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[Git][ghc/ghc] Pushed new branch wip/bindist-configure-no-python
by Cheng Shao (＠TerrorJack) 10 Sep '25

10 Sep '25

Cheng Shao pushed new branch wip/bindist-configure-no-python at Glasgow Haskell Compiler / GHC -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/tree/wip/bindist-configure-no-python You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][wip/T23162-spj] 10 commits: Refactor ForAllCo
by Simon Peyton Jones (＠simonpj) 10 Sep '25

10 Sep '25

Simon Peyton Jones pushed to branch wip/T23162-spj at Glasgow Haskell Compiler / GHC Commits: 94b62aa7 by Simon Peyton Jones at 2025-09-08T03:37:14-04:00 Refactor ForAllCo This is a pure refactor, addressing #26389. It arranges that the kind coercion in a ForAllCo is a MCoercion, rather than a plain Coercion, thus removing redundancy in the common case. See (FC8) in Note [ForAllCo] It's a nice cleanup. - - - - - 624afa4a by sheaf at 2025-09-08T03:38:05-04:00 Use tcMkScaledFunTys in matchExpectedFunTys We should use tcMkScaledFunTys rather than mkScaledFunTys in GHC.Tc.Utils.Unify.matchExpectedFunTys, as the latter crashes when the kind of the result type is a bare metavariable. We know the result is always Type-like, so we don't need scaledFunTys to try to rediscover that from the kind. Fixes #26277 - - - - - 0975d2b6 by sheaf at 2025-09-08T03:38:54-04:00 Revert "Remove hptAllFamInstances usage during upsweep" This reverts commit 3bf6720eff5e86e673568e756161e6d6150eb440. - - - - - 0cf34176 by soulomoon at 2025-09-08T03:38:54-04:00 Family consistency checks: add test for #26154 This commit adds the test T26154, to make sure that GHC doesn't crash when performing type family consistency checks. This test case was extracted from Agda. Fixes #26154 - - - - - 7ec1773f by Richard Eisenberg at 2025-09-08T10:59:44+01:00 Move some fundep solving to new spot Work in progress...[skip ci] This completes moving dict fundeps to the main loop We need wanted/wanted fundeps too ...and some other refactors Wibbles Make FunDeps into a new module Solve new_eqs rather than adding them to WantedConstraints Wibble Import wibbles Comments only [skip ci] WIP on FunDeps [skip ci] Work in progress [skip ci] More WIP Wibbles to fundeps [skip ci] Kill off kickOutAfterUnification More wibbles Need to remove the unification-count stuff entirely and do more tidying up -- this commit is mainly for CI Wibbles solver Iterate the simples more often than plugins Start to extend to equalities Whitespace only Small improvements Wibbles - - - - - 7579e6d8 by Simon Peyton Jones at 2025-09-08T10:59:44+01:00 Improved error messages from fundep changes - - - - - d77d6652 by Simon Peyton Jones at 2025-09-08T10:59:44+01:00 Wibbles - - - - - 09d927e9 by Simon Peyton Jones at 2025-09-08T10:59:44+01:00 Fix typo - - - - - bb7086d6 by Simon Peyton Jones at 2025-09-08T10:59:44+01:00 Wibbles - - - - - 5ce660a3 by Simon Peyton Jones at 2025-09-10T17:37:13+01:00 Nuke FunDepOrigin1 and 2 - - - - - 69 changed files: - compiler/GHC/Core/Coercion.hs - compiler/GHC/Core/Coercion.hs-boot - compiler/GHC/Core/Coercion/Opt.hs - compiler/GHC/Core/Lint.hs - compiler/GHC/Core/Opt/Arity.hs - compiler/GHC/Core/Reduction.hs - compiler/GHC/Core/TyCo/FVs.hs - compiler/GHC/Core/TyCo/Rep.hs - compiler/GHC/Core/TyCo/Subst.hs - compiler/GHC/Core/TyCo/Tidy.hs - compiler/GHC/Core/Type.hs - compiler/GHC/Core/Unify.hs - compiler/GHC/CoreToIface.hs - compiler/GHC/Driver/Env.hs - compiler/GHC/Iface/Rename.hs - compiler/GHC/Iface/Syntax.hs - compiler/GHC/Iface/Type.hs - compiler/GHC/IfaceToCore.hs - compiler/GHC/Tc/Errors.hs - compiler/GHC/Tc/Instance/Family.hs - compiler/GHC/Tc/Instance/FunDeps.hs - compiler/GHC/Tc/Module.hs - compiler/GHC/Tc/Solver/Default.hs - compiler/GHC/Tc/Solver/Dict.hs - compiler/GHC/Tc/Solver/Equality.hs - + compiler/GHC/Tc/Solver/FunDeps.hs - compiler/GHC/Tc/Solver/InertSet.hs - compiler/GHC/Tc/Solver/Monad.hs - compiler/GHC/Tc/Solver/Solve.hs - compiler/GHC/Tc/TyCl/Utils.hs - compiler/GHC/Tc/Types/Constraint.hs - compiler/GHC/Tc/Types/Origin.hs - compiler/GHC/Tc/Utils/TcMType.hs - compiler/GHC/Tc/Utils/TcType.hs - compiler/GHC/Tc/Utils/Unify.hs - compiler/GHC/Tc/Zonk/TcType.hs - compiler/GHC/Types/Basic.hs - compiler/GHC/Types/Id/Make.hs - compiler/GHC/Unit/Home/Graph.hs - compiler/GHC/Unit/Home/PackageTable.hs - compiler/ghc.cabal.in - testsuite/tests/deriving/should_fail/T3621.stderr - testsuite/tests/indexed-types/should_fail/T9662.stderr - testsuite/tests/parser/should_fail/RecordDotSyntaxFail10.stderr - testsuite/tests/parser/should_fail/RecordDotSyntaxFail13.stderr - testsuite/tests/parser/should_fail/T20654a.stderr - testsuite/tests/partial-sigs/should_fail/T14040a.stderr - testsuite/tests/polykinds/T6068.stdout - testsuite/tests/simplCore/should_compile/OpaqueNoCastWW.stderr - testsuite/tests/typecheck/no_skolem_info/T14040.stderr - testsuite/tests/typecheck/should_compile/T13651.hs - + testsuite/tests/typecheck/should_compile/T26154.hs - + testsuite/tests/typecheck/should_compile/T26154_A.hs - + testsuite/tests/typecheck/should_compile/T26154_B.hs - + testsuite/tests/typecheck/should_compile/T26154_B.hs-boot - + testsuite/tests/typecheck/should_compile/T26154_Other.hs - + testsuite/tests/typecheck/should_compile/T26277.hs - testsuite/tests/typecheck/should_compile/all.T - testsuite/tests/typecheck/should_compile/tc126.hs - testsuite/tests/typecheck/should_fail/FD3.stderr - testsuite/tests/typecheck/should_fail/FDsFromGivens2.stderr - testsuite/tests/typecheck/should_fail/T13506.stderr - testsuite/tests/typecheck/should_fail/T19415.stderr - testsuite/tests/typecheck/should_fail/T19415b.stderr - testsuite/tests/typecheck/should_fail/T5246.stderr - testsuite/tests/typecheck/should_fail/T5978.stderr - testsuite/tests/typecheck/should_fail/T8603.stderr - testsuite/tests/typecheck/should_fail/T9612.stderr - testsuite/tests/typecheck/should_fail/tcfail143.stderr The diff was not included because it is too large. View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/44e59c0a4f2afd7013c12cefddcbab… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/44e59c0a4f2afd7013c12cefddcbab… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc] Pushed new branch wip/outputable-natural
by sheaf (＠sheaf) 10 Sep '25

