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[Git][ghc/ghc][wip/andreask/ticked_joins] Allow join point Ids to occur below ticks & casts
by sheaf (＠sheaf) 04 Feb '26

04 Feb '26

sheaf pushed to branch wip/andreask/ticked_joins at Glasgow Haskell Compiler / GHC Commits: 681d279b by sheaf at 2026-02-04T12:28:43+01:00 Allow join point Ids to occur below ticks & casts This commit classifies all join points into two categories: - true join points - quasi join points A quasi join point is a join point for which a jump is enclosed within a profiling tick or a cast. The only operational difference is that, for quasi join points, we cannot perform the case-of-case transformation described in Note [Join points and case-of-case] in GHC.Core.Opt.Simplify.Iteration. All of this is explained in detail in Note [Quasi join points]. Fixes #26693 and #26642 Improves on #14610, #26157 and #26422, as it means casts/profiling ticks don't prevent join points, but it doesn't entirely fix these issues because we are still inhibiting optimisations (lack of case-of-case). - - - - - 34 changed files: - compiler/GHC/Core/Lint.hs - compiler/GHC/Core/Opt/Arity.hs - compiler/GHC/Core/Opt/CSE.hs - compiler/GHC/Core/Opt/Exitify.hs - compiler/GHC/Core/Opt/FloatIn.hs - compiler/GHC/Core/Opt/FloatOut.hs - compiler/GHC/Core/Opt/OccurAnal.hs - compiler/GHC/Core/Opt/SetLevels.hs - compiler/GHC/Core/Opt/Simplify/Env.hs - compiler/GHC/Core/Opt/Simplify/Iteration.hs - compiler/GHC/Core/Opt/Simplify/Monad.hs - compiler/GHC/Core/Opt/SpecConstr.hs - compiler/GHC/Core/Opt/Specialise.hs - compiler/GHC/Core/Opt/WorkWrap.hs - compiler/GHC/Core/Opt/WorkWrap/Utils.hs - compiler/GHC/Core/Ppr.hs - compiler/GHC/Core/Rules.hs - compiler/GHC/Core/SimpleOpt.hs - compiler/GHC/Core/Tidy.hs - compiler/GHC/Core/Unfold.hs - compiler/GHC/Core/Utils.hs - compiler/GHC/CoreToStg/Prep.hs - compiler/GHC/Iface/Tidy.hs - compiler/GHC/Types/Basic.hs - compiler/GHC/Types/Id.hs - compiler/GHC/Types/Id/Info.hs - compiler/GHC/Types/Tickish.hs - compiler/GHC/Utils/Binary.hs - compiler/GHC/Utils/Outputable.hs - testsuite/tests/profiling/should_run/T2552.prof.sample - testsuite/tests/profiling/should_run/ioprof.prof.sample - testsuite/tests/profiling/should_run/scc001.prof.sample - + testsuite/tests/simplCore/should_compile/QuasiJoinPoints.hs - testsuite/tests/simplCore/should_compile/all.T The diff was not included because it is too large. View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/681d279b678cfad3a1cbf72ee28584e… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/681d279b678cfad3a1cbf72ee28584e… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][wip/andreask/linker_fix] check for mac sections
by Andreas Klebinger (＠AndreasK) 04 Feb '26

04 Feb '26

Andreas Klebinger pushed to branch wip/andreask/linker_fix at Glasgow Haskell Compiler / GHC Commits: 61f0b4c5 by Andreas Klebinger at 2026-02-04T12:06:09+01:00 check for mac sections - - - - - 1 changed file: - rts/linker/LoadArchive.c Changes: ===================================== rts/linker/LoadArchive.c ===================================== @@ -510,6 +510,17 @@ HsInt loadArchive_ (pathchar *path) DEBUG_LOG("Found member file `%s'\n", fileName); bool is_symbol_table = strcmp("", fileName) == 0; +#if defined(OBJFORMAT_MACHO) + if (!is_symbol_table) { + /* Darwin ranlib symbol tables are named __.SYMDEF* */ + if (strncmp(fileName, "__.SYMDEF", sizeof("__.SYMDEF")) == 0 || + strncmp(fileName, "__.SYMDEF SORTED", sizeof("__.SYMDEF SORTED")) == 0 || + strncmp(fileName, "__.SYMDEF_64", sizeof("__.SYMDEF_64")) == 0 || + strncmp(fileName, "__.SYMDEF_64 SORTED", sizeof("__.SYMDEF_64 SORTED")) == 0) { + is_symbol_table = true; + } + } +#endif ///////////////////////////////////////////////// // We found the member file. Load it into memory. @@ -596,6 +607,7 @@ HsInt loadArchive_ (pathchar *path) #endif if (isThin) { if (!readThinArchiveMember(memberSize, path, fileName, image)) { + errorBelch("Failed to read thin member %" PATH_FMT"\n", path); goto fail; } } @@ -630,6 +642,7 @@ HsInt loadArchive_ (pathchar *path) IF_DEBUG(linker, ocDebugBelch(oc, "Faild to verify ... skipping.")); errorBelch("Faild to verify ... skipping."); freeObjectCode( oc ); + //TODO: Unmap or free image continue; } @@ -752,4 +765,3 @@ bool isArchive (pathchar *path) } return strncmp(ARCHIVE_HEADER, buffer, sizeof(ARCHIVE_HEADER)-1) == 0; } - View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/61f0b4c59de631590642b444b9e01d0… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/61f0b4c59de631590642b444b9e01d0… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][wip/andreask/ticked_joins] Allow join point Ids to occur below ticks & casts
by sheaf (＠sheaf) 04 Feb '26

04 Feb '26

sheaf pushed to branch wip/andreask/ticked_joins at Glasgow Haskell Compiler / GHC Commits: 04e5f8e4 by sheaf at 2026-02-04T11:40:48+01:00 Allow join point Ids to occur below ticks & casts This commit classifies all join points into two categories: - true join points - quasi join points A quasi join point is a join point for which a jump is enclosed within a profiling tick or a cast. The only operational difference is that, for quasi join points, we cannot perform the case-of-case transformation described in Note [Join points and case-of-case] in GHC.Core.Opt.Simplify.Iteration. All of this is explained in detail in Note [Quasi join points]. Fixes #26693 and #26642 Improves on #14610, #26157 and #26422, as it means casts/profiling ticks don't prevent join points, but it doesn't entirely fix these issues because we are still inhibiting optimisations (lack of case-of-case). - - - - - 34 changed files: - compiler/GHC/Core/Lint.hs - compiler/GHC/Core/Opt/Arity.hs - compiler/GHC/Core/Opt/CSE.hs - compiler/GHC/Core/Opt/Exitify.hs - compiler/GHC/Core/Opt/FloatIn.hs - compiler/GHC/Core/Opt/FloatOut.hs - compiler/GHC/Core/Opt/OccurAnal.hs - compiler/GHC/Core/Opt/SetLevels.hs - compiler/GHC/Core/Opt/Simplify/Env.hs - compiler/GHC/Core/Opt/Simplify/Iteration.hs - compiler/GHC/Core/Opt/Simplify/Monad.hs - compiler/GHC/Core/Opt/SpecConstr.hs - compiler/GHC/Core/Opt/Specialise.hs - compiler/GHC/Core/Opt/WorkWrap.hs - compiler/GHC/Core/Opt/WorkWrap/Utils.hs - compiler/GHC/Core/Ppr.hs - compiler/GHC/Core/Rules.hs - compiler/GHC/Core/SimpleOpt.hs - compiler/GHC/Core/Tidy.hs - compiler/GHC/Core/Unfold.hs - compiler/GHC/Core/Utils.hs - compiler/GHC/CoreToStg/Prep.hs - compiler/GHC/Iface/Tidy.hs - compiler/GHC/Types/Basic.hs - compiler/GHC/Types/Id.hs - compiler/GHC/Types/Id/Info.hs - compiler/GHC/Types/Tickish.hs - compiler/GHC/Utils/Binary.hs - compiler/GHC/Utils/Outputable.hs - testsuite/tests/profiling/should_run/T2552.prof.sample - testsuite/tests/profiling/should_run/ioprof.prof.sample - testsuite/tests/profiling/should_run/scc001.prof.sample - + testsuite/tests/simplCore/should_compile/QuasiJoinPoints.hs - testsuite/tests/simplCore/should_compile/all.T The diff was not included because it is too large. View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/04e5f8e440323bc7d05958b1efb1cf8… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/04e5f8e440323bc7d05958b1efb1cf8… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][wip/andreask/ticked_joins] 17 commits: Remove `GHC.Desugar` from `base`
by sheaf (＠sheaf) 04 Feb '26

