adds lots of explanatory comments (which is where most of the extra lines come from). ] [Improve error messages simonpj@microsoft.com**20071106105258] [Improve manual entry for binding lexically scoped type variables in pattern signatures simonpj@microsoft.com**20071106105151] [Remove trailing spaces from programlisting lines simonpj@microsoft.com**20071106104921] [Remove unhelpful sentence (see Trac #1832) simonpj@microsoft.com**20071106104315 Merge to 6.8 branch ] [fix stage 1 compilation Simon Marlow **20071106142057] [warning police Simon Marlow **20071106140538] [GHC API: add checkAndLoadModule Simon Marlow **20071106140121 Does what the name suggests: it performs the function of both checkModule and load on that module, avoiding the need to process each module twice when checking a batch of modules. This will make Haddock and ghctags much faster. Along with this is the beginnings of a refactoring of the HscMain interface. HscMain now exports functions for separately running the parser, typechecher, and generating ModIface and ModDetails. Eventually the plan is to complete this interface and use it to replace the existing one. ] [update to use latest changes to the GHC API (works much quicker now) Simon Marlow **20071106135430] [warning police Simon Marlow **20071106104019] [Various improvements Simon Marlow **20071105164054 - take the GHC topdir as a runtime argument - deal with files one at a time (fix space leak) ] [build ghctags-inplace Simon Marlow **20071105163954] [updates to ghctags code Simon Marlow **20071105163927] [eliminate a bit of duplication Simon Marlow **20071105143714] [catch up with changes to checkModule Simon Marlow **20071105142217] [reorder the imports Simon Marlow **20070625134151] [add $(GHCTAGS) Simon Marlow **20070625133450] [follow changes in HsRecFields Simon Marlow **20070625133119] [merged patches relating to GhcTags from #946 Simon Marlow **20070625132158 * accomodate changes in the GHC API * refactoring for more readable source code * if the whole group fails, try one file at a time * desperate attempts to handle the GHC build ] [Rules to create TAGS using ghctags Simon Marlow **20070625132047] [request for documentation of a new argument nr@eecs.harvard.edu**20070625131906] [new README file for utils/ghctags nr@eecs.harvard.edu**20061013202756] [proper HC entry for bootstrapping in Makefile Norman Ramsey **20060920042839] [first cut at missing case for ids defined in pattern Norman Ramsey **20060920042757] [change representation of FoundThing Norman Ramsey **20060917050800 refactored FoundThing to use GHC's native representation of source-code locations and to carry the module name so that the TAGS file can contain a qualified name as well as the unqualified name ] [get names of data constructors Norman Ramsey **20060917015539] [do notation for the Maybe monad Norman Ramsey **20060917003410] [load all files at once and compute tags for all Norman Ramsey **20060917002430] [tell GHC not to generate code (thanks Simon M) Norman Ramsey **20060917002353] [cover more cases; take GHC options on command line Norman Ramsey **20060916232755 Bit of a dog's breakfast here: * generate tags for more cases in the syntax * accept -package ghc and other args on command line * scrub away old code for snaffling thru text ] [initial, very incomplete tags generator Norman Ramsey **20060915235033 The ultimate goal is to replace hasktags with a tags generator based on GHC-as-a-library. This file is a very incomplete first cut. ] [Inline implication constraints simonpj@microsoft.com**20071105220807 This patch fixes Trac #1643, where Lennart found that GHC was generating code with unnecessary dictionaries. The reason was that we were getting an implication constraint floated out of an INLINE (actually an instance decl), and the implication constraint therefore wasn't inlined even though it was used only once (but inside the INLINE). Thus we were getting: ic = \d -> foo = _inline_me_ (...ic...) Then 'foo' gets inlined in lots of places, but 'ic' now looks a bit big. But implication constraints should *always* be inlined; they are just artefacts of the constraint simplifier. This patch solves the problem, by adding a WpInline form to the HsWrap type. ] [Comment warning about transparent newtypes simonpj@microsoft.com**20071105220744] [Wibble to earlier case-merge fix simonpj@microsoft.com**20071105220627 This fix avoids a bogus WARN in SimplEnv.substId ] [Improve pretty-printing of Core slightly (avoid indenting let bodies) simonpj@microsoft.com**20071105220535] [Fix an old but subtle bug in the Simplifier simonpj@microsoft.com**20071105161314 I got a Core Lint failure when compiling System.Win32.Info in the Win32 package. It was very delicate: adding or removing a function definition elsewhere in the module (unrelated to the error) made the error go away. Happily, I found it. In SimplUtils.prepareDefault I was comparing an InId with an OutId. We were getting a spurious hit, and hence doing a bogus CaseMerge. This bug has been lurking ever since I re-factored the way that case expressions were simplified, about 6 months ago! ] [Make CoreLint give a more informative error message simonpj@microsoft.com**20071105161217] [Comments about TH staging simonpj@microsoft.com**20071105145340] [Fix freeHaskellFunctionPtr for Darwin/i386 Aaron Tomb **20071029202636] [MERGED: Set interfacedir (using $topdir, not $httptopdir) Ian Lynagh **20071103180803 Mon Oct 29 10:48:25 PDT 2007 Ian Lynagh ] [Teach ghc-pkg about $httptopdir Ian Lynagh **20071029161130] [MERGED: installPackage needs to treat $httptopdir the same as $topdir Ian Lynagh **20071103180259 Sun Oct 28 06:45:34 PDT 2007 Ian Lynagh ] [MERGED: Define and use $httptopdir for the haddock docs locations Ian Lynagh **20071103180023 Sun Oct 28 05:35:52 PDT 2007 Ian Lynagh ] [We need to copy .buildinfo files into the bindists Ian Lynagh **20071028131752] [(>>>) now comes from GHC.Desugar Simon Marlow **20071102155954] [Refactor error recovery slightly simonpj@microsoft.com**20071102130115 Mostly this patch is refacoring, but it also avoids post-tc zonking if the typechecker found errors. This is good because otherwise with DEBUG you can get the "Inventing strangely-kinded TyCon" warning. ] [Avoid Haddock bug #1821 simonpj@microsoft.com**20071102130043] [Update error message to mention -XPatternSignatures instead of -fglasgow-exts simonpj@microsoft.com**20071101180302] [Rejig the error messages a bit; fixes a minor bug simonpj@microsoft.com**20071101175022 The type checker was only reporting the first message if an equality failed to match. This patch does a bit of refactoring and fixes the bug, which was in the bogus use of eqInstMisMatch in tcSimplify.report_no_instances.b This is really a bug in 6.8 too, so this would be good to merge across to the 6.8 branch. ] [Refactor Haddock options David Waern **20071101131757 This patch renames the DOC_OPTIONS pragma to OPTIONS_HADDOCK. It also adds "-- # ..."-style Haddock option pragmas, for compatibility with code that use them. Another change is that both of these two pragmas behave like OPTIONS_GHC, i.e. they are only allowed at the top of the module, they are ignored everywhere else and they are stored in the dynflags. There is no longer any Haddock options in HsSyn. Please merge this to the 6.8.2 branch when 6.8.1 is out, if appropriate. ] [clean ghci-inplace Simon Marlow **20071031093932] [clean Haddock droppings Simon Marlow **20071031093923] [Fix warning in OSMem for darwin Manuel M T Chakravarty **20071030133003] [FIX BUILD: a glitch in the new rules and inlining stuff simonpj@microsoft.com**20071030113857 Don't re-add the worker info to a binder until completeBind. It's not needed in its own RHS, and it may be replaced, via the substitution following postInlineUnconditionally. (Fixes build of the stage2 compiler which fell over when Coercion.lhs was being compiled.) ] [Fix LiberateCase simonpj@microsoft.com**20071029170620 Merge to STABLE please Liberate case was being far too gung-ho about what to specialise. This bug only showed up when a recursive function 'f' has a nested recursive function 'g', where 'g' calls 'f' (as well as recursively calling 'g'). This exact situation happens in GHC/IO.writeLines. This patch puts things right; see Note [When to specialise]. Result: much less code bloat. ] [Improve error-message output slightly simonpj@microsoft.com**20071029162637] [Improve documentation of orphan instances (thanks to Adrian Hey) simonpj@microsoft.com**20071029162505 Please push to stable branch Simon ] [fix installation of haddock.css and friends Simon Marlow **20071029120732] [In a pattern binding, a type sig in the pattern cannot bind a type variable simonpj@microsoft.com**20071027153330 In a pattern binding with a pattern type signature, such as (Just (x::a)) = e the pattern type signature cannot bind type variables. Hence 'a' must be in scope already for the above example to be legal. This has been the situation for some time, but Dan changed it when adding view patterns. This one-line change restores the old behaviour. ] [Substantial improvement to the interaction of RULES and inlining simonpj@microsoft.com**20071029111056 (Merge to 6.8 branch after testing.) There were a number of delicate interactions between RULEs and inlining in GHC 6.6. I've wanted to fix this for a long time, and some perf problems in the 6.8 release candidate finally forced me over the edge! The issues are documented extensively in OccurAnal, Note [Loop breaking and RULES], and I won't duplicate them here. (Many of the extra lines in OccurAnal are comments!) This patch resolves Trac bugs #1709, #1794, #1763, I believe. ] [Add newline in debug print simonpj@microsoft.com**20071026150224] [Explicit pattern match in default case of addTickLHsBind simonpj@microsoft.com**20071024134828] [Generalise the types of mk_FunBind, mk_easy_FunBind, mkVarBind simonpj@microsoft.com**20071024134750] [Fix the build with GHC < 6.4 (foldl1' didn't exist) Ian Lynagh *-20071027210526] [Fix the build with GHC < 6.4 (foldl1' didn't exist) Ian Lynagh **20071027210526] [MERGED: We need to install-docs when making the Windows bindist Ian Lynagh **20071027203220] [We need to set _way=* in rts/ both when making and installing bindists Ian Lynagh **20071027142914 This is a hack, but it means we get libHSrts*.a etc rather than just libHSrts.a. ] [Fix a whole heap of speling errrs in the docs Josef Svenningsson **20071007213858] [Only build/install the man page if XSLTPROC is defined Ian Lynagh **20071027122155] [install the Cabal docs, and make them show up in a binary distribution Simon Marlow **20071026122456] [cp => $(CP) Simon Marlow **20071026111054] [get rid of the html subdirectory under share/doc/ghc/users_guide Simon Marlow **20071026110919] [Make 'improvement' work properly in TcSimplify simonpj@microsoft.com**20071027155459 (Please merge this, and the preceding handful from me to the 6.8 branch.) This patch fixes a serious problem in the type checker, whereby TcSimplify was going into a loop because it thought improvement had taken place, but actually the unificataion was actually deferred. We thereby fix Trac #1781, #1783, #1795, and #1797! In fixing this I found what a mess TcSimplify.reduceContext is! We need to fix this. The main idea is to replace the "improvement flag" in Avails with a simpler and more direct test: have any of the mutable type variables in the (zonked) 'given' or 'irred' constraints been filled in? This test uses the new function TcMType.isFilledMetaTyVar; the test itself is towards the end of reduceContext. I fixed a variety of other infelicities too, and left some ToDos. ] [An implication constraint can abstract over EqInsts simonpj@microsoft.com**20071027155433] [In an AbsBinds, the 'dicts' can include EqInsts simonpj@microsoft.com**20071027154903 An AbsBinds abstrats over evidence, and the evidence can be both Dicts (class constraints, implicit parameters) and EqInsts (equality constraints). So we need to - use varType rather than idType - use instToVar rather than instToId - use zonkDictBndr rather than zonkIdBndr in zonking It actually all worked before, but gave warnings. ] [More notes