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[Git][ghc/ghc][wip/ghc-9.14-final] 2 commits: rel-notes: updates for final 9.14.1 release
by Zubin (＠wz1000) 17 Dec '25

17 Dec '25

Zubin pushed to branch wip/ghc-9.14-final at Glasgow Haskell Compiler / GHC Commits: 9589591f by Zubin Duggal at 2025-12-18T02:13:34+05:30 rel-notes: updates for final 9.14.1 release - - - - - b6175085 by Zubin Duggal at 2025-12-18T02:13:34+05:30 Prepare final 9.14.1 release - - - - - 3 changed files: - configure.ac - docs/users_guide/9.14.1-notes.rst - libraries/base/changelog.md Changes: ===================================== configure.ac ===================================== @@ -22,7 +22,7 @@ AC_INIT([The Glorious Glasgow Haskell Compilation System], [9.14.0], [glasgow-ha AC_CONFIG_MACRO_DIRS([m4]) # Set this to YES for a released version, otherwise NO -: ${RELEASE=NO} +: ${RELEASE=YES} # The primary version (e.g. 7.5, 7.4.1) is set in the AC_INIT line # above. If this is not a released version, then we will append the ===================================== docs/users_guide/9.14.1-notes.rst ===================================== @@ -110,6 +110,9 @@ Language - Explicit level import support, allowing ``import`` declarations to explicitly state which compilation stages they are are visible to. +- Fix handling of tabs in string gaps (:ghc-ticket:`26415`). Tabs are now + correctly treated as whitespace in string gaps, matching the Haskell Report. + Compiler ~~~~~~~~ @@ -160,6 +163,23 @@ Compiler - Initial native code generator support for the LoongArch CPU architecture. +- Several fixes to :extension:`DeepSubsumption` type checking, improving handling + of higher-rank types in various contexts (:ghc-ticket:`26225`, :ghc-ticket:`26255`, + :ghc-ticket:`26277`, :ghc-ticket:`26331`, :ghc-ticket:`26332`). + +- Fix a scoping error in the Specialiser that could cause incorrect code generation + with :ghc-flag:`-fpolymorphic-specialisation` (:ghc-ticket:`26329`). + +- Fix a long-standing bug in the coercion optimiser that could produce invalid + coercions for ``ForAllCo`` (:ghc-ticket:`26345`). + +- Fix the type-family occurs check in unification (:ghc-ticket:`26457`). + +- Fix solving of forall-constraints (quantified constraints) to avoid infinite + loops in certain cases (:ghc-ticket:`26314`, :ghc-ticket:`26315`, :ghc-ticket:`26376`). + +- Fix reporting of redundant constraints on default-method declarations + (:ghc-ticket:`25992`). GHCi ~~~~ @@ -188,6 +208,12 @@ GHCi debugging clients * Internal refactorings towards making the debugger multi-thread aware (:ghc-ticket:`26064`) +- Fix bytecode generation for unsaturated applications of data constructor + workers (:ghc-ticket:`23210`). + +- Fix bytecode to use 32 bits for breakpoint indices, allowing more breakpoints + in large modules (:ghc-ticket:`26325`). + WebAssembly backend ~~~~~~~~~~~~~~~~~~~ @@ -201,6 +227,18 @@ See the blog post on `Tweag's blog <https://www.tweag.io/blog/2025-04-17-wasm-ghci-browser/>`_ for more information. +- Fix handling of forward declared ``GOT.func`` items in the wasm dynamic + linker (:ghc-ticket:`26430`). + +- Fix ``setKeepCAFs()`` to be properly called during wasm GHCi initialization + (:ghc-ticket:`26106`). + +- Fix JSFFI initialization constructor code to avoid clashing with user-defined + main functions. + +- Improve error handling in the JavaScript linker when library directories + are misconfigured (:ghc-ticket:`26383`). + Runtime system ~~~~~~~~~~~~~~ @@ -212,17 +250,44 @@ Runtime system - Reorganise how certain symbols are linked to avoid a bootstrapping failure with the linker shipping newer macOS versions (:ghc-ticket:`26166`) +- Fix eager black holes handling: properly record mutated closures and fix + an incorrect assertion that could cause issues with multiple threads racing + to claim a black hole (:ghc-ticket:`26495`) + +- Fix the Windows runtime linker to copy DLL path strings before inserting + them into the cache, preventing use-after-free issues (:ghc-ticket:`26613`) + +- Fix lost wakeups in ``threadPaused`` for threads blocked on black holes, + which could cause hangs in concurrent programs (:ghc-ticket:`26324`). + +- Fix heap reservation logic on POSIX systems to avoid infinite loops when + the OS repeatedly returns low memory addresses (:ghc-ticket:`26151`). + +- Fix handling of ``WHITEHOLE`` closures in ``scavenge_one`` when using the + non-moving garbage collector (:ghc-ticket:`26204`). + +- Fix alignment for ``gen_workspace`` on s390x to allow bootstrap on that + platform (:ghc-ticket:`26334`). + +- Push the correct update frame type in ``stg_AP_STACK`` for eager black holes. + ``base`` library ~~~~~~~~~~~~~~~~ - Updated to `Unicode 17.0.0 <https://www.unicode.org/versions/Unicode17.0.0>`_. +- Removed unstable heap representation details from ``GHC.Exts`` (:ghc-ticket:`25110`). + ``ghc-prim`` library ~~~~~~~~~~~~~~~~~~~~ ``ghc-prim`` is now a legacy interface providing access to primitive operations and types which are now also exposed via the ``ghc-experimental`` package. +- A new primop ``annotateStack#`` has been added, allowing arbitrary data to be + pushed onto the call stack for later extraction when decoding stack traces + (:ghc-ticket:`26218`). + ``ghc`` library ~~~~~~~~~~~~~~~ @@ -263,6 +328,16 @@ and types which are now also exposed via the ``ghc-experimental`` package. reading of the relevant Closure attributes without reliance on incomplete selectors. +* Fix a race condition with profiling builds (:ghc-ticket:`15197`, :ghc-ticket:`26407`). + +* Fix stack decoding when using the profiled runtime (:ghc-ticket:`26507`). + +``ghc-internal`` library +~~~~~~~~~~~~~~~~~~~~~~~~ + +* Fix ``naturalAndNot`` for the ``NB``/``NS`` (native bignum) case + (:ghc-ticket:`26230`). + ``ghc-experimental`` library ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ===================================== libraries/base/changelog.md ===================================== @@ -1,6 +1,6 @@ # Changelog for [`base` package](http://hackage.haskell.org/package/base) -## 4.22.0.0 *TBA* +## 4.22.0.0 *December 2025* * Shipped with GHC 9.14.1 * The internal `GHC.Weak.Finalize.runFinalizerBatch` function has been deprecated ([CLC proposal #342](https://github.com/haskell/core-libraries-committee/issues/342)) * Define `displayException` of `SomeAsyncException` to unwrap the exception. View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/b75850afff8c5c8ac8ed5775ead6a4… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/b75850afff8c5c8ac8ed5775ead6a4… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][wip/terrorjack/asan] 2 commits: rts: add ASAN instrumentation to mblock allocator
by Cheng Shao (＠TerrorJack) 17 Dec '25

17 Dec '25

Cheng Shao pushed to branch wip/terrorjack/asan at Glasgow Haskell Compiler / GHC Commits: 54e1c714 by Cheng Shao at 2025-12-17T21:24:57+01:00 rts: add ASAN instrumentation to mblock allocator - - - - - bc23bc7a by Cheng Shao at 2025-12-17T21:25:05+01:00 rts: add ASAN instrumentation to per-Task InCall free list - - - - - 5 changed files: - rts/Task.c - rts/include/Stg.h - + rts/include/rts/ASANUtils.h - rts/rts.cabal - rts/sm/MBlock.c Changes: ===================================== rts/Task.c ===================================== @@ -183,6 +183,7 @@ freeTask (Task *task) stgFree(incall); } for (incall = task->spare_incalls; incall != NULL; incall = next) { + __ghc_asan_unpoison_memory_region(incall, sizeof(InCall)); next = incall->next; stgFree(incall); } @@ -252,6 +253,7 @@ newInCall (Task *task) if (task->spare_incalls != NULL) { incall = task->spare_incalls; + __ghc_asan_unpoison_memory_region(incall, sizeof(InCall)); task->spare_incalls = incall->next; task->n_spare_incalls--; } else { @@ -283,6 +285,7 @@ endInCall (Task *task) stgFree(incall); } else { incall->next = task->spare_incalls; + __ghc_asan_poison_memory_region(incall, sizeof(InCall)); task->spare_incalls = incall; task->n_spare_incalls++; } ===================================== rts/include/Stg.h ===================================== @@ -335,6 +335,7 @@ external prototype return neither of these types to workaround #11395. #include "stg/MachRegsForHost.h" #include "stg/Regs.h" #include "stg/Ticky.h" +#include "rts/ASANUtils.h" #include "rts/TSANUtils.h" #if IN_STG_CODE ===================================== rts/include/rts/ASANUtils.h ===================================== @@ -0,0 +1,33 @@ +#pragma once + +#if defined(__SANITIZE_ADDRESS__) +#define ASAN_ENABLED +#elif defined(__has_feature) +#if __has_feature(address_sanitizer) +#define ASAN_ENABLED +#endif +#endif + +#if defined(ASAN_ENABLED) +#include <sanitizer/asan_interface.h> +#define USED_IF_ASAN +#else +#include <stdlib.h> +#define USED_IF_ASAN __attribute__((unused)) +#endif + +static inline void +__ghc_asan_poison_memory_region(void const volatile *addr USED_IF_ASAN, + size_t size USED_IF_ASAN) { +#if defined(ASAN_ENABLED) + __asan_poison_memory_region(addr, size); +#endif +} + +static inline void +__ghc_asan_unpoison_memory_region(void const volatile *addr USED_IF_ASAN, + size_t size USED_IF_ASAN) { +#if defined(ASAN_ENABLED) + __asan_unpoison_memory_region(addr, size); +#endif +} ===================================== rts/rts.cabal ===================================== @@ -289,6 +289,7 @@ library -- ^ generated rts/ghc_ffi.h rts/Adjustor.h + rts/ASANUtils.h rts/ExecPage.h rts/BlockSignals.h rts/Bytecodes.h ===================================== rts/sm/MBlock.c ===================================== @@ -579,6 +579,8 @@ getMBlocks(uint32_t n) ret = getCommittedMBlocks(n); + __ghc_asan_unpoison_memory_region(ret, (W_)n * MBLOCK_SIZE); + debugTrace(DEBUG_gc, "allocated %d megablock(s) at %p",n,ret); mblocks_allocated += n; @@ -611,6 +613,8 @@ freeMBlocks(void *addr, uint32_t n) mblocks_allocated -= n; + __ghc_asan_poison_memory_region(addr, (W_)n * MBLOCK_SIZE); + decommitMBlocks(addr, n); } View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/d8793b80e396108d886d7fa99361a6… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/d8793b80e396108d886d7fa99361a6… 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] 13 commits: X86 CodeGen: fix assign_eax_sse_regs
by Marge Bot (＠marge-bot) 17 Dec '25