04 Feb '26

sheaf pushed to branch wip/andreask/ticked_joins at Glasgow Haskell Compiler / GHC Commits: 607b287b by Wolfgang Jeltsch at 2026-01-28T15:41:53+02:00 Remove `GHC.Desugar` from `base` `GHC.Desugar` was deprecated and should have been removed in GHC 9.14. However, the removal was forgotten, although there was a code block that was intended to trigger a compilation error when the GHC version in use was 9.14 or later. This code sadly didn’t work, because the `__GLASGOW_HASKELL__` macro was misspelled as `__GLASGOW_HASKELL`. - - - - - e8f5a45d by sterni at 2026-01-29T04:19:18-05:00 users_guide: fix runtime error during build with Sphinx 9.1.0 Appears that pathto is stricter about what it accepts now. Tested Sphinx 8.2.3 and 9.1.0 on the ghc-9.10 branch. Resolves #26810. Co-authored-by: Martin Weinelt <hexa(a)darmstadt.ccc.de> - - - - - ce2d62fb by Jessica Clarke at 2026-01-29T19:48:51-05:00 PPC NCG: Use libcall for 64-bit cmpxchg on 32-bit PowerPC There is no native instruction for this, and even if there were a register pair version we could use, the implementation here is assuming the values fit in a single register, and we end up only using / defining the low halves of the registers. Fixes: b4d39adbb5 ("PrimOps: Add CAS op for all int sizes") Fixes: #23969 - - - - - 43d97761 by Michael Karcher at 2026-01-29T19:49:43-05:00 NCG for PPC: add pattern for CmmRegOff to iselExpr64 Closes #26828 - - - - - aeeb4a20 by Matthew Pickering at 2026-01-30T11:42:47-05:00 determinism: Use deterministic map for Strings in TyLitMap When generating typeable evidence the types we need evidence for all cached in a TypeMap, the order terms are retrieved from a type map determines the order the bindings appear in the program. A TypeMap is quite diligent to use deterministic maps, apart from in the TyLitMap, which uses a UniqFM for storing strings, whose ordering depends on the Unique of the FastString. This can cause non-deterministic .hi and .o files. An unexpected side-effect is the error message but RecordDotSyntaxFail8 changing. I looked into this with Sam and this change caused the constraints to be solved in a different order which results in a slightly different error message. I have accepted the new test, since the output before was non-deterministic and the new output is consistent with the other messages in that file. Fixes #26846 - - - - - 9e4d70c2 by Andrew Lelechenko at 2026-01-30T11:43:29-05:00 Upgrade text submodule to 2.1.4 - - - - - 631fa5ae by Recursion Ninja at 2026-01-31T22:30:11+00:00 Decouple `L.S.H.Decls` from importing `GHC.Types.Basic` Data-types within `GHC.Types.Basic` which describe components of the AST are migrated to `Language.Haskell.Syntax.Basic`. Related function definitions are also moved. Types moved to L.H.S. because they are part of the AST: * TopLevelFlag * RuleName Types moved from L.H.S. to GHC.Hs. because they are not needed in the AST: * TyConFlavour * TypeOrData * NewOrData Migrated instances: * `Outputable` instances moved to in `GHC.Utils.Outputable` * `Binary` instance of `Boxity` moved to to `GHC.Utils.Binary` * Other `Binary` instances are orphans to be migrated later. The `OverlapMode` data-type is given a TTG extension point. The `OverlapFlag` data-type, which depends on `OverlapMode`, is updated to support `OverlapMode` with a GHC "pass" type paramerter. In order to avoid module import cycles, `OverlapMode` and `OverlapFlag` are migrated to new modules (no way around this). * Migrated `OverlapMode` to new module `Language.Haskell.Syntax.Overlap` * Migrated `OverlapFlag` to new module `GHC.Hs.Decls.Overlap` - - - - - 9769cc03 by Simon Hengel at 2026-02-01T04:21:03-05:00 Update the documentation for MultiWayIf (fixes #25376) (so that it matches the implementation) - - - - - 5fc9442a by Peter Trommler at 2026-02-01T04:21:44-05:00 hadrian: Fix dependency generation for assembler Assembler files allow # for comments unless in column 1. A modern cpp for C treats those a preprocessor directives. We tell gcc that a .S file is assembler with cpp and not C. Fixes #26819 - - - - - 269c4087 by Simon Peyton Jones at 2026-02-01T19:38:10-05:00 Include current phase in the range for rule/unfoldings This MR fixes a bad loop in the compiler: #26826. The fix is to add (WAR2) to Note [What is active in the RHS of a RULE or unfolding?] in GHC.Core.Opt.Simplify.Utils - - - - - ddf1434f by Vladislav Zavialov at 2026-02-01T19:38:52-05:00 Refactor: merge HsMultilineString into HsString (#26860) Before this patch, HsLit defined two separate constructors to represent single-line and multi-line strings: data HsLit x ... | HsString (XHsString x) FastString | HsMultilineString (XHsMultilineString x) FastString I found this to be an unnecessary complication and an obstacle to unifying HsLit with HsTyLit. Now we use HsString for both kinds of literals. One user-facing change here is `ppr (HsString st s)` behaving differently for single-line strings containing newlines: x = "first line \ \asdf\n\ \second line" Previously, the literal was fed to `ftext` with its newlines, producing an ill-formed SDoc. This issue is now addressed by using `split` for both single-line and multi-line strings: vcat $ map text $ split '\n' (unpackFS src) See the parser/should_fail/T26860ppr test. In addition (and unrelatedly to the main payload of this patch), drop the unused pmPprHsLit helper. - - - - - 2b4f463c by Simon Peyton Jones at 2026-02-02T17:32:32+00:00 Remove exprIsCheap from doFloatFromRhs See #26854 and Note [Float when expandable] This patch simplifies the code, by removing an extra unnecessary test. - - - - - 9db7f21f by Brandon Chinn at 2026-02-03T09:15:10-05:00 Refactor: make function patterns exhaustive Also added missing (==) logic for: * HsMultilineString * HsInt{8,16,32} * HsWord{8,16,32} - - - - - aa9c5e2c by Hécate Kleidukos at 2026-02-03T15:58:35-05:00 driver: Hide source paths at verbosity level 1 by default - - - - - c64cca1e by mangoiv at 2026-02-03T15:59:29-05:00 ExplicitLevelImports: check staging for types just like for values Previously, imported types were entirely exempted from staging checks as the implicit stage persistance assumed to be all imported types to be well staged. ExplicitLevelImports' change specification, however, does not do such an exemption. Thus we want to introduce such a check, just like we have for values. ExplicitLevelImports does not, however, talk about local names - from its perspective, we could theoretically keep treating locally introduced types specially - e.g. an ill-staged used in a quote would only emit a warning, not an error. To allow for a potential future migration away from such wrinkles as the staging check in notFound (see Note [Out of scope might be a staging error]) we consistently do the strict staging check that we also do for value if ExplicitLevelImports is on. Closes #26098 - - - - - 5f0dbeb6 by Simon Hengel at 2026-02-03T16:00:12-05:00 Use Haddock formatting in deprecation message of `initNameCache` - - - - - fbcd68e4 by sheaf at 2026-02-04T11:32:16+01:00 