simonpj@microsoft.com**20071027154702] [Comments only simonpj@microsoft.com**20071027154642] [Add anyM to IOEnv simonpj@microsoft.com**20071027154551] [Add a note to NOTES simonpj@microsoft.com**20071027100220] [Make compileToCore return the module name and type environment along with bindings Tim Chevalier **20071027100530 compileToCore returned just a list of CoreBind, which isn't enough, since to do anything with the resulting Core code, you probably also want the type declarations. I left compileToCore as it is, but added a function compileToCoreModule that returns a complete Core module (with module name, type environment, and bindings). I'm not sure that returning the type environment is the best way to represent the type declarations for the given module, but I don't want to reinvent the External Core wheel for this. ] [binary-dist: Makefile-vars needs HADDOCK_DOCS=YES Simon Marlow **20071025135816] [fix the links in the library documentation index Simon Marlow **20071025152245] [default to installing runhaskell and hsc2hs again, but provide knobs to turn them off Simon Marlow **20071025084222] [Adding hpc documentation about sum and map, push to STABLE. andy@unsafeperformio.com**20071025050341] [Fixing typo in runtime documentation for hpc, push to stable andy@unsafeperformio.com**20071025045456] [Correct a comment Ian Lynagh **20071024114549] [Fix ghc package in bindists; it wasn't adding the depenedency on readline Ian Lynagh **20071024120633] [Fix installing the ghc package .hi files in a bindist Ian Lynagh **20071024114219] [Build the manpage when building, not when installing Ian Lynagh **20071024112914] [Hack to make sure we get all the RTS ways in bindists Ian Lynagh **20071024004155] [Fix installing the documentation in the bindists Ian Lynagh **20071023234624] [-ftype-families -> -XTypeFamilies Ian Lynagh **20071024142828] [FIX #1791: fail with out-of-heap when allocating more than the max heap size in one go Simon Marlow **20071024095420 Normally the out-of-heap check is performed post-GC, but there are cases where we can detect earlier that we definitely have exhausted the heap size limit. ] [Fix more warnings Simon Marlow **20071023131351] [FIX BUILD (on 32-bit platforms): hs_hpc_module() type mismatch Simon Marlow **20071023082233] [patch from #1782; fixes check-packages target on Solaris Simon Marlow **20071022133337] [add PIC relocations for x86_64, and use a simpler hack in place of x86_64_high_symbol() Simon Marlow **20071018125220 This is Wolfgang Thaller's patch sent to cvs-ghc recently, with extra commentary by me. It turns out that this patch is not just a cleanup, it is also necessary for GHCi to work on x86_64 with shared libraries, because previously lookupSymbol() was creating jump-table entries for all symbols looked up that resolved outside 2Gb, whereas Wolfgang's version only generates jump-table entries for 32-bit symbol references in object code that we load. ] [fix creation of ghc-inplace for non-std ways Simon Marlow **20071017152820] [remove an incorrect assertion Simon Marlow **20071016151829] [second attempt to fix C compiler warnings with -fhpc Simon Marlow **20071019133243 The hs_hpc_module() prototype in RtsExternal.h didn't match its usage: we were passing StgWord-sized parameters but the prototype used C ints. I think it accidentally worked because we only ever passed constants that got promoted. The constants unfortunately were sometimes negative, which caused the C compiler to emit warnings. I suspect PprC.pprHexVal may be wrong to emit negative constants in the generated C, but I'm not completely sure. Anyway, it's easy to fix this in CgHpc, which is what I've done. ] [Zonk quantified tyvars with skolems Manuel M T Chakravarty **20071019115653 We used to zonk quantified type variables to regular TyVars. However, this leads to problems. Consider this program from the regression test suite: eval :: Int -> String -> String -> String eval 0 root actual = evalRHS 0 root actual evalRHS :: Int -> a evalRHS 0 root actual = eval 0 root actual It leads to the deferral of an equality (String -> String -> String) ~ a which is propagated up to the toplevel (see TcSimplify.tcSimplifyInferCheck). In the meantime `a' is zonked and quantified to form `evalRHS's signature. This has the *side effect* of also zonking the `a' in the deferred equality (which at this point is being handed around wrapped in an implication constraint). Finally, the equality (with the zonked `a') will be handed back to the simplifier by TcRnDriver.tcRnSrcDecls calling TcSimplify.tcSimplifyTop. If we zonk `a' with a regular type variable, we will have this regular type variable now floating around in the simplifier, which in many places assumes to only see proper TcTyVars. We can avoid this problem by zonking with a skolem. The skolem is rigid (which we requirefor a quantified variable), but is still a TcTyVar that the simplifier knows how to deal with. ] [Fix typo that prevented zonking of rhs of EqInsts Manuel M T Chakravarty **20071018131040 MERGE TO STABLE ] [implement #1468, :browse on its own uses the currently-loaded module Simon Marlow **20071019115751] [FIX #1784: EM_AMD64 and EM_X86_64 might both be defined to the same value Simon Marlow **20071019110223] [Tell Cabal what it's version number is while bootstrapping it Duncan Coutts **20071018222128 This means that it'll work with all the packages that specify a cabal-version ] [FIX #1450: asynchronous exceptions are now printed by +RTS -xc Simon Marlow **20071018134951] [fix -fbreak-on-exception for unregsterised Simon Marlow **20071018110621] [fix :print when !tablesNextToCode Simon Marlow **20071018105340] [fix breakpoints in unregisterised mode Simon Marlow **20071018101929] [Change some ints to unsigned ints Simon Marlow **20071018095503 Fixes some gratuitous warnings when compiling via C with -fhpc ] [fix warnings when compiling via C Simon Marlow **20071018095417] [rollback "accounting wibble: we were missing an alloc_blocks .. " Simon Marlow **20071018094415 I misread the code, now added a comment to explain why it isn't necessary ] [recordMutable: test for gen>0 before calling recordMutableCap Simon Marlow **20071017125657 For some reason the C-- version of recordMutable wasn't verifying that the object was in an old generation before attempting to add it to the mutable list, and this broke maessen_hashtab. This version of recordMutable is only used in unsafeThaw#. ] [re-instate missing parts of "put the @N suffix on stdcall foreign calls in .cmm code" Simon Marlow **20071017144007 These changes were apparently lost during "massive changes to add a 'zipper' representation of C-" ] [Don't barf on error message with non-tc tyvars Manuel M T Chakravarty **20071018060336 MERGE TO STABLE ] [Fix deferring on tyvars in TcUnify.subFunTys Manuel M T Chakravarty **20071018044352] [TcUnify.subFunTys must take type families into account Manuel M T Chakravarty **20071017114326 * A bug reported by Andrew Appleyard revealed that subFunTys did take neither type families nor equalities into account. In a fairly obscure case there was also a coercion ignored. ] [Refactoring: extract platform-specific code from sm/MBlock.c Simon Marlow **20071017134145 Also common-up some duplicate bits in the platform-specific code ] [fix an error message (barf -> sysErrorBelch) Simon Marlow **20071017121855] [fix warning on Windows Simon Marlow **20071017121645] [Don't clean gmp when validating (speeds up validation on Windows) Simon Marlow **20071017100908] [document float2Int# and double2Int# Simon Marlow **20070925121139] [Update HsExpr.hi-boot-6 for view pattern changes simonpj@microsoft.com**20071017120212] [Fix #1709: do not expose the worker for a loop-breaker simonpj@microsoft.com**20071016131840 The massive 'Uni' program produced a situation in which a function that had a worker/wrapper split was chosen as a loop breaker. If the worker is exposed in the interface file, then an importing module may go into an inlining loop: see comments on TidyPgm.tidyWorker. This patch fixes the inlining bug. The code that gives rise to this bizarre case is still not good (it's a bunch of implication constraints and we are choosing a bad loop breaker) but the first thing is to fix the bug. It's rather hard to produce a test case! Please merge to the 6.8 branch. ] [Fix #1662: do not simplify constraints for vanilla pattern matches simonpj@microsoft.com**20071016124710 See Note [Arrows and patterns] in TcPat. This fixes Trac 1662. Test is arrows/should_compile/arrowpat.hs Please merge ] [Eliminate over-zealous warning in CoreToStg simonpj@microsoft.com**20071016124606] [Show inlined function in the header of 'Inlining done' message simonpj@microsoft.com**20071016124535] [Show program size in the simplifier-bailing-out message simonpj@microsoft.com**20071016124450] [View patterns, record wildcards, and record puns Dan Licata **20071010150254 This patch implements three new features: * view patterns (syntax: expression -> pat in a pattern) * working versions of record wildcards and record puns See the manual for detailed descriptions. Other minor observable changes: * There is a check prohibiting local fixity declarations when the variable being fixed is not defined in the same let * The warn-unused-binds option now reports warnings for do and mdo stmts Implementation notes: * The pattern renamer is now in its own module, RnPat, and the implementation is now in a CPS style so that the correct context is delivered to pattern expressions. * These features required a fairly major upheaval to the renamer. Whereas the old version used to collect up all the bindings from a let (or top-level, or recursive do statement, ...) and put them into scope before renaming anything, the new version does the collection as it renames. This allows us to do the right thing with record wildcard patterns (which need to be expanded to see what names should be collected), and it allows us to implement the desired semantics for view patterns in lets. This change had a bunch of domino effects brought on by fiddling with the top-level renaming. * Prior to this patch, there was a tricky bug in mkRecordSelId in HEAD, which did not maintain the invariant necessary for loadDecl. See note [Tricky iface loop] for details. ] [FIX profiling after my storage manager changes Simon Marlow **20071015103939] [More docu for skolemOccurs Manuel M T Chakravarty **20071015075644] [Slightly improved comments in TcTyClsDecls Manuel M T Chakravarty **20071010142023] [TcTyFuns: remove some duplicate code Manuel M T Chakravarty **20071004142315] [TcTyFuns.eqInstToRewrite Manuel M T Chakravarty **20071003145715] [Add allocateInGen() for allocating in a specific generation, and cleanups Simon Marlow **20071012124413 Now allocate() is a synonym for allocateInGen(). I also made various cleanups: there is now less special-case code for supporting -G1 (two-space collection), and -G1 now works with -threaded. ] [optimise isAlive() Simon Marlow **20071012103810] [accounting wibble: we were missing an alloc_blocks++ in allocateLocal() Simon Marlow **20071012101711] [threadStackOverflow should be using allocateLocal Simon Marlow **20071012100405] [FIX #1759 while respecting the ticks andy@galois.com**20071015033319] [Improving the combine mode for hpc andy@galois.com**20071014171009 we now have Processing Coverage files: sum Sum multiple .tix files in a single .tix file combine Combine two .tix files in a single .tix file map Map a function over a single .tix file Where sum joins many .tix files, combine joins two files (with extra functionality possible), and map just applied a function to single .tix file. These changes were improvements driven by hpc use cases. END OF DESCRIPTION*** Place the long patch description above the ***END OF DESCRIPTION*** marker. The first line of this file will be the patch name. This patch contains the following changes: M ./utils/hpc/Hpc.hs -1 +3 M ./utils/hpc/HpcCombine.hs -33 +84 M ./utils/hpc/HpcFlags.hs -11 +59 ] [Fix DoCon: Another try at getting extractResults right simonpj@microsoft.com**20071012162325 For some reason TcSimplify.extractResults is quite difficult to get right. This is another attempt; finally I