17 Dec '25

Marge Bot pushed to branch wip/marge_bot_batch_merge_job at Glasgow Haskell Compiler / GHC Commits: fc207593 by sheaf at 2025-12-17T14:59:34-05:00 X86 CodeGen: fix assign_eax_sse_regs We must set %al to the number of SSE2 registers that contain arguments (in case we are dealing with a varargs function). The logic for counting how many arguments reside in SSE2 registers was incorrect, as it used 'isFloatFormat', which incorrectly ignores vector registers. We now instead do case analysis on the register class: is_sse_reg r = case targetClassOfReg platform r of RcFloatOrVector -> True RcInteger -> False This change is necessary to prevent segfaults in T20030_test1j, because subsequent commits change the format calculations, resulting in vector formats more often. - - - - - a430c6cf by sheaf at 2025-12-17T14:59:34-05:00 X86 regUsageOfInstr: fix format for IMUL When used with 8-bit operands, the IMUL instruction returns the result in the lower 16 bits of %rax (also known as %ax). This is different than for the other sizes, where an input at 16, 32 or 64 bits will result in 16, 32 or 64 bits of output in both %rax and %rdx. This doesn't affect the behaviour of the compiler, because we don't allow partial writes at sub-word sizes. The rationale is explained in Wrinkle [Don't allow scalar partial writes] in Note [Register formats in liveness analysis], in GHC.CmmToAsm.Reg.Liveness. - - - - - 0c801264 by sheaf at 2025-12-17T14:59:34-05:00 Liveness analysis: consider register formats This commit updates the register allocator to be a bit more careful in situations in which a single register is used at multiple different formats, e.g. when xmm1 is used both to store a Double# and a DoubleX2#. This is done by introducing the 'Regs' newtype around 'UniqSet RegWithFormat', for which the combining operations take the larger of the two formats instead of overriding the format. Operations on 'Regs' are defined in 'GHC.CmmToAsm.Reg.Regs'. There is a modest compile-time cost for the additional overhead for tracking register formats, which causes the metric increases of this commit. The subtle aspects of the implementation are outlined in Note [Register formats in liveness analysis] in GHC.CmmToAsm.Reg.Liveness. Fixes #26411 #26611 ------------------------- Metric Increase: T12707 T26425 T3294 ------------------------- - - - - - 1f1fc7f0 by sheaf at 2025-12-17T14:59:34-05:00 Register allocator: reload at same format as spill This commit ensures that if we spill a register onto the stack at a given format, we then always reload the register at this same format. This ensures we don't end up in a situation where we spill F64x2 but end up only reloading the lower F64. This first reload would make us believe the whole data is in a register, thus silently losing the upper 64 bits of the spilled register's contents. Fixes #26526 - - - - - b1a5dcc3 by sheaf at 2025-12-17T14:59:34-05:00 Register allocation: writes redefine format As explained in Note [Allocated register formats] in GHC.CmmToAsm.Reg.Linear, we consider all writes to redefine the format of the register. This ensures that in a situation such as movsd .Ln6m(%rip),%v1 shufpd $0,%v1,%v1 we properly consider the broadcast operation to change the format of %v1 from F64 to F64x2. This completes the fix to #26411 (test in T26411b). - - - - - 177d9a60 by Vladislav Zavialov at 2025-12-17T14:59:35-05:00 Parser: improve mkModuleImpExp, remove checkImportSpec 1. The `mkModuleImpExp` helper now knows whether it is processing an import or export list item, and uses this information to produce a more accurate error message for `import M (T(..,x))` with PatternSynonyms disabled. The old message incorrectly referred to this case as an export form. 2. The `checkImportSpec` helper is removed in favor of more comprehensive error checking in `mkModuleImpExp`. 3. Additionaly, the invariants of `ImpExpList` and `ImpExpAllWith` have been made more explicit in the comments and assertions (calls to 'panic'). Test case: import-syntax-no-ext - - - - - e669d00e by Vladislav Zavialov at 2025-12-17T14:59:36-05:00 Subordinate namespace-specified wildcards (#25901) Add support for subordinate namespace-specified wildcards `X(type ..)` and `X(data ..)` to import and export lists. Examples: import M (Cls(type ..)) -- imports Cls and all its associated types import M (Cls(data ..)) -- imports Cls and all its methods module M (R(data ..), C(type ..)) where -- exports R and all its data constructors and record fields; -- exports C and all its associated types, but not its methods The scope of this change is limited to the case where the wildcard is the only subordinate import/export item, whereas the more complex forms `X(type .., f)` or `X(type .., data ..)` are unsupported and raise the newly introduced PsErrUnsupportedExplicitNamespace error. This restriction may be lifted later. Summary of the changes: 1. Refactor IEThingAll to store its extension field XIEThingAll as a record IEThingAllExt instead of a tuple. 2. Extend the AST by adding a NamespaceSpecifier field to IEThingAllExt, representing an optional namespace specifier `type` or `data` in front of a subordinate wildcard `X(..)`. 3. Extend the grammar in Parser.y with productions for `type ..` and `data ..` in subordinate import/export items. 4. Introduce `filterByNamespaceGREs` to filter [GlobalRdrElt] by a NamespaceSpecifier; use it in `filterImports` and `exports_from_avail` to account for the namespace specifier in IEThingAll. 5. Improve diagnostics by storing more information in DodgyImportsEmptyParent and DodgyExportsEmptyParent. Test cases: T25901_sub_e T25901_sub_f T25901_sub_g T25901_sub_a T25901_sub_b T25901_sub_c T25901_sub_d T25901_sub_w DodgyImports02 DodgyImports03 DodgyImports04 - - - - - 1f12bb67 by Recursion Ninja at 2025-12-17T14:59:36-05:00 Removing the 'Data' instance for 'InstEnv'. The 'Data' instance is blocking work on Trees that Grow, and the 'Data' instance seem to have been added without a clear purpose. - - - - - 5f6f8b7b by Recursion Ninja at 2025-12-17T14:59:37-05:00 'Decouple Language.Haskell.Syntax.Decls' from 'GHC.Unit.Module.Warnings' - - - - - 0cea194b by Sylvain Henry at 2025-12-17T14:59:59-05:00 Doc: document -pgmi "" (#26634) - - - - - bffb177e by Cheng Shao at 2025-12-17T15:00:02-05:00 rts: use __builtin_mul_overflow for hs_mulIntMayOflo This patch uses `__builtin_mul_overflow` to implement `hs_mulIntMayOflo`. This is a GNU C checked arithmetic builtin function supported by gcc/clang, is type-generic so works for both 32-bit/64-bit, and makes the code both more efficient and easier to read/maintain than the previous hand rolled logic. - - - - - a9de370a by Cheng Shao at 2025-12-17T15:00:03-05:00 compiler/rts: fix ABI mismatch in barf() invocations This patch fixes a long-standing issue of ABI mismatch in `barf()` invocations, both in compiler-emitted code and in hand written Cmm code: - In RTS, we have `barf()` which reports a fatal internal error message and exits the program. - `barf()` is a variadic C function! When used as a callee of a foreign call with `ccall` calling convention instead of `capi`, there is an ABI mismatch between the caller and the callee! - Unfortunately, both the compiler and the Cmm sources contain many places where we call `barf()` via `ccall` convention!! Like, when you write `foreign "C" barf("foo object (%p) entered!", R1)`, it totally doesn't do what you think it'll do at all!! The second argument `R1` is not properly passed in `va_list`, and the behavior is completely undefined!! - Even more unfortunately, this issue has been sitting around long enough because the ABI mismatch is subtle enough on normie platforms like x64 and arm64. - But there are platforms like wasm32 that are stricter about ABI, and the broken `barf()` invocations already causes trouble for wasm backend: we had to use ugly hacks like `barf(errmsg, NULL)` to make `wasm-ld` happy, and even with this band-aid, compiler-generated `barf()` invocations are still broken, resulting in regressions in certain debug-related functionality, e.g. `-dtag-inference-checks` is broken on wasm32 (#22882). This patch properly fixes the issue: - We add non-variadic `barf` wrappers in the RTS that can be used as `ccall` callees - Both the compiler `emitBarf` logic and the hand-written Cmm are changed to call these wrappers - `emitBarf` now also properly annotates the foreign call as `CmmNeverReturns` to indicate it's a noreturn call to enable more efficient code generation `-dtag-inference-checks` now works on wasm. Closes #22882. Co-authored-by: Codex <codex(a)openai.com> - - - - - 71846e5e by Vilim Lendvaj at 2025-12-17T15:00:07-05:00 Remove outdated comment The Traversable instance for ZipList is no longer in GHC.Internal.Data.Traversable. In fact, it is right below this very comment. - - - - - 105 changed files: - compiler/GHC/Builtin/Utils.hs - compiler/GHC/CmmToAsm/Reg/Graph.hs - compiler/GHC/CmmToAsm/Reg/Graph/Coalesce.hs - compiler/GHC/CmmToAsm/Reg/Graph/Spill.hs - compiler/GHC/CmmToAsm/Reg/Graph/SpillCost.hs - compiler/GHC/CmmToAsm/Reg/Linear.hs - compiler/GHC/CmmToAsm/Reg/Linear/Base.hs - compiler/GHC/CmmToAsm/Reg/Linear/JoinToTargets.hs - compiler/GHC/CmmToAsm/Reg/Liveness.hs - + compiler/GHC/CmmToAsm/Reg/Regs.hs - compiler/GHC/CmmToAsm/Reg/Target.hs - compiler/GHC/CmmToAsm/X86/CodeGen.hs - compiler/GHC/CmmToAsm/X86/Instr.hs - compiler/GHC/CmmToC.hs - compiler/GHC/Core/InstEnv.hs - compiler/GHC/Hs/Decls.hs - compiler/GHC/Hs/ImpExp.hs - compiler/GHC/Hs/Instances.hs - compiler/GHC/Iface/Syntax.hs - compiler/GHC/Iface/Warnings.hs - compiler/GHC/Parser.y - compiler/GHC/Parser/Errors/Ppr.hs - compiler/GHC/Parser/Errors/Types.hs - compiler/GHC/Parser/PostProcess.hs - compiler/GHC/Rename/Module.hs - compiler/GHC/Rename/Names.hs - compiler/GHC/Rename/Utils.hs - compiler/GHC/StgToCmm/Bind.hs - compiler/GHC/StgToCmm/Utils.hs - compiler/GHC/Tc/Deriv.hs - compiler/GHC/Tc/Deriv/Utils.hs - compiler/GHC/Tc/Errors/Ppr.hs - compiler/GHC/Tc/Errors/Types.hs - compiler/GHC/Tc/Gen/Export.hs - compiler/GHC/Tc/Types/Origin.hs - compiler/GHC/Tc/Utils/Instantiate.hs - compiler/GHC/Types/DefaultEnv.hs - compiler/GHC/Types/Error/Codes.hs - compiler/GHC/Types/Name/Reader.hs - compiler/GHC/Types/Unique/FM.hs - compiler/GHC/Types/Unique/Set.hs - compiler/GHC/Unit/Module/Warnings.hs - compiler/Language/Haskell/Syntax/Decls.hs - compiler/Language/Haskell/Syntax/Extension.hs - compiler/ghc.cabal.in - docs/users_guide/phases.rst - libraries/ghc-internal/src/GHC/Internal/Functor/ZipList.hs - rts/Apply.cmm - rts/Compact.cmm - rts/ContinuationOps.cmm - rts/Exception.cmm - rts/Jumps.h - rts/PrimOps.cmm - rts/RtsMessages.c - rts/StgMiscClosures.cmm - rts/StgStartup.cmm - rts/include/Stg.h - rts/include/rts/Messages.h - rts/prim/mulIntMayOflo.c - testsuite/tests/diagnostic-codes/codes.stdout - testsuite/tests/haddock/should_compile_flag_haddock/T17544_kw.stderr - testsuite/tests/patsyn/should_fail/all.T - + testsuite/tests/patsyn/should_fail/import-syntax-no-ext.hs - + testsuite/tests/patsyn/should_fail/import-syntax-no-ext.stderr - + testsuite/tests/rename/should_compile/T25901_sub_e.hs - + testsuite/tests/rename/should_compile/T25901_sub_f.hs - + testsuite/tests/rename/should_compile/T25901_sub_f.stderr - + testsuite/tests/rename/should_compile/T25901_sub_g.hs - + testsuite/tests/rename/should_compile/T25901_sub_g.stderr - + testsuite/tests/rename/should_compile/T25901_sub_g_helper.hs - testsuite/tests/rename/should_compile/all.T - testsuite/tests/rename/should_fail/T23570b.stderr - + testsuite/tests/rename/should_fail/T25901_sub_a.hs - + testsuite/tests/rename/should_fail/T25901_sub_a.stderr - + testsuite/tests/rename/should_fail/T25901_sub_b.hs - + testsuite/tests/rename/should_fail/T25901_sub_b.stderr - + testsuite/tests/rename/should_fail/T25901_sub_c.hs - + testsuite/tests/rename/should_fail/T25901_sub_c.stderr - + testsuite/tests/rename/should_fail/T25901_sub_c_helper.hs - + testsuite/tests/rename/should_fail/T25901_sub_d.hs - + testsuite/tests/rename/should_fail/T25901_sub_d.stderr - + testsuite/tests/rename/should_fail/T25901_sub_d_helper.hs - + testsuite/tests/rename/should_fail/T25901_sub_w.hs - + testsuite/tests/rename/should_fail/T25901_sub_w.stderr - testsuite/tests/rename/should_fail/all.T - + testsuite/tests/simd/should_run/T26411.hs - + testsuite/tests/simd/should_run/T26411.stdout - + testsuite/tests/simd/should_run/T26411b.hs - + testsuite/tests/simd/should_run/T26411b.stdout - testsuite/tests/simd/should_run/all.T - testsuite/tests/simplStg/should_compile/all.T - testsuite/tests/warnings/should_compile/DodgyExports03.stderr - testsuite/tests/warnings/should_compile/DodgyImports.stderr - + testsuite/tests/warnings/should_compile/DodgyImports02.hs - + testsuite/tests/warnings/should_compile/DodgyImports02.stderr - + testsuite/tests/warnings/should_compile/DodgyImports03.hs - + testsuite/tests/warnings/should_compile/DodgyImports03.stderr - + testsuite/tests/warnings/should_compile/DodgyImports03_helper.hs - + testsuite/tests/warnings/should_compile/DodgyImports04.hs - + testsuite/tests/warnings/should_compile/DodgyImports04.stderr - testsuite/tests/warnings/should_compile/DodgyImports_hiding.stderr - testsuite/tests/warnings/should_compile/all.T - utils/check-exact/ExactPrint.hs - utils/genapply/Main.hs - utils/haddock/haddock-api/src/Haddock/Interface/Create.hs The diff was not included because it is too large. View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/d4fa9bfdf1619c07b7fa9f357bd445… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/d4fa9bfdf1619c07b7fa9f357bd445… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][wip/fix-26670] Correcting some suspicious bits of code, removing dead code
by recursion-ninja (＠recursion-ninja) 17 Dec '25