Allow join point Ids to occur below ticks & casts This commit classifies all join points into two categories: - true join points - quasi join points A quasi join point is a join point for which a jump is enclosed within a profiling tick or a cast. The only operational difference is that, for quasi join points, we cannot perform the case-of-case transformation described in Note [Join points and case-of-case] in GHC.Core.Opt.Simplify.Iteration. All of this is explained in detail in Note [Quasi join points]. Fixes #26693 and #26642 Improves on #14610, #26157 and #26422, as it means casts/profiling ticks don't prevent join points, but it doesn't entirely fix these issues because we are still inhibiting optimisations (lack of case-of-case). - - - - - 146 changed files: - compiler/GHC/CmmToAsm/PPC/CodeGen.hs - compiler/GHC/Core/InstEnv.hs - compiler/GHC/Core/Lint.hs - compiler/GHC/Core/Map/Type.hs - compiler/GHC/Core/Opt/Arity.hs - compiler/GHC/Core/Opt/CSE.hs - compiler/GHC/Core/Opt/Exitify.hs - compiler/GHC/Core/Opt/FloatIn.hs - compiler/GHC/Core/Opt/FloatOut.hs - compiler/GHC/Core/Opt/OccurAnal.hs - compiler/GHC/Core/Opt/SetLevels.hs - compiler/GHC/Core/Opt/Simplify/Env.hs - compiler/GHC/Core/Opt/Simplify/Iteration.hs - compiler/GHC/Core/Opt/Simplify/Monad.hs - compiler/GHC/Core/Opt/Simplify/Utils.hs - compiler/GHC/Core/Opt/SpecConstr.hs - compiler/GHC/Core/Opt/Specialise.hs - compiler/GHC/Core/Opt/WorkWrap.hs - compiler/GHC/Core/Opt/WorkWrap/Utils.hs - compiler/GHC/Core/Ppr.hs - compiler/GHC/Core/Rules.hs - compiler/GHC/Core/SimpleOpt.hs - compiler/GHC/Core/Tidy.hs - compiler/GHC/Core/Unfold.hs - compiler/GHC/Core/Utils.hs - compiler/GHC/CoreToStg/Prep.hs - compiler/GHC/Driver/Session.hs - compiler/GHC/Hs/Decls.hs - + compiler/GHC/Hs/Decls/Overlap.hs - compiler/GHC/Hs/Instances.hs - compiler/GHC/Hs/Lit.hs - compiler/GHC/Hs/Syn/Type.hs - compiler/GHC/Hs/Utils.hs - compiler/GHC/HsToCore/Errors/Types.hs - compiler/GHC/HsToCore/Match/Literal.hs - compiler/GHC/HsToCore/Quote.hs - compiler/GHC/Iface/Ext/Ast.hs - compiler/GHC/Iface/Syntax.hs - compiler/GHC/Iface/Tidy.hs - compiler/GHC/Parser.y - compiler/GHC/Parser/String.hs - compiler/GHC/Rename/Env.hs - compiler/GHC/Rename/Expr.hs - compiler/GHC/Rename/HsType.hs - compiler/GHC/Rename/Module.hs - compiler/GHC/Rename/Names.hs - compiler/GHC/Rename/Splice.hs - compiler/GHC/Rename/Splice.hs-boot - compiler/GHC/Tc/Deriv.hs - compiler/GHC/Tc/Deriv/Utils.hs - compiler/GHC/Tc/Errors/Ppr.hs - compiler/GHC/Tc/Gen/Head.hs - compiler/GHC/Tc/Gen/HsType.hs - compiler/GHC/Tc/Utils/Env.hs - compiler/GHC/Tc/Utils/Instantiate.hs - compiler/GHC/Tc/Utils/Monad.hs - compiler/GHC/ThToHs.hs - compiler/GHC/Types/Basic.hs - compiler/GHC/Types/Id.hs - compiler/GHC/Types/Id/Info.hs - compiler/GHC/Types/InlinePragma.hs - compiler/GHC/Types/Name.hs - compiler/GHC/Types/Name/Cache.hs - compiler/GHC/Types/Tickish.hs - compiler/GHC/Unit/Types.hs - compiler/GHC/Utils/Binary.hs - compiler/GHC/Utils/Outputable.hs - compiler/Language/Haskell/Syntax/Basic.hs - compiler/Language/Haskell/Syntax/Decls.hs - + compiler/Language/Haskell/Syntax/Decls/Overlap.hs - compiler/Language/Haskell/Syntax/Extension.hs - compiler/Language/Haskell/Syntax/Lit.hs - compiler/ghc.cabal.in - docs/users_guide/9.16.1-notes.rst - docs/users_guide/exts/multiway_if.rst - docs/users_guide/rtd-theme/layout.html - hadrian/src/Builder.hs - hadrian/src/Rules/Compile.hs - hadrian/src/Settings/Builders/Cc.hs - hadrian/src/Settings/Builders/RunTest.hs - hadrian/src/Settings/Packages.hs - libraries/base/base.cabal.in - − libraries/base/src/GHC/Desugar.hs - libraries/text - testsuite/mk/test.mk - testsuite/tests/backpack/cabal/bkpcabal08/bkpcabal08.stdout - testsuite/tests/count-deps/CountDepsAst.stdout - testsuite/tests/count-deps/CountDepsParser.stdout - testsuite/tests/driver/T20030/test1/all.T - testsuite/tests/driver/T20030/test2/all.T - testsuite/tests/driver/T20030/test3/all.T - testsuite/tests/driver/T20030/test4/all.T - testsuite/tests/driver/T20030/test5/all.T - testsuite/tests/driver/T20030/test6/all.T - testsuite/tests/driver/T8526/T8526.script - testsuite/tests/driver/bytecode-object/Makefile - testsuite/tests/driver/bytecode-object/bytecode_object19.stdout - testsuite/tests/driver/dynamicToo/dynamicToo001/Makefile - testsuite/tests/driver/fat-iface/fat014.script - testsuite/tests/driver/implicit-dyn-too/Makefile - testsuite/tests/driver/multipleHomeUnits/all.T - testsuite/tests/driver/multipleHomeUnits/multipleHomeUnits_recomp_th.stdout - + testsuite/tests/ghc-api/TypeMapStringLiteral.hs - testsuite/tests/ghc-api/all.T - − testsuite/tests/ghci/linking/T11531.stderr - testsuite/tests/ghci/prog018/prog018.script - testsuite/tests/ghci/scripts/T13869.script - testsuite/tests/ghci/scripts/T13997.script - testsuite/tests/ghci/scripts/T17669.script - testsuite/tests/ghci/scripts/T18330.script - testsuite/tests/ghci/scripts/T18330.stdout - testsuite/tests/ghci/scripts/T1914.script - testsuite/tests/ghci/scripts/T20217.script - testsuite/tests/ghci/scripts/T6105.script - testsuite/tests/ghci/scripts/T8042.script - testsuite/tests/ghci/scripts/T8042recomp.script - testsuite/tests/ghci/should_run/Makefile - testsuite/tests/interface-stability/base-exports.stdout - testsuite/tests/interface-stability/base-exports.stdout-javascript-unknown-ghcjs - testsuite/tests/interface-stability/base-exports.stdout-mingw32 - testsuite/tests/interface-stability/base-exports.stdout-ws-32 - testsuite/tests/parser/should_fail/RecordDotSyntaxFail8.stderr - + testsuite/tests/parser/should_fail/T26860ppr.hs - + testsuite/tests/parser/should_fail/T26860ppr.stderr - testsuite/tests/parser/should_fail/all.T - testsuite/tests/profiling/should_run/T2552.prof.sample - testsuite/tests/profiling/should_run/ioprof.prof.sample - testsuite/tests/profiling/should_run/scc001.prof.sample - testsuite/tests/rts/T13676.script - + testsuite/tests/simplCore/should_compile/QuasiJoinPoints.hs - + testsuite/tests/simplCore/should_compile/T26826.hs - testsuite/tests/simplCore/should_compile/all.T - + testsuite/tests/th/T26098A_quote.hs - + testsuite/tests/th/T26098A_splice.hs - + testsuite/tests/th/T26098_local.hs - + testsuite/tests/th/T26098_local.stderr - + testsuite/tests/th/T26098_quote.hs - + testsuite/tests/th/T26098_quote.stderr - + testsuite/tests/th/T26098_splice.hs - + testsuite/tests/th/T26098_splice.stderr - testsuite/tests/th/all.T - utils/check-exact/ExactPrint.hs - utils/haddock/haddock-api/src/Haddock/Backends/Hoogle.hs - utils/haddock/haddock-api/src/Haddock/Convert.hs - utils/haddock/haddock-api/src/Haddock/Interface/Rename.hs - utils/haddock/haddock-api/src/Haddock/Types.hs The diff was not included because it is too large. View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/f6027208357b11e92d2c30918da3ed… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/f6027208357b11e92d2c30918da3ed… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc] Pushed new branch wip/with-hs-doc-identifiers-determ
by Matthew Pickering (＠mpickering) 04 Feb '26