10 Sep '25

sheaf pushed new branch wip/outputable-natural at Glasgow Haskell Compiler / GHC -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/tree/wip/outputable-natural You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc] Pushed new branch wip/ghc-toolchain-hie
by Cheng Shao (＠TerrorJack) 10 Sep '25

10 Sep '25

Cheng Shao pushed new branch wip/ghc-toolchain-hie at Glasgow Haskell Compiler / GHC -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/tree/wip/ghc-toolchain-hie You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][wip/alpine-3_22] 14 commits: Report solid equality errors before custom errors
by Cheng Shao (＠TerrorJack) 10 Sep '25

10 Sep '25

Cheng Shao pushed to branch wip/alpine-3_22 at Glasgow Haskell Compiler / GHC Commits: ba210d98 by Simon Peyton Jones at 2025-09-08T16:26:36+01:00 Report solid equality errors before custom errors This MR fixes #26255 by * Reporting solid equality errors like Int ~ Bool before "custom type errors". See comments in `report1` in `reportWanteds` * Suppressing errors that arise from superclasses of Wanteds. See (SCE1) in Note [Suppressing confusing errors] More details in #26255. - - - - - b6249140 by Simon Peyton Jones at 2025-09-10T10:42:38-04:00 Fix a scoping error in Specialise This small patch fixes #26329, which triggered a scoping error. Test is in T21391, with -fpolymorphic-specialisation enabled - - - - - 45305ab8 by sheaf at 2025-09-10T10:43:29-04:00 Make rationalTo{Float,Double} inline in phase 0 We hold off on inlining these until phase 0 to allow constant-folding rules to fire. However, once we get to phase 0, we should inline them, e.g. to expose unboxing opportunities. See CLC proposal #356. - - - - - 0959d4bc by Andreas Klebinger at 2025-09-10T10:44:12-04:00 Add regression test for #26056 - - - - - dc79593d by sheaf at 2025-09-10T10:45:01-04:00 Deep subsumption: unify mults without tcEqMult As seen in #26332, we may well end up with a non-reflexive multiplicity coercion when doing deep subsumption. We should do the same thing that we do without deep subsumption: unify the multiplicities normally, without requiring that the coercion is reflexive (which is what 'tcEqMult' was doing). Fixes #26332 - - - - - 4bfe2269 by sheaf at 2025-09-10T10:45:50-04:00 lint-codes: fixup MSYS drive letter on Windows This change ensures that System.Directory.listDirectory doesn't trip up on an MSYS-style path like '/c/Foo' when trying to list all testsuite stdout/stderr files as required for testing coverage of GHC diagnostic codes in the testsuite. Fixes #25178 - - - - - 56540775 by Ben Gamari at 2025-09-10T10:46:32-04:00 gitlab-ci: Disable split sections on FreeBSD Due to #26303. - - - - - 1537784b by Moritz Angermann at 2025-09-10T10:47:13-04:00 Improve mach-o relocation information This change adds more information about the symbol and addresses we try to relocate in the linker. This significantly helps when deubbging relocation issues reported by users. - - - - - 4e67855b by Moritz Angermann at 2025-09-10T10:47:54-04:00 test.mk expect GhcLeadingUnderscore, not LeadingUnderscore (in line with the other Ghc prefixed variables. - - - - - c1cdd265 by Moritz Angermann at 2025-09-10T10:48:35-04:00 testsuite: Fix broken exec_signals_child.c There is no signal 0. The signal mask is 1-32. - - - - - 99ac335c by Moritz Angermann at 2025-09-10T10:49:15-04:00 testsuite: clarify Windows/Darwin locale rationale for skipping T6037 T2507 T8959a - - - - - 0e8fa77a by Moritz Angermann at 2025-09-10T10:49:56-04:00 Skip broken tests on macOS (due to leading underscore not handled properly in the expected output.) - - - - - 28570c59 by Zubin Duggal at 2025-09-10T10:50:37-04:00 docs(sphinx): fix links to reverse flags when using the :ghc-flag:`-fno-<flag>` syntax This solution is rather hacky and I suspect there is a better way to do this but I don't know enough about Sphinx to do better. Fixes #26352 - - - - - d17257ed by Cheng Shao at 2025-09-10T17:01:27+02:00 rel-eng: update alpine images to 3.22 This patch is a part of #25876 and updates alpine images to 3.22, while still retaining 3.12 for x86_64 fully_static bindists. ------------------------- Metric Decrease: MultiComponentModulesRecomp ------------------------- - - - - - 36 changed files: - .gitlab-ci.yml - .gitlab/generate-ci/gen_ci.hs - .gitlab/jobs.yaml - .gitlab/rel_eng/fetch-gitlab-artifacts/fetch_gitlab.py - .gitlab/rel_eng/mk-ghcup-metadata/mk_ghcup_metadata.py - compiler/GHC/Core/Opt/Specialise.hs - compiler/GHC/Core/Type.hs - compiler/GHC/Core/Unify.hs - compiler/GHC/HsToCore/Pmc/Solver.hs - compiler/GHC/Tc/Errors.hs - compiler/GHC/Tc/Types/Constraint.hs - compiler/GHC/Tc/Utils/TcType.hs - compiler/GHC/Tc/Utils/Unify.hs - docs/users_guide/flags.py - hadrian/src/Oracles/TestSettings.hs - libraries/base/changelog.md - libraries/ghc-internal/src/GHC/Internal/Float.hs - linters/lint-codes/LintCodes/Coverage.hs - rts/linker/MachO.c - testsuite/ghc-config/ghc-config.hs - testsuite/tests/driver/all.T - + testsuite/tests/linear/should_compile/T26332.hs - testsuite/tests/linear/should_compile/all.T - + testsuite/tests/profiling/should_compile/T26056.hs - testsuite/tests/profiling/should_compile/all.T - testsuite/tests/rts/exec_signals_child.c - testsuite/tests/rts/linker/T11223/all.T - testsuite/tests/typecheck/should_fail/T18851.hs - + testsuite/tests/typecheck/should_fail/T26255a.hs - + testsuite/tests/typecheck/should_fail/T26255a.stderr - + testsuite/tests/typecheck/should_fail/T26255b.hs - + testsuite/tests/typecheck/should_fail/T26255b.stderr - + testsuite/tests/typecheck/should_fail/T26255c.hs - + testsuite/tests/typecheck/should_fail/T26255c.stderr - testsuite/tests/typecheck/should_fail/UnliftedNewtypesFamilyKindFail2.stderr - testsuite/tests/typecheck/should_fail/all.T The diff was not included because it is too large. View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/6bd9fe984e395653dbfaff40005b5f… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/6bd9fe984e395653dbfaff40005b5f… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc] Pushed new branch wip/ghc-unicode-17
by Cheng Shao (＠TerrorJack) 10 Sep '25