17 Dec '25

recursion-ninja pushed to branch wip/fix-26670 at Glasgow Haskell Compiler / GHC Commits: f0e98a45 by Recursion Ninja at 2025-12-17T14:43:49-05:00 Correcting some suspicious bits of code, removing dead code - - - - - 15 changed files: - compiler/GHC/Core/Opt/Simplify/Iteration.hs - compiler/GHC/Core/Opt/WorkWrap.hs - compiler/GHC/Hs/Binds.hs - compiler/GHC/Hs/Decls.hs - compiler/GHC/HsToCore/Binds.hs - compiler/GHC/Parser/PostProcess.hs - compiler/GHC/Rename/Bind.hs - compiler/GHC/ThToHs.hs - compiler/GHC/Types/Basic.hs - compiler/GHC/Types/Id/Info.hs - compiler/GHC/Types/InlinePragma.hs - compiler/GHC/Utils/Binary.hs - compiler/GHC/Utils/Outputable.hs - compiler/Language/Haskell/Syntax/Binds.hs - compiler/Language/Haskell/Syntax/Binds/InlinePragma.hs Changes: ===================================== compiler/GHC/Core/Opt/Simplify/Iteration.hs ===================================== @@ -657,8 +657,8 @@ tryCastWorkerWrapper env _ _ bndr rhs -- All other bindings mkCastWrapperInlinePrag :: forall p. IsPass p => InlinePragma (GhcPass p) -> InlinePragma (GhcPass p) -- See Note [Cast worker/wrapper] -mkCastWrapperInlinePrag (InlinePragma { inl_src = inTag, inl_inline = fn_inl, inl_act = fn_act, inl_rule = rule_info }) - = InlinePragma { inl_src = outTag +mkCastWrapperInlinePrag (InlinePragma { inl_ext = inTag, inl_inline = fn_inl, inl_act = fn_act, inl_rule = rule_info }) + = InlinePragma { inl_ext = outTag , inl_inline = fn_inl -- See Note [Worker/wrapper for INLINABLE functions] , inl_act = wrap_act -- See Note [Wrapper activation] , inl_rule = rule_info } -- in GHC.Core.Opt.WorkWrap ===================================== compiler/GHC/Core/Opt/WorkWrap.hs ===================================== @@ -834,7 +834,7 @@ mkWWBindPair ww_opts fn_id fn_info fn_args fn_body work_uniq div _ -> inl_act wrap_prag srcTxt = SourceText $ fsLit "{-# INLINE" - work_prag = InlinePragma { inl_src = InlinePragmaGhcTag srcTxt arity + work_prag = InlinePragma { inl_ext = InlinePragmaGhcTag srcTxt arity , inl_inline = fn_inline_spec , inl_act = work_act , inl_rule = FunLike } @@ -901,7 +901,7 @@ mkStrWrapperInlinePrag :: InlinePragma (GhcPass p) -> [CoreRule] -> Arity -> Inl mkStrWrapperInlinePrag (InlinePragma { inl_inline = fn_inl , inl_act = fn_act , inl_rule = rule_info }) rules arity - = InlinePragma { inl_src = InlinePragmaGhcTag srcTxt arity + = InlinePragma { inl_ext = InlinePragmaGhcTag srcTxt arity , inl_inline = fn_inl -- See Note [Worker/wrapper for INLINABLE functions] ===================================== compiler/GHC/Hs/Binds.hs ===================================== @@ -819,26 +819,20 @@ ppr_sig (ClassOpSig _ is_deflt vars ty) | otherwise = pprVarSig (map unLoc vars) (ppr ty) ppr_sig (FixSig _ fix_sig) = ppr fix_sig -ppr_sig (SpecSig _ var ty inl@(InlinePragma { inl_src = src, inl_inline = spec })) +ppr_sig (SpecSig _ var ty inl@(InlinePragma { inl_inline = spec })) = pragSrcBrackets srcTxt pragmaSrc $ pprSpec (unLoc var) (interpp'SP ty) inl - where - srcTxt = case ghcPass @p of - GhcPs -> src - GhcRn -> inl_ghcrn_src src - GhcTc -> inl_ghcrn_src src - pragmaSrc = case spec of - NoUserInlinePrag -> "{-# " ++ extractSpecPragName srcTxt - _ -> "{-# " ++ extractSpecPragName srcTxt ++ "_INLINE" - -ppr_sig (SpecSigE _ bndrs spec_e inl@(InlinePragma { inl_src = src, inl_inline = spec })) + where + srcTxt = inlinePragmaSource inl + pragmaSrc = case spec of + NoUserInlinePrag -> "{-# " ++ extractSpecPragName srcTxt + _ -> "{-# " ++ extractSpecPragName srcTxt ++ "_INLINE" + +ppr_sig (SpecSigE _ bndrs spec_e inl@(InlinePragma { inl_inline = spec })) = pragSrcBrackets srcTxt pragmaSrc $ pp_inl <+> hang (ppr bndrs) 2 (pprLExpr spec_e) where - srcTxt = case ghcPass @p of - GhcPs -> src - GhcRn -> inl_ghcrn_src src - GhcTc -> inl_ghcrn_src src + srcTxt = inlinePragmaSource inl -- SPECIALISE or SPECIALISE_INLINE pragmaSrc = case spec of NoUserInlinePrag -> "{-# " ++ extractSpecPragName srcTxt @@ -849,13 +843,8 @@ ppr_sig (SpecSigE _ bndrs spec_e inl@(InlinePragma { inl_src = src, inl_inline = ppr_sig (InlineSig _ var inl) = ppr_pfx <+> pprInline inl <+> pprPrefixOcc (unLoc var) <+> text "#-}" - where - srcTxt = case ghcPass @p of - GhcPs -> inl_src inl - GhcRn -> inl_ghcrn_src $ inl_src inl - GhcTc -> inl_ghcrn_src $ inl_src inl - - ppr_pfx = case srcTxt of + where + ppr_pfx = case inlinePragmaSource inl of SourceText src -> ftext src NoSourceText -> text "{-#" <+> inlinePragmaName (inl_inline inl) ===================================== compiler/GHC/Hs/Decls.hs ===================================== @@ -157,13 +157,6 @@ type instance XDocD (GhcPass _) = NoExtField type instance XRoleAnnotD (GhcPass _) = NoExtField type instance XXHsDecl (GhcPass _) = DataConCantHappen -{- -type instance XInlinePragma GhcPs = SourceText -type instance XInlinePragma GhcRn = (SourceText, Arity) -type instance XInlinePragma GhcTc = (SourceText, Arity) -type instance XXInlinePragma (GhcPass _) = DataConCantHappen --} - -- | Partition a list of HsDecls into function/pattern bindings, signatures, -- type family declarations, type family instances, and documentation comments. -- ===================================== compiler/GHC/HsToCore/Binds.hs ===================================== @@ -457,19 +457,14 @@ makeCorePair dflags gbl_id is_default_method dict_arity rhs simpl_opts = initSimpleOpts dflags InlinePragma (InlinePragmaGhcTag _ arity) inl_spec _ _ = idInlinePragma gbl_id inlinable_unf = mkInlinableUnfolding simpl_opts StableUserSrc rhs - inline_pair - | arity > 0 - -- Add an Unfolding for an INLINE (but not for NOINLINE) - -- And eta-expand the RHS; see Note [Eta-expanding INLINE things] - , let real_arity = dict_arity + arity - -- NB: The arity passed to mkInlineUnfoldingWithArity - -- must take account of the dictionaries - = ( gbl_id `setIdUnfolding` mkInlineUnfoldingWithArity simpl_opts StableUserSrc real_arity rhs - , etaExpand real_arity rhs) - - | otherwise - = pprTrace "makeCorePair: arity missing" (ppr gbl_id) $ - (gbl_id `setIdUnfolding` mkInlineUnfoldingNoArity simpl_opts StableUserSrc rhs, rhs) + inline_pair = + -- Add an Unfolding for an INLINE (but not for NOINLINE) + -- And eta-expand the RHS; see Note [Eta-expanding INLINE things] + let real_arity = dict_arity + arity + -- NB: The arity passed to mkInlineUnfoldingWithArity + -- must take account of the dictionaries + in ( gbl_id `setIdUnfolding` mkInlineUnfoldingWithArity simpl_opts StableUserSrc real_arity rhs + , etaExpand real_arity rhs) dictArity :: [Var] -> Arity -- Don't count coercion variables in arity @@ -1022,7 +1017,7 @@ dsSpec_help poly_nm poly_id poly_rhs spec_inl orig_bndrs ds_call fn_unf = realIdUnfolding poly_id spec_unf = specUnfolding simpl_opts spec_bndrs mk_spec_body rule_lhs_args fn_unf spec_info = vanillaIdInfo - `setInlinePragInfo` specFunInlinePrag poly_id (unsetInlinePragmaArity id_inl) (unsetInlinePragmaArity spec_inl) + `setInlinePragInfo` specFunInlinePrag poly_id id_inl spec_inl `setUnfoldingInfo` spec_unf spec_id = mkLocalVar (idDetails poly_id) spec_name ManyTy spec_ty spec_info -- Specialised binding is toplevel, hence Many. @@ -1192,17 +1187,19 @@ getCastedVar (Var v) = Just (v, MRefl) getCastedVar (Cast (Var v) co) = Just (v, MCo co) getCastedVar _ = Nothing -specFunInlinePrag :: Id -> InlinePragma GhcPs - -> InlinePragma GhcPs -> InlinePragma GhcPs +specFunInlinePrag :: Id -> InlinePragma GhcTc + -> InlinePragma GhcTc -> InlinePragma GhcTc -- See Note [Activation pragmas for SPECIALISE] specFunInlinePrag poly_id id_inl spec_inl | not (isDefaultInlinePragma spec_inl) = spec_inl | isGlobalId poly_id -- See Note [Specialising imported functions] -- in OccurAnal - , isStrongLoopBreaker (idOccInfo poly_id) = neverInlinePragma + , isStrongLoopBreaker (idOccInfo poly_id) = neverInlinePragma `setInlinePragmaArity` arity | otherwise = id_inl -- Get the INLINE pragma from SPECIALISE declaration, or, -- failing that, from the original Id + where + arity = arityInfo $ idInfo poly_id dsWarnOrphanRule :: CoreRule -> DsM () dsWarnOrphanRule rule ===================================== compiler/GHC/Parser/PostProcess.hs ===================================== @@ -3045,7 +3045,7 @@ mkInlinePragma :: SourceText -> (InlineSpec, RuleMatchInfo) -> Maybe Activation -- The (Maybe Activation) is because the user can omit -- the activation spec (and usually does) mkInlinePragma src (inl, match_info) mb_act - = InlinePragma { inl_src = src -- See Note [Pragma source text] in "GHC.Types.SourceText" + = InlinePragma { inl_ext = src -- See Note [Pragma source text] in "GHC.Types.SourceText" , inl_inline = inl , inl_act = act , inl_rule = match_info } @@ -3060,7 +3060,7 @@ mkInlinePragma src (inl, match_info) mb_act mkOpaquePragma :: SourceText -> InlinePragma GhcPs mkOpaquePragma src - = InlinePragma { inl_src = src + = InlinePragma { inl_ext = src , inl_inline = Opaque -- By marking the OPAQUE pragma NeverActive we stop -- (constructor) specialisation on OPAQUE things. ===================================== compiler/GHC/Rename/Bind.hs ===================================== @@ -1103,7 +1103,7 @@ renameSig ctxt sig@(SpecSig _ v tys inl) TopSigCtxt {} -> lookupLocatedOccRn WL_TermVariable v _ -> lookupSigOccRn ctxt sig v ; (new_ty, fvs) <- foldM do_one ([],emptyFVs) tys - ; return (SpecSig noAnn new_v new_ty (inl `setInlinePragmaArity` 0), fvs) } + ; return (SpecSig noAnn new_v new_ty (inl `setInlinePragmaArity` 0), fvs) } -- TODO: setting arity to 0 is likely wrong where do_one (tys,fvs) ty = do { (new_ty, fvs_ty) <- rnHsSigType (SpecialiseSigCtx v) TypeLevel