04 Feb '26

Matthew Pickering pushed new branch wip/with-hs-doc-identifiers-determ at Glasgow Haskell Compiler / GHC -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/tree/wip/with-hs-doc-identifiers-determ You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][wip/submodule-bumps-2026-01] 30 commits: ci: update darwin boot ghc to 9.10.3
by Cheng Shao (＠TerrorJack) 04 Feb '26

04 Feb '26

Cheng Shao pushed to branch wip/submodule-bumps-2026-01 at Glasgow Haskell Compiler / GHC Commits: 50761451 by Cheng Shao at 2026-01-27T21:51:23-05:00 ci: update darwin boot ghc to 9.10.3 This patch updates darwin boot ghc to 9.10.3, along with other related updates, and pays off some technical debt here: - Update `nixpkgs` and use the `nixpkgs-25.05-darwin` channel. - Update the `niv` template. - Update LLVM to 21 and update `llvm-targets` to reflect LLVM 21 layout changes for arm64/x86_64 darwin targets. - Use `stdenvNoCC` to prevent nix packaged apple sdk from being used by boot ghc, and manually set `DEVELOPER_DIR`/`SDKROOT` to enforce the usage of system-wide command line sdk for macos. - When building nix derivation for boot ghc, run `configure` via the `arch` command so that `configure` and its subprocesses pick up the manually specified architecture. - Remove the previous horrible hack that obliterates `configure` to make autoconf test result in true. `configure` now properly does its job. - Remove the now obsolete configure args and post install settings file patching logic. - Use `scheme-small` for texlive to avoid build failures in certain unused texlive packages, especially on x86_64-darwin. - - - - - 94dcd15e by Matthew Pickering at 2026-01-27T21:52:05-05:00 Evaluate backtraces for "error" exceptions at the moment they are thrown See Note [Capturing the backtrace in throw] and Note [Hiding precise exception signature in throw] which explain the implementation. This commit makes `error` and `throw` behave the same with regard to backtraces. Previously, exceptions raised by `error` would not contain useful IPE backtraces. I did try and implement `error` in terms of `throw` but it started to involve putting diverging functions into hs-boot files, which seemed to risky if the compiler wouldn't be able to see if applying a function would diverge. CLC proposal: https://github.com/haskell/core-libraries-committee/issues/383 Fixes #26751 - - - - - ef35e3ea by Teo Camarasu at 2026-01-27T21:52:46-05:00 ghc-internal: move all Data instances to Data.Data Most instances of Data are defined in GHC.Internal.Data.Data. Let's move all remaining instance there. This moves other modules down in the dependency hierarchy allowing for more parallelism, and it decreases the likelihood that we would need to load this heavy .hi file if we don't actually need it. Resolves #26830 Metric Decrease: T12227 T16875 - - - - - 5e0ec555 by sheaf at 2026-01-28T06:56:38-05:00 Add test case for #25679 This commit adds the T25679 test case. The test now passes, thanks to commit 1e53277af36d3f0b6ad5491f70ffc5593a49dcfd. Fixes #25679 - - - - - f1cd1611 by sheaf at 2026-01-28T06:56:38-05:00 Improve defaulting of representational equalities This commit makes the defaulting of representational equalities, introduced in 1e53277a, a little bit more robust. Now, instead of calling the eager unifier, it calls the full-blown constraint solver, which means that it can handle some subtle situations, e.g. involving functional dependencies and type-family injectivity annotations, such as: type family F a = r | r -> a type instance F Int = Bool [W] F beta ~R Bool - - - - - 25edf516 by sheaf at 2026-01-28T06:56:38-05:00 Improve errors for unsolved representational equalities This commit adds a new field of CtLoc, CtExplanations, which allows the typechecker to leave some information about what it has done. For the moment, it is only used to improve error messages for unsolved representational equalities. The typechecker will now accumulate, when unifying at representational role: - out-of-scope newtype constructors, - type constructors that have nominal role in a certain argument, - over-saturated type constructors, - AppTys, e.g. `c a ~R# c b`, to report that we must assume that 'c' has nominal role in its parameters, - data family applications that do not reduce, potentially preventing newtype unwrapping. Now, instead of having to re-construct the possible errors after the fact, we simply consult the CtExplanations field. Additionally, this commit modifies the typechecker error messages that concern out-of-scope newtype constructors. The error message now depends on whether we have an import suggestion to provide to the user: - If we have an import suggestion for the newtype constructor, the message will be of the form: The data constructor MkN of the newtype N is out of scope Suggested fix: add 'MkN' to the import list in the import of 'M' - If we don't have any import suggestions, the message will be of the form: NB: The type 'N' is an opaque newtype, whose constructor is hidden Fixes #15850, #20289, #20468, #23731, #25949, #26137 - - - - - 4d0e6da1 by Simon Peyton Jones at 2026-01-28T06:57:19-05:00 Fix two bugs in short-cut constraint solving There are two main changes here: * Use `isSolvedWC` rather than `isEmptyWC` in `tryShortCutSolver` The residual constraint may have some fully-solved, but still-there implications, and we don't want them to abort short cut solving! That bug caused #26805. * In the short-cut solver, we abandon the fully-solved residual constraint; but we may thereby lose track of Givens that are needed, and either report them as redundant or prune evidence bindings that are in fact needed. This bug stopped the `constraints` package from compiling; see the trail in !15389. The second bug led me to (another) significant refactoring of the mechanism for tracking needed EvIds. See the new Note [Tracking needed EvIds] in GHC.Tc.Solver.Solve It's simpler and much less head-scratchy now. Some particulars: * An EvBindsVar now tracks NeededEvIds * We deal with NeededEvIds for an implication only when it is fully solved. Much simpler! * `tryShortCutTcS` now takes a `TcM WantedConstraints` rather than `TcM Bool`, so that is can plumb the needed EvIds correctly. * Remove `ic_need` and `ic_need_implic` from Implication (hooray), and add `ics_dm` and `ics_non_dm` to `IC_Solved`. Pure refactor * Shorten data constructor `CoercionHole` to `CH`, following general practice in GHC. * Rename `EvBindMap` to `EvBindsMap` for consistency - - - - - 662480b7 by Cheng Shao at 2026-01-28T06:58:00-05:00 ci: use debian validate bindists instead of fedora release bindists in testing stage This patch changes the `abi-test`, `hadrian-multi` and `perf` jobs in the full-ci pipeline testing stage to use debian validate bindists instead of fedora release bindists, to increase pipeline level parallelism and allow full-ci pipelines to complete earlier. Closes #26818. - - - - - 39581ec6 by Cheng Shao at 2026-01-28T06:58:40-05:00 ci: run perf test with -j$cores This patch makes the perf ci job compile Cabal with -j$cores to speed up the job. - - - - - 607b287b by Wolfgang Jeltsch at 2026-01-28T15:41:53+02:00 Remove `GHC.Desugar` from `base` `GHC.Desugar` was deprecated and should have been removed in GHC 9.14. However, the removal was forgotten, although there was a code block that was intended to trigger a compilation error when the GHC version in use was 9.14 or later. This code sadly didn’t work, because the `__GLASGOW_HASKELL__` macro was misspelled as `__GLASGOW_HASKELL`. - - - - - e8f5a45d by sterni at 2026-01-29T04:19:18-05:00 users_guide: fix runtime error during build with