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[Git][ghc/ghc][master] 2 commits: Improve pretty printer for HsExpr
by Marge Bot (＠marge-bot) 23 Sep '25

23 Sep '25

Marge Bot pushed to branch master at Glasgow Haskell Compiler / GHC Commits: e7df6cc0 by Simon Peyton Jones at 2025-09-23T14:34:39-04:00 Improve pretty printer for HsExpr Given a very deeply-nested application, it just kept printing deeper and deeper. This small change makes it cut off. Test is in #26330, but we also get a dramatic decrease in compile time for perf/compiler/InstanceMatching: InstanceMatching 4,086,884,584 1,181,767,232 -71.1% GOOD Why? Because before we got a GIGANTIC error message that took ages to pretty-print; now we get this much more civilised message (I have removed some whitespace.) Match.hs:1007:1: error: • No instance for ‘Show (F001 a)’ arising from a use of ‘showsPrec’ • In the second argument of ‘showString’, namely ‘(showsPrec 11 b1 (GHC.Internal.Show.showSpace (showsPrec 11 b2 (GHC.Internal.Show.showSpace (showsPrec 11 b3 (GHC.Internal.Show.showSpace (showsPrec 11 b4 (GHC.Internal.Show.showSpace (showsPrec 11 b5 (GHC.Internal.Show.showSpace (showsPrec 11 b6 (GHC.Internal.Show.showSpace (showsPrec ...)))))))))))))’ ----------------------- The main payload is * At the start of `pprExpr` * In the defn of `pprApp` A little bit of refactoring: * It turned out that we were setting the default cut-off depth to a fixed value in two places, so changing one didn't change the other. See defaultSDocDepth and defaultSDocCols * I refactored `pprDeeperList` a bit so I could understand it better. Because the depth calculation has changed, there are lots of small error message wibbles. Metric Decrease: InstanceMatching - - - - - 209f0158 by Simon Peyton Jones at 2025-09-23T14:34:39-04:00 Use Outputable.ellipsis rather than text "..." - - - - - 51 changed files: - compiler/GHC/Core/Opt/Simplify/Env.hs - compiler/GHC/Core/Ppr.hs - compiler/GHC/Driver/DynFlags.hs - compiler/GHC/Hs/Expr.hs - compiler/GHC/HsToCore/Errors/Ppr.hs - compiler/GHC/HsToCore/Pmc/Ppr.hs - compiler/GHC/HsToCore/Pmc/Types.hs - compiler/GHC/Iface/Syntax.hs - compiler/GHC/Llvm/Ppr.hs - compiler/GHC/Llvm/Types.hs - compiler/GHC/Runtime/Heap/Inspect.hs - compiler/GHC/Runtime/Loader.hs - compiler/GHC/Tc/Errors/Ppr.hs - compiler/GHC/Types/Hint/Ppr.hs - compiler/GHC/Utils/Outputable.hs - compiler/GHC/Utils/Ppr.hs - testsuite/tests/arrows/gadt/T17423.stderr - testsuite/tests/indexed-types/should_compile/PushedInAsGivens.stderr - testsuite/tests/indexed-types/should_fail/T26176.stderr - testsuite/tests/indexed-types/should_fail/T2693.stderr - testsuite/tests/indexed-types/should_fail/T4093b.stderr - testsuite/tests/indexed-types/should_fail/T8518.stderr - testsuite/tests/indexed-types/should_fail/T9662.stderr - testsuite/tests/linear/should_fail/Linear17.stderr - testsuite/tests/linear/should_fail/LinearLet7.stderr - testsuite/tests/parser/should_fail/RecordDotSyntaxFail10.stderr - testsuite/tests/parser/should_fail/RecordDotSyntaxFail11.stderr - testsuite/tests/parser/should_fail/RecordDotSyntaxFail13.stderr - testsuite/tests/parser/should_fail/RecordDotSyntaxFail8.stderr - testsuite/tests/partial-sigs/should_compile/T21719.stderr - testsuite/tests/polykinds/T13393.stderr - testsuite/tests/rep-poly/T12709.stderr - testsuite/tests/simplCore/should_compile/simpl017.stderr - testsuite/tests/th/T10945.stderr - testsuite/tests/th/TH_StaticPointers02.stderr - testsuite/tests/typecheck/should_compile/T11339.stderr - testsuite/tests/typecheck/should_fail/DoExpansion3.stderr - testsuite/tests/typecheck/should_fail/T12177.stderr - testsuite/tests/typecheck/should_fail/T22707.stderr - testsuite/tests/typecheck/should_fail/T24064.stderr - + testsuite/tests/typecheck/should_fail/T26330.hs - + testsuite/tests/typecheck/should_fail/T26330.stderr - testsuite/tests/typecheck/should_fail/T8142.stderr - testsuite/tests/typecheck/should_fail/T8603.stderr - testsuite/tests/typecheck/should_fail/all.T - testsuite/tests/typecheck/should_fail/tcfail128.stderr - testsuite/tests/typecheck/should_fail/tcfail153.stderr - testsuite/tests/typecheck/should_fail/tcfail168.stderr - testsuite/tests/typecheck/should_fail/tcfail177.stderr - testsuite/tests/typecheck/should_fail/tcfail185.stderr - testsuite/tests/typecheck/should_run/Typeable1.stderr The diff was not included because it is too large. View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/867c26755e8855c6df949e65df0c2a… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/867c26755e8855c6df949e65df0c2a… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][wip/romes/cleanup] cleanup: Delete historical artifact of COMPILING_WINDOWS_DLL
by Rodrigo Mesquita (＠alt-romes) 23 Sep '25

23 Sep '25