ty ===================================== compiler/GHC/ThToHs.hs ===================================== @@ -892,7 +892,7 @@ cvtPragmaD (InlineP nm inline rm phases) ; let src TH.NoInline = fsLit "{-# NOINLINE" src TH.Inline = fsLit "{-# INLINE" src TH.Inlinable = fsLit "{-# INLINABLE" - ; let ip = InlinePragma { inl_src = toSrcTxt inline + ; let ip = InlinePragma { inl_ext = toSrcTxt inline , inl_inline = cvtInline inline , inl_rule = cvtRuleMatch rm , inl_act = cvtPhases phases dflt } @@ -902,7 +902,7 @@ cvtPragmaD (InlineP nm inline rm phases) cvtPragmaD (OpaqueP nm) = do { nm' <- vNameN nm - ; let ip = InlinePragma { inl_src = srcTxt + ; let ip = InlinePragma { inl_ext = srcTxt , inl_inline = Opaque , inl_rule = Hs.FunLike , inl_act = NeverActive } @@ -1017,7 +1017,7 @@ cvtInlinePhases inline phases = SourceText $ fsLit "{-# SPECIALISE") where toSrcTxt a = SourceText $ src a - in InlinePragma { inl_src = srcText + in InlinePragma { inl_ext = srcText , inl_inline = inline' , inl_rule = Hs.FunLike , inl_act = cvtPhases phases dflt } ===================================== compiler/GHC/Types/Basic.hs ===================================== @@ -1338,12 +1338,12 @@ dfunInlinePragma = defaultInlinePragma { inl_act = AlwaysActive , inl_rule = ConLike } setInlinePragmaArity :: InlinePragma GhcPs -> Arity -> InlinePragma GhcTc -setInlinePragmaArity prag@(InlinePragma { inl_src = srcTxt }) arity = - prag { inl_src = InlinePragmaGhcTag srcTxt arity } +setInlinePragmaArity prag@(InlinePragma { inl_ext = srcTxt }) arity = + prag { inl_ext = InlinePragmaGhcTag srcTxt arity } inlinePragmaSource :: forall p. IsPass p => InlinePragma (GhcPass p) -> SourceText -inlinePragmaSource (InlinePragma { inl_src = src }) = srcTxt +inlinePragmaSource (InlinePragma { inl_ext = src }) = srcTxt where srcTxt = case ghcPass @p of GhcPs -> src ===================================== compiler/GHC/Types/Id/Info.hs ===================================== @@ -557,7 +557,7 @@ setRuleInfo info sp = sp `seq` info { ruleInfo = sp } --setInlinePragInfo :: IdInfo -> InlinePragma GhcTc -> IdInfo --setInlinePragInfo info pr = pr `seq` info { inlinePragInfo = pr } setInlinePragInfo :: forall p. IsPass p => IdInfo -> InlinePragma (GhcPass p) -> IdInfo -setInlinePragInfo info pr@(InlinePragma { inl_src = src }) = pr `seq` info { inlinePragInfo = pr { inl_src = tag } } +setInlinePragInfo info pr@(InlinePragma { inl_ext = src }) = pr `seq` info { inlinePragInfo = pr { inl_ext = tag } } where tag :: InlinePragmaGhcTag tag = case ghcPass @p of ===================================== compiler/GHC/Types/InlinePragma.hs ===================================== @@ -59,6 +59,12 @@ module GHC.Types.InlinePragma -- ** Extensible record type for GhcRn & GhcTc , InlinePragmaGhcTag(..) + -- ** InlineSpec + -- *** Data-type + , InlineSpec(..) + -- *** Queries + , noUserInlineSpec + -- ** RuleMatchInfo -- *** Data-type , RuleMatchInfo(..) @@ -66,12 +72,6 @@ module GHC.Types.InlinePragma , isConLike , isFunLike - -- ** InlineSpec - -- *** Data-type - , InlineSpec(..) - -- *** Queries - , noUserInlineSpec - -- * Phase Activation -- ** Activation -- *** Data-type @@ -133,7 +133,7 @@ type instance XXInlinePragma (GhcPass _) = DataConCantHappen defaultInlinePragma, alwaysInlinePragma, neverInlinePragma, dfunInlinePragma :: InlinePragma GhcPs -defaultInlinePragma = InlinePragma { inl_src = SourceText $ fsLit "{-# INLINE" +defaultInlinePragma = InlinePragma { inl_ext = SourceText $ fsLit "{-# INLINE" , inl_act = AlwaysActive , inl_rule = FunLike , inl_inline = NoUserInlinePrag } @@ -161,26 +161,25 @@ isDefaultInlinePragma (InlinePragma { inl_act = activation setInlinePragmaArity :: forall p q. (IsPass p, XInlinePragma (GhcPass q) ~ InlinePragmaGhcTag) => InlinePragma (GhcPass p) -> Arity -> InlinePragma (GhcPass q) setInlinePragmaArity prag arity = - prag { inl_src = InlinePragmaGhcTag (inlinePragmaSource prag) arity } + prag { inl_ext = InlinePragmaGhcTag (inlinePragmaSource prag) arity } unsetInlinePragmaArity :: forall p. IsPass p => InlinePragma (GhcPass p) -> InlinePragma GhcPs unsetInlinePragmaArity prag = - prag { inl_src = inlinePragmaSource prag } + prag { inl_ext = inlinePragmaSource prag } inlinePragmaSource :: forall p. IsPass p => InlinePragma (GhcPass p) -> SourceText -inlinePragmaSource (InlinePragma { inl_src = src }) = srcTxt +inlinePragmaSource (InlinePragma { inl_ext = src }) = srcTxt where srcTxt = case ghcPass @p of GhcPs -> src GhcRn -> inl_ghcrn_src src GhcTc -> inl_ghcrn_src src --- TODO: Should we use coerce here? promoteInlinePragmaRn :: InlinePragma GhcRn -> InlinePragma GhcTc -promoteInlinePragmaRn prag@(InlinePragma { inl_src = src }) = prag { inl_src = src } +promoteInlinePragmaRn prag@(InlinePragma { inl_ext = src }) = prag { inl_ext = src } demoteInlinePragmaRn :: InlinePragma GhcTc -> InlinePragma GhcRn -demoteInlinePragmaRn prag@(InlinePragma { inl_src = src }) = prag { inl_src = src } +demoteInlinePragmaRn prag@(InlinePragma { inl_ext = src }) = prag { inl_ext = src } inlinePragmaSpec :: InlinePragma p -> InlineSpec inlinePragmaSpec = inl_inline @@ -192,7 +191,7 @@ inlinePragmaRuleMatchInfo :: InlinePragma (GhcPass p) -> RuleMatchInfo inlinePragmaRuleMatchInfo (InlinePragma { inl_rule = info }) = info setInlinePragmaTag :: InlinePragma (GhcPass p) -> XInlinePragma (GhcPass q) -> InlinePragma (GhcPass q) -setInlinePragmaTag prag tag = prag { inl_src = tag } +setInlinePragmaTag prag tag = prag { inl_ext = tag } setInlinePragmaActivation :: InlinePragma (GhcPass p) -> Activation -> InlinePragma (GhcPass p) setInlinePragmaActivation prag activation = prag { inl_act = activation } ===================================== compiler/GHC/Utils/Binary.hs ===================================== @@ -2087,14 +2087,6 @@ instance Binary Activation where _ -> do ab <- get bh return (ActiveAfter ab) -instance Binary RuleMatchInfo where - put_ bh FunLike = putByte bh 0 - put_ bh ConLike = putByte bh 1 - get bh = do - h <- getByte bh - if h == 1 then return ConLike - else return FunLike - instance Binary InlineSpec where put_ bh = putByte bh . \case NoUserInlinePrag -> 0 @@ -2110,3 +2102,11 @@ instance Binary InlineSpec where 2 -> Inlinable 3 -> NoInline _ -> Opaque + +instance Binary RuleMatchInfo where + put_ bh FunLike = putByte bh 0 + put_ bh ConLike = putByte bh 1 + get bh = do + h <- getByte bh + if h == 1 then return ConLike + else return FunLike ===================================== compiler/GHC/Utils/Outputable.hs ===================================== @@ -2049,10 +2049,6 @@ instance Outputable Activation where ppr (ActiveAfter n) = brackets (int n) ppr FinalActive = text "[final]" -instance Outputable RuleMatchInfo where - ppr ConLike = text "CONLIKE" - ppr FunLike = text "FUNLIKE" - instance Outputable InlineSpec where ppr Inline = text "INLINE" ppr NoInline = text "NOINLINE" @@ -2060,5 +2056,9 @@ instance Outputable InlineSpec where ppr Opaque = text "OPAQUE" ppr NoUserInlinePrag = empty +instance Outputable RuleMatchInfo where + ppr ConLike = text "CONLIKE" + ppr FunLike = text "FUNLIKE" + instance Outputable (InlinePragma (GhcPass p)) where ppr = pprInline ===================================== compiler/Language/Haskell/Syntax/Binds.hs ===================================== @@ -802,7 +802,7 @@ no harm. data InlinePragma pass -- Note [InlinePragma] = InlinePragma - { inl_src :: (XInlinePragma pass) -- See Note [Pragma source text] + { inl_ext :: (XInlinePragma pass) -- See Note [Pragma source text] , inl_inline :: InlineSpec -- See Note [inl_inline and inl_act] , inl_act :: Activation -- Says during which phases inlining is allowed -- See Note [inl_inline and inl_act] @@ -1021,7 +1021,7 @@ inlinePragmaRuleMatchInfo :: InlinePragma p -> RuleMatchInfo inlinePragmaRuleMatchInfo (InlinePragma { inl_rule = info }) = info setInlinePragmaTag :: InlinePragma p -> XInlinePragma q -> InlinePragma q -setInlinePragmaTag prag tag = prag { inl_src = tag } +setInlinePragmaTag prag tag = prag { inl_ext = tag } setInlinePragmaActivation :: InlinePragma p -> Activation -> InlinePragma p setInlinePragmaActivation prag activation = prag { inl_act = activation } ===================================== compiler/Language/Haskell/Syntax/Binds/InlinePragma.hs ===================================== @@ -25,6 +25,12 @@ module Language.Haskell.Syntax.Binds.InlinePragma , isNoInlinePragma , isOpaquePragma + -- ** InlineSpec + -- *** Data-type + , InlineSpec(..) + -- *** Queries + , noUserInlineSpec + -- ** RuleMatchInfo -- *** Data-type , RuleMatchInfo(..) @@ -32,12 +38,6 @@ module Language.Haskell.Syntax.Binds.InlinePragma , isConLike , isFunLike - -- ** InlineSpec - -- *** Data-type - , InlineSpec(..) - -- *** Queries - , noUserInlineSpec - -- * Phase Activation -- ** Activation -- *** Data-type @@ -68,7 +68,7 @@ import Prelude -- (Eq, Int, Show, ($), seq) data InlinePragma pass -- Note [InlinePragma] = InlinePragma - { inl_src :: (XInlinePragma pass) -- See Note [Pragma source text] + { inl_ext :: (XInlinePragma pass) -- See Note [Pragma source text] , inl_inline :: InlineSpec -- See Note [inl_inline and inl_act] , inl_act :: Activation -- Says during which phases inlining is allowed -- See Note [inl_inline and inl_act] View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/f0e98a453f10634acc0400bad3eca41… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/f0e98a453f10634acc0400bad3eca41… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][wip/foundation-improve-coverage] testsuite: improve coverage of foundation test
by Cheng Shao (＠TerrorJack) 17 Dec '25