Sphinx 9.1.0 Appears that pathto is stricter about what it accepts now. Tested Sphinx 8.2.3 and 9.1.0 on the ghc-9.10 branch. Resolves #26810. Co-authored-by: Martin Weinelt <hexa(a)darmstadt.ccc.de> - - - - - ce2d62fb by Jessica Clarke at 2026-01-29T19:48:51-05:00 PPC NCG: Use libcall for 64-bit cmpxchg on 32-bit PowerPC There is no native instruction for this, and even if there were a register pair version we could use, the implementation here is assuming the values fit in a single register, and we end up only using / defining the low halves of the registers. Fixes: b4d39adbb5 ("PrimOps: Add CAS op for all int sizes") Fixes: #23969 - - - - - 43d97761 by Michael Karcher at 2026-01-29T19:49:43-05:00 NCG for PPC: add pattern for CmmRegOff to iselExpr64 Closes #26828 - - - - - aeeb4a20 by Matthew Pickering at 2026-01-30T11:42:47-05:00 determinism: Use deterministic map for Strings in TyLitMap When generating typeable evidence the types we need evidence for all cached in a TypeMap, the order terms are retrieved from a type map determines the order the bindings appear in the program. A TypeMap is quite diligent to use deterministic maps, apart from in the TyLitMap, which uses a UniqFM for storing strings, whose ordering depends on the Unique of the FastString. This can cause non-deterministic .hi and .o files. An unexpected side-effect is the error message but RecordDotSyntaxFail8 changing. I looked into this with Sam and this change caused the constraints to be solved in a different order which results in a slightly different error message. I have accepted the new test, since the output before was non-deterministic and the new output is consistent with the other messages in that file. Fixes #26846 - - - - - 9e4d70c2 by Andrew Lelechenko at 2026-01-30T11:43:29-05:00 Upgrade text submodule to 2.1.4 - - - - - 631fa5ae by Recursion Ninja at 2026-01-31T22:30:11+00:00 Decouple `L.S.H.Decls` from importing `GHC.Types.Basic` Data-types within `GHC.Types.Basic` which describe components of the AST are migrated to `Language.Haskell.Syntax.Basic`. Related function definitions are also moved. Types moved to L.H.S. because they are part of the AST: * TopLevelFlag * RuleName Types moved from L.H.S. to GHC.Hs. because they are not needed in the AST: * TyConFlavour * TypeOrData * NewOrData Migrated instances: * `Outputable` instances moved to in `GHC.Utils.Outputable` * `Binary` instance of `Boxity` moved to to `GHC.Utils.Binary` * Other `Binary` instances are orphans to be migrated later. The `OverlapMode` data-type is given a TTG extension point. The `OverlapFlag` data-type, which depends on `OverlapMode`, is updated to support `OverlapMode` with a GHC "pass" type paramerter. In order to avoid module import cycles, `OverlapMode` and `OverlapFlag` are migrated to new modules (no way around this). * Migrated `OverlapMode` to new module `Language.Haskell.Syntax.Overlap` * Migrated `OverlapFlag` to new module `GHC.Hs.Decls.Overlap` - - - - - 9769cc03 by Simon Hengel at 2026-02-01T04:21:03-05:00 Update the documentation for MultiWayIf (fixes #25376) (so that it matches the implementation) - - - - - 5fc9442a by Peter Trommler at 2026-02-01T04:21:44-05:00 hadrian: Fix dependency generation for assembler Assembler files allow # for comments unless in column 1. A modern cpp for C treats those a preprocessor directives. We tell gcc that a .S file is assembler with cpp and not C. Fixes #26819 - - - - - 269c4087 by Simon Peyton Jones at 2026-02-01T19:38:10-05:00 Include current phase in the range for rule/unfoldings This MR fixes a bad loop in the compiler: #26826. The fix is to add (WAR2) to Note [What is active in the RHS of a RULE or unfolding?] in GHC.Core.Opt.Simplify.Utils - - - - - ddf1434f by Vladislav Zavialov at 2026-02-01T19:38:52-05:00 Refactor: merge HsMultilineString into HsString (#26860) Before this patch, HsLit defined two separate constructors to represent single-line and multi-line strings: data HsLit x ... | HsString (XHsString x) FastString | HsMultilineString (XHsMultilineString x) FastString I found this to be an unnecessary complication and an obstacle to unifying HsLit with HsTyLit. Now we use HsString for both kinds of literals. One user-facing change here is `ppr (HsString st s)` behaving differently for single-line strings containing newlines: x = "first line \ \asdf\n\ \second line" Previously, the literal was fed to `ftext` with its newlines, producing an ill-formed SDoc. This issue is now addressed by using `split` for both single-line and multi-line strings: vcat $ map text $ split '\n' (unpackFS src) See the parser/should_fail/T26860ppr test. In addition (and unrelatedly to the main payload of this patch), drop the unused pmPprHsLit helper. - - - - - 2b4f463c by Simon Peyton Jones at 2026-02-02T17:32:32+00:00 Remove exprIsCheap from doFloatFromRhs See #26854 and Note [Float when expandable] This patch simplifies the code, by removing an extra unnecessary test. - - - - - 9db7f21f by Brandon Chinn at 2026-02-03T09:15:10-05:00 Refactor: make function patterns exhaustive Also added missing (==) logic for: * HsMultilineString * HsInt{8,16,32} * HsWord{8,16,32} - - - - - aa9c5e2c by Hécate Kleidukos at 2026-02-03T15:58:35-05:00 driver: Hide source paths at verbosity level 1 by default - - - - - c64cca1e by mangoiv at 2026-02-03T15:59:29-05:00 ExplicitLevelImports: check staging for types just like for values Previously, imported types were entirely exempted from staging checks as the implicit stage persistance assumed to be all imported types to be well staged. ExplicitLevelImports' change specification, however, does not do such an exemption. Thus we want to introduce such a check, just like we have for values. ExplicitLevelImports does not, however, talk about local names - from its perspective, we could theoretically keep treating locally introduced types specially - e.g. an ill-staged used in a quote would only emit a warning, not an error. To allow for a potential future migration away from such wrinkles as the staging check in notFound (see Note [Out of scope might be a staging error]) we consistently do the strict staging check that we also do for value if ExplicitLevelImports is on. Closes #26098 - - - - - 5f0dbeb6 by Simon Hengel at 2026-02-03T16:00:12-05:00 Use Haddock formatting in deprecation message of `initNameCache` - - - - - f622bf5f by Cheng Shao at 2026-02-04T09:48:00+00:00 libraries: bump Cabal submodule to 3.16.1.0 - - - - - a2d6eec4 by Cheng Shao at 2026-02-04T09:48:00+00:00 libraries: bump deepseq submodule to 1.5.2.0 Also: - Get rid of usage of deprecated `NFData` function instance in the compiler - `T21391` still relies on `NFData` function instance, add `-Wno-deprecations` for the time being. - - - - - 1fb67431 by Cheng Shao at 2026-02-04T09:48:00+00:00 libraries: bump directory submodule to 1.3.10.1 - - - - - c0df8d74 by Cheng Shao at 2026-02-04T09:48:00+00:00 libraries: bump exceptions submodule to 0.10.12 - - - - - f07adbf6 by Cheng Shao at 2026-02-04T09:48:00+00:00 libraries: bump filepath submodule to 1.5.5.0 - - - - - 229 changed files: - .gitlab-ci.yml - .gitlab/ci.sh - .gitlab/darwin/nix/sources.json - .gitlab/darwin/toolchain.nix - compiler/GHC/CmmToAsm/PPC/CodeGen.hs - 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View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/e46065bdef005a9c628b70996625b2… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/e46065bdef005a9c628b70996625b2… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][wip/marge_bot_batch_merge_job] 2 commits: testsuite: Explicitly use utf-8 encoding in rts-includes linter.
by Marge Bot (＠marge-bot) 04 Feb '26