think I have it. Strangely enough, it's only Sergey's DoCon program that shows up the bug, which manifested as a failure in the Simplifier lookupRecBndr $dGCDRing{v a1Lz} [lid] But it was due to extractResults producing multiple bindings for the same dictionary. Please merge this to the stable branch (after previous patches to TcSimplify though). ] [mention what SCC stands for Simon Marlow **20071011135736] [Add a proper write barrier for MVars Simon Marlow **20071011135505 Previously MVars were always on the mutable list of the old generation, which meant every MVar was visited during every minor GC. With lots of MVars hanging around, this gets expensive. We addressed this problem for MUT_VARs (aka IORefs) a while ago, the solution is to use a traditional GC write-barrier when the object is modified. This patch does the same thing for MVars. TVars are still done the old way, they could probably benefit from the same treatment too. ] [we need to #include "Stg.h" first, we can't rely on GHC to inject it Simon Marlow **20071010153244 This fixes the unreg build, and in general building the RTS code via-C. I'm not sure at what stage this was broken, but I think it was working accidentally before. ] [Fix Trac #1680; check for unboxed tuples in TcType.marshalableTyCon simonpj@microsoft.com**20071011123426] [Fix Trac #1759: do not let ticks get in the way of spotting trivially-true guards simonpj@microsoft.com**20071010164731 GHC spots that an 'otherwise' guard is true, and uses that knowledge to avoid reporting spurious missing-pattern or overlaps with -Wall. The HPC ticks were disguising the 'otherwise', which led to this failure. Now we check. The key change is defining DsGRHSs.isTrueLHsExpr. Test is ds062 ] [Fix Trac #1755; check for stage errors in TH quoted Names simonpj@microsoft.com**20071010150250 There are a number of situations in which you aren't allowed to use a quoted Name in a TH program, such as \x -> 'x But we weren't checking for that! Now we are. Merge to stable branch. Test is TH_qname. ] [checkWellStaged: reverse comparsion (no change in semantics), plus some comments simonpj@microsoft.com**20071010124013] [Add traceTc in tcSimplifyDefault simonpj@microsoft.com**20071010123933] [Improve pretty-printing of splices in HsSyn simonpj@microsoft.com**20071010123726] [Fix Trac #1678; be more careful about catching and reporting exceptions in spliced TH monadic computations simonpj@microsoft.com**20071010145705 Many of the new lines are comments to explain the slightly-convoluted in which exceptions get propagated out of the Q monad. This fixes Trac 1679; test is TH_runIO (as well as the exising TH_fail). Please merge ] [Comments only simonpj@microsoft.com**20071010145646] [FIX BUILD (when compiling base via C): declare n_capabilities Simon Marlow **20071010103704] [GHCi: use non-updatable thunks for breakpoints Simon Marlow **20071010093241 The extra safe points introduced for breakpoints were previously compiled as normal updatable thunks, but they are guaranteed single-entry, so we can use non-updatable thunks here. This restores the tail-call property where it was lost in some cases (although stack squeezing probably often recovered it), and should improve performance. ] [FIX #1681: withBreakAction had too large a scope in runStmt Simon Marlow **20071010085820] [tiny refactoring Simon Marlow **20071009145002] [small reworking of the loop-breaker-choosing algorithm Simon Marlow **20071009145305 Previously inline candidates were given higher preference as non-loop-breakers than constructor applications, but the reason for this was that making a wrapper into a loop-breaker is to be avoided at all costs. This patch refines the algorithm slightly so that wrappers are explicitly avoided by giving them a much higher score, and other inline candidates are given lower scores than constructor applications. This makes almost zero difference to a complete nofib run, so it amounts to just a tidyup. ] [Fix warnings when build w/o readline Manuel M T Chakravarty **20071010101840] [Update documentation for win32 DLL linking Clemens Fruhwirth **20071010074415] [FIX: tidy up TcSimplify following equality constraints additions simonpj@microsoft.com**20071010093334 The combination of "type refinement" for GADTs and the new equality constraints has made TcSimplify rather complicated. And wrong: it generated bogus code for cholewo-eval. This patch is still far from entirely satisfactory. There are too many places where invariants are unclear, and the code is still a bit of a mess. But I believe it's better, and it passes the regression tests! So I think it's good enough for the 6.8 release. Please merge. The main changes are: - get rid of extractLocalResults (which was always suspicious) - instead, treat the 'refinement' along with 'givens', by adding a field to RedEnv, red_reft which travels with red_givens - I also reworked extractResults a bit, which looked wrong to me This entailed changing the Given constructor in Avail to take an Inst rather than a TcId ] [Improve pretty-printing for HsSyn simonpj@microsoft.com**20071010093058] [Fix Trac #1746: make rule-matching work properly with Cast expressions simonpj@microsoft.com**20070929104406 The Cast case of the rule-matcher was simply wrong. This patch fixes it; see Trac #1746. I also fixed the rule generation in SpecConstr to generate a wild-card for the cast expression, which we don't want to match on. This makes the rule more widely applicable; it wasn't the cause of the bug. ] [Small comment only simonpj@microsoft.com**20070929104309] [export n_capabilities, see #1733 Simon Marlow **20071009142701] [FIX #1743, create a fresh unique for each Id we bind at a breakpoint Simon Marlow **20071009142554] [remove vestiges of way 'u' (see #1008) Simon Marlow **20071009130942] [also call initMutex on every task->lock, see #1391 Simon Marlow **20071009122409] [remove the "-unreg" flag and the unregisterised way, see #1008 Simon Marlow **20071009122338] [warning removal Simon Marlow **20071009105138] [warning removal Simon Marlow **20071003170005] [refactoring only: use the parameterised InstalledPackageInfo Simon Marlow **20071003163536 This required moving PackageId from PackageConfig to Module ] [warning removal Simon Marlow **20071003174016] [warning removal Simon Marlow **20071003173448] [warning removal Simon Marlow **20071003173202] [warning removal Simon Marlow **20071003172715] [remove most warnings Simon Marlow **20071003090804] [mkIfaceExports: sort the children of AvailTC Simon Marlow **20071002114917 This fixes a problem with spurious recompilations: each time a module was recompiled, the order of the children would change, causing extra recompilation. MERGE TO STABLE ] [error message fix (#1758) Simon Marlow **20071008134958] [FIX validate for PPC Mac OS X - RegAllocStats.hs Thorkil Naur **20071005144105] [FIX validate for PPC Mac OS X - RegAllocLinear.hs Thorkil Naur **20071005143607] [FIX validate for PPC Mac OS X - Linker.c Thorkil Naur **20071005144908] [FIX validate for PPC Mac OS X - Evac.h Thorkil Naur **20071005144454] [FIX #1748: -main-is wasn't handling the case of a single hierarchical module Simon Marlow **20071008131305 test case is driver062.5 ] [FIX BUILD FD_SETSIZE signed jochemberndsen@dse.nl**20070927132649 On FreeBSD FD_SETSIZE is unsigned. Cast it to a signed int for portability. ] [FIX BUILD addDLL returns const char* jochemberndsen@dse.nl**20070927132619 addDLL returns const char*, not just a char*. Fix compiler warning ] [FIX BUILD `set -o igncr'-issue on FreeBSD jochemberndsen@dse.nl**20070926203750 `set -o igncr' does not work on non-cygwin-systems. Fail silently if this command does not work, instead of aborting the build. ] [comment-out "use vars" in 3 places (see #1739) Simon Marlow **20071008115740] [Change DOCOPTIONS pragma to DOC_OPTIONS David Waern **20071002143849 MERGE TO STABLE ] [FIX: parsing of doc options David Waern **20071002143713 Lexing of the doc options pragma was changed, but but no change was made to the parser to reflect that. This patch fixes this problem. MERGE TO STABLE ] [FIX: add missing case to OccName.isSymOcc David Waern **20071002143459] [Remove warnings from WwLib Manuel M T Chakravarty **20071002130736] [FIX: mkWWcpr takes open alg types into account Manuel M T Chakravarty **20071002130407 - This fixed the failures of GMapAssoc and GMapTop for optmising ways MERGE TO STABLE ] [FIX #1738: KPush rule of FC must take dataConEqTheta into account Manuel M T Chakravarty **20071001154343 MERGE TO STABLE ] [FIX #1729: Don't try to expand syn families with -XLiberalTypeSynonyms Manuel M T Chakravarty **20070929122624 MERGE TO STABLE ] [Some more traceTcs Manuel M T Chakravarty **20070929121941] [FIX: Make boxy splitters aware of type families Manuel M T Chakravarty **20070928225541 MERGE TO STABLE ] [Finally, I managed to squash an infamous bug in :print Pepe Iborra **20070927151300 It turns out the newtype handling code in :print was slipping non mutable Tyvars in the types reconstructed. The error message eventually produced was rather obscure: [src/Tp.hs:75:28-64] *MainTp> :p x *** Exception: No match in record selector Var.tcTyVarDetails [src/Tp.hs:75:28-64] *MainTp> Due to non mutable tyvars, unifyType was failing. A well placed assertion in the unifyType code would have made my life much easier. Which reminds me I should install a -ddump-* system in the RTTI subsystem, or future hackers will run away in swearing. MERGE TO STABLE ] [Be a bit more flexible in terminal identification for do_bold Pepe Iborra **20070927141549 In Os X for instance, by default we have TERM=xterm-color MERGE TO STABLE ] [html_installed_root shouldn't contain $$pkgid Ian Lynagh **20070927130427 This actually didn't break anything, as the shell expanded $pkgid to the empty string, but it was still wrong. ] [Comments and debug output only simonpj@microsoft.com**20070927110842] [further stub filename fix: I managed to break non-stubdir -fvia-C compilation Simon Marlow **20070927102539] [also acquire/release task->lock across fork() Simon Marlow **20070927091331 further attempt to fix #1391 on MacOS ] [FIX -stubdir bug: the .hc file was #including the wrong _stub.h filename Simon Marlow **20070926134539 Using -stubdir together with hierarchical modules, -fvia-C, and --make is essentially broken in 6.6.x. Recently discovered by Cabal's use of -stubdir. Test cases: driver027/driver028 (I've updated them to use -fvia-C, in order to test for this bug). ] [Add STANDARD_OPTS to SRC_HC_OPTS in rts/Makefile so we get -I../includes for .cmm files Ian Lynagh **20070926122637 Patch from Clemens Fruhwirth ] [fix #1734, panic in :show modules after load failure Simon Marlow **20070926100732] [Remove current package from preloaded package set Clemens Fruhwirth **20070926084802] [Fixing #1340, adding HPC Documentation andy@galois.com**20070926055331] [TAG 2007-09-25 Ian Lynagh **20070925164536] [fix to previous fix to THUNK_SELECTOR machinery Simon Marlow **20070925132600 It turns out I didn't get it quite right in the case of compacting collection. This should make it work again. ] [Be more specific about file-header pragmas simonpj@microsoft.com**20070924162847 Document the rules for pragmas that must occur at the top of a file. Please merge this patch ] [comments only: point to relevant bug reports Simon Marlow **20070924103323] [FIX #1038: failure of selector-thunk machinery to do its job Simon Marlow **20070917151834 After a couple of abortive attempts, I think I've got this right. When the GC sees a chain of the form snd (_, snd (_, snd (_, ...))) it can now deal with an arbitrary nesting depth, whereas previously it had a depth limit which was necessitated by the use of recursion. Now we chain all the selector thunks together in the heap, and go back and update them all when we find the value at the end of the chain. While I was here I removed some old cruft in eval_thunk_selector() which was carefully manintaing invariants that aren't necessary any more, the main one being that evacuate() can safely be passed a to-space pointer now. In addition to validate I've tested building a stage3 compiler with and without +RTS -c, so I'm reasonably sure this