17 Dec '25

Cheng Shao pushed to branch wip/foundation-improve-coverage at Glasgow Haskell Compiler / GHC Commits: facda723 by Cheng Shao at 2025-12-17T20:33:03+01:00 testsuite: improve coverage of foundation test This patch refactors the `foundation` test a bit to improve coverage: - Instead of using a hard-coded seed, a random seed is now taken from the command line, and printed upon test failure. This improves test coverage over many future CI runs, and shall a failure occur, the seed is available in the CI log for local reproduction. - The iterations count is bumped to 1000 instead of 100, similar to the bump in `test-primops`. Runtime timeout is bumped 2x just to be safe. - Improve `newLCGGen` by using non-atomic loads/stores on a `MutableByteArray#` for storing mutable `Word64`, this test doesn't use parallelism in the first place - Fixed a few compiler warnings and removed redundant pragmas and imports Co-authored-by: Codex <codex(a)openai.com> - - - - - 3 changed files: - testsuite/tests/numeric/should_run/all.T - testsuite/tests/numeric/should_run/foundation.hs - testsuite/tests/numeric/should_run/foundation.stdout Changes: ===================================== testsuite/tests/numeric/should_run/all.T ===================================== @@ -3,6 +3,8 @@ # extra run flags # expected process return value, if not zero +import random + test('arith001', normal, compile_and_run, ['']) test('arith002', normal, compile_and_run, ['']) test('arith003', normal, compile_and_run, ['']) @@ -82,7 +84,7 @@ test('IntegerToFloat', normal, compile_and_run, ['']) test('T20291', normal, compile_and_run, ['']) test('T22282', normal, compile_and_run, ['']) test('T22671', js_fragile(24259), compile_and_run, ['']) -test('foundation', [when(js_arch(), run_timeout_multiplier(2)), js_fragile(24259), extra_ways(['optasm','ghci','ghci-opt'])], compile_and_run, ['-package transformers -fno-break-points']) +test('foundation', [run_timeout_multiplier(2), js_fragile(24259), extra_ways(['optasm','ghci','ghci-opt']), extra_run_opts(str(random.getrandbits(64)))], compile_and_run, ['-fno-break-points']) test('T24066', normal, compile_and_run, ['']) test('div01', normal, compile_and_run, ['']) test('T24245', normal, compile_and_run, ['']) ===================================== testsuite/tests/numeric/should_run/foundation.hs ===================================== @@ -10,9 +10,7 @@ compare the result of the primop wrappers with the results of interpretation. -} -{-# LANGUAGE FlexibleContexts #-} {-# LANGUAGE OverloadedStrings #-} -{-# LANGUAGE ScopedTypeVariables #-} {-# LANGUAGE TypeAbstractions #-} {-# LANGUAGE TypeFamilies #-} {-# LANGUAGE DerivingStrategies #-} @@ -25,28 +23,23 @@ module Main ( main ) where +import Data.Array.Byte import Data.Bits (Bits((.&.), bit), FiniteBits, finiteBitSize) import Data.Word import Data.Int import GHC.Natural import Data.Typeable -import Data.Proxy import GHC.Int import GHC.Word -import GHC.Word import Data.Function import GHC.Prim import Control.Monad.Reader -import System.IO -import Foreign.Marshal.Alloc -import Foreign.Storable -import Foreign.Ptr import Data.List (intercalate) -import Data.IORef +import System.Environment (getArgs) +import Text.Read (readMaybe) import Unsafe.Coerce import GHC.Types import Data.Char -import Data.Semigroup import System.Exit import qualified GHC.Internal.PrimopWrappers as Wrapper @@ -194,11 +187,16 @@ newtype LCGGen = LCGGen { randomWord64 :: IO Word64 } data LCGParams = LCGParams { seed :: Word64, a :: Word64, c :: Word64, m :: Word64 } newLCGGen :: LCGParams -> IO LCGGen -newLCGGen LCGParams{..} = do - var <- newIORef (fromIntegral seed) - return $ LCGGen $ do - atomicModifyIORef' var (\old_v -> let new_val = (old_v * a + c) `mod` m in (new_val, new_val)) - +newLCGGen LCGParams {seed = W64# seed#, ..} = do + MutableByteArray mba# <- IO $ \s0 -> case newByteArray# 8# s0 of + (# s1, mba# #) -> case writeWord64Array# mba# 0# seed# s1 of + s2 -> (# s2, MutableByteArray mba# #) + pure $ LCGGen $ IO $ \s0 -> case readWord64Array# mba# 0# s0 of + (# s1, old_val# #) -> + let old_val = W64# old_val# + !new_val@(W64# new_val#) = (old_val * a + c) `mod` m + in case writeWord64Array# mba# 0# new_val# s1 of + s2 -> (# s2, new_val #) runPropertyCheck (PropertyBinaryOp res desc s1 s2) = if res then return Success @@ -211,7 +209,7 @@ runPropertyCheck (PropertyAnd a1 a2) = (<>) <$> runPropertyCheck a1 <*> runPrope runProperty :: Property -> ReaderT RunS IO Result runProperty (Prop p) = do - let iterations = 100 + let iterations = 1000 :: Int loop iterations iterations where loop iterations 0 = do @@ -257,14 +255,15 @@ runTestInternal (Property name p) = do nest label $ runProperty (property p) -runTests :: Test -> IO () -runTests t = do +runTests :: Word64 -> Test -> IO () +runTests seed t = do -- These params are the same ones as glibc uses. - h <- newLCGGen (LCGParams { seed = 1238123213, m = 2^31, a = 1103515245, c = 12345 }) + h <- newLCGGen (LCGParams { seed, m = 2 ^ (31 :: Int), a = 1103515245, c = 12345 }) res <- runReaderT (runTestInternal t) (RunS 0 h []) case res of Success -> return () Failure tests -> do + putStrLn $ "Seed: " ++ show seed putStrLn $ "These tests failed: \n" ++ intercalate " \n" (map (showStack 0 . reverse) tests) exitFailure @@ -455,7 +454,19 @@ instance TestPrimop LowerBitsAreDefined where twoNonZero :: (a -> a -> b) -> a -> NonZero a -> b twoNonZero f x (NonZero y) = f x y -main = runTests (Group "ALL" [testNumberRefs, testPrimops]) +getSeedFromArgs :: IO Word64 +getSeedFromArgs = do + args <- getArgs + case args of + [arg] -> case readMaybe arg of + Just seed -> pure seed + Nothing -> die $ "Invalid seed (expected Word64): " ++ show arg + _ -> die "Usage: foundation <seed>" + +main :: IO () +main = do + seed <- getSeedFromArgs + runTests seed (Group "ALL" [testNumberRefs, testPrimops]) -- Test an interpreted primop vs a compiled primop testPrimops = Group "primop" ===================================== testsuite/tests/numeric/should_run/foundation.stdout ===================================== @@ -3,1048 +3,1048 @@ Group ALL Group Int Group Integral Running FromIntegral(Integer(a)) == a - Passed 100 iterations + Passed 1000 iterations Group Property Running Eq - Passed 100 iterations + Passed 1000 iterations Running Show - Passed 100 iterations + Passed 1000 iterations Running Ord - Passed 100 iterations + Passed 1000 iterations Running < - Passed 100 iterations + Passed 1000 iterations Group Additive Running a + azero == a - Passed 100 iterations + Passed 1000 iterations Running azero + a == a - Passed 100 iterations + Passed 1000 iterations Running a + b == b + a - Passed 100 iterations + Passed 1000 iterations Group Multiplicative Running a * 1 == a - Passed 100 iterations + Passed 1000 iterations Running 1 * a == a - Passed 100 iterations + Passed 1000 iterations Running multiplication commutative - Passed 100 iterations + Passed 1000 iterations Running a * b == Integer(a) * Integer(b) - Passed 100 iterations + Passed 1000 iterations Group Divisible Running (x `div` y) * y + (x `mod` y) == x - Passed 100 iterations + Passed 1000 iterations Group Precedence Running + and - (1) - Passed 100 iterations + Passed 1000 iterations Running + and - (2) - Passed 100 iterations + Passed 1000 iterations Running + and * (1) - Passed 100 iterations + Passed 1000 iterations Running + and * (2) - Passed 100 iterations + Passed 1000 iterations Running - and * (1) - Passed 100 iterations + Passed 1000 iterations Running - and * (2) - Passed 100 iterations + Passed 1000 iterations Running * and ^ (1) - Passed 100 iterations + Passed 1000 iterations Running * and ^ (2) - Passed 100 iterations + Passed 1000 iterations Group Int8 Group Integral Running FromIntegral(Integer(a)) == a - Passed 100 iterations + Passed 1000 iterations Group Property Running Eq - Passed 100 iterations + Passed 1000 iterations Running Show - Passed 100 iterations + Passed 1000 iterations Running Ord - Passed 100 iterations + Passed 1000 iterations Running < - Passed 100 iterations + Passed 1000 iterations Group Additive Running a + azero == a - Passed 100 iterations + Passed 1000 iterations Running azero + a == a - Passed 100 iterations + Passed 1000 iterations Running a + b == b + a - Passed 100 iterations + Passed 1000 iterations Group Multiplicative Running a * 1 == a - Passed 100 iterations + Passed 1000 iterations Running 1 * a == a - Passed 100 iterations + Passed 1000 iterations Running multiplication commutative - Passed 100 iterations + Passed 1000 iterations Running a * b == Integer(a) * Integer(b) - Passed 100 iterations + Passed 1000 iterations Group Divisible Running (x `div` y) * y + (x `mod` y) == x - Passed 100 iterations + Passed 1000 iterations Group Precedence Running + and - (1) - Passed 100 iterations + Passed 1000 iterations Running + and - (2) - Passed 100 iterations + Passed 1000 iterations Running + and * (1) - Passed 100 iterations + Passed 1000 iterations Running + and * (2) - Passed 100 iterations + Passed 1000 iterations Running - and * (1) - Passed 100 iterations + Passed 1000 iterations Running - and * (2) - Passed 100 iterations + Passed 1000 iterations Running * and ^ (1) - Passed 100 iterations + Passed 1000 iterations Running * and ^ (2) - Passed 100 iterations + Passed 1000 iterations Group Int16 Group Integral Running FromIntegral(Integer(a)) == a - Passed 100 iterations + Passed 1000 iterations Group Property Running Eq - Passed 100 iterations + Passed 1000 iterations Running Show - Passed 100 iterations + Passed 1000 iterations Running Ord - Passed 100 iterations + Passed 1000 iterations Running < - Passed 100 iterations + Passed 1000 iterations Group Additive Running a + azero == a - Passed 100 iterations + Passed 1000 iterations Running azero + a == a - Passed 100 iterations + Passed 1000 iterations Running a + b == b + a - Passed 100 iterations + Passed 1000 iterations Group Multiplicative Running a * 1 == a - Passed 100 iterations + Passed 1000 iterations Running 1 * a == a - Passed 100 iterations + Passed 1000 iterations Running multiplication commutative - Passed 100 iterations + Passed 1000 iterations Running a * b == Integer(a) * Integer(b) - Passed 100 iterations + Passed 1000 iterations Group Divisible Running (x `div` y) * y + (x `mod` y) == x - Passed 100 iterations + Passed 1000 iterations Group Precedence Running + and - (1) - Passed 100 iterations + Passed 1000 iterations Running + and - (2) - Passed 100 iterations + Passed 1000 iterations Running + and * (1) - Passed 100 iterations + Passed 1000 iterations Running + and * (2) - Passed 100 iterations + Passed 1000 iterations Running - and * (1) - Passed 100 iterations + Passed 1000 iterations Running - and * (2) - Passed 100 iterations + Passed 1000 iterations Running * and ^ (1) - Passed 100 iterations + Passed 1000 iterations Running * and ^ (2) - Passed 100 iterations + Passed 1000 iterations Group Int32 Group Integral Running FromIntegral(Integer(a)) == a - Passed 100 iterations + Passed 1000 iterations Group Property Running Eq - Passed 100 iterations + Passed 1000 iterations Running Show - Passed 100 iterations + Passed 1000 iterations Running Ord - Passed 100 iterations + Passed 1000 iterations Running < - Passed 100 iterations + Passed 1000 iterations Group Additive Running a + azero == a - Passed 100 iterations + Passed 1000 iterations Running azero + a == a - Passed 100 iterations + Passed 1000 iterations Running a + b == b + a - Passed 100 iterations + Passed 1000 iterations Group Multiplicative Running a * 1 == a - Passed 100 iterations + Passed 1000 iterations Running 1 * a == a - Passed 100 iterations + Passed 1000 iterations Running multiplication commutative - Passed 100 iterations + Passed 1000 iterations Running a * b == Integer(a) * Integer(b) - Passed 100 iterations + Passed 1000 iterations Group Divisible Running (x `div` y) * y + (x `mod` y) == x - Passed 100 iterations + Passed 1000 iterations Group Precedence Running + and - (1) - Passed 100 iterations + Passed 1000 iterations Running + and - (2) - Passed 100 iterations + Passed 1000 iterations Running + and * (1) - Passed 100 iterations + Passed 1000 iterations Running + and * (2) - Passed 100 iterations + Passed 1000 iterations Running - and * (1) - Passed 100 iterations + Passed 1000 iterations Running - and * (2) - Passed 100 iterations + Passed 1000 iterations Running * and ^ (1) - Passed 100 iterations + Passed 1000 iterations Running * and ^ (2) - Passed 100 iterations + Passed 1000 iterations Group Int64 Group Integral Running FromIntegral(Integer(a)) == a - Passed 100 iterations + Passed 1000 iterations Group Property Running Eq - Passed 100 iterations + Passed 1000 iterations Running Show - Passed 100 iterations + Passed 1000 iterations Running Ord - Passed 100 iterations + Passed 1000 iterations Running < - Passed 100 iterations + Passed 1000 iterations Group Additive Running a + azero == a - Passed 100 iterations + Passed 1000 iterations Running azero + a == a - Passed 100 iterations + Passed 1000 iterations Running a + b == b + a - Passed 100 iterations + Passed 1000 iterations Group Multiplicative Running a * 1 == a - Passed 100 iterations + Passed 1000 iterations Running 1 * a == a - Passed 100 iterations + Passed 1000 iterations Running multiplication commutative - Passed 100 iterations + Passed 1000 iterations Running a * b == Integer(a) * Integer(b) - Passed 100 iterations + Passed 1000 iterations Group Divisible Running (x `div` y) * y + (x `mod` y) == x - Passed 100 iterations + Passed 1000 iterations Group Precedence Running + and - (1) - Passed 100 iterations + Passed 1000 iterations Running + and - (2) - Passed 100 iterations + Passed 1000 iterations Running + and * (1) - Passed 100 iterations + Passed 1000 iterations Running + and * (2) - Passed 100 iterations + Passed 1000 iterations Running - and * (1) - Passed 100 iterations + Passed 1000 iterations Running - and * (2) - Passed 100 iterations + Passed 1000 iterations Running * and ^ (1) - Passed 100 iterations + Passed 1000 iterations Running * and ^ (2) - Passed 100 iterations + Passed 1000 iterations Group Integer Group Integral Running FromIntegral(Integer(a)) == a - Passed 100 iterations + Passed 1000 iterations Group Property Running Eq - Passed 100 iterations + Passed 1000 iterations Running Show - Passed 100 iterations + Passed 1000 iterations Running Ord - Passed 100 iterations + Passed 1000 iterations Running < - Passed 100 iterations + Passed 1000 iterations Group Additive Running a + azero == a - Passed 100 iterations + Passed 1000 iterations Running azero + a == a - Passed 100 iterations + Passed 1000 iterations Running a + b == b + a - Passed 100 iterations + Passed 1000 iterations Group Multiplicative Running a * 1 == a - Passed 100 iterations + Passed 1000 iterations Running 1 * a == a - Passed 100 iterations + Passed 1000 iterations Running multiplication commutative - Passed 100 iterations + Passed 1000 iterations Running a * b == Integer(a) * Integer(b) - Passed 100 iterations + Passed 1000 iterations Group Divisible Running (x `div` y) * y + (x `mod` y) == x - Passed 100 iterations + Passed 1000 iterations Group Precedence Running + and - (1) - Passed 100 iterations + Passed 1000 iterations Running + and - (2) - Passed 100 iterations + Passed 1000 iterations Running + and * (1) - Passed 100 iterations + Passed 1000 iterations Running + and * (2) - Passed 100 iterations + Passed 1000 iterations Running - and * (1) - Passed 100 iterations + Passed 1000 iterations Running - and * (2) - Passed 100 iterations + Passed 1000 iterations Running * and ^ (1) - Passed 100 iterations + Passed 1000 iterations Running * and ^ (2) - Passed 100 iterations + Passed 1000 iterations Group Word Group Integral Running FromIntegral(Integer(a)) == a - Passed 100 iterations + Passed 1000 iterations Group Property Running Eq - Passed 100 iterations + Passed 1000 iterations Running Show - Passed 100 iterations + Passed 1000 iterations Running Ord - Passed 100 iterations + Passed 1000 iterations Running < - Passed 100 iterations + Passed 1000 iterations Group Additive Running a + azero == a - Passed 100 iterations + Passed 1000 iterations Running azero + a == a - Passed 100 iterations + Passed 1000 iterations Running a + b == b + a - Passed 100 iterations + Passed 1000 iterations Group Multiplicative Running a * 1 == a - Passed 100 iterations + Passed 1000 iterations Running 1 * a == a - Passed 100 iterations + Passed 1000 iterations Running multiplication commutative - Passed 100 iterations + Passed 1000 iterations Running a * b == Integer(a) * Integer(b) - Passed 100 iterations + Passed 1000 iterations Group Divisible Running (x `div` y) * y + (x `mod` y) == x - Passed 100 iterations + Passed 1000 iterations Group Precedence Running + and - (1) - Passed 100 iterations + Passed 1000 iterations Running + and - (2) - Passed 100 iterations + Passed 1000 iterations Running + and * (1) - Passed 100 iterations + Passed 1000 iterations Running + and * (2) - Passed 100 iterations + Passed 1000 iterations Running - and * (1) - Passed 100 iterations + Passed 1000 iterations Running - and * (2) - Passed 100 iterations + Passed 1000 iterations Running * and ^ (1) - Passed 100 iterations + Passed 1000 iterations Running * and ^ (2) - Passed 100 iterations + Passed 1000 iterations Group Word8 Group Integral Running FromIntegral(Integer(a)) == a - Passed 100 iterations + Passed 1000 iterations Group Property Running Eq - Passed 100 iterations + Passed 1000 iterations Running Show - Passed 100 iterations + Passed 1000 iterations Running Ord - Passed 100 iterations + Passed 1000 iterations Running < - Passed 100 iterations + Passed 1000 iterations Group Additive Running a + azero == a - Passed 100 iterations + Passed 1000 iterations Running azero + a == a - Passed 100 iterations + Passed 1000 iterations Running a + b == b + a - Passed 100 iterations + Passed 1000 iterations Group Multiplicative Running a * 1 == a - Passed 100 iterations + Passed 1000 iterations Running 1 * a == a - Passed 100 iterations + Passed 1000 iterations Running multiplication commutative - Passed 100 iterations + Passed 1000 iterations Running a * b == Integer(a) * Integer(b) - Passed 100 iterations + Passed 1000 iterations Group Divisible Running (x `div` y) * y + (x `mod` y) == x - Passed 100 iterations + Passed 1000 iterations Group Precedence Running + and - (1) - Passed 100 iterations + Passed 1000 iterations Running + and - (2) - Passed 100 iterations + Passed 1000 iterations Running + and * (1) - Passed 100 iterations + Passed 1000 iterations Running + and * (2) - Passed 100 iterations + Passed 1000 iterations Running - and * (1) - Passed 100 iterations + Passed 1000 iterations Running - and * (2) - Passed 100 iterations + Passed 1000 iterations Running * and ^ (1) - Passed 100 iterations + Passed 1000 iterations Running * and ^ (2) - Passed 100 iterations + Passed 1000 iterations Group Word16 Group Integral Running FromIntegral(Integer(a)) == a - Passed 100 iterations + Passed 1000 iterations Group Property Running Eq - Passed 100 iterations + Passed 1000 iterations Running Show - Passed 100 iterations + Passed 1000 iterations Running Ord - Passed 100 iterations + Passed 1000 iterations Running < - Passed 100 iterations + Passed 1000 iterations Group Additive Running a + azero == a - Passed 100 iterations + Passed 1000 iterations Running azero + a == a - Passed 100 iterations + Passed 1000 iterations Running a + b == b + a - Passed 100 iterations + Passed 1000 iterations Group Multiplicative Running a * 1 == a - Passed 100 iterations + Passed 1000 iterations Running 1 * a == a - Passed 100 iterations + Passed 1000 iterations Running multiplication commutative - Passed 100 iterations + Passed 1000 iterations Running a * b == Integer(a) * Integer(b) - Passed 100 iterations + Passed 1000 iterations Group Divisible Running (x `div` y) * y + (x `mod` y) == x - Passed 100 iterations + Passed 1000 iterations Group Precedence Running + and - (1) - Passed 100 iterations + Passed 1000 iterations Running + and - (2) - Passed 100 iterations + Passed 1000 iterations Running + and * (1) - Passed 100 iterations + Passed 1000 iterations Running + and * (2) - Passed 100 iterations + Passed 1000 iterations Running - and * (1) - Passed 100 iterations + Passed 1000 iterations Running - and * (2) - Passed 100 iterations + Passed 1000 iterations Running * and ^ (1) - Passed 100 iterations + Passed 1000 iterations Running * and ^ (2) - Passed 100 iterations + Passed 1000 iterations Group Word32 Group Integral Running FromIntegral(Integer(a)) == a - Passed 100 iterations + Passed 1000 iterations Group Property Running Eq - Passed 100 iterations + Passed 1000 iterations Running Show - Passed 100 iterations + Passed 1000 iterations Running Ord - Passed 100 iterations + Passed 1000 iterations Running < - Passed 100 iterations + Passed 1000 iterations Group Additive Running a + azero == a - Passed 100 iterations + Passed 1000 iterations Running azero + a == a - Passed 100 iterations + Passed 1000 iterations Running a + b == b + a - Passed 100 iterations + Passed 1000 iterations Group Multiplicative Running a * 1 == a - Passed 100 iterations + Passed 1000 iterations Running 1 * a == a - Passed 100 iterations + Passed 1000 iterations Running multiplication commutative - Passed 100 iterations + Passed 1000 iterations Running a * b == Integer(a) * Integer(b) - Passed 100 iterations + Passed 1000 iterations Group Divisible Running (x `div` y) * y + (x `mod` y) == x - Passed 100 iterations + Passed 1000 iterations Group Precedence Running + and - (1) - Passed 100 iterations + Passed 1000 iterations Running + and - (2) - Passed 100 iterations + Passed 1000 iterations Running + and * (1) - Passed 100 iterations + Passed 1000 iterations Running + and * (2) - Passed 100 iterations + Passed 1000 iterations Running - and * (1) - Passed 100 iterations + Passed 1000 iterations Running - and * (2) - Passed 100 iterations + Passed 1000 iterations Running * and ^ (1) - Passed 100 iterations + Passed 1000 iterations Running * and ^ (2) - Passed 100 iterations + Passed 1000 iterations Group Word64 Group Integral Running FromIntegral(Integer(a)) == a - Passed 100 iterations + Passed 1000 iterations Group Property Running Eq - Passed 100 iterations + Passed 1000 iterations Running Show - Passed 100 iterations + Passed 1000 iterations Running Ord - Passed 100 iterations + Passed 1000 iterations Running < - Passed 100 iterations + Passed 1000 iterations Group Additive Running a + azero == a - Passed 100 iterations + Passed 1000 iterations Running azero + a == a - Passed 100 iterations + Passed 1000 iterations Running a + b == b + a - Passed 100 iterations + Passed 1000 iterations Group Multiplicative Running a * 1 == a - Passed 100 iterations + Passed 1000 iterations Running 1 * a == a - Passed 100 iterations + Passed 1000 iterations Running multiplication commutative - Passed 100 iterations + Passed 1000 iterations Running a * b == Integer(a) * Integer(b) - Passed 100 iterations + Passed 1000 iterations Group Divisible Running (x `div` y) * y + (x `mod` y) == x - Passed 100 iterations + Passed 1000 iterations Group Precedence Running + and - (1) - Passed 100 iterations + Passed 1000 iterations Running + and - (2) - Passed 100 iterations + Passed 1000 iterations Running + and * (1) - Passed 100 iterations + Passed 1000 iterations Running + and * (2) - Passed 100 iterations + Passed 1000 iterations Running - and * (1) - Passed 100 iterations + Passed 1000 iterations Running - and * (2) - Passed 100 iterations + Passed 1000 iterations Running * and ^ (1) - Passed 100 iterations + Passed 1000 iterations Running * and ^ (2) - Passed 100 iterations + Passed 1000 iterations Group primop Running gtChar# - Passed 100 iterations + Passed 1000 iterations Running geChar# - Passed 100 iterations + Passed 1000 iterations Running eqChar# - Passed 100 iterations + Passed 1000 iterations Running neChar# - Passed 100 iterations + Passed 1000 iterations Running ltChar# - Passed 100 iterations + Passed 1000 iterations Running leChar# - Passed 100 iterations + Passed 1000 iterations Running ord# - Passed 100 iterations + Passed 1000 iterations Running int8ToInt# - Passed 100 iterations + Passed 1000 iterations Running intToInt8# - Passed 100 iterations + Passed 1000 iterations Running negateInt8# - Passed 100 iterations + Passed 1000 iterations Running plusInt8# - Passed 100 iterations + Passed 1000 iterations Running subInt8# - Passed 100 iterations + Passed 1000 iterations Running timesInt8# - Passed 100 iterations + Passed 1000 iterations Running quotInt8# - Passed 100 iterations + Passed 1000 iterations Running remInt8# - Passed 100 iterations + Passed 1000 iterations Running quotRemInt8# - Passed 100 iterations + Passed 1000 iterations Running uncheckedShiftLInt8# - Passed 100 iterations + Passed 1000 iterations Running uncheckedShiftRAInt8# - Passed 100 iterations + Passed 1000 iterations Running uncheckedShiftRLInt8# - Passed 100 iterations + Passed 1000 iterations Running int8ToWord8# - Passed 100 iterations + Passed 1000 iterations Running eqInt8# - Passed 100 iterations + Passed 1000 iterations Running geInt8# - Passed 100 iterations + Passed 1000 iterations Running gtInt8# - Passed 100 iterations + Passed 1000 iterations Running leInt8# - Passed 100 iterations + Passed 1000 iterations Running ltInt8# - Passed 100 iterations + Passed 1000 iterations Running neInt8# - Passed 100 iterations + Passed 1000 iterations Running word8ToWord# - Passed 100 iterations + Passed 1000 iterations Running wordToWord8# - Passed 100 iterations + Passed 1000 iterations Running plusWord8# - Passed 100 iterations + Passed 1000 iterations Running subWord8# - Passed 100 iterations + Passed 1000 iterations Running timesWord8# - Passed 100 iterations + Passed 1000 iterations Running quotWord8# - Passed 100 iterations + Passed 1000 iterations Running remWord8# - Passed 100 iterations + Passed 1000 iterations Running quotRemWord8# - Passed 100 iterations + Passed 1000 iterations Running andWord8# - Passed 100 iterations + Passed 1000 iterations Running orWord8# - Passed 100 iterations + Passed 1000 iterations Running xorWord8# - Passed 100 iterations + Passed 1000 iterations Running notWord8# - Passed 100 iterations + Passed 1000 iterations Running uncheckedShiftLWord8# - Passed 100 iterations + Passed 1000 iterations Running uncheckedShiftRLWord8# - Passed 100 iterations + Passed 1000 iterations Running word8ToInt8# - Passed 100 iterations + Passed 1000 iterations Running eqWord8# - Passed 100 iterations + Passed 1000 iterations Running geWord8# - Passed 100 iterations + Passed 1000 iterations Running gtWord8# - Passed 100 iterations + Passed 1000 iterations Running leWord8# - Passed 100 iterations + Passed 1000 iterations Running ltWord8# - Passed 100 iterations + Passed 1000 iterations Running neWord8# - Passed 100 iterations + Passed 1000 iterations Running int16ToInt# - Passed 100 iterations + Passed 1000 iterations Running intToInt16# - Passed 100 iterations + Passed 1000 iterations Running negateInt16# - Passed 100 iterations + Passed 1000 iterations Running plusInt16# - Passed 100 iterations + Passed 1000 iterations Running subInt16# - Passed 100 iterations + Passed 1000 iterations Running timesInt16# - Passed 100 iterations + Passed 1000 iterations Running quotInt16# - Passed 100 iterations + Passed 1000 iterations Running remInt16# - Passed 100 iterations + Passed 1000 iterations Running quotRemInt16# - Passed 100 iterations + Passed 1000 