04 Feb '26

Marge Bot pushed to branch wip/marge_bot_batch_merge_job at Glasgow Haskell Compiler / GHC Commits: d523ded8 by Andreas Klebinger at 2026-02-04T04:56:06-05:00 testsuite: Explicitly use utf-8 encoding in rts-includes linter. Not doing so caused failures on windows, as python failed to pick a reasonable encoding even with locale set. Fixes #26850 - - - - - f2387447 by Zubin Duggal at 2026-02-04T04:56:06-05:00 Bump transformers submodule to 0.6.3.0 Fixes #26790 - - - - - 2 changed files: - libraries/transformers - testsuite/tests/linters/regex-linters/check-rts-includes.py Changes: ===================================== libraries/transformers ===================================== @@ -1 +1 @@ -Subproject commit cee47cca7705edafe0a5839439e679edbd61890a +Subproject commit 0d615bc2457d5d2c695dcfdb902d88c1225beff3 ===================================== testsuite/tests/linters/regex-linters/check-rts-includes.py ===================================== @@ -12,12 +12,16 @@ import re INCLUDE_RE = re.compile('# *include ([<"][^">]+[>"])') def get_includes(file: Path) -> List[Tuple[int, str]]: - txt = file.read_text() - return [ (line_no+1, m.group(1) ) - for (line_no, line) in enumerate(txt.split('\n')) - for m in [INCLUDE_RE.match(line)] - if m is not None - if m.group(1) != "rts/PosixSource.h"] + try: + txt = file.read_text(encoding="utf-8") + return [ (line_no+1, m.group(1) ) + for (line_no, line) in enumerate(txt.split('\n')) + for m in [INCLUDE_RE.match(line)] + if m is not None + if m.group(1) != "rts/PosixSource.h"] + except Exception as e: + e.add_note(f"While reading includes from {file}") + raise def in_rts_dir(path: Path) -> bool: return len(path.parts) > 0 and path.parts[0] == 'rts' @@ -40,9 +44,14 @@ class RtsHIncludeOrderLinter(Linter): '"ghcplatform.h"', } - includes = get_includes(path) - headers = [x[1] for x in includes] - lines = path.read_text().split('\n') + try: + includes = get_includes(path) + headers = [x[1] for x in includes] + lines = path.read_text(encoding="utf-8").split('\n') + # #26850 + except Exception as e: + e.add_note(f"Error while decoding path {path}") + raise e if '"PosixSource.h"' in headers: for line_no, header in includes: @@ -69,18 +78,22 @@ class PrivateIncludeLinter(Linter): def lint(self, path: Path): private = False - lines = path.read_text().split('\n') - for line_no, include in get_includes(path): - if include == '"BeginPrivate.h"': - private = True - elif include == '"EndPrivate.h"': - private = False - elif private: - self.add_warning(Warning( - path=path, - line_no=line_no, - line_content=lines[line_no-1], - message='System header %s found inside of <BeginPrivate.h> block' % include)) + try: + lines = path.read_text(encoding="utf-8").split('\n') + for line_no, include in get_includes(path): + if include == '"BeginPrivate.h"': + private = True + elif include == '"EndPrivate.h"': + private = False + elif private: + self.add_warning(Warning( + path=path, + line_no=line_no, + line_content=lines[line_no-1], + message='System header %s found inside of <BeginPrivate.h> block' % include)) + except Exception as e: + e.add_note(f"While handling {path}") + raise e linters = [ RtsHIncludeOrderLinter(), View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/4628176246bfb9bb8a31fa782653ef… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/4628176246bfb9bb8a31fa782653ef… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][wip/marge_bot_batch_merge_job] 8 commits: libraries: bump Cabal submodule to 3.16.1.0
by Marge Bot (＠marge-bot) 04 Feb '26