is safe. ] [attempt to fix #1391, hold locks across fork() and initialize them in the child Simon Marlow **20070914145519] [Put packages in ../$$pkgid not ../$$pkg Ian Lynagh **20070923204940] [Notice when C modules have changed when deciding whether or not to link Ian Lynagh **20070923181620 Based on a patch from Lemmih ] [Whitespace changes only Ian Lynagh **20070923174242] [Remove remaining bits of bindist "make in-place" Ian Lynagh **20070923163640] [Add an entry for strings treated as ISO-8859-1 to the users guide bug list Ian Lynagh **20070923131845] [Fix bug #1725 (Haddock links between packages) sven.panne@aedion.de**20070923120636 Resolving this bug is a bit tricky, it boils down to the question: Should the Haddock links between packages include the package version or not? Pro: We can differentiate between various versions of the same package, installed all at once. (How often does this really happen in practice?) Cons: When package A refers to a package B, and B is later upgraded, links in A's documentation will break. Furthermore, if an *additional* version of B is installed, which version should A refer to? Because IMHO it is not clear what to do when version numbers are included, let's leave them out. If somebody has a better idea, feel free to submit a better patch. MERGE TO STABLE ] [Unbreak "dist" target for fresh trees sven.panne@aedion.de**20070923094358 The previous hack to include Parser.hs in source distros broke the possibility of doing a "make dist" in a fresh tree, i.e. one which has just been checked out and configured, but *not* built. Of course you will need Happy for such a source distro later, but at least the freedom to do this is important. The ultimate goal should be that something like "make dist" will work in a freshly checked out tree, with no prerequisite steps (this is very common in most projects). We should move towards that goal, not away from it... MERGE TO STABLE ] [make stamp.inplace-gcc-lib copy $(LD) instead of $(GccDir)ld.exe to avoid building problem shelarcy **20070920130159] [Removed duplicate entry for derbugging flag -ddump-tc from the user guide v.dijk.bas@gmail.com**20070920121306] [Fix building with compilers which don't have an integer for a patch level Ian Lynagh **20070921165316] [Move OPTIONS pragmas above comments Ian Lynagh **20070921163552 Fixes building with -Werror (i.e. validate) and GHC < 6.6 ] [massive convulsion in ZipDataflow Norman Ramsey **20070921134124 After my talk, I got the idea of 'shallow rewriting' for the dataflow framework. Here it is implemented, along with some related ideas late making Graph and not LGraph primary. The only bad thing is that the whole bit is stitched together out of ill-fitting pieces, kind of like Frankenstein's monster. A new ZipDataflow will rise out of the ashes. ] [incomplete start on set of intervals for stack model Norman Ramsey **20070921134035] [Small changes to mk-ing flow graphs simonpj@microsoft.com**20070919150544 - ZipCfg: add mkBlockId :: Unique -> BlockId - MkZipCfg: change sequence --> catAGrpahs - MkZipCfgCmm: add mkCmmIfThen Not fully validated, but I don't think anything will break ] [Mostly comments, following NR/SPJ meeting simonpj@microsoft.com**20070919150345] [Remove a redundant part of distrib/Makefile's "make install" Ian Lynagh **20070920183903] [Fix Trac #1718: interaction of error, unlifted tuples, and casts simonpj@microsoft.com**20070920120049 See Note [Float coercions (unlifted)] in Simplify Test is simpl018 ] [Hack to get haskell-src's Parser.hs into source distributions Ian Lynagh **20070919194222] [Fix --print-docdir for relocatable builds; fixes #1226 Ian Lynagh **20070919140100] [Use $(RelocatableBuild) rather than $(Windows) Ian Lynagh **20070919140037] [Fix exponential-time behaviour with type synonyms; rename -XPartiallyAppliedTypeSynonyms to -XLiberalTypeSynonyms simonpj@microsoft.com**20070919171207 Fixes exponential behaviour present in GHC 6.6! I renamed the flag because the old (not very old) name wasn't describing what it does. ] [FIX #1688: Givens in checkLoop are not that rigid after all Manuel M T Chakravarty **20070919150738 - This patch re-instates the policy of 6.6.1 to zonk the given constraints in the simplifier loop. MERGE TO STABLE ] [FIX #1713: watch out for type families in splitAppTy functions Manuel M T Chakravarty **20070919122011 MERGE TO STABLE ] [Catch any exceptions thrown by getEnv; fixes #1704 Ian Lynagh **20070918215752] [Make the error message mentioning -XPatternSignatures spell the flag correctly simonpj@microsoft.com**20070919142821] [Give Windows its own definitions of docdir (and htmldir etc) Ian Lynagh **20070918201249] [Include build.mk or validate{,-settings}.mk through custom-settings.mk Ian Lynagh **20070918200637] [Install extra-gcc-opts in bindists Ian Lynagh **20070918194839] [Add validate.mk to .darcs-boring Ian Lynagh **20070918184509] [add support for EM_AMD64 elf machine type, openbsd/amd64 ghci works Don Stewart **20070916034845] [patch Linker.c for amd64/openbsd Don Stewart **20070916012728] [MERGED: Another attempt at getting bindists working everywhere Ian Lynagh **20070918163331 Ian Lynagh **20070916005328] { ] [Tune coalescing in non-iterative register allocator Ben.Lippmeier@anu.edu.au**20070917132614 If iterative coalescing isn't turned on, then do a single aggressive coalescing pass for the first build/color cycle and then back off to conservative coalescing for subseqent passes. Aggressive coalescing is a cheap way to eliminate lots of the reg-reg moves, but it can make the graph less colorable - if we turn it on for every pass then allocation for code with a large amount of register pressure (ie SHA1) doesn't converge in a sensible number of cycles. ] [Bugfix to iterative coalescer Ben.Lippmeier@anu.edu.au**20070917124241 Coalescences must be applied to the unsimplified graph in the same order they were found by the iterative coalescing algorithm - otherwise the vreg rewrite mapping will be wrong and badness will ensue. ] [Add -dasm-lint Ben.Lippmeier@anu.edu.au**20070917113024 When -dasm-lint is turned on the register conflict graph is checked for internal consistency after each build/color pass. Make sure that all edges point to valid nodes, that nodes are colored differently to their neighbours, and if the graph is supposed to be colored, that all nodes actually have a color. ] [Count CmmTops processed so far in the native code generator Ben.Lippmeier@anu.edu.au**20070914164234 To help with debugging / nicer -ddump-asm-regalloc-stages ] [Change spill cost function back to inverse length of live range. Ben.Lippmeier@anu.edu.au**20070914161408 On further testing it turns out that using Chaitin's spill cost formula of counting the number of uses of a var and then dividing by the degree of the node isn't actually a win. Perhaps because this isn't counting the number of actual spills inserted in the output code. This would be worth revisiting if other work manages to increase the register pressure in the native code. ] [Replace missing '#' on options pragma Ben.Lippmeier@anu.edu.au**20070914094320] [Better cleaning of spills in spill cleaner Ben.Lippmeier@anu.edu.au**20070914093907 Track what slots each basic block reloads from. When cleaning spill instructions we can use this information to decide whether the slot spilled to will ever be read from on this path. ] [added node to push a closure onto the current call context Norman Ramsey **20070917172939] [tightened some dataflow code as part of preparing a talk Norman Ramsey **20070917161715] [added 'filterRegsUsed' to CmmExpr Norman Ramsey **20070917161634] [Writing out .tix file only if you are the original process, not a child. andy@galois.com**20070917230641 This lets us gain coverage on programs that use fork, like xmonad. * To be merged to STABLE * ] [removing the functions hs_hpc_read and hs_hpc_write inside Hpc.c, they are dead code. andy@galois.com**20070917230201 * To be merged to STABLE. * ] [Clean stage/ghc-inplace.c Ian Lynagh **20070917094300] [Comments only simonpj@microsoft.com**20070917161133] [Loosen the syntax of types slightly simonpj@microsoft.com**20070917160708 This change allows you to write f :: (Eq a) => (Ord b) => a -> b -> b Previously you could only have a forall and context after '->' but not after '=>' which is strange and inconsistent. Making the parser a bit more generous didn't change the number of shift/reduce conflicts. tc236 tests. ] [avoid platform dependencies: my_uintptr_t ==> StgWord Simon Marlow **20070917120156] [FIX: TypeFamilies: should_compile/Simple12 Manuel M T Chakravarty **20070916130419 - checkTauTvUpdate now distinguishes between whether (1) a type variables occurs only in type family parameters (in which case unification is to be deferred) (2) other variable occurences (which case we fail with a cannot create infinite type message, as before) ] [Keep valgrind happy when calling timer_create sven.panne@aedion.de**20070916111927 Fill all of the sigevent structure with zeroes before individual fields are set. Although not strictly necessary, this keeps tools like valgrind from complaining about passing uninitialized data, which is a good thing. MERGE TO STABLE ] [reloads are now sunk as deep as possible Norman Ramsey **20070915215414] [added instance declarations so we can fold over local registers used in Middle and Last nodes Norman Ramsey **20070915215337] [added monadic mapM_blocks. the fear, the fear... Norman Ramsey **20070915215303] [fix misspelled constructor Norman Ramsey **20070915215238] [add another way to run in the fuel monad (this is a mess right now) Norman Ramsey **20070915215138] [lay ground for more readable dumping of CmmGraph Norman Ramsey **20070915201849] [add a function to help identify unique predecessors Norman Ramsey **20070915201746] [scrub away remaining MidNop Norman Ramsey **20070915201719] [changes needed to get map_blocks to actually compile :-( Norman Ramsey **20070915201651] [remove an unwanted language extension Norman Ramsey **20070915201525] [drop the old, redundant implementation of postorder_dfs Norman Ramsey **20070915201448] [eliminate the last vestige of UniqSM from ZipCfg Norman Ramsey **20070915201414] [add map_blocks to ZipCfg Norman Ramsey **20070915201355] [get rid of MidNop Norman Ramsey **20070915201243] [get freshBlockId out of ZipCfg and bury it in MkZipCfg where it belongs Norman Ramsey **20070915201030] [Make DESTDIR work again sven.panne@aedion.de**20070916084339 installPackage is a horror, using --force is probably not the perfect way to make DESTDIR functionality work again, but given the current state of affairs, I can't find a quick and clean solution. MERGE TO STABLE ] [Resurrect the "lib" subdirectory in the installation tree, it was somehow lost sven.panne@aedion.de**20070916084122 Having all package directory directly in the toplevel installation directory would be a bad thing because of potential name clashes, and it wasn't done this way earlier, so reinstantiate the old layout. MERGE TO STABLE ] [Overhaul of the rewrite rules Manuel M T Chakravarty **20070915074119 - Cleaned up and simplified rules - Added many missing cases - The rules OccursCheck and swap have been eliminated and integrate with the other rules; ie, Subst and Unify perform the occurs check themselves and they can deal with left-to-right and right-to-left oriented rewrites. This makes the code simpler and more efficient. - Also added comments. ] [added foldUFM_Directly, used where appropriate, killed all warnings Norman Ramsey **20070915190617] [(temporarily) check consistency of new postorder DFS no matter what DEBUG is Norman Ramsey **20070915133904] [Wibbles to MkZipCfgCmm stuff simonpj@microsoft.com**20070914170119 Watch out: I've added MkZipCfg.sequence, which clashes with the Prelude (like some other names in MkZipCfg. Maybe you can think of a better name for it. ] [make remove_entry_label actually work inside ZipDataflow Norman Ramsey **20070914145435] [export 'entry' from ZipCfg, at least for now Norman Ramsey **20070914145417] [Remove export of remove_entry_label simonpj@microsoft.com**20070914135211] [replace #ifdef DEBUG with debugIsOn in cmm/MkZipCfg Norman Ramsey **20070914134202] [new signatures for splicing functions, new postorder_dfs Norman Ramsey **20070913173653] [tidying cmm/CmmSpillReload.hs Norman Ramsey **20070913173512] [tidying cmm/CmmLiveZ.hs Norman Ramsey **20070913173446] [Unbreak "clean" and "distclean" targets when there is no testsuite sven.panne@aedion.de**20070915085845] [Use sed to make stage-specific ghc-inplace.c's Ian Lynagh **20070914233446 When trying to do it with -D we were having trouble getting the double quotes through in all Windows configurations. ] [Fix copy+paste-o, spotted by Simon Marlow Ian Lynagh **20070914142650] [Add documentation about -shared, shared library name mangling, and a xrefs Clemens Fruhwirth **20070914204538] [distclean: ghcprof-inplace Simon Marlow **20070914125542] [distclean: /.depend[.bak] Simon Marlow **20070914125532] [distclean: extra-gcc-opts, testsuite Simon Marlow **20070914125444] [fix install-docs for non-html docs Simon Marlow **20070914093738] [Refer to "boot" libs, not "core" libs Ian Lynagh **20070914132658] [Give darcs-all a -s (silent) flag Ian Lynagh **20070913202330] [warning police Ben.Lippmeier@anu.edu.au**20070913161443] [Better calculation of spill costs / selection of spill candidates. Ben.Lippmeier@anu.edu.au**20070913155407 Use Chaitin's formula for calculation of spill costs. Cost to spill some vreg = (num writes + num reads) / degree of node With 2 extra provisos: 1) Don't spill vregs that live for only 1 instruction. 