iterations Running uncheckedShiftLInt16# - Passed 100 iterations + Passed 1000 iterations Running uncheckedShiftRAInt16# - Passed 100 iterations + Passed 1000 iterations Running uncheckedShiftRLInt16# - Passed 100 iterations + Passed 1000 iterations Running int16ToWord16# - Passed 100 iterations + Passed 1000 iterations Running eqInt16# - Passed 100 iterations + Passed 1000 iterations Running geInt16# - Passed 100 iterations + Passed 1000 iterations Running gtInt16# - Passed 100 iterations + Passed 1000 iterations Running leInt16# - Passed 100 iterations + Passed 1000 iterations Running ltInt16# - Passed 100 iterations + Passed 1000 iterations Running neInt16# - Passed 100 iterations + Passed 1000 iterations Running word16ToWord# - Passed 100 iterations + Passed 1000 iterations Running wordToWord16# - Passed 100 iterations + Passed 1000 iterations Running plusWord16# - Passed 100 iterations + Passed 1000 iterations Running subWord16# - Passed 100 iterations + Passed 1000 iterations Running timesWord16# - Passed 100 iterations + Passed 1000 iterations Running quotWord16# - Passed 100 iterations + Passed 1000 iterations Running remWord16# - Passed 100 iterations + Passed 1000 iterations Running quotRemWord16# - Passed 100 iterations + Passed 1000 iterations Running andWord16# - Passed 100 iterations + Passed 1000 iterations Running orWord16# - Passed 100 iterations + Passed 1000 iterations Running xorWord16# - Passed 100 iterations + Passed 1000 iterations Running notWord16# - Passed 100 iterations + Passed 1000 iterations Running uncheckedShiftLWord16# - Passed 100 iterations + Passed 1000 iterations Running uncheckedShiftRLWord16# - Passed 100 iterations + Passed 1000 iterations Running word16ToInt16# - Passed 100 iterations + Passed 1000 iterations Running eqWord16# - Passed 100 iterations + Passed 1000 iterations Running geWord16# - Passed 100 iterations + Passed 1000 iterations Running gtWord16# - Passed 100 iterations + Passed 1000 iterations Running leWord16# - Passed 100 iterations + Passed 1000 iterations Running ltWord16# - Passed 100 iterations + Passed 1000 iterations Running neWord16# - Passed 100 iterations + Passed 1000 iterations Running int32ToInt# - Passed 100 iterations + Passed 1000 iterations Running intToInt32# - Passed 100 iterations + Passed 1000 iterations Running negateInt32# - Passed 100 iterations + Passed 1000 iterations Running plusInt32# - Passed 100 iterations + Passed 1000 iterations Running subInt32# - Passed 100 iterations + Passed 1000 iterations Running timesInt32# - Passed 100 iterations + Passed 1000 iterations Running quotInt32# - Passed 100 iterations + Passed 1000 iterations Running remInt32# - Passed 100 iterations + Passed 1000 iterations Running quotRemInt32# - Passed 100 iterations + Passed 1000 iterations Running uncheckedShiftLInt32# - Passed 100 iterations + Passed 1000 iterations Running uncheckedShiftRAInt32# - Passed 100 iterations + Passed 1000 iterations Running uncheckedShiftRLInt32# - Passed 100 iterations + Passed 1000 iterations Running int32ToWord32# - Passed 100 iterations + Passed 1000 iterations Running eqInt32# - Passed 100 iterations + Passed 1000 iterations Running geInt32# - Passed 100 iterations + Passed 1000 iterations Running gtInt32# - Passed 100 iterations + Passed 1000 iterations Running leInt32# - Passed 100 iterations + Passed 1000 iterations Running ltInt32# - Passed 100 iterations + Passed 1000 iterations Running neInt32# - Passed 100 iterations + Passed 1000 iterations Running word32ToWord# - Passed 100 iterations + Passed 1000 iterations Running wordToWord32# - Passed 100 iterations + Passed 1000 iterations Running plusWord32# - Passed 100 iterations + Passed 1000 iterations Running subWord32# - Passed 100 iterations + Passed 1000 iterations Running timesWord32# - Passed 100 iterations + Passed 1000 iterations Running quotWord32# - Passed 100 iterations + Passed 1000 iterations Running remWord32# - Passed 100 iterations + Passed 1000 iterations Running quotRemWord32# - Passed 100 iterations + Passed 1000 iterations Running andWord32# - Passed 100 iterations + Passed 1000 iterations Running orWord32# - Passed 100 iterations + Passed 1000 iterations Running xorWord32# - Passed 100 iterations + Passed 1000 iterations Running notWord32# - Passed 100 iterations + Passed 1000 iterations Running uncheckedShiftLWord32# - Passed 100 iterations + Passed 1000 iterations Running uncheckedShiftRLWord32# - Passed 100 iterations + Passed 1000 iterations Running word32ToInt32# - Passed 100 iterations + Passed 1000 iterations Running eqWord32# - Passed 100 iterations + Passed 1000 iterations Running geWord32# - Passed 100 iterations + Passed 1000 iterations Running gtWord32# - Passed 100 iterations + Passed 1000 iterations Running leWord32# - Passed 100 iterations + Passed 1000 iterations Running ltWord32# - Passed 100 iterations + Passed 1000 iterations Running neWord32# - Passed 100 iterations + Passed 1000 iterations Running int64ToInt# - Passed 100 iterations + Passed 1000 iterations Running intToInt64# - Passed 100 iterations + Passed 1000 iterations Running negateInt64# - Passed 100 iterations + Passed 1000 iterations Running plusInt64# - Passed 100 iterations + Passed 1000 iterations Running subInt64# - Passed 100 iterations + Passed 1000 iterations Running timesInt64# - Passed 100 iterations + Passed 1000 iterations Running quotInt64# - Passed 100 iterations + Passed 1000 iterations Running remInt64# - Passed 100 iterations + Passed 1000 iterations Running uncheckedIShiftL64# - Passed 100 iterations + Passed 1000 iterations Running uncheckedIShiftRA64# - Passed 100 iterations + Passed 1000 iterations Running uncheckedIShiftRL64# - Passed 100 iterations + Passed 1000 iterations Running int64ToWord64# - Passed 100 iterations + Passed 1000 iterations Running eqInt64# - Passed 100 iterations + Passed 1000 iterations Running geInt64# - Passed 100 iterations + Passed 1000 iterations Running gtInt64# - Passed 100 iterations + Passed 1000 iterations Running leInt64# - Passed 100 iterations + Passed 1000 iterations Running ltInt64# - Passed 100 iterations + Passed 1000 iterations Running neInt64# - Passed 100 iterations + Passed 1000 iterations Running word64ToWord# - Passed 100 iterations + Passed 1000 iterations Running wordToWord64# - Passed 100 iterations + Passed 1000 iterations Running plusWord64# - Passed 100 iterations + Passed 1000 iterations Running subWord64# - Passed 100 iterations + Passed 1000 iterations Running timesWord64# - Passed 100 iterations + Passed 1000 iterations Running quotWord64# - Passed 100 iterations + Passed 1000 iterations Running remWord64# - Passed 100 iterations + Passed 1000 iterations Running and64# - Passed 100 iterations + Passed 1000 iterations Running or64# - Passed 100 iterations + Passed 1000 iterations Running xor64# - Passed 100 iterations + Passed 1000 iterations Running not64# - Passed 100 iterations + Passed 1000 iterations Running uncheckedShiftL64# - Passed 100 iterations + Passed 1000 iterations Running uncheckedShiftRL64# - Passed 100 iterations + Passed 1000 iterations Running word64ToInt64# - Passed 100 iterations + Passed 1000 iterations Running eqWord64# - Passed 100 iterations + Passed 1000 iterations Running geWord64# - Passed 100 iterations + Passed 1000 iterations Running gtWord64# - Passed 100 iterations + Passed 1000 iterations Running leWord64# - Passed 100 iterations + Passed 1000 iterations Running ltWord64# - Passed 100 iterations + Passed 1000 iterations Running neWord64# - Passed 100 iterations + Passed 1000 iterations Running +# - Passed 100 iterations + Passed 1000 iterations Running -# - Passed 100 iterations + Passed 1000 iterations Running *# - Passed 100 iterations + Passed 1000 iterations Running timesInt2# - Passed 100 iterations + Passed 1000 iterations Running mulIntMayOflo# - Passed 100 iterations + Passed 1000 iterations Running quotInt# - Passed 100 iterations + Passed 1000 iterations Running remInt# - Passed 100 iterations + Passed 1000 iterations Running quotRemInt# - Passed 100 iterations + Passed 1000 iterations Running andI# - Passed 100 iterations + Passed 1000 iterations Running orI# - Passed 100 iterations + Passed 1000 iterations Running xorI# - Passed 100 iterations + Passed 1000 iterations Running notI# - Passed 100 iterations + Passed 1000 iterations Running negateInt# - Passed 100 iterations + Passed 1000 iterations Running addIntC# - Passed 100 iterations + Passed 1000 iterations Running subIntC# - Passed 100 iterations + Passed 1000 iterations Running ># - Passed 100 iterations + Passed 1000 iterations Running >=# - Passed 100 iterations + Passed 1000 iterations Running ==# - Passed 100 iterations + Passed 1000 iterations Running /=# - Passed 100 iterations + Passed 1000 iterations Running <# - Passed 100 iterations + Passed 1000 iterations Running <=# - Passed 100 iterations + Passed 1000 iterations Running chr# - Passed 100 iterations + Passed 1000 iterations Running int2Word# - Passed 100 iterations + Passed 1000 iterations Running uncheckedIShiftL# - Passed 100 iterations + Passed 1000 iterations Running uncheckedIShiftRA# - Passed 100 iterations + Passed 1000 iterations Running uncheckedIShiftRL# - Passed 100 iterations + Passed 1000 iterations Running plusWord# - Passed 100 iterations + Passed 1000 iterations Running addWordC# - Passed 100 iterations + Passed 1000 iterations Running subWordC# - Passed 100 iterations + Passed 1000 iterations Running plusWord2# - Passed 100 iterations + Passed 1000 iterations Running minusWord# - Passed 100 iterations + Passed 1000 iterations Running timesWord# - Passed 100 iterations + Passed 1000 iterations Running timesWord2# - Passed 100 iterations + Passed 1000 iterations Running quotWord# - Passed 100 iterations + Passed 1000 iterations Running remWord# - Passed 100 iterations + Passed 1000 iterations Running quotRemWord# - Passed 100 iterations + Passed 1000 iterations Running and# - Passed 100 iterations + Passed 1000 iterations Running or# - Passed 100 iterations + Passed 1000 iterations Running xor# - Passed 100 iterations + Passed 1000 iterations Running not# - Passed 100 iterations + Passed 1000 iterations Running uncheckedShiftL# - Passed 100 iterations + Passed 1000 iterations Running uncheckedShiftRL# - Passed 100 iterations + Passed 1000 iterations Running word2Int# - Passed 100 iterations + Passed 1000 iterations Running gtWord# - Passed 100 iterations + Passed 1000 iterations Running geWord# - Passed 100 iterations + Passed 1000 iterations Running eqWord# - Passed 100 iterations + Passed 1000 iterations Running neWord# - Passed 100 iterations + Passed 1000 iterations Running ltWord# - Passed 100 iterations + Passed 1000 iterations Running leWord# - Passed 100 iterations + Passed 1000 iterations Running popCnt8# - Passed 100 iterations + Passed 1000 iterations Running popCnt16# - Passed 100 iterations + Passed 1000 iterations Running popCnt32# - Passed 100 iterations + Passed 1000 iterations Running popCnt64# - Passed 100 iterations + Passed 1000 iterations Running popCnt# - Passed 100 iterations + Passed 1000 iterations Running pdep8# - Passed 100 iterations + Passed 1000 iterations Running pdep16# - Passed 100 iterations + Passed 1000 iterations Running pdep32# - Passed 100 iterations + Passed 1000 iterations Running pdep64# - Passed 100 iterations + Passed 1000 iterations Running pdep# - Passed 100 iterations + Passed 1000 iterations Running pext8# - Passed 100 iterations + Passed 1000 iterations Running pext16# - Passed 100 iterations + Passed 1000 iterations Running pext32# - Passed 100 iterations + Passed 1000 iterations Running pext64# - Passed 100 iterations + Passed 1000 iterations Running pext# - Passed 100 iterations + Passed 1000 iterations Running clz8# - Passed 100 iterations + Passed 1000 iterations Running clz16# - Passed 100 iterations + Passed 1000 iterations Running clz32# - Passed 100 iterations + Passed 1000 iterations Running clz64# - Passed 100 iterations + Passed 1000 iterations Running clz# - Passed 100 iterations + Passed 1000 iterations Running ctz8# - Passed 100 iterations + Passed 1000 iterations Running ctz16# - Passed 100 iterations + Passed 1000 iterations Running ctz32# - Passed 100 iterations + Passed 1000 iterations Running ctz64# - Passed 100 iterations + Passed 1000 iterations Running ctz# - Passed 100 iterations + Passed 1000 iterations Running byteSwap16# - Passed 100 iterations + Passed 1000 iterations Running byteSwap32# - Passed 100 iterations + Passed 1000 iterations Running byteSwap64# - Passed 100 iterations + Passed 1000 iterations Running byteSwap# - Passed 100 iterations + Passed 1000 iterations Running bitReverse8# - Passed 100 iterations + Passed 1000 iterations Running bitReverse16# - Passed 100 iterations + Passed 1000 iterations Running bitReverse32# - Passed 100 iterations + Passed 1000 iterations Running bitReverse64# - Passed 100 iterations + Passed 1000 iterations Running bitReverse# - Passed 100 iterations + Passed 1000 iterations Running narrow8Int# - Passed 100 iterations + Passed 1000 iterations Running narrow16Int# - Passed 100 iterations + Passed 1000 iterations Running narrow32Int# - Passed 100 iterations + Passed 1000 iterations Running narrow8Word# - Passed 100 iterations + Passed 1000 iterations Running narrow16Word# - Passed 100 iterations + Passed 1000 iterations Running narrow32Word# - Passed 100 iterations + Passed 1000 iterations View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/facda7233b59fcaa93e4626ee8efebd… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/facda7233b59fcaa93e4626ee8efebd… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][wip/foundation-improve-coverage] 8 commits: Bump exceptions submodule to 0.10.11
by Cheng Shao (＠TerrorJack) 17 Dec '25