Rodrigo Mesquita pushed to branch wip/romes/cleanup at Glasgow Haskell Compiler / GHC Commits: 4d6fa0a8 by Rodrigo Mesquita at 2025-09-23T18:18:33+01:00 cleanup: Delete historical artifact of COMPILING_WINDOWS_DLL Namely, drop the obsolete - DLL_IMPORT_RTS - DLL_IMPORT_DATA_VAR - DLL_IMPORT_DATA_VARNAME - DLL_IMPORT_DATA_REF These macros were not doing anything and placed inconsistently Looking at the git logs reveal these macros were used to support dynamic libraries on Win32, a feature that was dropped in b8cfa8f741729ef123569fb321c4b2ab4a1a941c This allows us to get rid of the rts/DLL.h file too. - - - - - 13 changed files: - rts/CloneStack.h - rts/Prelude.h - rts/RtsSymbols.c - rts/include/Rts.h - rts/include/RtsAPI.h - rts/include/Stg.h - rts/include/rts/Flags.h - rts/include/rts/NonMoving.h - rts/include/rts/StableName.h - rts/include/rts/StablePtr.h - − rts/include/stg/DLL.h - rts/include/stg/MiscClosures.h - rts/rts.cabal Changes: ===================================== rts/CloneStack.h ===================================== @@ -8,8 +8,8 @@ #pragma once -extern StgClosure DLL_IMPORT_DATA_VARNAME(ghczminternal_GHCziInternalziStackziCloneStack_StackSnapshot_closure); -#define StackSnapshot_constructor_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziStackziCloneStack_StackSnapshot_closure) +extern StgClosure ghczminternal_GHCziInternalziStackziCloneStack_StackSnapshot_closure; +#define StackSnapshot_constructor_closure (&(ghczminternal_GHCziInternalziStackziCloneStack_StackSnapshot_closure)) StgStack* cloneStack(Capability* capability, const StgStack* stack); ===================================== rts/Prelude.h ===================================== @@ -15,8 +15,8 @@ #define PRELUDE_INFO(i) extern W_(i)[] #define PRELUDE_CLOSURE(i) extern W_(i)[] #else -#define PRELUDE_INFO(i) extern const StgInfoTable DLL_IMPORT_DATA_VARNAME(i) -#define PRELUDE_CLOSURE(i) extern StgClosure DLL_IMPORT_DATA_VARNAME(i) +#define PRELUDE_INFO(i) extern const StgInfoTable (i) +#define PRELUDE_CLOSURE(i) extern StgClosure (i) #endif /* See Note [Wired-in exceptions are not CAFfy] in GHC.Core.Make. */ @@ -87,58 +87,58 @@ PRELUDE_INFO(ghczminternal_GHCziInternalziWord_W32zh_con_info); PRELUDE_INFO(ghczminternal_GHCziInternalziWord_W64zh_con_info); PRELUDE_INFO(ghczminternal_GHCziInternalziStable_StablePtr_con_info); -#define Unit_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziTuple_Z0T_closure) -#define True_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziTypes_True_closure) -#define False_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziTypes_False_closure) -#define unpackCString_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziPack_unpackCString_closure) -#define runFinalizerBatch_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziWeakziFinalizze_runFinalizzerBatch_closure) +#define Unit_closure (&(ghczminternal_GHCziInternalziTuple_Z0T_closure)) +#define True_closure (&(ghczminternal_GHCziInternalziTypes_True_closure)) +#define False_closure (&(ghczminternal_GHCziInternalziTypes_False_closure)) +#define unpackCString_closure (&(ghczminternal_GHCziInternalziPack_unpackCString_closure)) +#define runFinalizerBatch_closure (&(ghczminternal_GHCziInternalziWeakziFinalizze_runFinalizzerBatch_closure)) #define mainIO_closure (&ZCMain_main_closure) -#define runSparks_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziConcziSync_runSparks_closure) -#define ensureIOManagerIsRunning_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziConcziIO_ensureIOManagerIsRunning_closure) -#define interruptIOManager_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziConcziIO_interruptIOManager_closure) -#define ioManagerCapabilitiesChanged_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziConcziIO_ioManagerCapabilitiesChanged_closure) -#define runHandlersPtr_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziConcziSignal_runHandlersPtr_closure) +#define runSparks_closure (&(ghczminternal_GHCziInternalziConcziSync_runSparks_closure)) +#define ensureIOManagerIsRunning_closure (&(ghczminternal_GHCziInternalziConcziIO_ensureIOManagerIsRunning_closure)) +#define interruptIOManager_closure (&(ghczminternal_GHCziInternalziConcziIO_interruptIOManager_closure)) +#define ioManagerCapabilitiesChanged_closure (&(ghczminternal_GHCziInternalziConcziIO_ioManagerCapabilitiesChanged_closure)) +#define runHandlersPtr_closure (&(ghczminternal_GHCziInternalziConcziSignal_runHandlersPtr_closure)) #if defined(mingw32_HOST_OS) -#define processRemoteCompletion_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziEventziWindows_processRemoteCompletion_closure) +#define processRemoteCompletion_closure (&(ghczminternal_GHCziInternalziEventziWindows_processRemoteCompletion_closure)) #endif -#define runAllocationLimitHandler_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziAllocationLimitHandler_runAllocationLimitHandler_closure) - -#define flushStdHandles_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziTopHandler_flushStdHandles_closure) -#define runMainIO_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziTopHandler_runMainIO_closure) - -#define stackOverflow_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziIOziException_stackOverflow_closure) -#define heapOverflow_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziIOziException_heapOverflow_closure) -#define allocationLimitExceeded_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziIOziException_allocationLimitExceeded_closure) -#define blockedIndefinitelyOnMVar_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziIOziException_blockedIndefinitelyOnMVar_closure) -#define blockedIndefinitelyOnSTM_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziIOziException_blockedIndefinitelyOnSTM_closure) -#define cannotCompactFunction_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziIOziException_cannotCompactFunction_closure) -#define cannotCompactPinned_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziIOziException_cannotCompactPinned_closure) -#define