10 Sep '25

Cheng Shao pushed new branch wip/ghc-unicode-17 at Glasgow Haskell Compiler / GHC -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/tree/wip/ghc-unicode-17 You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][master] docs(sphinx): fix links to reverse flags when using the :ghc-flag:`-fno-<flag>` syntax
by Marge Bot (＠marge-bot) 10 Sep '25

10 Sep '25

Marge Bot pushed to branch master at Glasgow Haskell Compiler / GHC Commits: 28570c59 by Zubin Duggal at 2025-09-10T10:50:37-04:00 docs(sphinx): fix links to reverse flags when using the :ghc-flag:`-fno-<flag>` syntax This solution is rather hacky and I suspect there is a better way to do this but I don't know enough about Sphinx to do better. Fixes #26352 - - - - - 1 changed file: - docs/users_guide/flags.py Changes: ===================================== docs/users_guide/flags.py ===================================== @@ -236,8 +236,10 @@ class Flag(GenericFlag): reverse = self.options.get('reverse') if reverse is not None and reverse != '': # Make this also addressable via the reverse flag + # Strip leading hyphen to avoid double hyphen in anchor ID + clean_name = name[1:] if name.startswith('-') else name self.env.domaindata['std']['objects']['ghc-flag', reverse] = \ - self.env.docname, 'ghc-flag-%s' % name + self.env.docname, 'ghc-flag-%s' % clean_name # This class inherits from Sphinx's internal GenericObject, which drives # the add_object_type() utility function. We want to keep that tooling, View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/28570c596be4df36e5d83af0e4d5086… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/28570c596be4df36e5d83af0e4d5086… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][master] Skip broken tests on macOS (due to leading underscore not handled properly in the expected output.)
by Marge Bot (＠marge-bot) 10 Sep '25

10 Sep '25

Marge Bot pushed to branch master at Glasgow Haskell Compiler / GHC Commits: 0e8fa77a by Moritz Angermann at 2025-09-10T10:49:56-04:00 Skip broken tests on macOS (due to leading underscore not handled properly in the expected output.) - - - - - 1 changed file: - testsuite/tests/rts/linker/T11223/all.T Changes: ===================================== testsuite/tests/rts/linker/T11223/all.T ===================================== @@ -33,7 +33,12 @@ test('T11223_simple_duplicate', test('T11223_simple_duplicate_lib', [extra_files(['bar.c', 'foo.c', 'foo.hs']), - when(ghc_dynamic(), skip), normalise_errmsg_fun(normalise_duplicate_errmsg), + when(ghc_dynamic(), skip), + # Darwin/Mach-O reports external C symbols with a leading underscore (e.g. _a, _c) + # which our expected stderr (shared with ELF platforms) does not account for. + # Rather than broaden normalisation here, skip on darwin for now. + when(opsys('darwin'), skip), + normalise_errmsg_fun(normalise_duplicate_errmsg), req_c], makefile_test, ['t_11223_simple_duplicate_lib']) @@ -57,7 +62,10 @@ test('T11223_link_order_b_a_succeed', test('T11223_link_order_a_b_2_fail', [extra_files(['bar.c', 'foo.c', 'foo3.hs']), - when(ghc_dynamic(), skip), normalise_errmsg_fun(normalise_duplicate_errmsg), + when(ghc_dynamic(), skip), + # See note above about Mach-O leading underscores; skip on darwin. + when(opsys('darwin'), skip), + normalise_errmsg_fun(normalise_duplicate_errmsg), req_c], makefile_test, ['t_11223_link_order_a_b_2_fail']) View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/0e8fa77a72c601c9f4ee661bb9f335f… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/0e8fa77a72c601c9f4ee661bb9f335f… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][master] testsuite: clarify Windows/Darwin locale rationale for skipping T6037 T2507 T8959a
by Marge Bot (＠marge-bot) 10 Sep '25