17 Dec '25

Cheng Shao pushed to branch wip/foundation-improve-coverage at Glasgow Haskell Compiler / GHC Commits: 3b5aecb5 by Ben Gamari at 2025-12-13T23:43:10+01:00 Bump exceptions submodule to 0.10.11 - - - - - c32de3b0 by Johan Förberg at 2025-12-15T02:36:03-05:00 base: Define Semigroup and Monoid instances for lazy ST CLC proposal: https://github.com/haskell/core-libraries-committee/issues/374 Fixes #26581 - - - - - 4f8b660c by mangoiv at 2025-12-15T02:37:05-05:00 ci: do not require nightly cabal-reinstall job to succeed - - - - - 2c2a3ef3 by Cheng Shao at 2025-12-15T11:51:53-05:00 docs: drop obsolete warning about -fexternal-interpreter on windows This patch drops an obsolete warning about -fexternal-interpreter not supported on windows; it is supported since a long time ago, including the profiled way. - - - - - 68573aa5 by Marc Scholten at 2025-12-15T11:53:00-05:00 haddock: Drop Haddock.Backends.HaddockDB as it's unused - - - - - b230d549 by mangoiv at 2025-12-16T15:17:45-05:00 base: generalize delete{Firsts,}By When we delete{Firsts,}By we should not require the lists to be the same type. This is an especially useful generalisation in the case of deleteFirstsBy because we can skip an invocation of the map function. This change was discussed on the core-libraries-committee's bug tracker at https://github.com/haskell/core-libraries-committee/issues/372. - - - - - 6a2b43e3 by Cheng Shao at 2025-12-16T15:18:30-05:00 compiler: clean up redundant LANGUAGE pragmas This patch bumps `default-language` of `ghc`/`ghc-bin` from `GHC2021` to `GHC2024` (which is supported in ghc 9.10, current boot ghc lower version bound), and also cleans up redundant `LANGUAGE` pragmas (as well as `default-extensions`/`other-extensions`) that are already implied by `GHC2024`. Co-authored-by: Codex <codex(a)openai.com> - - - - - 05cb83fe by Cheng Shao at 2025-12-17T20:21:23+01:00 testsuite: improve coverage of foundation test This patch refactors the `foundation` test a bit to improve coverage: - Instead of using a hard-coded seed, a random seed is now taken from the command line, and printed upon test failure. This improves test coverage over many future CI runs, and shall a failure occur, the seed is available in the CI log for local reproduction. - The iterations count is bumped to 1000 instead of 100, similar to the bump in `test-primops`. Runtime timeout is bumped 2x just to be safe. - Improve `newLCGGen` by using non-atomic loads/stores on a `MutableByteArray#` for storing mutable `Word64`, this test doesn't use parallelism in the first place - Fixed a few compiler warnings and removed redundant pragmas and imports Co-authored-by: Codex <codex(a)openai.com> - - - - - 450 changed files: - .gitlab-ci.yml - compiler/GHC.hs - compiler/GHC/Builtin/PrimOps.hs - compiler/GHC/Builtin/PrimOps/Ids.hs - compiler/GHC/Builtin/Types/Literals.hs - compiler/GHC/ByteCode/Asm.hs - compiler/GHC/ByteCode/Breakpoints.hs - compiler/GHC/ByteCode/InfoTable.hs - compiler/GHC/ByteCode/Instr.hs - compiler/GHC/ByteCode/Linker.hs - compiler/GHC/ByteCode/Types.hs - compiler/GHC/Cmm.hs - compiler/GHC/Cmm/BlockId.hs - compiler/GHC/Cmm/CLabel.hs - compiler/GHC/Cmm/CommonBlockElim.hs - compiler/GHC/Cmm/Config.hs - compiler/GHC/Cmm/ContFlowOpt.hs - compiler/GHC/Cmm/Dataflow.hs - compiler/GHC/Cmm/Dataflow/Block.hs - compiler/GHC/Cmm/Dataflow/Graph.hs - compiler/GHC/Cmm/Dataflow/Label.hs - compiler/GHC/Cmm/DebugBlock.hs - compiler/GHC/Cmm/Dominators.hs - compiler/GHC/Cmm/Expr.hs - compiler/GHC/Cmm/Graph.hs - compiler/GHC/Cmm/Info/Build.hs - compiler/GHC/Cmm/LRegSet.hs - compiler/GHC/Cmm/LayoutStack.hs - compiler/GHC/Cmm/Lint.hs - compiler/GHC/Cmm/Liveness.hs - compiler/GHC/Cmm/MachOp.hs - compiler/GHC/Cmm/Node.hs - compiler/GHC/Cmm/Parser.y - compiler/GHC/Cmm/ProcPoint.hs - compiler/GHC/Cmm/Reducibility.hs - compiler/GHC/Cmm/Reg.hs - compiler/GHC/Cmm/Sink.hs - compiler/GHC/Cmm/Switch.hs - compiler/GHC/Cmm/Switch/Implement.hs - compiler/GHC/Cmm/ThreadSanitizer.hs - compiler/GHC/Cmm/UniqueRenamer.hs - compiler/GHC/Cmm/Utils.hs - compiler/GHC/CmmToAsm/BlockLayout.hs - compiler/GHC/CmmToAsm/CFG.hs - compiler/GHC/CmmToAsm/CPrim.hs - compiler/GHC/CmmToAsm/Dwarf/Types.hs - compiler/GHC/CmmToAsm/Format.hs - compiler/GHC/CmmToAsm/LA64/CodeGen.hs - compiler/GHC/CmmToAsm/Monad.hs - compiler/GHC/CmmToAsm/PPC/CodeGen.hs - compiler/GHC/CmmToAsm/PPC/Ppr.hs - compiler/GHC/CmmToAsm/RV64/CodeGen.hs - compiler/GHC/CmmToAsm/RV64/Ppr.hs - compiler/GHC/CmmToAsm/Reg/Graph.hs - compiler/GHC/CmmToAsm/Reg/Graph/SpillClean.hs - compiler/GHC/CmmToAsm/Reg/Graph/SpillCost.hs - compiler/GHC/CmmToAsm/Reg/Linear/State.hs - compiler/GHC/CmmToAsm/Reg/Linear/X86.hs - compiler/GHC/CmmToAsm/Reg/Linear/X86_64.hs - compiler/GHC/CmmToAsm/Wasm.hs - compiler/GHC/CmmToAsm/Wasm/Asm.hs - compiler/GHC/CmmToAsm/Wasm/FromCmm.hs - compiler/GHC/CmmToAsm/Wasm/Types.hs - compiler/GHC/CmmToAsm/X86/CodeGen.hs - compiler/GHC/CmmToAsm/X86/Instr.hs - compiler/GHC/CmmToAsm/X86/Ppr.hs - compiler/GHC/CmmToC.hs - compiler/GHC/CmmToLlvm/Base.hs - compiler/GHC/CmmToLlvm/CodeGen.hs - compiler/GHC/Core/Coercion.hs - compiler/GHC/Core/Coercion.hs-boot - compiler/GHC/Core/Coercion/Axiom.hs - compiler/GHC/Core/DataCon.hs - compiler/GHC/Core/FamInstEnv.hs - compiler/GHC/Core/InstEnv.hs - compiler/GHC/Core/LateCC/OverloadedCalls.hs - compiler/GHC/Core/LateCC/TopLevelBinds.hs - compiler/GHC/Core/Lint.hs - compiler/GHC/Core/Lint/Interactive.hs - 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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/numeric/should_run/all.T - testsuite/tests/numeric/should_run/foundation.hs - testsuite/tests/numeric/should_run/foundation.stdout - utils/haddock/haddock-api/haddock-api.cabal - − utils/haddock/haddock-api/src/Haddock/Backends/HaddockDB.hs The diff was not included because it is too large. View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/1a84164148aa0be7ba0dbe5c5ee099… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/1a84164148aa0be7ba0dbe5c5ee099… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc] Pushed new branch wip/cleanup-configure
by Cheng Shao (＠TerrorJack) 17 Dec '25

17 Dec '25

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

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[Git][ghc/ghc][wip/fix-26670] 17 commits: hadrian: add support for building with UndefinedBehaviorSanitizer
by recursion-ninja (＠recursion-ninja) 17 Dec '25

17 Dec '25

recursion-ninja pushed to branch wip/fix-26670 at Glasgow Haskell Compiler / GHC Commits: 96fce8d0 by Cheng Shao at 2025-12-12T01:17:51+01:00 hadrian: add support for building with UndefinedBehaviorSanitizer This patch adds a +ubsan flavour transformer to hadrian to build all stage1+ C/C++ code with UndefinedBehaviorSanitizer. This is particularly useful to catch potential undefined behavior in the RTS codebase. - - - - - f7a06d8c by Cheng Shao at 2025-12-12T01:17:51+01:00 ci: update alpine/fedora & add ubsan job This patch updates alpine image to 3.23, fedora image to 43, and adds a `x86_64-linux-fedora43-validate+debug_info+ubsan` job that's run in validate/nightly pipelines to catch undefined behavior in the RTS codebase. - - - - - 2ccd11ca by Cheng Shao at 2025-12-12T01:17:51+01:00 rts: fix zero-length VLA undefined behavior in interpretBCO This commit fixes a zero-length VLA undefined behavior in interpretBCO, caught by UBSan: ``` +rts/Interpreter.c:3133:19: runtime variable length array bound evaluates to non-positive value 0 ``` - - - - - 4156ed19 by Cheng Shao at 2025-12-12T01:17:51+01:00 rts: fix unaligned ReadSpB in interpretBCO This commit fixes unaligned ReadSpB in interpretBCO, caught by UBSan: ``` +rts/Interpreter.c:2174:64: runtime load of misaligned address 0x004202059dd1 for type 'StgWord', which requires 8 byte alignment ``` To perform proper unaligned read, we define StgUnalignedWord as a type alias of StgWord with aligned(1) attribute, and load StgUnalignedWord instead of StgWord in ReadSpB, so the C compiler is aware that we're not loading with natural alignment. - - - - - fef89fb9 by Cheng Shao at 2025-12-12T01:17:51+01:00 rts: fix signed integer overflow in subword arithmetic in interpretBCO This commit fixes signed integer overflow in subword arithmetic in interpretBCO, see added note for detailed explanation. - - - - - 3c001377 by Cheng Shao at 2025-12-13T05:03:15-05:00 ci: use treeless fetch for perf notes This patch improves the ci logic for fetching perf notes by using treeless fetch (https://github.blog/open-source/git/get-up-to-speed-with-partial-clone-and-…) to avoid downloading all blobs of the perf notes repo at once, and only fetch the actually required blobs on-demand when needed. This makes the initial `test-metrics.sh pull` operation much faster, and also more robust, since we are seeing an increasing rate of 504 errors in CI when fetching all perf notes at once, which is a major source of CI flakiness at this point. Co-authored-by: Codex <codex(a)openai.com> - - - - - 123a8d77 by Peter Trommler at 2025-12-13T05:03:57-05:00 Cmm: remove restriction in MachOp folding - - - - - 0b54b5fd by Andreas Klebinger at 2025-12-13T05:04:38-05:00 Remove explicit Typeable deriviations. - - - - - 08b13f7b by Cheng Shao at 2025-12-13T05:05:18-05:00 ci: set gc.auto=0 during setup stage This patch sets `gc.auto=0` during `setup` stage of CI, see added comment for detailed explanation. - - - - - 3b5aecb5 by Ben Gamari at 2025-12-13T23:43:10+01:00 Bump exceptions submodule to 0.10.11 - - - - - c32de3b0 by Johan Förberg at 2025-12-15T02:36:03-05:00 base: Define Semigroup and Monoid instances for lazy ST CLC proposal: https://github.com/haskell/core-libraries-committee/issues/374 Fixes #26581 - - - - - 4f8b660c by mangoiv at 2025-12-15T02:37:05-05:00 ci: do not require nightly cabal-reinstall job to succeed - - - - - 2c2a3ef3 by Cheng Shao at 2025-12-15T11:51:53-05:00 docs: drop obsolete warning about -fexternal-interpreter on windows This patch drops an obsolete warning about -fexternal-interpreter not supported on windows; it is supported since a long time ago, including the profiled way. - - - - - 68573aa5 by Marc Scholten at 2025-12-15T11:53:00-05:00 haddock: Drop Haddock.Backends.HaddockDB as it's unused - - - - - b230d549 by mangoiv at 2025-12-16T15:17:45-05:00 base: generalize delete{Firsts,}By When we delete{Firsts,}By we should not require the lists to be the same type. This is an especially useful generalisation in the case of deleteFirstsBy because we can skip an invocation of the map function. This change was discussed on the core-libraries-committee's bug tracker at https://github.com/haskell/core-libraries-committee/issues/372. - - - - - 6a2b43e3 by Cheng Shao at 2025-12-16T15:18:30-05:00 compiler: clean up redundant LANGUAGE pragmas This patch bumps `default-language` of `ghc`/`ghc-bin` from `GHC2021` to `GHC2024` (which is supported in ghc 9.10, current boot ghc lower version bound), and also cleans up redundant `LANGUAGE` pragmas (as well as `default-extensions`/`other-extensions`) that are already implied by `GHC2024`. Co-authored-by: Codex <codex(a)openai.com> - - - - - 98eea962 by Recursion Ninja at 2025-12-17T13:28:34-05:00 Decoupling Language.Haskell.Syntax.Binds from GHC.Types.Basic by transfering InlinePragma types between the modules. - - - - - 501 changed files: - .gitlab-ci.yml - .gitlab/ci.sh - .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 - .gitlab/test-metrics.sh - compiler/GHC.hs - compiler/GHC/Builtin/PrimOps.hs - compiler/GHC/Builtin/PrimOps/Ids.hs - compiler/GHC/Builtin/Types/Literals.hs - compiler/GHC/ByteCode/Asm.hs - compiler/GHC/ByteCode/Breakpoints.hs - compiler/GHC/ByteCode/InfoTable.hs - compiler/GHC/ByteCode/Instr.hs - compiler/GHC/ByteCode/Linker.hs - compiler/GHC/ByteCode/Types.hs - compiler/GHC/Cmm.hs - compiler/GHC/Cmm/BlockId.hs - compiler/GHC/Cmm/CLabel.hs - compiler/GHC/Cmm/CommonBlockElim.hs - compiler/GHC/Cmm/Config.hs - compiler/GHC/Cmm/ContFlowOpt.hs - compiler/GHC/Cmm/Dataflow.hs - compiler/GHC/Cmm/Dataflow/Block.hs - compiler/GHC/Cmm/Dataflow/Graph.hs - compiler/GHC/Cmm/Dataflow/Label.hs - compiler/GHC/Cmm/DebugBlock.hs - compiler/GHC/Cmm/Dominators.hs - compiler/GHC/Cmm/Expr.hs - compiler/GHC/Cmm/Graph.hs - compiler/GHC/Cmm/Info/Build.hs - compiler/GHC/Cmm/LRegSet.hs - compiler/GHC/Cmm/LayoutStack.hs - compiler/GHC/Cmm/Lint.hs - compiler/GHC/Cmm/Liveness.hs - compiler/GHC/Cmm/MachOp.hs - compiler/GHC/Cmm/Node.hs - compiler/GHC/Cmm/Opt.hs - compiler/GHC/Cmm/Parser.y - compiler/GHC/Cmm/ProcPoint.hs - compiler/GHC/Cmm/Reducibility.hs - compiler/GHC/Cmm/Reg.hs - compiler/GHC/Cmm/Sink.hs - compiler/GHC/Cmm/Switch.hs - compiler/GHC/Cmm/Switch/Implement.hs - compiler/GHC/Cmm/ThreadSanitizer.hs - compiler/GHC/Cmm/UniqueRenamer.hs - compiler/GHC/Cmm/Utils.hs - compiler/GHC/CmmToAsm/BlockLayout.hs - compiler/GHC/CmmToAsm/CFG.hs - compiler/GHC/CmmToAsm/CPrim.hs - compiler/GHC/CmmToAsm/Dwarf/Types.hs - compiler/GHC/CmmToAsm/Format.hs - compiler/GHC/CmmToAsm/LA64/CodeGen.hs - 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utils/haddock/haddock-api/haddock-api.cabal - − utils/haddock/haddock-api/src/Haddock/Backends/HaddockDB.hs The diff was not included because it is too large. View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/b57f032c0c205e4b6eed413dc84aa0… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/b57f032c0c205e4b6eed413dc84aa0… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc] Pushed new branch wip/remove-othersection
by Cheng Shao (＠TerrorJack) 17 Dec '25

17 Dec '25

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

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[Git][ghc/ghc] Pushed new branch wip/lazy-iface-decl-loading
by Matthew Pickering (＠mpickering) 17 Dec '25

17 Dec '25

Matthew Pickering pushed new branch wip/lazy-iface-decl-loading at Glasgow Haskell Compiler / GHC -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/tree/wip/lazy-iface-decl-loading You're receiving this email because of your account on gitlab.haskell.org.

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