Cheng Shao pushed to branch wip/T26166 at Glasgow Haskell Compiler / GHC Commits: e10dcd65 by Sven Tennie at 2025-10-12T10:24:56+00:00 T22859: Increase threadDelay for small machines The previously used thread delay led to failures on my RISC-V test setups. - - - - - d59ef6b6 by Hai / @BestYeen at 2025-10-14T21:51:14-04:00 Change Alex and Happy m4 scripts to display which version was found in the system, adapt small formatting details in Happy script to be more like the Alex script again. - - - - - c98abb6a by Hai / @BestYeen at 2025-10-14T21:52:08-04:00 Update occurrences of return to pure and add a sample for redefining :m to mean :main - - - - - 70ee825a by Cheng Shao at 2025-10-14T21:52:50-04:00 testsuite: fix T3586 for non-SSE3 platforms `T3586.hs` contains `-fvia-C -optc-msse3` which I think is a best-effort basis to harvest the C compiler's auto vectorization optimizations via the C backend back when the test was added. The `-fvia-C` part is now a deprecated no-op because GHC can't fall back to the C backend on a non-unregisterised build, and `-optc-msse3` might actually cause the test to fail on non x86/x64 platforms, e.g. recent builds of wasi-sdk would report `wasm32-wasi-clang: error: unsupported option '-msse3' for target 'wasm32-unknown-wasi'`. So this patch cleans up this historical cruft. `-fvia-C` is removed, and `-optc-msse3` is only passed when cpuid contains `pni` (which indicates support of SSE3). - - - - - 4be32153 by Teo Camarasu at 2025-10-15T08:06:09-04:00 Add submodules for template-haskell-lift and template-haskell-quasiquoter These two new boot libraries expose stable subsets of the template-haskell interface. This is an implemenation of the GHC proposal https://github.com/ghc-proposals/ghc-proposals/pull/696 Work towards #25262 - - - - - 0c00c9c3 by Ben Gamari at 2025-10-15T08:06:51-04:00 rts: Eliminate uses of implicit constant arrays Folding of `const`-sized variable-length arrays to a constant-length array is a gnu extension which clang complains about. Closes #26502. - - - - - bf902a1d by Fendor at 2025-10-15T16:00:59-04:00 Refactor distinct constructor tables map construction Adds `GHC.Types.Unique.FM.alterUFM_L`, `GHC.Types.Unique.DFM.alterUDFM_L` `GHC.Data.Word64Map.alterLookup` to support fusion of distinct constructor data insertion and lookup during the construction of the `DataCon` map in `GHC.Stg.Debug.numberDataCon`. Co-authored-by: Fendor Co-authored-by: Finley McIlwaine - - - - - b3585ba1 by Fendor at 2025-10-15T16:00:59-04:00 Allow per constructor refinement of distinct-constructor-tables Introduce `-fno-distinct-constructor-tables`. A distinct constructor table configuration is built from the combination of flags given, in order. For example, to only generate distinct constructor tables for a few specific constructors and no others, just pass `-fdistinct-constructor-tables-only=C1,...,CN`. This flag can be supplied multiple times to extend the set of constructors to generate a distinct info table for. You can disable generation of distinct constructor tables for all configurations by passing `-fno-distinct-constructor-tables`. The various configurations of these flags is included in the `DynFlags` fingerprints, which should result in the expected recompilation logic. Adds a test that checks for distinct tables for various given or omitted constructors. Updates CountDepsAst and CountDepsParser tests to account for new dependencies. Fixes #23703 Co-authored-by: Fendor Co-authored-by: Finley McIlwaine - - - - - e17dc695 by fendor at 2025-10-15T16:01:41-04:00 Fix typos in haddock documentation for