10 Sep '25

Marge Bot pushed to branch master at Glasgow Haskell Compiler / GHC Commits: 99ac335c by Moritz Angermann at 2025-09-10T10:49:15-04:00 testsuite: clarify Windows/Darwin locale rationale for skipping T6037 T2507 T8959a - - - - - 1 changed file: - testsuite/tests/driver/all.T Changes: ===================================== testsuite/tests/driver/all.T ===================================== @@ -179,24 +179,23 @@ test('T7060', [], makefile_test, []) test('T7130', normal, compile_fail, ['-fflul-laziness']) test('T7563', when(unregisterised(), skip), makefile_test, []) test('T6037', - # The testsuite doesn't know how to set a non-Unicode locale on Windows or MacOS < Sonoma. - # Because in previous version of MacOS the test is still broken, we mark it as fragile. + # Requires forcing a 7-bit/ASCII-only locale. + # - On Windows (mingw32) the testsuite can't reliably set a non-Unicode C locale -> expect_fail. + # - On modern Darwin there are no pure ASCII locales available -> skip. [when(opsys('mingw32'), expect_fail), - when(opsys('darwin'), fragile(24161)) + when(opsys('darwin'), skip) ], makefile_test, []) test('T2507', - # The testsuite doesn't know how to set a non-Unicode locale on Windows or MacOS < Sonoma - # Because in previous version of MacOS the test is still broken, we mark it as fragile. + # Same locale assumptions as T6037 (ASCII-only needed, unavailable on Darwin; untestable on Windows). [when(opsys('mingw32'), expect_fail), - when(opsys('darwin'), fragile(24161)) + when(opsys('darwin'), skip) ], makefile_test, []) test('T8959a', - # The testsuite doesn't know how to set a non-Unicode locale on Windows or MacOS < Sonoma - # Because in previous version of MacOS the test is still broken, we mark it as fragile. + # Same locale assumptions as T6037 (ASCII-only needed, unavailable on Darwin; untestable on Windows). [when(opsys('mingw32'), expect_fail), - when(opsys('darwin'), fragile(24161)) + when(opsys('darwin'), skip) ], makefile_test, []) View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/99ac335c54b648d04ced28e2a4d3840… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/99ac335c54b648d04ced28e2a4d3840… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][master] testsuite: Fix broken exec_signals_child.c
by Marge Bot (＠marge-bot) 10 Sep '25

10 Sep '25

Marge Bot pushed to branch master at Glasgow Haskell Compiler / GHC Commits: c1cdd265 by Moritz Angermann at 2025-09-10T10:48:35-04:00 testsuite: Fix broken exec_signals_child.c There is no signal 0. The signal mask is 1-32. - - - - - 1 changed file: - testsuite/tests/rts/exec_signals_child.c Changes: ===================================== testsuite/tests/rts/exec_signals_child.c ===================================== @@ -2,8 +2,11 @@ #include <stdio.h> #include <errno.h> -// Prints the state of the signal handlers to stdout -int main() +// Prints the state of the signal handlers to stdout. +// NOTE: We intentionally start at signal 1 (not 0). Signal number 0 is not a +// real signal; passing 0 to sigismember/sigaction is undefined behaviour and +// on Darwin was observed to yield memory corruption / junk bytes in output. +int main(void) { int open = 0, i; sigset_t blockedsigs; @@ -11,7 +14,7 @@ int main() printf("ChildInfo { masked = ["); sigprocmask(SIG_BLOCK, NULL, &blockedsigs); - for(i = 0; i < NSIG; ++i) + for(i = 1; i < NSIG; ++i) { int ret = sigismember(&blockedsigs, i); if(ret >= 0) @@ -26,7 +29,7 @@ int main() printf("], handlers = ["); open = 0; - for(i = 0; i < NSIG; ++i) + for(i = 1; i < NSIG; ++i) { struct sigaction old; if(sigaction(i, NULL, &old) >= 0) View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/c1cdd26507fa0b7cb7585af5a7b2ec5… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/c1cdd26507fa0b7cb7585af5a7b2ec5… You're receiving this email because of your account on gitlab.haskell.org.

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