2) Always prefer to spill vregs that live for a number of instructions more than 10 times the number of vregs in that class. Proviso 2 is there to help deal with basic blocks containing very long live ranges - SHA1 has live ranges > 1700 instructions. We don't ever try to keep these long lived ranges in regs at the expense of others. Because stack slots are allocated from a global pool, and there is no slot coalescing yet, without this condition the allocation of SHA1 dosn't converge fast enough and eventually runs out of stack slots. Prior to this patch we were just choosing to spill the range with the longest lifetime, so we didn't bump into this particular problem. ] [comment wibbles Ben.Lippmeier@anu.edu.au**20070912160759] [Bump version number 6.7 -> 6.9 Ian Lynagh **20070913181733] [More library installation path fiddling Ian Lynagh **20070913174242] [libsubdir for libraries is now always $$pkgid Ian Lynagh **20070913173926] [Define RelocatableBuild variable Ian Lynagh **20070913155331 default YES on Windows, NO otherwise. ] [We need to thread lots more paths through installPackage to make bindists work Ian Lynagh **20070913154830] [Comments only simonpj@microsoft.com**20070913152440] [Comments, and remove export of checkAmbiguity simonpj@microsoft.com**20070911085734] [Define and use PprTyThing.pprTypeForUser simonpj@microsoft.com**20070911085123 When printing types for the user, the interactive UI often wants to leave foralls implicit. But then (as Claus points out) we need to be careful about name capture. For example with this source program class C a b where op :: forall a. a -> b we were erroneously displaying the class in GHCi (with suppressed foralls) thus: class C a b where op :: a -> b which is utterly wrong. This patch fixes the problem, removes GHC.dropForAlls (which is dangerous), and instead supplies PprTyThing.pprTypeForUser, which does the right thing. ] [Minor refactoring: give an explicit name to the pretty-printing function for TyThing, and use it simonpj@microsoft.com**20070911085005] [Improve documentation for Template Haskell simonpj@microsoft.com**20070911082212] [Better modelling of newtypes in the Term datatype Pepe Iborra **20070912165855 This helps to get pretty printing right, nested newtypes were not being shown correctly by :print ] [GHCi debugger: Added a -fprint-evld-with-show flag Pepe Iborra **20070912153505 The flag enables the use of Show instances in :print. By default they are not used anymore ] [Update .darcs-boring Ian Lynagh **20070913015704] [export stopTimer(), we need this in the unix package Simon Marlow **20070912200057] [move generic graph-colouring code into util Simon Marlow **20070912114110 It is needed by cmm/StackColor, and hence is needed even when there is no native code generator. ] [remove remaining redundancies from ZipCfgCmmRep Norman Ramsey **20070912165851 -- LastBranch no longer takes parameters -- LastJump and LastReturn no longer carry CmmActuals; instead, those are carried by a CopyOut in the same basic block ] [Forgot to import Data.List.find v.dijk.bas@gmail.com**20070912143346] [Remove warning flags from individual compiler modules Ian Lynagh **20070912162200 We now set the flags once and for all in compiler/Makefile. ] [Give push-all the ability to pull with a --pull flag Ian Lynagh **20070912140743 OK, so the name is a bit wrong now... ] [Handle doc-index*.html, not just doc-index.html Ian Lynagh **20070912135407 haddock sometimes makes doc-index-A.html etc files. Not sure why it doesn't for me. Patch from Judah Jacobson. ] [Fix installation code Ian Lynagh **20070912113954] [Further tweaking of haddock doc installation Ian Lynagh **20070911224734 On Windows we now always use a path beginning $topdir/ so bindists are relocatable. We also now tell "Setup configure" where we are putting the documentation, and tell installPackage to override as little as possible. ] [make in-place has bitrotted, so don't advertise or support it Ian Lynagh **20070911202202] [TAG ghc-6.8 branched 2007-09-03 Ian Lynagh **20070903155416] [Fix repeated section name in documentation. judah.jacobson@gmail.com**20070907211616] [Clean ups for multi-way building of the GHC package Clemens Fruhwirth **20070912171126] [change the zipper representation of calls Norman Ramsey **20070912153852 This patch combines two changes: 1. As requested by SimonPJ, the redundancy inherent in having LastCall bear actual parameters has been removed. The actual parameters are now carried by a separate CopyOut node. 2. The internal (to zipper) representation of calls has changed; the representation of calling conventions is more orthogonal, and there is now no such thing as a 'safe' or 'final' call to a CallishMachOp. This change has affected the interface to MkZipCfgCmm, which now provides a static guarantee. Simon's new upstream code will be affected; I've patched the existing code in CmmCvt (which becomes ever hairier). ] [make it easier to have debugging code typechecked even when debugging is turned off Norman Ramsey **20070912152502] [fix a typo! Norman Ramsey **20070912102545] [cleaned up all warnings (and added many type signatures) in Outputable Norman Ramsey **20070912102526] [overlooked ZipCfgExtras for a name change Norman Ramsey **20070912093920] [extra prettyprinting only when debugging Norman Ramsey **20070912093844] [renaming, reorganizing, and better doco for ZipCfg Norman Ramsey **20070911225542] [esacpe backslashes in the filename in the .rc file Simon Marlow **20070912111658] [Remove --export-all-symbols for DLL linking, it is default and prevents us from using .def files Clemens Fruhwirth **20070831104624] [Call windres with explicit preprocessor path in case gcc is not in $PATH Clemens Fruhwirth **20070806085120] [Weak.c incorrectly claims it's being compiled along RTS Main.c Clemens Fruhwirth **20070806084524] [Sign extension hack to work around PC64 relocation limitation for binutils <2.17 for x86_64. Clemens Fruhwirth **20070912094430 binutils <2.17 can't generate PC64 relocations for x86_64. Hence we emit only 32 bit PC relative offsets, and artifically stick a zero in front of them to make them 64 bit (see PprMach.sh ppr_item in pprDataItem). This works as long as the offset is <32bit AND it's positive. This is not the case for offsets in jump tables, they are all negative. This hack sign extends them with a MOVSXL instruction into the dead index register, then adding the properly sign extended offset to the jump table base label giving the correct target address for the following jump. ] [foldl1' was added to Data.List in GHC 6.4.x Simon Marlow **20070912110909] [update .hi-boot-6 to track .lhs-boot Simon Marlow **20070912104312] [update to track .lhs-boot file Simon Marlow **20070912103417] [Refactoring & documenting the Term pprinter used by :print Pepe Iborra **20070911180411] [Custom printer for the Term datatype that won't output TypeRep values Pepe Iborra *-20070911151454 The term pretty printer used by :print shouldn't output the contents of TypeRep values, e.g. inside Dynamic values ] [Try and rewrite reloads to reg-reg moves in the spill cleaner Ben.Lippmeier@anu.edu.au**20070911173833] [Fix type error in MkZipCfg Manuel M T Chakravarty **20070912010458 - Fixes a bug introduced with the patch named 'check for unreachable code only with -DDEBUG' - Breakage occured only without -DDEBUG (which is 'valdiate's default!) ] [scrape some unused barnacles off of ZipCfg and put them into ZipCfgExtras Norman Ramsey **20070911154533] [split the CmmGraph constructor interface from the representation Norman Ramsey **20070911150635 Interface MkZipCfgCmm should now be sufficient for all construction needs, though some identifiers are re-exported from (and explained in) MkZipCfg. ZipCfgCmmRep should be used only by modules involved in analysis, optimization, or translation of Cmm programs. ] [correct two single-identifier bugs that stopped the Adams optimization from working Norman Ramsey **20070911142914] [default ppr method for CmmGraph now tells more about the representation Norman Ramsey **20070911142701 (Previously, ppr had tried to make the zipper representation look as much like the ListGraph representation as possible. This decision was unhelpful for debugging, so although the old code has been retained, the new default is to tell it like it is. It may be possible to retire PprCmmZ one day, although it may be desirable to retain it as the internal form becomes less readable. ] [prettyprint 'hinted' things in a more readable way Norman Ramsey **20070911142535] [check for unreachable code only with -DDEBUG Norman Ramsey **20070911142410] [add a big diagnostic for failures in CmmCvt.toZgraph Norman Ramsey **20070911142338] [Don't try and coalesce nodes with themselves Ben.Lippmeier@anu.edu.au**20070911151211] [Try and allocate vregs spilled/reloaded from some slot to the same hreg Ben.Lippmeier@anu.edu.au**20070911145054] [Better handling of live range joins via spill slots in spill cleaner Ben.Lippmeier@anu.edu.au**20070911130247] [Make sure to coalesce all the nodes found during iterative scanning Ben.Lippmeier@anu.edu.au**20070910162909] [Add iterative coalescing to graph coloring allocator Ben.Lippmeier@anu.edu.au**20070907172315 Iterative coalescing interleaves conservative coalesing with the regular simplify/scan passes. This increases the chance that nodes will be coalesced as they will have a lower degree than at the beginning of simplify. The end result is that more register to register moves will be eliminated in the output code, though the iterative nature of the algorithm makes it slower compared to non-iterative coloring. Use -fregs-iterative for graph coloring allocation with iterative coalescing -fregs-graph for non-iterative coalescing. The plan is for iterative coalescing to be enabled with -O2 and have a quicker, non-iterative algorithm otherwise. The time/benefit tradeoff between iterative and not is still being tuned - optimal graph coloring is NP-hard, afterall.. ] [Custom printer for the Term datatype that won't output TypeRep values Pepe Iborra **20070911151454 The term pretty printer used by :print shouldn't output the contents of TypeRep values, e.g. inside Dynamic values ] [FIX #1466 (partly), which was causing concprog001(ghci) to fail Simon Marlow **20070911130228 An AP_STACK now ensures that there is at least AP_STACK_SPLIM words of stack headroom available after unpacking the payload. Continuations that require more than AP_STACK_SPLIM words of stack must do their own stack checks instead of aggregating their stack usage into the parent frame. I have made this change for the interpreter, but not for compiled code yet - we should do this in the glorious rewrite of the code generator. ] [Fix type