cannotCompactMutable_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziIOziException_cannotCompactMutable_closure) -#define nonTermination_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziControlziExceptionziBase_nonTermination_closure) -#define nestedAtomically_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziControlziExceptionziBase_nestedAtomically_closure) -#define absentSumFieldError_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziPrimziPanic_absentSumFieldError_closure) -#define underflowException_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziExceptionziType_underflowException_closure) -#define overflowException_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziExceptionziType_overflowException_closure) -#define divZeroException_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziExceptionziType_divZZeroException_closure) - -#define blockedOnBadFD_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziEventziThread_blockedOnBadFD_closure) - -#define Czh_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziTypes_Czh_con_info) -#define Izh_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziTypes_Izh_con_info) -#define Fzh_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziTypes_Fzh_con_info) -#define Dzh_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziTypes_Dzh_con_info) -#define Wzh_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziTypes_Wzh_con_info) -#define W8zh_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziWord_W8zh_con_info) -#define W16zh_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziWord_W16zh_con_info) -#define W32zh_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziWord_W32zh_con_info) -#define W64zh_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziWord_W64zh_con_info) -#define I8zh_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziInt_I8zh_con_info) -#define I16zh_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziInt_I16zh_con_info) -#define I32zh_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziInt_I32zh_con_info) -#define I64zh_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziInt_I64zh_con_info) -#define I64zh_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziInt_I64zh_con_info) -#define Ptr_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziPtr_Ptr_con_info) -#define FunPtr_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziPtr_FunPtr_con_info) -#define StablePtr_static_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziStable_StablePtr_static_info) -#define StablePtr_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziStable_StablePtr_con_info) +#define runAllocationLimitHandler_closure (&(ghczminternal_GHCziInternalziAllocationLimitHandler_runAllocationLimitHandler_closure)) + +#define flushStdHandles_closure (&(ghczminternal_GHCziInternalziTopHandler_flushStdHandles_closure)) +#define runMainIO_closure (&(ghczminternal_GHCziInternalziTopHandler_runMainIO_closure)) + +#define stackOverflow_closure (&(ghczminternal_GHCziInternalziIOziException_stackOverflow_closure)) +#define heapOverflow_closure (&(ghczminternal_GHCziInternalziIOziException_heapOverflow_closure)) +#define allocationLimitExceeded_closure (&(ghczminternal_GHCziInternalziIOziException_allocationLimitExceeded_closure)) +#define blockedIndefinitelyOnMVar_closure (&(ghczminternal_GHCziInternalziIOziException_blockedIndefinitelyOnMVar_closure)) +#define blockedIndefinitelyOnSTM_closure (&(ghczminternal_GHCziInternalziIOziException_blockedIndefinitelyOnSTM_closure)) +#define cannotCompactFunction_closure (&(ghczminternal_GHCziInternalziIOziException_cannotCompactFunction_closure)) +#define cannotCompactPinned_closure (&(ghczminternal_GHCziInternalziIOziException_cannotCompactPinned_closure)) +#define cannotCompactMutable_closure (&(ghczminternal_GHCziInternalziIOziException_cannotCompactMutable_closure)) +#define nonTermination_closure (&(ghczminternal_GHCziInternalziControlziExceptionziBase_nonTermination_closure)) +#define nestedAtomically_closure (&(ghczminternal_GHCziInternalziControlziExceptionziBase_nestedAtomically_closure)) +#define absentSumFieldError_closure (&(ghczminternal_GHCziInternalziPrimziPanic_absentSumFieldError_closure)) +#define underflowException_closure (&(ghczminternal_GHCziInternalziExceptionziType_underflowException_closure)) +#define overflowException_closure (&(ghczminternal_GHCziInternalziExceptionziType_overflowException_closure)) +#define divZeroException_closure (&(ghczminternal_GHCziInternalziExceptionziType_divZZeroException_closure)) + +#define blockedOnBadFD_closure (&(ghczminternal_GHCziInternalziEventziThread_blockedOnBadFD_closure)) + +#define Czh_con_info (&(ghczminternal_GHCziInternalziTypes_Czh_con_info)) +#define Izh_con_info (&(ghczminternal_GHCziInternalziTypes_Izh_con_info)) +#define Fzh_con_info (&(ghczminternal_GHCziInternalziTypes_Fzh_con_info)) +#define Dzh_con_info (&(ghczminternal_GHCziInternalziTypes_Dzh_con_info)) +#define Wzh_con_info (&(ghczminternal_GHCziInternalziTypes_Wzh_con_info)) +#define W8zh_con_info (&(ghczminternal_GHCziInternalziWord_W8zh_con_info)) +#define W16zh_con_info (&(ghczminternal_GHCziInternalziWord_W16zh_con_info)) +#define W32zh_con_info (&(ghczminternal_GHCziInternalziWord_W32zh_con_info)) +#define W64zh_con_info (&(ghczminternal_GHCziInternalziWord_W64zh_con_info)) +#define I8zh_con_info (&(ghczminternal_GHCziInternalziInt_I8zh_con_info)) +#define I16zh_con_info (&(ghczminternal_GHCziInternalziInt_I16zh_con_info)) +#define