stack annotation API - - - - - d9f5f2fb by Rodrigo Mesquita at 2025-10-17T11:52:36+02:00 Move code-gen aux symbols from ghc-internal to rts These symbols were all previously defined in ghc-internal and made the dependency structure awkward, where the rts may refer to some of these symbols and had to work around that circular dependency the way described in #26166. Moreover, the code generator will produce code that uses these symbols! Therefore, they should be available in the rts: PRINCIPLE: If the code generator may produce code which uses this symbol, then it should be defined in the rts rather than, say, ghc-internal. That said, the main motivation is towards fixing #26166. Towards #26166. Pre-requisite of !14892 - - - - - 719b2b67 by Ben Gamari at 2025-10-17T11:52:36+02:00 rts: Avoid static symbol references to ghc-internal This resolves #26166, a bug due to new constraints placed by Apple's linker on undefined references. One source of such references in the RTS is the many symbols referenced in ghc-internal. To mitigate #26166, we make these references dynamic, as described in Note [RTS/ghc-internal interface]. Fixes #26166 Co-authored-by: Rodrigo Mesquita - - - - - aa4bd63c by Cheng Shao at 2025-10-17T11:52:36+02:00 WIP partial fixes for wasm - - - - - 24da4c54 by Rodrigo Mesquita at 2025-10-17T11:52:36+02:00 fixup! rts: Avoid static symbol references to ghc-internal - - - - - 37ea6152 by Rodrigo Mesquita at 2025-10-17T11:52:36+02:00 fixup! rts: Avoid static symbol references to ghc-internal - - - - - e649f421 by Cheng Shao at 2025-10-17T11:52:36+02:00 WIP: more wasm fixes - - - - - 5a1f1ae4 by Ben Gamari at 2025-10-17T11:52:36+02:00 compiler: Rename isMathFun -> isLibcFun This set includes more than just math functions. - - - - - a77c6ce0 by Ben Gamari at 2025-10-17T11:52:36+02:00 compiler: Add libc allocator functions to libc_funs Prototypes for these are now visible from `Prim.h`, resulting in multiple-declaration warnings in the unregisterised job. - - - - - 3a914a5a by Ben Gamari at 2025-10-17T11:52:36+02:00 rts: Minimize header dependencies of Prim.h Otherwise we will end up with redundant and incompatible declarations resulting in warnings during the unregisterised build. - - - - - ca0abad6 by Cheng Shao at 2025-10-17T11:52:36+02:00 WIP: fix all remaining wasm regressions for now - - - - - e559d275 by Cheng Shao at 2025-10-17T11:52:37+02:00 WIP: remove wasm dyld hack - - - - - 1e7e4506 by Cheng Shao at 2025-10-17T11:52:37+02:00 WIP: don't make init_ghc_hs_iface a constructor & remove driver hack - - - - - 3199d13b by Rodrigo Mesquita at 2025-10-17T11:52:37+02:00 re-include -u_init_ghc_hs_iface flag, see comments on #26166 - - - - - 5040c1ed by Cheng Shao at 2025-10-17T13:10:13+02:00 chore: misc cleanup - drop unused unpackCStringzh_closure from HsIface - drop duplicate I64zh_con_info in Prelude.h - prefer using macros defined in Prelude.h, instead of directly writing ghc_hs_iface->foo - - - - - 102 changed files: - .gitmodules - compiler/GHC/Cmm/CLabel.hs - compiler/GHC/CmmToAsm/Wasm/FromCmm.hs - compiler/GHC/CmmToC.hs - compiler/GHC/Data/Word64Map/Internal.hs - compiler/GHC/Data/Word64Map/Lazy.hs - compiler/GHC/Driver/Config/Stg/Debug.hs - compiler/GHC/Driver/DynFlags.hs - compiler/GHC/Driver/Flags.hs - compiler/GHC/Driver/Session.hs - compiler/GHC/HsToCore/Foreign/C.hs - compiler/GHC/HsToCore/Foreign/Wasm.hs - compiler/GHC/Iface/Flags.hs - compiler/GHC/Iface/Recomp/Flags.hs - compiler/GHC/Linker/Dynamic.hs - compiler/GHC/Linker/Static.hs - compiler/GHC/Stg/Debug.hs - + compiler/GHC/Stg/Debug/Types.hs - compiler/GHC/Types/Unique/DFM.hs - compiler/GHC/Types/Unique/FM.hs - compiler/ghc.cabal.in - docs/users_guide/debug-info.rst - docs/users_guide/ghci.rst - hadrian/src/Packages.hs - hadrian/src/Settings/Default.hs - hadrian/src/Settings/Packages.hs - libraries/ghc-experimental/src/GHC/Stack/Annotation/Experimental.hs - + libraries/ghc-internal/cbits/RtsIface.c - libraries/ghc-internal/ghc-internal.cabal.in - + libraries/ghc-internal/include/RtsIfaceSymbols.h - libraries/ghc-internal/src/GHC/Internal/TH/Lift.hs - libraries/ghc-internal/src/GHC/Internal/TH/Quote.hs - + libraries/template-haskell-lift - + libraries/template-haskell-quasiquoter - m4/fptools_alex.m4 - m4/fptools_happy.m4 - rts/BuiltinClosures.c - rts/CloneStack.h - rts/Compact.cmm - rts/ContinuationOps.cmm - rts/Exception.cmm - rts/Prelude.h - rts/PrimOps.cmm - rts/Printer.c - rts/RtsAPI.c - rts/RtsStartup.c - rts/RtsSymbols.c - + rts/RtsToHsIface.c - rts/StgStdThunks.cmm - rts/configure.ac - − rts/external-symbols.list.in - rts/include/Rts.h - rts/include/RtsAPI.h - rts/include/Stg.h - + rts/include/rts/RtsToHsIface.h - rts/include/rts/Types.h - rts/include/stg/Prim.h - rts/posix/OSMem.c - rts/posix/Signals.c - libraries/ghc-internal/cbits/atomic.c → rts/prim/atomic.c - libraries/ghc-internal/cbits/bitrev.c → rts/prim/bitrev.c - libraries/ghc-internal/cbits/bswap.c → rts/prim/bswap.c - libraries/ghc-internal/cbits/clz.c → rts/prim/clz.c - libraries/ghc-internal/cbits/ctz.c → rts/prim/ctz.c - libraries/ghc-internal/cbits/int64x2minmax.c → rts/prim/int64x2minmax.c - libraries/ghc-internal/cbits/longlong.c → rts/prim/longlong.c - libraries/ghc-internal/cbits/mulIntMayOflo.c → rts/prim/mulIntMayOflo.c - libraries/ghc-internal/cbits/pdep.c → rts/prim/pdep.c - libraries/ghc-internal/cbits/pext.c → rts/prim/pext.c - libraries/ghc-internal/cbits/popcnt.c → rts/prim/popcnt.c - libraries/ghc-internal/cbits/vectorQuotRem.c → rts/prim/vectorQuotRem.c - libraries/ghc-internal/cbits/word2float.c → rts/prim/word2float.c - − rts/rts.buildinfo.in - rts/rts.cabal - rts/wasm/JSFFI.c - rts/wasm/scheduler.cmm - rts/win32/libHSghc-internal.def - testsuite/driver/cpu_features.py - testsuite/tests/count-deps/CountDepsAst.stdout - testsuite/tests/count-deps/CountDepsParser.stdout - testsuite/tests/perf/should_run/T3586.hs - testsuite/tests/perf/should_run/all.T - testsuite/tests/rts/T22859.hs - + testsuite/tests/rts/ipe/distinct-tables/Main.hs - + testsuite/tests/rts/ipe/distinct-tables/Makefile - + testsuite/tests/rts/ipe/distinct-tables/X.hs - + testsuite/tests/rts/ipe/distinct-tables/all.T - + testsuite/tests/rts/ipe/distinct-tables/distinct_tables01.stdout - + testsuite/tests/rts/ipe/distinct-tables/distinct_tables02.stdout - + testsuite/tests/rts/ipe/distinct-tables/distinct_tables03.stdout - + testsuite/tests/rts/ipe/distinct-tables/distinct_tables04.stdout - + testsuite/tests/rts/ipe/distinct-tables/distinct_tables05.stdout - + testsuite/tests/rts/ipe/distinct-tables/distinct_tables06.stdout - + testsuite/tests/rts/ipe/distinct-tables/distinct_tables07.stdout - + testsuite/tests/rts/ipe/distinct-tables/distinct_tables08.stdout - + testsuite/tests/rts/ipe/distinct-tables/distinct_tables09.stdout - + testsuite/tests/rts/ipe/distinct-tables/distinct_tables10.stdout - + testsuite/tests/rts/ipe/distinct-tables/distinct_tables11.stdout - + testsuite/tests/rts/ipe/distinct-tables/distinct_tables12.stdout - + testsuite/tests/rts/ipe/distinct-tables/distinct_tables13.stdout - utils/deriveConstants/Main.hs - utils/jsffi/dyld.mjs The diff was not included because it is too large. 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