signatures Pepe Iborra **20070911113212] [Documentation for -fbreak-on-error Pepe Iborra **20070911101944] [GHCi debugger: new flag -fbreak-on-error Pepe Iborra **20070911101443 This flag works like -fbreak-on-exception, but only stops on uncaught exceptions. ] [Remove obsolete -fdebugging flag Pepe Iborra **20070907135857 A left over from the 1st GHCi debugger prototype ] [refactoring: eliminate DriverPipeline.CompResult and GHC.upsweep_compile Simon Marlow **20070910145747] [refactoring: inline hscMkCompiler Simon Marlow **20070910145718] [FIX #1677; poor error message for misspelled module declaration Simon Marlow **20070911085452] [Synched documentation links with current directory layout sven.panne@aedion.de**20070911071801 Somehow the "html" subdirs are gone, this change was not completely intentional, but it is nice, anyway. Those subdirs never served any real purpose... MERGE TO STABLE ] [Add a BeConservative setting to the make system Ian Lynagh **20070910133528 If it is set, we don't try to use clock_gettime ] [Nicer GHCi debugger underlining Pepe Iborra **20070910145319 Improved the underlining of blocks. With this patch it does: Stopped at break020.hs:(6,20)-(7,29) _result :: t1 () = _ 5 vv 6 in_another_decl _ = do line1 0 7 line2 0 ^^ 8 Instead of Stopped at break020.hs:(6,20)-(7,29) _result :: t1 () = _ 5 6 in_another_decl _ = do line1 0 ^^ 7 line2 0 ^^ 8 ] [FIX #1669 (GHCi debugger underlining is in the wrong place) Pepe Iborra **20070910142129 We weren't taking into account the offset added by the line numbers: Stopped at break020.hs:10:2-8 _result :: IO () = _ 9 main = do 10 line1 0 ^^^^^^^ 11 line2 0 This patch adjusts that ] [Turn off orphan warnings Ian Lynagh **20070910122756 We also avoid using -fno-warn-orphans with older GHCs that don't understand the flag. ] [Add some more bits to the boring file Ian Lynagh **20070907212208] [Add a --names-only flag for list --simple-output Ian Lynagh **20070907181944 We use this in the testsuite to find out which libraries we should run the tests from. ] [FIX #903: mkWWcpr: not a product Simon Marlow **20070910103830 This fixes the long-standing bug that prevents some code with mutally-recursive modules from being compiled with --make and -O, including GHC itself. See the comments for details. There are some additional cleanups that were forced/enabled by this patch: I removed importedSrcLoc/importedSrcSpan: it wasn't adding any useful information, since a Name already contains its defining Module. In fact when re-typechecking an interface file we were wrongly replacing the interesting SrcSpans in the Names with boring importedSrcSpans, which meant that location information could degrade after reloading modules. Also, recreating all these Names was a waste of space/time. ] [Cleaned up version of Tom's unflattened skolemOccurs Manuel M T Chakravarty **20070910083457] [The RTS is Haddock-less, tell make about it sven.panne@aedion.de**20070910065759 MERGE TO STABLE ] [Include package documentation, n-th attempt... sven.panne@aedion.de**20070909154053 MERGE TO STABLE ] [Yet another attempt to get the paths for the installed documentation correct sven.panne@aedion.de**20070909124922 MERGE TO STABLE ] [Add a "show" target here, too, quite useful for debugging the build process sven.panne@aedion.de**20070909123813 MERGE TO STABLE ] [Never try to build Haddock docs in ghc/compiler, even with HADDOCK_DOCS=YES sven.panne@aedion.de**20070909123401 MERGE TO STABLE ] [Removed install-dirs target, it is unnecessary and leads to stray empty directories sven.panne@aedion.de**20070909121157 MERGE TO STABLE ] [Removed install-dirs from phony targets, it is unused sven.panne@aedion.de**20070909102815 MERGE TO STABLE ] [Add a crucial missing ; Ian Lynagh **20070908231024] [implement the outOfLine primitive in MkZipCfg (proposed as mkBlock) Norman Ramsey **20070908155141] [withUnique and mkBlock as requested by SLPJ (but only one is implemented) Norman Ramsey **20070907172030] [no registers are available after a call Norman Ramsey **20070907170843] [wrote an analysis to help in sinking Reload instructions Norman Ramsey **20070907165955] [We seem to use Outputable unconditionally these days sven.panne@aedion.de**20070908142712 MERGE TO STABLE ] [Removed setting of default values for variables which are never empty sven.panne@aedion.de**20070908131809 The standard autoconf variables like prefix, exec_prefix, ... are always set by configure, so there is no need to provide explicit defaults in the Makefile. The lines were introduced about a decade ago, perhaps there were some bugs in ancient autoconfs, but today I can't think of a reason why this should be still necessary. ] [Use := for PACKAGE_TARNAME, no reason for not doing so sven.panne@aedion.de**20070908124645 MERGE TO STABLE ] [Removed unused oldincludedir, things are already complicated enough sven.panne@aedion.de**20070908124448 MERGE TO STABLE ] [Added comment about GNU coding standards/autoconf history sven.panne@aedion.de**20070908123317 MERGE TO STABLE ] [Fixing Hpc's Finite Map compat lib for ghc 6.2.1 andy@galois.com**20070908055320] [updating hpc toolkit andy@galois.com**20070908051600 The hpc overlay has been ported from hpc-0.4 The new API for readMix is now used. ] [Fixing hpc to allow use of hash function to seperate source files on source path andy@galois.com**20070907223357] [Make various assertions work when !DEBUG Ian Lynagh **20070908003112] [Fix assertions in RtClosureInspect Ian Lynagh **20070907233330] [In ASSERT and friends, use all the expressions we are passed even if !DEBUG Ian Lynagh **20070907233324 Otherwise we may get unused variable warnings. GHC should optimise them all out for us. ] [Don't put directories for unbuildable libraries in bindists Ian Lynagh **20070907210037 We think there is a library there, and then installPackage fails to install it. ] [a good deal of salutory renaming Norman Ramsey **20070907161246 I've renamed a number of type and data constructors within Cmm so that the names used in the compiler may more closely reflect the C-- specification 2.1. I've done a bit of other renaming as well. Highlights: CmmFormal and CmmActual now bear a CmmKind (which for now is a MachHint as before) CmmFormals = [CmmFormal] and CmmActuals = [CmmActual] suitable changes have been made to both code and nonterminals in the Cmm parser (which is as yet untested) For reasons I don't understand, parts of the code generator use a sequence of 'formal parameters' with no C-- kinds. For these we now have the types type CmmFormalWithoutKind = LocalReg type CmmFormalsWithoutKinds = [CmmFormalWithoutKind] A great many appearances of (Tau, MachHint) have been simplified to the appropriate CmmFormal or CmmActual, though I'm sure there are more opportunities. Kind and its data constructors are now renamed to data GCKind = GCKindPtr | GCKindNonPtr to avoid confusion with the Kind used in the type checker and with CmmKind. Finally, in a somewhat unrelated bit (and in honor of Simon PJ, who thought of the name), the Whalley/Davidson 'transaction limit' is now called 'OptimizationFuel' with the net effect that there are no longer two unrelated uses of the abbreviation 'tx'. ] [Made TcTyFuns warning clean Manuel M T Chakravarty **20070907121113] [fix for Simple9 Tom Schrijvers **20070906171703 No longer include non-indexed arguments in lookup of matching type function clause. By including non-indexed (additional) arguments, the lookup always fails. ] [Improved error messages for higher-rank equality contexts Manuel M T Chakravarty **20070907101901] [FIX: Type families test Simple14 Manuel M T Chakravarty **20070907092217] [refactor duplicated code in main/HscMain Norman Ramsey **20070907132442 I kept making mistakes because all the ZipCfg and CPS stuff was called from two different places (compiling Haskell and compiling Cmm). Now it is called from a single place, and therefore successfully turned off by default. I still don't know why turning it on causes rts/Apply.cmm not to compile; that development is new since yesterday. ] [in CmmExpr, always have (Show GlobalReg), regardless of DEBUG setting Norman Ramsey **20070907132417] [Rejig boot Ian Lynagh **20070907122847 find on Windows doesn't understand -L, so stop trying to be clever and just autoreconf everything. Also, print out the names of directories as we autoreconf them, so that if autoreconfing one breaks then we know which one it was. ] [Fix publishing Ian Lynagh **20070907121414 Paths like c:/foo/bar get misinterpreted by rsync (really SSH?), as it thinks we want /foo/bar on the machine c. ] [Fix building with old compilers which don't understand -fno-warn-orphans Ian Lynagh **20070906195737] [Tiny optimisation/simplification to FunDeps.grow simonpj@microsoft.com**20070907101133] [Warning police simonpj@microsoft.com**20070907101103] [Add clarifying comments simonpj@microsoft.com**20070907101046] [Fix zonking in mkExports simonpj@microsoft.com**20070906090346 I'd missed zonk, so that an error message for missing type signature read (unhelpfully) main/GHC.hs:1070:0: Warning: Definition but no type signature for `upsweep'' Inferred type: upsweep' :: forall t1. t The trouble was that 't' hadn't been zonked. Push to the stable branch ] [adding new files to do with new cmm functionality Norman Ramsey **20070907075754] [Set do_bold based on $TERM, not platform Ian Lynagh **20070906175535] [Updates to work with latest cabal. Duncan Coutts **20070906131726] [massive changes to add a 'zipper' representation of C-- Norman Ramsey **20070906161948 Changes too numerous to comment on, but here is some old history that I saved: Wed Aug 15 11:07:13 BST 2007 Norman Ramsey * type synonyms made consistent with new Cmm types M ./compiler/nativeGen/MachInstrs.hs -2 +2 Mon Aug 20 19:22:14 BST 2007 Norman Ramsey * pushing return info beyond cmm into codegen M ./compiler/codeGen/Bitmap.hs r3 M ./compiler/codeGen/CgBindery.lhs r3 M ./compiler/codeGen/CgCallConv.hs r3 M ./compiler/codeGen/CgCase.lhs r3 M ./compiler/codeGen/CgClosure.lhs r3 M ./compiler/codeGen/CgCon.lhs r3 M ./compiler/codeGen/CgExpr.lhs r3 M ./compiler/codeGen/CgForeignCall.hs -6 +7 r3 M ./compiler/codeGen/CgHeapery.lhs r3 M ./compiler/codeGen/CgHpc.hs +1 r3 M ./compiler/codeGen/CgInfoTbls.hs r3 M ./compiler/codeGen/CgLetNoEscape.lhs r3 M ./compiler/codeGen/CgMonad.lhs r3 M ./compiler/codeGen/CgParallel.hs r3 M ./compiler/codeGen/CgPrimOp.hs +3 r3 M ./compiler/codeGen/CgProf.hs r3 M ./compiler/codeGen/CgStackery.lhs r3 M ./compiler/codeGen/CgTailCall.lhs r3 M ./compiler/codeGen/CgTicky.hs r3 M ./compiler/codeGen/CgUtils.hs -1 +1 r3 M ./compiler/codeGen/ClosureInfo.lhs r3 M ./compiler/codeGen/CodeGen.lhs r3 M ./compiler/codeGen/SMRep.lhs r3 M ./compiler/nativeGen/AsmCodeGen.lhs -2 +2 r1 M ./compiler/nativeGen/MachCodeGen.hs -3 +3 r1 M ./compiler/nativeGen/MachInstrs.hs r1 M ./compiler/nativeGen/MachRegs.lhs r1 M ./compiler/nativeGen/NCGMonad.hs r1 M ./compiler/nativeGen/PositionIndependentCode.hs r1 M ./compiler/nativeGen/PprMach.hs r1 M ./compiler/nativeGen/RegAllocInfo.hs r1 M ./compiler/nativeGen/RegisterAlloc.hs r1 Mon Aug 20 20:54:41 BST 2007 Norman Ramsey * put CmmReturnInfo into a CmmCall (and related types) M ./compiler/cmm/Cmm.hs -2 +1 r3 M ./compiler/cmm/CmmBrokenBlock.hs -13 +12 r1 M ./compiler/cmm/CmmCPS.hs -3 +3 M ./compiler/cmm/CmmCPSGen.hs -8 +6 r1 M ./compiler/cmm/CmmLint.hs -1 +1 M ./compiler/cmm/CmmLive.hs -1 +1 M ./compiler/cmm/CmmOpt.hs -3 +3 M ./compiler/cmm/CmmParse.y -6 +6 r3 M ./compiler/cmm/PprC.hs -3 +3 M ./compiler/cmm/PprCmm.hs -7 +4 r2 M ./compiler/codeGen/CgForeignCall.hs -7 +6 r2 M ./compiler/codeGen/CgHpc.hs -1 r1 M ./compiler/codeGen/CgPrimOp.hs -3 r1 M ./compiler/codeGen/CgUtils.hs -1 +1 r1 M ./compiler/nativeGen/AsmCodeGen.lhs -2 +2 M ./compiler/nativeGen/MachCodeGen.hs -3 +3 r1 Tue Aug 21 18:09:13 BST 2007 Norman Ramsey * add call info in nativeGen M ./compiler/nativeGen/AsmCodeGen.lhs r1 M ./compiler/nativeGen/MachInstrs.hs r1 M ./compiler/nativeGen/MachRegs.lhs r1 M ./compiler/nativeGen/NCGMonad.hs r1 M ./compiler/nativeGen/PositionIndependentCode.hs r1 M ./compiler/nativeGen/PprMach.hs r1 M ./compiler/nativeGen/RegAllocInfo.hs r1 Wed Aug 22 16:41:58 BST 2007 Norman