04 Feb '26

Marge Bot pushed to branch wip/marge_bot_batch_merge_job at Glasgow Haskell Compiler / GHC Commits: cd23d0ec by Cheng Shao at 2026-02-04T00:14:56-05:00 libraries: bump Cabal submodule to 3.16.1.0 - - - - - aba76a1b by Cheng Shao at 2026-02-04T00:14:56-05:00 libraries: bump deepseq submodule to 1.5.2.0 Also: - Get rid of usage of deprecated `NFData` function instance in the compiler - `T21391` still relies on `NFData` function instance, add `-Wno-deprecations` for the time being. - - - - - 1dcdbfb1 by Cheng Shao at 2026-02-04T00:14:56-05:00 libraries: bump directory submodule to 1.3.10.1 - - - - - 7122a7cd by Cheng Shao at 2026-02-04T00:14:56-05:00 libraries: bump exceptions submodule to 0.10.12 - - - - - b3dce1e9 by Cheng Shao at 2026-02-04T00:14:57-05:00 libraries: bump filepath submodule to 1.5.5.0 - - - - - e09d65a1 by Cheng Shao at 2026-02-04T00:14:57-05:00 libraries: bump os-string submodule to 2.0.10 - - - - - 8c8f3858 by Andreas Klebinger at 2026-02-04T00:14:57-05:00 testsuite: Explicitly use utf-8 encoding in rts-includes linter. Not doing so caused failures on windows, as python failed to pick a reasonable encoding even with locale set. Fixes #26850 - - - - - 46281762 by Zubin Duggal at 2026-02-04T00:14:58-05:00 Bump transformers submodule to 0.6.3.0 Fixes #26790 - - - - - 10 changed files: - compiler/GHC/Unit/Module/ModIface.hs - libraries/Cabal - libraries/deepseq - libraries/directory - libraries/exceptions - libraries/filepath - libraries/os-string - libraries/transformers - testsuite/tests/linters/regex-linters/check-rts-includes.py - testsuite/tests/simplCore/should_compile/T21391.hs Changes: ===================================== compiler/GHC/Unit/Module/ModIface.hs ===================================== @@ -894,13 +894,7 @@ instance (NFData (IfaceAbiHashesExts phase), NFData (IfaceDeclExts phase)) => NF `seq` rnf a14 instance NFData IfaceCache where - rnf (IfaceCache a1 a2 a3 a4) - = rnf a1 - `seq` rnf a2 - `seq` rnf a3 - `seq` rnf a4 - - + rnf = rwhnf forceModIface :: ModIface -> IO () forceModIface iface = () <$ (evaluate $ force iface) ===================================== libraries/Cabal ===================================== @@ -1 +1 @@ -Subproject commit d9b0904b49dc84e0bfc79062daf2bbdf9d22a422 +Subproject commit 8d1f5a33662be0db0654061fb53fb00e3f4417e0 ===================================== libraries/deepseq ===================================== @@ -1 +1 @@ -Subproject commit ae2762ac241a61852c9ff4c287af234fb1ad931f +Subproject commit 882f52f51854544a467babd8cb075e3271f5913e ===================================== libraries/directory ===================================== @@ -1 +1 @@ -Subproject commit 6442a3cf04f74d82cdf8c9213324313d52b23d28 +Subproject commit 8c712e834f277544fc03e96dfbbb769126dc0a7c ===================================== libraries/exceptions ===================================== @@ -1 +1 @@ -Subproject commit 81bfd6e0ca631f315658201ae02e30046678f056 +Subproject commit a3da039855479e3c8542e8b45986599d0414ff68 ===================================== libraries/filepath ===================================== @@ -1 +1 @@ -Subproject commit cbcd0ccf92f47e6c10fb9cc513a7b26facfc19fe +Subproject commit baac7d7e76449f76fc6785e77206edb5530b6bfb ===================================== libraries/os-string ===================================== @@ -1 +1 @@ -Subproject commit c08666bf7bf528e607fc1eacc20032ec59e69df3 +Subproject commit 71f66e1af2288867becaa567dfb10c1d791b0343 ===================================== libraries/transformers ===================================== @@ -1 +1 @@ -Subproject commit cee47cca7705edafe0a5839439e679edbd61890a +Subproject commit 0d615bc2457d5d2c695dcfdb902d88c1225beff3 ===================================== testsuite/tests/linters/regex-linters/check-rts-includes.py ===================================== @@ -12,12 +12,16 @@ import re INCLUDE_RE = re.compile('# *include ([<"][^">]+[>"])') def get_includes(file: Path) -> List[Tuple[int, str]]: - txt = file.read_text() - return [ (line_no+1, m.group(1) ) - for (line_no, line) in enumerate(txt.split('\n')) - for m in [INCLUDE_RE.match(line)] - if m is not None - if m.group(1) != "rts/PosixSource.h"] + try: + txt = file.read_text(encoding="utf-8") + return [ (line_no+1, m.group(1) ) + for (line_no, line) in enumerate(txt.split('\n')) + for m in [INCLUDE_RE.match(line)] + if m is not None + if m.group(1) != "rts/PosixSource.h"] + except Exception as e: + e.add_note(f"While reading includes from {file}") + raise def in_rts_dir(path: Path) -> bool: return len(path.parts) > 0 and path.parts[0] == 'rts' @@ -40,9 +44,14 @@ class RtsHIncludeOrderLinter(Linter): '"ghcplatform.h"', } - includes = get_includes(path) - headers = [x[1] for x in includes] - lines = path.read_text().split('\n') + try: + includes = get_includes(path) + headers = [x[1] for x in includes] + lines = path.read_text(encoding="utf-8").split('\n') + # #26850 + except Exception as e: + e.add_note(f"Error while decoding path {path}") + raise e if '"PosixSource.h"' in headers: for line_no, header in includes: @@ -69,18 +78,22 @@ class PrivateIncludeLinter(Linter): def lint(self, path: Path): private = False - lines = path.read_text().split('\n') - for line_no, include in get_includes(path): - if include == '"BeginPrivate.h"': - private = True - elif include == '"EndPrivate.h"': - private = False - elif private: - self.add_warning(Warning( - path=path, - line_no=line_no, - line_content=lines[line_no-1], - message='System header %s found inside of <BeginPrivate.h> block' % include)) + try: + lines = path.read_text(encoding="utf-8").split('\n') + for line_no, include in get_includes(path): + if include == '"BeginPrivate.h"': + private = True + elif include == '"EndPrivate.h"': + private = False + elif private: + self.add_warning(Warning( + path=path, + line_no=line_no, + line_content=lines[line_no-1], + message='System header %s found inside of <BeginPrivate.h> block' % include)) + except Exception as e: + e.add_note(f"While handling {path}") + raise e linters = [ RtsHIncludeOrderLinter(), ===================================== testsuite/tests/simplCore/should_compile/T21391.hs ===================================== @@ -2,6 +2,8 @@ {-# LANGUAGE GADTs #-} {-# LANGUAGE KindSignatures #-} {-# LANGUAGE RankNTypes #-} +{-# OPTIONS_GHC -Wno-deprecations #-} + module Web.Routing.SafeRouting where import Control.DeepSeq (NFData (..)) View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/16000e3575401e4ce9d19a69c6e813… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/16000e3575401e4ce9d19a69c6e813… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][wip/T26503] Implement QualifiedStrings (#26503)
by Brandon Chinn (＠brandonchinn178) 04 Feb '26

04 Feb '26

Brandon Chinn pushed to branch wip/T26503 at Glasgow Haskell Compiler / GHC Commits: fbd62869 by Brandon Chinn at 2026-02-03T17:05:10-08:00 Implement QualifiedStrings (#26503) See Note [Implementation of QualifiedStrings] - - - - - 67 changed files: - compiler/GHC/Builtin/Types.hs - compiler/GHC/Driver/Flags.hs - compiler/GHC/Hs/Expr.hs - compiler/GHC/Hs/Instances.hs - compiler/GHC/Hs/Lit.hs - compiler/GHC/Hs/Pat.hs - compiler/GHC/Hs/Syn/Type.hs - compiler/GHC/Hs/Utils.hs - compiler/GHC/HsToCore/Expr.hs - compiler/GHC/HsToCore/Pmc/Desugar.hs - compiler/GHC/HsToCore/Quote.hs - compiler/GHC/HsToCore/Ticks.hs - compiler/GHC/Iface/Ext/Ast.hs - compiler/GHC/Parser.y - compiler/GHC/Parser/Errors/Ppr.hs - compiler/GHC/Parser/Errors/Types.hs - compiler/GHC/Parser/Lexer.x - compiler/GHC/Parser/PostProcess.hs - compiler/GHC/Parser/String.hs - compiler/GHC/Rename/Bind.hs - compiler/GHC/Rename/Expr.hs - + compiler/GHC/Rename/Lit.hs - compiler/GHC/Rename/Pat.hs - compiler/GHC/Tc/Gen/Expr.hs - compiler/GHC/Tc/Gen/Pat.hs - compiler/GHC/Tc/TyCl/PatSyn.hs - compiler/GHC/Tc/Types/Origin.hs - compiler/GHC/Tc/Zonk/Type.hs - compiler/GHC/Types/Error/Codes.hs - compiler/Language/Haskell/Syntax/Expr.hs - compiler/Language/Haskell/Syntax/Extension.hs - compiler/Language/Haskell/Syntax/Lit.hs - compiler/Language/Haskell/Syntax/Pat.hs - compiler/ghc.cabal.in - docs/users_guide/9.16.1-notes.rst - + docs/users_guide/exts/qualified_strings.rst - libraries/ghc-internal/src/GHC/Internal/LanguageExtensions.hs - testsuite/tests/driver/T4437.hs - testsuite/tests/ghc-api/annotations-literals/literals.stdout - testsuite/tests/interface-stability/template-haskell-exports.stdout - + testsuite/tests/qualified-strings/Makefile - + testsuite/tests/qualified-strings/should_compile/Example/Length.hs - + testsuite/tests/qualified-strings/should_compile/all.T - + testsuite/tests/qualified-strings/should_compile/qstrings_redundant_pattern.hs - + testsuite/tests/qualified-strings/should_compile/qstrings_redundant_pattern.stderr - + testsuite/tests/qualified-strings/should_fail/Example/Length.hs - + testsuite/tests/qualified-strings/should_fail/Makefile - + testsuite/tests/qualified-strings/should_fail/all.T - + testsuite/tests/qualified-strings/should_fail/qstrings_bad_expr.hs - + testsuite/tests/qualified-strings/should_fail/qstrings_bad_expr.stderr - + testsuite/tests/qualified-strings/should_fail/qstrings_bad_pat.hs - + testsuite/tests/qualified-strings/should_fail/qstrings_bad_pat.stderr - + testsuite/tests/qualified-strings/should_fail/qstrings_multiline_no_ext.hs - + testsuite/tests/qualified-strings/should_fail/qstrings_multiline_no_ext.stderr - + testsuite/tests/qualified-strings/should_run/Example/ByteStringAscii.hs - + testsuite/tests/qualified-strings/should_run/Example/ByteStringUtf8.hs - + testsuite/tests/qualified-strings/should_run/Example/Text.hs - + testsuite/tests/qualified-strings/should_run/Makefile - + testsuite/tests/qualified-strings/should_run/all.T - + testsuite/tests/qualified-strings/should_run/qstrings_expr.hs - + testsuite/tests/qualified-strings/should_run/qstrings_expr.stdout - + testsuite/tests/qualified-strings/should_run/qstrings_pat.hs - + testsuite/tests/qualified-strings/should_run/qstrings_pat.stdout - + testsuite/tests/qualified-strings/should_run/qstrings_th.hs - + testsuite/tests/qualified-strings/should_run/qstrings_th.stdout - utils/check-exact/ExactPrint.hs - utils/haddock/haddock-api/src/Haddock/Backends/Hyperlinker/Parser.hs The diff was not included because it is too large. View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/fbd6286948ba4ba2107331ca39d2ab8… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/fbd6286948ba4ba2107331ca39d2ab8… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][wip/marge_bot_batch_merge_job] 11 commits: driver: Hide source paths at verbosity level 1 by default
by Marge Bot (＠marge-bot) 03 Feb '26