Ramsey * ListGraph is now a newtype, not a synonym The resultant bookkeepping is unenviable, but the change greatly simplifies our ability to make Cmm things propertly Outputable for both list-graph and zipper-graph representations. M ./compiler/cmm/Cmm.hs -5 +3 M ./compiler/cmm/CmmCPS.hs -2 +2 M ./compiler/cmm/CmmCPSGen.hs -1 +1 M ./compiler/cmm/CmmContFlowOpt.hs -3 +3 M ./compiler/cmm/CmmCvt.hs -2 +2 M ./compiler/cmm/CmmInfo.hs -2 +3 M ./compiler/cmm/CmmLint.hs -1 +1 M ./compiler/cmm/CmmOpt.hs -2 +2 M ./compiler/cmm/PprC.hs -1 +1 M ./compiler/cmm/PprCmm.hs -5 +8 M ./compiler/cmm/PprCmmZ.hs -7 +1 M ./compiler/codeGen/CgMonad.lhs -1 +1 M ./compiler/nativeGen/AsmCodeGen.lhs -15 +15 M ./compiler/nativeGen/MachCodeGen.hs -2 +2 M ./compiler/nativeGen/PositionIndependentCode.hs -6 +6 M ./compiler/nativeGen/PprMach.hs -3 +2 M ./compiler/nativeGen/RegAllocColor.hs +1 M ./compiler/nativeGen/RegAllocLinear.hs -4 +5 M ./compiler/nativeGen/RegCoalesce.hs -6 +6 M ./compiler/nativeGen/RegLiveness.hs -12 +12 Thu Aug 23 13:44:49 BST 2007 Norman Ramsey * diagnostic assistance in case fromJust fails M ./compiler/nativeGen/MachCodeGen.hs -2 +5 Thu Aug 23 14:07:28 BST 2007 Norman Ramsey * give every block, even the first, a label With branch-chain elimination, the first block of a procedure might be the target of a branch. This actually happens to a dozen or more procedures in the run-time system. M ./compiler/nativeGen/PprMach.hs -8 +3 Fri Aug 24 17:27:04 BST 2007 Norman Ramsey * clean up the code in PprMach M ./compiler/nativeGen/PprMach.hs -16 +14 Fri Aug 24 19:35:03 BST 2007 Norman Ramsey * a bunch of impedance matching to get the compiler to build, plus * the plus is diagnostics for unreachable code, which required moving a lot of prettyprinting code M ./compiler/cmm/Cmm.hs -7 +5 M ./compiler/cmm/CmmCPSZ.hs -1 +1 M ./compiler/cmm/CmmCvt.hs -8 +8 M ./compiler/cmm/CmmParse.y -4 +3 M ./compiler/cmm/MkZipCfg.hs -19 +9 M ./compiler/cmm/PprCmmZ.hs -118 +4 M ./compiler/cmm/ZipCfg.hs -1 +13 M ./compiler/cmm/ZipCfgCmm.hs -10 +129 M ./compiler/main/HscMain.lhs -4 +4 M ./compiler/nativeGen/NCGMonad.hs -2 +2 M ./compiler/nativeGen/RegAllocInfo.hs -3 +3 Fri Aug 31 14:38:02 BST 2007 Norman Ramsey * fix a warning about an import M ./compiler/nativeGen/RegAllocColor.hs -1 +1 ] [Make installPackage install settings from the [package].buildinfo file. judah.jacobson@gmail.com**20070906010044 M ./libraries/installPackage.hs -1 +14 ] [Wibble some variable definitions to fix installation of bindists Ian Lynagh **20070906140430] [Remove hardtop_plat/FPTOOLS_TOP_ABS_PLATFORM Ian Lynagh **20070906122036 They are now the same as hardtop/FPTOOLS_TOP_ABS, so use those instead. Also removed some substitutions of / for \, as we now use a Haskell program to find the top path, and it only makes paths with /s in. ] [Cure space leak in coloring register allocator Ben.Lippmeier@anu.edu.au**20070906131522 We now do a deep seq on the graph after it is 'built', but before coloring. Without this, the colorer will just force bits of it and the heap will fill up with half evaluated pieces of graph from previous build/spill stages and zillions of apply thunks. ] [Small improvement to GraphColor.selectColor Ben.Lippmeier@anu.edu.au**20070906103347 When selecting a color for a node, try and avoid using colors that conflicting nodes prefer. Not sure if this'll make much difference, but it was easy enough to add.. ] [Set GhcBootLibs=YES in mk/validate-settings.mk Ian Lynagh **20070906113629] [Quote all the arguments to installPackage Ian Lynagh **20070905232959 Makes it obvious what's going on if any are empty. ] [warning police Pepe Iborra **20070906102417] [Cleanup of equality rewriting and no swapInsts for wanteds Manuel M T Chakravarty **20070906115818 - Removed code duplication - Added comments - Took out swapInsts for wanteds. With the recent extension to swapInsts it does mess up error messages if applied to wanteds and i should not be necessary. NB: The code actually shrunk. Line increase is due to comments. ] [Remove EqInsts from addSCs to avoid -DDEBUG warnings Manuel M T Chakravarty **20070906095102] [EqInst related clean up Manuel M T Chakravarty **20070906095018 - Remove some unused and some superflous functions - Add comments regarding ancestor equalities - Tidied ancestor equality computation - Replace some incorrect instToId by instToVar (but there are still some bad ones around as we still get warnings with -DDEBUG) - Some cleaned up layout NB: Code growth is just due to more comments. ] [Remove dead code in TcSimplify Manuel M T Chakravarty **20070906031719] [Fix -DDEBUG warning Manuel M T Chakravarty **20070906023914] [also swap for variables in completion algorithm Tom Schrijvers **20070905134426] [FIX #1465, error messages could sometimes say things like "A.T doesn't match A.T" Simon Marlow **20070906093744 This turned out to be a black hole, however we believe we now have a plan that does the right thing and shouldn't need to change again. Error messages will only ever refer to a name in an unambiguous way, falling back to :. if no unambiguous shorter variant can be found. See HscTypes.mkPrintUnqualified for the details. Earlier hacks to work around this problem have been removed (TcSimplify). ] [fix error in .hi-boot-6 Simon Marlow **20070905112503] [Improve GraphColor.colorScan Ben.Lippmeier@anu.edu.au**20070905164401 Testing whether a node in the conflict graph is trivially colorable (triv) is still a somewhat expensive operation. When we find a triv node during scanning, even though we remove it and its edges from the graph, this is unlikely to to make the nodes we've just scanned become triv - so there's not much point re-scanning them right away. Scanning now takes place in passes. We scan the whole graph for triv nodes and remove all the ones found in a batch before rescanning old nodes. Register allocation for SHA1.lhs now takes (just) 40% of total compile time with -O2 -fregs-graph on x86 ] [Fix OS X warnings Roman Leshchinskiy **20070906004831] [Declare ctime_r on Mac OS Roman Leshchinskiy **20070906001613 On Mac OS, ctime_r is not declared in time.h if _POSIX_C_SOURCE is defined. We work around this by providing a declaration ourselves. ] [FIX #1651: use family instances during interactive typechecking Manuel M T Chakravarty **20070905130244] [Add an OPTIONS -w pragma to utils/genprimopcode/Lexer.xx Ian Lynagh **20070905184808 SPJ reports that it has warnings (=> errors with -Werror) on Windows. ] [Build settings for validation are now in mk/validate-settings.mk Ian Lynagh **20070905184614] [Don't give warnings in compat Ian Lynagh **20070905182923 There are lots of warnings in here due to things like modules being imported that, in some versions of GHC, aren't used. Thus we don't give any warnings in here, and therefore validating with -Werror won't make the build fail. An alternative would be to do SRC_HC_OPTS := $(filter-out -Werror,$(SRC_HC_OPTS)) but if warnings are expected then there is little point in spewing them out anyway. On the other hand, there aren't any warnings for me (GHC 6.6 on Linux/amd64), so perhaps it would be worth fixing them instead. ] [Typo Ian Lynagh **20070905161402] [Fix bindist creation on Windows Ian Lynagh **20070905161354] [Fix up bindist creation and publishing Ian Lynagh **20070905160641] [Refactor, improve, and document the deriving mechanism simonpj@microsoft.com**20070905170730 This patch does a fairly major clean-up of the code that implements 'deriving. * The big changes are in TcDeriv, which is dramatically cleaned up. In particular, there is a clear split into a) inference of instance contexts for deriving clauses b) generation of the derived code, given a context Step (a) is skipped for standalone instance decls, which have an explicitly provided context. * The handling of "taggery", which is cooperative between TcDeriv and TcGenDeriv, is cleaned up a lot * I have added documentation for standalone deriving (which was previously wrong). * The Haskell report is vague on exactly when a deriving clause should succeed. Prodded by Conal I have loosened the rules slightly, thereyb making drv015 work again, and documented the rules in the user manual. I believe this patch validates ok (once I've update the test suite) and can go into the 6.8 branch. ] [Further documentation about mdo, suggested by Benjamin Franksen simonpj@microsoft.com**20070829083349] [Refactor MachRegs.trivColorable to do unboxed accumulation Ben.Lippmeier@anu.edu.au**20070905125219 trivColorable was soaking up total 31% time, 41% alloc when compiling SHA1.lhs with -O2 -fregs-graph on x86. Refactoring to use unboxed accumulators and walk directly over the UniqFM holding the set of conflicts reduces this to 17% time, 6% alloc. ] [change of representation for GenCmm, GenCmmTop, CmmProc Norman Ramsey **20070905164802 The type parameter to a C-- procedure now represents a control-flow graph, not a single instruction. The newtype ListGraph preserves the current representation while enabling other representations and a sensible way of prettyprinting. Except for a few changes in the prettyprinter the new compiler binary should be bit-for-bit identical to the old. ] [enable and slay warnings in cmm/Cmm.hs Norman Ramsey **20070905164646] [fix warnings Simon Marlow **20070905114205] [FIX #1650: ".boot modules interact badly with the ghci debugger" Simon Marlow **20070905104716 In fact hs-boot files had nothing to do with it: the problem was that GHCi would forget the breakpoint information for a module that had been reloaded but not recompiled. It's amazing that we never noticed this before. The ModBreaks were in the ModDetails, which was the wrong place. When we avoid recompiling a module, ModDetails is regenerated from ModIface by typecheckIface, and at that point it has no idea what the ModBreaks should be, so typecheckIface made it empty. The right place for the ModBreaks to go is with the Linkable, which is retained when compilation is avoided. So now I've placed the ModBreaks in with the CompiledByteCode, which also makes it clear that only byte-code modules have breakpoints. This fixes break022/break023 ] [Fix boot: it was avoiding autoreconfing Simon Marlow **20070905101419 Two problems here: find needs to dereference symbolic links (-L option, I really hope that's portable), and we need to notice when aclocal.m4 is updated. Somehow I think this was easier when it just always ran autoreconf... what was wrong with that? ] [don't generate .hi-boot/.o-boot files in GHCi Simon Marlow **20070904141231] [refactoring only Simon Marlow **20070904141209] [completion for modules in 'import M' Simon Marlow **20070904104458] [make the GhcThreaded setting lazy, because GhcUnregisterised might not be set yet Simon Marlow **20070904101729] [{Enter,Leave}CriticalSection imports should be outside #ifdef __PIC__ Simon Marlow **20070905084941] [warning police Ben.Lippmeier@anu.edu.au**20070905094509] [Do conservative coalescing in register allocator Ben.Lippmeier@anu.edu.au**20070903163404 Avoid coalescing nodes in the register conflict graph if the new node will not be trivially colorable. Also remove the front end aggressive coalescing pass. For typical Haskell code the graph coloring allocator now does about as well as the linear allocator. For code with a large amount of register pressure it does much better, but takes longer. For SHA1.lhs from darcs on x86 spills reloads reg-reg-moves inserted inserted left in code compile-time linear 1068 1311 229 7.69(s) graph 387 902 340 16.12(s) ] [Use dlsym on OS X if available Roman Leshchinskiy **20070905052213 On OS X 10.4 and newer, we have to use dlsym because the old NS* interface has been deprecated. The patch checks for HAVE_DLFCN_H instead of switching on the OS version. There is one additional quirk: although OS X prefixes global symbols with an underscore, dlsym expects its argument NOT to have a leading underscore. As a hack, we simply strip it off in lookupSymbol. Something a bit more elaborate might be cleaner. ] [bug fix in Decomp step of completion algorithm for given equations Tom Schrijvers **20070904123945] [fix of wanted equational class context Tom Schrijvers **20070904080014 Previously failed to account for equational class context for wanted dictionary contraints, e.g. wanted C a in class a ~ Int => C a instance C Int should give rise to wanted a ~ Int and consequently discharge a ~ Int by unifying a with Int and then discharge C Int with the instance. All ancestor equalities are taken into account. ] [Set datarootdir to the value configure gives us (if any) so datadir works Ian Lynagh **20070905013239 We then set datarootdir to something else later on so that things still work when configure doesn't set it. ] [FIX: Correct Leave/EnterCriticalSection imports Manuel M T Chakravarty **20070905010217] [Don't hardwire the build path into the Haddock docs sven.panne@aedion.de**20070904172855 Formerly, the ghc-pkg was called to get the HTML dirs for other packages, but of course doing this at *build* time is totally wrong. Now we use a relative path, just like before. This is probably not perfect, but much better than before. As a sidenote: Cabal calls the relevant flag "html-location", ghc-pkg calls the field "haddock-html", and Haddock itself uses it as part of "read-interface". Too much creativity is sometimes a bad thing... ] [put the @N suffix on stdcall foreign calls in .cmm code Simon Marlow **20070904142853 This applies to EnterCriticalSection and LeaveCriticalSection in the RTS ] [Add a -Warn flag Ian Lynagh **20070904141028] [Always turn on -Wall -Werror when compiling the compiler, even for stage 1 Ian Lynagh **20070904140324] [Fix CodingStyle#Warnings URLs Ian Lynagh **20070904140115] [OPTIONS_GHC overrides the command-line, not the other way around Simon Marlow **20070904100623] [fix cut-and-pasto Simon Marlow **20070904100526] [FIX #1651: unBox types when deferring unification Manuel M T Chakravarty **20070904072542 - This fixes the first part of #1651; ie, the panic in ghci. ] [Better error message for unsolvable equalities Manuel M T Chakravarty **20070903074528] [Use := rather than = when assigning make variables to avoid cycles Ian Lynagh **20070903235117] [Don't use autoconf's datarootdir as <2.60 doesn't have it Ian Lynagh **20070903234504] [Use OPTIONS rather than OPTIONS_GHC for pragmas Ian Lynagh **20070903233903 Older GHCs can't parse OPTIONS_GHC. This also changes the URL referenced for the -w options from WorkingConventions#Warnings to CodingStyle#Warnings for the compiler modules. ] [Fix building RTS with gcc 2.*; declare all variables at the top of a block Ian Lynagh **20070903165847 Patch from Audrey Tang. ] [fix build (sorry, forgot to push with previous patch) Simon Marlow **20070903200615] [remove debugging code Simon Marlow **20070903200003] [NCG space leak avoidance refactor Ben.Lippmeier@anu.edu.au**20070903132254] [Do aggressive register coalescing Ben.Lippmeier@anu.edu.au**20070903115149 Conservative and iterative coalescing come next. ] [Add coalescence edges back to the register graph Ben.Lippmeier@anu.edu.au**20070828144424] [FIX #1623: disable the timer signal when the system is idle (threaded RTS only) Simon Marlow **20070903132523 Having a timer signal go off regularly is bad for power consumption, and generally bad practice anyway (it means the app cannot be completely swapped out, for example). Fortunately the threaded RTS already had a way to detect when the system was idle, so that it can trigger a GC and thereby find deadlocks. After performing the GC, we now turn off timer signals, and re-enable them again just before running any Haskell code. ] [FIX #1648: rts_mkWord64 was missing Simon Marlow **20070903131625 Also noticed a few others from RtsAPI were missing, so I added them all ] [FIX for #1080 Ross Paterson **20070903141044 Arrow desugaring now uses a private version of collectPatBinders and friends, in order to include dictionary bindings from ConPatOut. It doesn't fix arrowrun004 (#1333), though. ] [Fix space leak in NCG Ben.Lippmeier@anu.edu.au**20070831090431] [GhcThreaded was bogusly off by default due to things being in the wrong order Simon Marlow **20070903103829] [bump MAX_THUNK_SELECTOR_DEPTH from 8 to 16 Simon Marlow **20070903101912 this "fixes" #1038, in that the example runs in constant space, but it's really only working around the problem. I have a better patch, attached to ticket #1038, but I'm wary about tinkering with this notorious bug farm so close to the release, so I'll push it after 6.8.1. ] [comments only Simon Marlow **20070831092224 I had planned to do findEnclosingDecl a different way, so add a ToDo as a reminder. ] [Suppress some warnings on Windows Ian Lynagh **20070902222048] [Fix warnings in ghc-pkg on Windows Ian Lynagh **20070902221442] [Fix and supress some warnings, and turn on -Werror when validating Ian Lynagh **20070902193918] [Explicitly set "docdir" when calling make, configure's --docdir seems to be ignored sven.panne@aedion.de**20070902164342] [Use DESTDIR for installation sven.panne@aedion.de**20070901175124] [Fixed TeX syntax sven.panne@aedion.de**20070901124615] [Set -Wall -fno-warn-name-shadowing in compiler/ when stage /= 2 Ian Lynagh **20070901113018] [Add {-# OPTIONS_GHC -w #-} and some blurb to all compiler modules Ian Lynagh **20070901112130] [Add a --print-docdir flag Ian Lynagh **20070831231538] [Follow Cabal module movements in installPackage Ian Lynagh **20070831181359] [Follow Cabal's move Distribution.Program -> Distribution.Simple.Program Ian Lynagh **20070831175217] [Don't use the --docdir etc that autoconf provides Ian Lynagh **20070831173903 Older autoconfs (<2.60?) don't understand them. ] [Don't try to copy haddock index files if we haven't built the docs. judah.jacobson@gmail.com**20070831050321 M ./libraries/Makefile +2 ] [Use cp -R instead of cp -a (it's more portable). judah.jacobson@gmail.com**20070831050215 M ./libraries/Makefile -3 +3 ] [Fix installing the libraries when there is no DESTDIR Ian Lynagh **20070831015442] [Make the doc index page obey DESTDIR Ian Lynagh **20070831014537] [Make rts docs obey DESTDIR Ian Lynagh **20070831014346] [Make the manpage obey DESTDIR Ian Lynagh **20070831014253] [Obey DESTDIR when installing library docs Ian Lynagh **20070831012351] [typo in DLL code Simon Marlow **20070830143105] [Windows: give a better error message when running out of memory Simon Marlow **20070830135146 I think this fixes #1209 Previously: outofmem.exe: getMBlocks: VirtualAlloc MEM_RESERVE 1025 blocks failed: Not enoug h storage is available to process this command. Now: outofmem.exe: out of memory ] [Remove NDP-related stuff from PrelNames Roman Leshchinskiy **20070831045411 We don't need fixed Names for NDP built-ins. Instead, we can look them up ourselves during VM initialisation. ] [Vectorisation of enumeration types Roman Leshchinskiy **20070831041822] [Number data constructors from 0 when vectorising Roman Leshchinskiy **20070831032528] [Rename functions Roman Leshchinskiy **20070831032125] [Refactoring Roman Leshchinskiy **20070831015312] [Refactoring Roman Leshchinskiy **20070831012638] [Fix vectorisation of nullary data constructors Roman Leshchinskiy **20070831005912] [Do not unnecessarily wrap array components Roman Leshchinskiy **20070830062958] [Remove dead code Roman Leshchinskiy **20070830055444] [Fix vectorisation of unary data constructors Roman Leshchinskiy **20070830040252] [Fix vectorisation of sum type constructors Roman Leshchinskiy **20070830035225] [Track changes to package ndp (use PArray_Int# instead of UArr Int) Roman Leshchinskiy **20070830032104] [Find the correct array type for primitive tycons Roman Leshchinskiy **20070830025224] [Add code for looking up PA methods of primitive TyCons Roman Leshchinskiy **20070830014257] [Delete dead code Roman Leshchinskiy **20070829145630] [Rewrite vectorisation of product DataCon workers Roman Leshchinskiy **20070829145446] [Rewrite generation of PA dictionaries Roman Leshchinskiy **20070829064258] [Complete PA dictionary generation for product types Roman Leshchinskiy **20070824230152] [Simplify generation of PR dictionaries for products Roman Leshchinskiy **20070824071925] [Remove unused vectorisation built-in Roman Leshchinskiy **20070824051524] [Adapt PArray instance generation to new scheme Roman Leshchinskiy **20070824051242] [Add UArr built-in Roman Leshchinskiy **20070824051213] [Modify generation of PR dictionaries for new scheme Roman Leshchinskiy **20070824043144] [Refactoring Roman Leshchinskiy **20070824040901] [Remove dead code Roman Leshchinskiy **20070824035751] [Fix buildFromPRepr Roman Leshchinskiy **20070824035700] [Move code Roman Leshchinskiy **20070824032930] [Move code Roman Leshchinskiy **20070824032743] [Delete dead code Roman Leshchinskiy **20070824031504] [Change buildToPRepr to work with the new representation scheme Roman Leshchinskiy **20070824031407] [Remove Embed and related stuff from vectorisation Roman Leshchinskiy **20070824023030] [Encode generic representation of vectorised TyCons by a data type Roman Leshchinskiy **20070824012140] [Remove dead code Roman Leshchinskiy **20070823135810] [Conversions to/from generic array representation (not finished yet) Roman Leshchinskiy **20070823135649] [Use n-ary sums and products for NDP's generic representation Roman Leshchinskiy **20070823060945 Originally, we wanted to only use binary ones, at least initially. But this would a lot of fiddling with selectors when converting to/from generic array representations. This is both inefficient and hard to implement. Instead, we will limit the arity of our sums/product representation to, say, 16 (it's 3 at the moment) and initially refuse to vectorise programs for which this is not sufficient. This allows us to implement everything in the library. Later, we can implement the necessary splitting. ] [Fix where all the documentation gets installed Ian Lynagh **20070830223740 The paths can also now be overridden with the standard configure flags --docdir=, --htmldir= etc. We were always advertising these, but now we actually obey them. ] [Added decidability check for type instances Manuel M T Chakravarty **20070830144901] [Warning police Pepe Iborra **20070829183155] [Use a Data.Sequence instead of a list in cvReconstructType Pepe Iborra **20070829175119 While I was there I removed some trailing white space ] [Fix a bug in RtClosureInspect.cvReconstructType. Pepe Iborra **20070829174842 Test is print025 ] [Warning police Pepe Iborra **20070829165653] [UNDO: Extend ModBreaks with the srcspan's of the enclosing expressions Pepe Iborra **20070829102314 Remnants of :stepover ] [remove "special Ids" section, replace with a link to GHC.Prim Simon Marlow **20070830112139 This documentation was just duplicating what is in GHC.Prim now. ] [expand docs for unsafeCoerce#, as a result of investigations for #1616 Simon Marlow **20070830111909] [Remove text about ghcprof. It almost certainly doesn't work. Simon Marlow **20070829122126] [fix compiling GHC 6.7+ with itself - compat needs -package containers now Simon Marlow **20070829113500] [fix typo Simon Marlow **20070824141039] [no -auto-all for CorePrep Simon Marlow **20070829092414] [improvements to findPtr(), a useful hack for space-leak debugging in gdb Simon Marlow **20070829092400] [fix up some old text, remove things that aren't true any more Simon Marlow **20070828125821] [Windows: remove the {Enter,Leave}CricialSection wrappers Simon Marlow **20070829104811 The C-- parser was missing the "stdcall" calling convention for foreign calls, but once added we can call {Enter,Leave}CricialSection directly. ] [Wibble Pepe Iborra **20070829085305] [FIX: Remove accidential change to darcs-all in type families patch Manuel M T Chakravarty **20070829010011 - The type families patch includes a change to darcs-all that breaks it for ssh repos at least for Perl 5.8.8 (on MacOS). - My Perl-fu is not sufficient to try to fix the modification, which was supposed to improve darcs-all on windows, so I just revert to the old code. ] [Remove INSTALL_INCLUDES; no longer used Ian Lynagh **20070828205636] [Use DESTDIR when installing Ian Lynagh **20070828205119] [Copy LICENSE files into the bindist, as Cabal now installs them Ian Lynagh **20070828130428] [TAG 2007-08-28 Ian Lynagh **20070828215445] Patch bundle hash: 6ac237ac820859a91a197fed556d4346a51f72d2