03 Feb '26

Marge Bot pushed to branch wip/marge_bot_batch_merge_job at Glasgow Haskell Compiler / GHC Commits: aa9c5e2c by Hécate Kleidukos at 2026-02-03T15:58:35-05:00 driver: Hide source paths at verbosity level 1 by default - - - - - c64cca1e by mangoiv at 2026-02-03T15:59:29-05:00 ExplicitLevelImports: check staging for types just like for values Previously, imported types were entirely exempted from staging checks as the implicit stage persistance assumed to be all imported types to be well staged. ExplicitLevelImports' change specification, however, does not do such an exemption. Thus we want to introduce such a check, just like we have for values. ExplicitLevelImports does not, however, talk about local names - from its perspective, we could theoretically keep treating locally introduced types specially - e.g. an ill-staged used in a quote would only emit a warning, not an error. To allow for a potential future migration away from such wrinkles as the staging check in notFound (see Note [Out of scope might be a staging error]) we consistently do the strict staging check that we also do for value if ExplicitLevelImports is on. Closes #26098 - - - - - 5f0dbeb6 by Simon Hengel at 2026-02-03T16:00:12-05:00 Use Haddock formatting in deprecation message of `initNameCache` - - - - - 522afda6 by Cheng Shao at 2026-02-03T18:35:10-05:00 libraries: bump Cabal submodule to 3.16.1.0 - - - - - 8f6fcced by Cheng Shao at 2026-02-03T18:35:10-05:00 libraries: bump deepseq submodule to 1.5.2.0 Also: - Get rid of usage of deprecated `NFData` function instance in the compiler - `T21391` still relies on `NFData` function instance, add `-Wno-deprecations` for the time being. - - - - - 31ea6798 by Cheng Shao at 2026-02-03T18:35:10-05:00 libraries: bump directory submodule to 1.3.10.1 - - - - - 56f3f5a0 by Cheng Shao at 2026-02-03T18:35:11-05:00 libraries: bump exceptions submodule to 0.10.12 - - - - - f335ca7b by Cheng Shao at 2026-02-03T18:35:11-05:00 libraries: bump filepath submodule to 1.5.5.0 - - - - - a064873d by Cheng Shao at 2026-02-03T18:35:11-05:00 libraries: bump os-string submodule to 2.0.10 - - - - - 5ae12c4a by Andreas Klebinger at 2026-02-03T18:35:12-05:00 testsuite: Explicitly use utf-8 encoding in rts-includes linter. Not doing so caused failures on windows, as python failed to pick a reasonable encoding even with locale set. Fixes #26850 - - - - - 16000e35 by Zubin Duggal at 2026-02-03T18:35:12-05:00 Bump transformers submodule to 0.6.3.0 Fixes #26790 - - - - - 55 changed files: - compiler/GHC/Driver/Session.hs - compiler/GHC/Rename/HsType.hs - compiler/GHC/Rename/Splice.hs-boot - compiler/GHC/Types/Name/Cache.hs - compiler/GHC/Unit/Module/ModIface.hs - docs/users_guide/9.16.1-notes.rst - hadrian/src/Settings/Builders/RunTest.hs - libraries/Cabal - libraries/deepseq - libraries/directory - libraries/exceptions - libraries/filepath - libraries/os-string - libraries/transformers - testsuite/mk/test.mk - testsuite/tests/backpack/cabal/bkpcabal08/bkpcabal08.stdout - testsuite/tests/driver/T20030/test1/all.T - testsuite/tests/driver/T20030/test2/all.T - testsuite/tests/driver/T20030/test3/all.T - testsuite/tests/driver/T20030/test4/all.T - testsuite/tests/driver/T20030/test5/all.T - testsuite/tests/driver/T20030/test6/all.T - testsuite/tests/driver/T8526/T8526.script - testsuite/tests/driver/bytecode-object/Makefile - testsuite/tests/driver/bytecode-object/bytecode_object19.stdout - testsuite/tests/driver/dynamicToo/dynamicToo001/Makefile - testsuite/tests/driver/fat-iface/fat014.script - testsuite/tests/driver/implicit-dyn-too/Makefile - testsuite/tests/driver/multipleHomeUnits/all.T - testsuite/tests/driver/multipleHomeUnits/multipleHomeUnits_recomp_th.stdout - − testsuite/tests/ghci/linking/T11531.stderr - testsuite/tests/ghci/prog018/prog018.script - testsuite/tests/ghci/scripts/T13869.script - testsuite/tests/ghci/scripts/T13997.script - testsuite/tests/ghci/scripts/T17669.script - testsuite/tests/ghci/scripts/T18330.script - testsuite/tests/ghci/scripts/T18330.stdout - testsuite/tests/ghci/scripts/T1914.script - testsuite/tests/ghci/scripts/T20217.script - testsuite/tests/ghci/scripts/T6105.script - testsuite/tests/ghci/scripts/T8042.script - testsuite/tests/ghci/scripts/T8042recomp.script - testsuite/tests/ghci/should_run/Makefile - testsuite/tests/linters/regex-linters/check-rts-includes.py - testsuite/tests/rts/T13676.script - testsuite/tests/simplCore/should_compile/T21391.hs - + testsuite/tests/th/T26098A_quote.hs - + testsuite/tests/th/T26098A_splice.hs - + testsuite/tests/th/T26098_local.hs - + testsuite/tests/th/T26098_local.stderr - + testsuite/tests/th/T26098_quote.hs - + testsuite/tests/th/T26098_quote.stderr - + testsuite/tests/th/T26098_splice.hs - + testsuite/tests/th/T26098_splice.stderr - testsuite/tests/th/all.T The diff was not included because it is too large. View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/e346f59c8813e604c60fbc430276b8… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/e346f59c8813e604c60fbc430276b8… You're receiving this email because of your account on gitlab.haskell.org.

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