I32zh_con_info (&(ghczminternal_GHCziInternalziInt_I32zh_con_info)) +#define I64zh_con_info (&(ghczminternal_GHCziInternalziInt_I64zh_con_info)) +#define I64zh_con_info (&(ghczminternal_GHCziInternalziInt_I64zh_con_info)) +#define Ptr_con_info (&(ghczminternal_GHCziInternalziPtr_Ptr_con_info)) +#define FunPtr_con_info (&(ghczminternal_GHCziInternalziPtr_FunPtr_con_info)) +#define StablePtr_static_info (&(ghczminternal_GHCziInternalziStable_StablePtr_static_info)) +#define StablePtr_con_info (&(ghczminternal_GHCziInternalziStable_StablePtr_con_info)) ===================================== rts/RtsSymbols.c ===================================== @@ -1054,9 +1054,9 @@ RTS_ARM_OUTLINE_ATOMIC_SYMBOLS #define SymI_HasDataProto(vvv) { MAYBE_LEADING_UNDERSCORE_STR(#vvv), \ (void*)(&(vvv)), STRENGTH_NORMAL, SYM_TYPE_DATA }, #define SymE_HasProto(vvv) { MAYBE_LEADING_UNDERSCORE_STR(#vvv), \ - (void*)DLL_IMPORT_DATA_REF(vvv), STRENGTH_NORMAL, SYM_TYPE_CODE }, + (void*)(&(vvv)), STRENGTH_NORMAL, SYM_TYPE_CODE }, #define SymE_HasDataProto(vvv) { MAYBE_LEADING_UNDERSCORE_STR(#vvv), \ - (void*)DLL_IMPORT_DATA_REF(vvv), STRENGTH_NORMAL, SYM_TYPE_DATA }, + (void*)(&(vvv)), STRENGTH_NORMAL, SYM_TYPE_DATA }, #define SymI_NeedsProto(vvv) SymI_HasProto(vvv) #define SymI_NeedsDataProto(vvv) SymI_HasDataProto(vvv) ===================================== rts/include/Rts.h ===================================== @@ -281,9 +281,9 @@ void _warnFail(const char *filename, unsigned int linenum); #include "rts/LibdwPool.h" /* Misc stuff without a home */ -DLL_IMPORT_RTS extern char **prog_argv; /* so we can get at these from Haskell */ -DLL_IMPORT_RTS extern int prog_argc; -DLL_IMPORT_RTS extern char *prog_name; +extern char **prog_argv; /* so we can get at these from Haskell */ +extern int prog_argc; +extern char *prog_name; void reportStackOverflow(StgTSO* tso); void reportHeapOverflow(void); ===================================== rts/include/RtsAPI.h ===================================== @@ -587,8 +587,8 @@ void rts_done (void); extern StgClosure ghczminternal_GHCziInternalziTopHandler_runIO_closure; extern StgClosure ghczminternal_GHCziInternalziTopHandler_runNonIO_closure; -#define runIO_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziTopHandler_runIO_closure) -#define runNonIO_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziTopHandler_runNonIO_closure) +#define runIO_closure (&(ghczminternal_GHCziInternalziTopHandler_runIO_closure)) +#define runNonIO_closure (&(ghczminternal_GHCziInternalziTopHandler_runNonIO_closure)) /* ------------------------------------------------------------------------ */ ===================================== rts/include/Stg.h ===================================== @@ -352,7 +352,6 @@ external prototype return neither of these types to workaround #11395. Other Stg stuff... -------------------------------------------------------------------------- */ -#include "stg/DLL.h" #include "stg/MachRegsForHost.h" #include "stg/Regs.h" #include "stg/Ticky.h" ===================================== rts/include/rts/Flags.h ===================================== @@ -358,7 +358,7 @@ typedef struct _RTS_FLAGS { } RTS_FLAGS; #if defined(COMPILING_RTS_MAIN) -extern DLLIMPORT RTS_FLAGS RtsFlags; +extern RTS_FLAGS RtsFlags; #elif IN_STG_CODE /* Note [RtsFlags is a pointer in STG code] * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ===================================== rts/include/rts/NonMoving.h ===================================== @@ -19,10 +19,10 @@ struct StgThunk_; struct Capability_; /* This is called by the code generator */ -extern DLL_IMPORT_RTS +extern void updateRemembSetPushClosure_(StgRegTable *reg, struct StgClosure_ *p); -extern DLL_IMPORT_RTS +extern void updateRemembSetPushThunk_(StgRegTable *reg, struct StgThunk_ *p); // Forward declaration for unregisterised backend. @@ -31,7 +31,7 @@ EF_(stg_copyArray_barrier); // Note that RTS code should not condition on this directly by rather // use the IF_NONMOVING_WRITE_BARRIER_ENABLED macro to ensure that // the barrier is eliminated in the non-threaded RTS. -extern StgWord DLL_IMPORT_DATA_VAR(nonmoving_write_barrier_enabled); +extern StgWord nonmoving_write_barrier_enabled; // A similar macro is defined in rts/include/Cmm.h for C-- code. #if defined(THREADED_RTS) ===================================== rts/include/rts/StableName.h ===================================== @@ -29,4 +29,4 @@ typedef struct { // free } snEntry; -extern DLL_IMPORT_RTS snEntry *stable_name_table; +extern snEntry *stable_name_table; ===================================== rts/include/rts/StablePtr.h ===================================== @@ -26,7 +26,7 @@ typedef struct { // otherwise. } spEntry; -extern DLL_IMPORT_RTS spEntry *stable_ptr_table; +extern spEntry *stable_ptr_table; ATTR_ALWAYS_INLINE EXTERN_INLINE StgPtr deRefStablePtr(StgStablePtr sp) ===================================== rts/include/stg/DLL.h deleted ===================================== @@ -1,35 +0,0 @@ -/* ----------------------------------------------------------------------------- - * - * (c) The GHC Team, 1998-2009 - * - * Support for Windows DLLs. - * - * Do not #include this file directly: #include "Rts.h" instead. - * - * To understand the structure of the RTS headers, see the wiki: - * https://gitlab.haskell.org/ghc/ghc/wikis/commentary/source-tree/includes - * - * ---------------------------------------------------------------------------*/ - -#pragma once - -# define DLL_IMPORT_DATA_REF(x) (&(x)) -# define DLL_IMPORT_DATA_VARNAME(x) x -# define DLLIMPORT - -/* The view of the rts/include/ header files differ ever so - slightly depending on whether the RTS is being compiled - or not - so we're forced to distinguish between two. - [oh, you want details :) : Data symbols defined by the RTS - have to be accessed through an extra level of indirection - when compiling generated .hc code compared to when the RTS - sources are being processed. This is only the case when - using Win32 DLLs. ] -*/ -#if defined(COMPILING_RTS) -#define DLL_IMPORT_RTS -#define DLL_IMPORT_DATA_VAR(x) x -#else -#define DLL_IMPORT_RTS DLLIMPORT -#define DLL_IMPORT_DATA_VAR(x) x -#endif ===================================== rts/include/stg/MiscClosures.h ===================================== @@ -25,14 +25,14 @@ # define RTS_THUNK_INFO(i) extern const W_(i)[] # define RTS_INFO(i) extern const W_(i)[] # define RTS_CLOSURE(i) extern W_(i)[] -# define RTS_FUN_DECL(f) extern DLL_IMPORT_RTS StgFunPtr f(void) +# define RTS_FUN_DECL(f) extern StgFunPtr f(void) #else -# define RTS_RET_INFO(i) extern DLL_IMPORT_RTS const StgRetInfoTable i -# define RTS_FUN_INFO(i) extern DLL_IMPORT_RTS const StgFunInfoTable i -# define RTS_THUNK_INFO(i) extern DLL_IMPORT_RTS const StgThunkInfoTable i -# define RTS_INFO(i) extern DLL_IMPORT_RTS const StgInfoTable i -# define RTS_CLOSURE(i) extern DLL_IMPORT_RTS StgClosure i -# define RTS_FUN_DECL(f) extern DLL_IMPORT_RTS StgFunPtr f(void) +# define RTS_RET_INFO(i) extern const StgRetInfoTable i +# define RTS_FUN_INFO(i) extern const StgFunInfoTable i +# define RTS_THUNK_INFO(i) extern const StgThunkInfoTable i +# define RTS_INFO(i) extern const StgInfoTable i +# define RTS_CLOSURE(i) extern StgClosure i +# define RTS_FUN_DECL(f) extern StgFunPtr f(void) #endif #if defined(TABLES_NEXT_TO_CODE) @@ -274,11 +274,11 @@ RTS_CLOSURE(stg_NO_TREC_closure); RTS_ENTRY(stg_NO_FINALIZER); #if IN_STG_CODE -extern DLL_IMPORT_RTS StgWordArray stg_CHARLIKE_closure; -extern DLL_IMPORT_RTS StgWordArray stg_INTLIKE_closure; +extern StgWordArray stg_CHARLIKE_closure; +extern StgWordArray stg_INTLIKE_closure; #else -extern DLL_IMPORT_RTS StgIntCharlikeClosure stg_CHARLIKE_closure[]; -extern DLL_IMPORT_RTS StgIntCharlikeClosure stg_INTLIKE_closure[]; +extern StgIntCharlikeClosure stg_CHARLIKE_closure[]; +extern StgIntCharlikeClosure stg_INTLIKE_closure[]; #endif /* StgStartup */ ===================================== rts/rts.cabal ===================================== @@ -334,7 +334,6 @@ library rts/storage/InfoTables.h rts/storage/MBlock.h rts/storage/TSO.h - stg/DLL.h stg/MachRegs.h stg/MachRegs/arm32.h stg/MachRegs/arm64.h View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/4d6fa0a8600ddbc04ffda028760418e… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/4d6fa0a8600ddbc04ffda028760418e… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][wip/romes/cleanup] cleanup: Drop obsolete DLL_IMPORT_DATA_REF
by Rodrigo Mesquita (＠alt-romes) 23 Sep '25

23 Sep '25

Rodrigo Mesquita pushed to branch wip/romes/cleanup at Glasgow Haskell Compiler / GHC Commits: 034a1f98 by Rodrigo Mesquita at 2025-09-23T18:16:37+01:00 cleanup: Drop obsolete DLL_IMPORT_DATA_REF This macro no longer makes sense since COMPILING_WINDOWS_DLL was dropped in b8cfa8f741729ef123569fb321c4b2ab4a1a941c. This allows us to get rid of the rts/DLL.h file too. - - - - - 7 changed files: - rts/CloneStack.h - rts/Prelude.h - rts/RtsSymbols.c - rts/include/RtsAPI.h - rts/include/Stg.h - − rts/include/stg/DLL.h - rts/rts.cabal Changes: ===================================== rts/CloneStack.h ===================================== @@ -9,7 +9,7 @@ #pragma once extern StgClosure ghczminternal_GHCziInternalziStackziCloneStack_StackSnapshot_closure; -#define StackSnapshot_constructor_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziStackziCloneStack_StackSnapshot_closure) +#define StackSnapshot_constructor_closure (&(ghczminternal_GHCziInternalziStackziCloneStack_StackSnapshot_closure)) StgStack* cloneStack(Capability* capability, const StgStack* stack); ===================================== rts/Prelude.h ===================================== @@ -87,58 +87,58 @@ PRELUDE_INFO(ghczminternal_GHCziInternalziWord_W32zh_con_info); PRELUDE_INFO(ghczminternal_GHCziInternalziWord_W64zh_con_info); PRELUDE_INFO(ghczminternal_GHCziInternalziStable_StablePtr_con_info); -#define Unit_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziTuple_Z0T_closure) -#define True_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziTypes_True_closure) -#define False_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziTypes_False_closure) -#define unpackCString_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziPack_unpackCString_closure) -#define runFinalizerBatch_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziWeakziFinalizze_runFinalizzerBatch_closure) +#define Unit_closure (&(ghczminternal_GHCziInternalziTuple_Z0T_closure)) +#define True_closure (&(ghczminternal_GHCziInternalziTypes_True_closure)) +#define False_closure (&(ghczminternal_GHCziInternalziTypes_False_closure)) +#define unpackCString_closure (&(ghczminternal_GHCziInternalziPack_unpackCString_closure)) +#define runFinalizerBatch_closure (&(ghczminternal_GHCziInternalziWeakziFinalizze_runFinalizzerBatch_closure)) #define mainIO_closure (&ZCMain_main_closure) -#define runSparks_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziConcziSync_runSparks_closure) -#define ensureIOManagerIsRunning_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziConcziIO_ensureIOManagerIsRunning_closure) -#define interruptIOManager_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziConcziIO_interruptIOManager_closure) -#define ioManagerCapabilitiesChanged_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziConcziIO_ioManagerCapabilitiesChanged_closure) -#define runHandlersPtr_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziConcziSignal_runHandlersPtr_closure) +#define runSparks_closure (&(ghczminternal_GHCziInternalziConcziSync_runSparks_closure)) +#define ensureIOManagerIsRunning_closure (&(ghczminternal_GHCziInternalziConcziIO_ensureIOManagerIsRunning_closure)) +#define interruptIOManager_closure (&(ghczminternal_GHCziInternalziConcziIO_interruptIOManager_closure)) +#define ioManagerCapabilitiesChanged_closure (&(ghczminternal_GHCziInternalziConcziIO_ioManagerCapabilitiesChanged_closure)) +#define runHandlersPtr_closure (&(ghczminternal_GHCziInternalziConcziSignal_runHandlersPtr_closure)) #if defined(mingw32_HOST_OS) -#define processRemoteCompletion_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziEventziWindows_processRemoteCompletion_closure) +#define processRemoteCompletion_closure (&(ghczminternal_GHCziInternalziEventziWindows_processRemoteCompletion_closure)) #endif -#define runAllocationLimitHandler_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziAllocationLimitHandler_runAllocationLimitHandler_closure) - -#define flushStdHandles_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziTopHandler_flushStdHandles_closure) -#define runMainIO_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziTopHandler_runMainIO_closure) - -#define stackOverflow_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziIOziException_stackOverflow_closure) -#define heapOverflow_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziIOziException_heapOverflow_closure) -#define allocationLimitExceeded_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziIOziException_allocationLimitExceeded_closure) -#define blockedIndefinitelyOnMVar_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziIOziException_blockedIndefinitelyOnMVar_closure) -#define blockedIndefinitelyOnSTM_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziIOziException_blockedIndefinitelyOnSTM_closure) -#define cannotCompactFunction_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziIOziException_cannotCompactFunction_closure) -#define cannotCompactPinned_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziIOziException_cannotCompactPinned_closure) -#define cannotCompactMutable_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziIOziException_cannotCompactMutable_closure) -#define nonTermination_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziControlziExceptionziBase_nonTermination_closure) -#define nestedAtomically_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziControlziExceptionziBase_nestedAtomically_closure) -#define absentSumFieldError_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziPrimziPanic_absentSumFieldError_closure) -#define underflowException_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziExceptionziType_underflowException_closure) -#define overflowException_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziExceptionziType_overflowException_closure) -#define divZeroException_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziExceptionziType_divZZeroException_closure) - -#define blockedOnBadFD_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziEventziThread_blockedOnBadFD_closure) - -#define Czh_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziTypes_Czh_con_info) -#define Izh_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziTypes_Izh_con_info) -#define Fzh_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziTypes_Fzh_con_info) -#define Dzh_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziTypes_Dzh_con_info) -#define Wzh_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziTypes_Wzh_con_info) -#define W8zh_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziWord_W8zh_con_info) -#define W16zh_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziWord_W16zh_con_info) -#define W32zh_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziWord_W32zh_con_info) -#define W64zh_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziWord_W64zh_con_info) -#define I8zh_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziInt_I8zh_con_info) -#define I16zh_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziInt_I16zh_con_info) -#define I32zh_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziInt_I32zh_con_info) -#define I64zh_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziInt_I64zh_con_info) -#define I64zh_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziInt_I64zh_con_info) -#define Ptr_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziPtr_Ptr_con_info) -#define FunPtr_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziPtr_FunPtr_con_info) -#define StablePtr_static_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziStable_StablePtr_static_info) -#define StablePtr_con_info DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziStable_StablePtr_con_info) +#define runAllocationLimitHandler_closure (&(ghczminternal_GHCziInternalziAllocationLimitHandler_runAllocationLimitHandler_closure)) + +#define flushStdHandles_closure (&(ghczminternal_GHCziInternalziTopHandler_flushStdHandles_closure)) +#define runMainIO_closure (&(ghczminternal_GHCziInternalziTopHandler_runMainIO_closure)) + +#define stackOverflow_closure (&(ghczminternal_GHCziInternalziIOziException_stackOverflow_closure)) +#define heapOverflow_closure (&(ghczminternal_GHCziInternalziIOziException_heapOverflow_closure)) +#define allocationLimitExceeded_closure (&(ghczminternal_GHCziInternalziIOziException_allocationLimitExceeded_closure)) +#define blockedIndefinitelyOnMVar_closure (&(ghczminternal_GHCziInternalziIOziException_blockedIndefinitelyOnMVar_closure)) +#define blockedIndefinitelyOnSTM_closure (&(ghczminternal_GHCziInternalziIOziException_blockedIndefinitelyOnSTM_closure)) +#define cannotCompactFunction_closure (&(ghczminternal_GHCziInternalziIOziException_cannotCompactFunction_closure)) +#define cannotCompactPinned_closure (&(ghczminternal_GHCziInternalziIOziException_cannotCompactPinned_closure)) +#define cannotCompactMutable_closure (&(ghczminternal_GHCziInternalziIOziException_cannotCompactMutable_closure)) +#define nonTermination_closure (&(ghczminternal_GHCziInternalziControlziExceptionziBase_nonTermination_closure)) +#define nestedAtomically_closure (&(ghczminternal_GHCziInternalziControlziExceptionziBase_nestedAtomically_closure)) +#define absentSumFieldError_closure (&(ghczminternal_GHCziInternalziPrimziPanic_absentSumFieldError_closure)) +#define underflowException_closure (&(ghczminternal_GHCziInternalziExceptionziType_underflowException_closure)) +#define overflowException_closure (&(ghczminternal_GHCziInternalziExceptionziType_overflowException_closure)) +#define divZeroException_closure (&(ghczminternal_GHCziInternalziExceptionziType_divZZeroException_closure)) + +#define blockedOnBadFD_closure (&(ghczminternal_GHCziInternalziEventziThread_blockedOnBadFD_closure)) + +#define Czh_con_info (&(ghczminternal_GHCziInternalziTypes_Czh_con_info)) +#define Izh_con_info (&(ghczminternal_GHCziInternalziTypes_Izh_con_info)) +#define Fzh_con_info (&(ghczminternal_GHCziInternalziTypes_Fzh_con_info)) +#define Dzh_con_info (&(ghczminternal_GHCziInternalziTypes_Dzh_con_info)) +#define Wzh_con_info (&(ghczminternal_GHCziInternalziTypes_Wzh_con_info)) +#define W8zh_con_info (&(ghczminternal_GHCziInternalziWord_W8zh_con_info)) +#define W16zh_con_info (&(ghczminternal_GHCziInternalziWord_W16zh_con_info)) +#define W32zh_con_info (&(ghczminternal_GHCziInternalziWord_W32zh_con_info)) +#define W64zh_con_info (&(ghczminternal_GHCziInternalziWord_W64zh_con_info)) +#define I8zh_con_info (&(ghczminternal_GHCziInternalziInt_I8zh_con_info)) +#define I16zh_con_info (&(ghczminternal_GHCziInternalziInt_I16zh_con_info)) +#define I32zh_con_info (&(ghczminternal_GHCziInternalziInt_I32zh_con_info)) +#define I64zh_con_info (&(ghczminternal_GHCziInternalziInt_I64zh_con_info)) +#define I64zh_con_info (&(ghczminternal_GHCziInternalziInt_I64zh_con_info)) +#define Ptr_con_info (&(ghczminternal_GHCziInternalziPtr_Ptr_con_info)) +#define FunPtr_con_info (&(ghczminternal_GHCziInternalziPtr_FunPtr_con_info)) +#define StablePtr_static_info (&(ghczminternal_GHCziInternalziStable_StablePtr_static_info)) +#define StablePtr_con_info (&(ghczminternal_GHCziInternalziStable_StablePtr_con_info)) ===================================== rts/RtsSymbols.c ===================================== @@ -1054,9 +1054,9 @@ RTS_ARM_OUTLINE_ATOMIC_SYMBOLS #define SymI_HasDataProto(vvv) { MAYBE_LEADING_UNDERSCORE_STR(#vvv), \ (void*)(&(vvv)), STRENGTH_NORMAL, SYM_TYPE_DATA }, #define SymE_HasProto(vvv) { MAYBE_LEADING_UNDERSCORE_STR(#vvv), \ - (void*)DLL_IMPORT_DATA_REF(vvv), STRENGTH_NORMAL, SYM_TYPE_CODE }, + (void*)(&(vvv)), STRENGTH_NORMAL, SYM_TYPE_CODE }, #define SymE_HasDataProto(vvv) { MAYBE_LEADING_UNDERSCORE_STR(#vvv), \ - (void*)DLL_IMPORT_DATA_REF(vvv), STRENGTH_NORMAL, SYM_TYPE_DATA }, + (void*)(&(vvv)), STRENGTH_NORMAL, SYM_TYPE_DATA }, #define SymI_NeedsProto(vvv) SymI_HasProto(vvv) #define SymI_NeedsDataProto(vvv) SymI_HasDataProto(vvv) ===================================== rts/include/RtsAPI.h ===================================== @@ -587,8 +587,8 @@ void rts_done (void); extern StgClosure ghczminternal_GHCziInternalziTopHandler_runIO_closure; extern StgClosure ghczminternal_GHCziInternalziTopHandler_runNonIO_closure; -#define runIO_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziTopHandler_runIO_closure) -#define runNonIO_closure DLL_IMPORT_DATA_REF(ghczminternal_GHCziInternalziTopHandler_runNonIO_closure) +#define runIO_closure (&(ghczminternal_GHCziInternalziTopHandler_runIO_closure)) +#define runNonIO_closure (&(ghczminternal_GHCziInternalziTopHandler_runNonIO_closure)) /* ------------------------------------------------------------------------ */ ===================================== rts/include/Stg.h ===================================== @@ -352,7 +352,6 @@ external prototype return neither of these types to workaround #11395. Other Stg stuff... -------------------------------------------------------------------------- */ -#include "stg/DLL.h" #include "stg/MachRegsForHost.h" #include "stg/Regs.h" #include "stg/Ticky.h" ===================================== rts/include/stg/DLL.h deleted ===================================== @@ -1,26 +0,0 @@ -/* ----------------------------------------------------------------------------- - * - * (c) The GHC Team, 1998-2009 - * - * Support for Windows DLLs. - * - * Do not #include this file directly: #include "Rts.h" instead. - * - * To understand the structure of the RTS headers, see the wiki: - * https://gitlab.haskell.org/ghc/ghc/wikis/commentary/source-tree/includes - * - * ---------------------------------------------------------------------------*/ - -#pragma once - -# define DLL_IMPORT_DATA_REF(x) (&(x)) - -/* The view of the rts/include/ header files differ ever so - slightly depending on whether the RTS is being compiled - or not - so we're forced to distinguish between two. - [oh, you want details :) : Data symbols defined by the RTS - have to be accessed through an extra level of indirection - when compiling generated .hc code compared to when the RTS - sources are being processed. This is only the case when - using Win32 DLLs. ] -*/ ===================================== rts/rts.cabal ===================================== @@ -334,7 +334,6 @@ library rts/storage/InfoTables.h rts/storage/MBlock.h rts/storage/TSO.h - stg/DLL.h stg/MachRegs.h stg/MachRegs/arm32.h stg/MachRegs/arm64.h View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/034a1f98f7e7053b3c5ac2ec8ef49fa… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/034a1f98f7e7053b3c5ac2ec8ef49fa… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc] Pushed new branch wip/romes/cleanup
by Rodrigo Mesquita (＠alt-romes) 23 Sep '25

23 Sep '25

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

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[Git][ghc/ghc] Pushed new branch wip/gbc-files
by Matthew Pickering (＠mpickering) 23 Sep '25

23 Sep '25

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

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[Git][ghc/ghc][wip/marge_bot_batch_merge_job] 8 commits: compiler: move Binary instance of Map to GHC.Utils.Binary
by Marge Bot (＠marge-bot) 23 Sep '25

23 Sep '25

Marge Bot pushed to branch wip/marge_bot_batch_merge_job at Glasgow Haskell Compiler / GHC Commits: 8b0940db by Cheng Shao at 2025-09-20T06:48:05-04:00 compiler: move Binary instance of Map to GHC.Utils.Binary This patch moves `Binary` instance of `Map` from `haddock-api` to `GHC.Utils.Binary`. This also allows us to remove a redundant instance defined for `NameEntityInfo`, which is a type synonym for `Map`. - - - - - 4a8fed75 by Vladislav Zavialov at 2025-09-20T06:48:47-04:00 Fix keyword in ExplicitNamespaces error message (#26418) Consider this module header and the resulting error: {-# LANGUAGE NoExplicitNamespaces #-} module T26418 (data HeadC) where -- error: [GHC-47007] -- Illegal keyword 'type' Previously, the error message would mention 'type' (as shown above), even though the user wrote 'data'. This has now been fixed. The error location has also been corrected: it is now reported at the keyword position rather than at the position of the associated import/export item. - - - - - 867c2675 by Cheng Shao at 2025-09-20T06:49:28-04:00 wasm: fix dyld handling for forward declared GOT.func items This patch fixes wasm shared linker's handling of forward declared GOT.func items, see linked issue for details. Also adds T26430 test to witness the fix. Fixes #26430. Co-authored-by: Codex <codex(a)openai.com> - - - - - 94152272 by Simon Peyton Jones at 2025-09-23T08:43:53-04:00 Improve pretty printer for HsExpr Given a very deeply-nested application, it just kept printing deeper and deeper. This small change makes it cut off. Test is in #26330, but we also get a dramatic decrease in compile time for perf/compiler/InstanceMatching: InstanceMatching 4,086,884,584 1,181,767,232 -71.1% GOOD Why? Because before we got a GIGANTIC error message that took ages to pretty-print; now we get this much more civilised message (I have removed some whitespace.) Match.hs:1007:1: error: • No instance for ‘Show (F001 a)’ arising from a use of ‘showsPrec’ • In the second argument of ‘showString’, namely ‘(showsPrec 11 b1 (GHC.Internal.Show.showSpace (showsPrec 11 b2 (GHC.Internal.Show.showSpace (showsPrec 11 b3 (GHC.Internal.Show.showSpace (showsPrec 11 b4 (GHC.Internal.Show.showSpace (showsPrec 11 b5 (GHC.Internal.Show.showSpace (showsPrec 11 b6 (GHC.Internal.Show.showSpace (showsPrec ...)))))))))))))’ ----------------------- The main payload is * At the start of `pprExpr` * In the defn of `pprApp` A little bit of refactoring: * It turned out that we were setting the default cut-off depth to a fixed value in two places, so changing one didn't change the other. See defaultSDocDepth and defaultSDocCols * I refactored `pprDeeperList` a bit so I could understand it better. Because the depth calculation has changed, there are lots of small error message wibbles. Metric Decrease: InstanceMatching - - - - - b635f672 by Simon Peyton Jones at 2025-09-23T08:43:54-04:00 Use Outputable.ellipsis rather than text "..." - - - - - 30af8843 by Sylvain Henry at 2025-09-23T08:44:14-04:00 deriveConstants: automatically pass -fcommon CC flag (#26393) By mistake we tried to use deriveConstants without passing `--gcc-flag -fcommon` (which Hadrian does) and it failed. This patch: 1. adds parsing support for constants stored in the .bss section (i.e. when -fcommon isn't passed) 2. enables passing `-fcommon` automatically to the C compiler because Windows requires this for subtle reasons 3. Documents the subtle reasons (1) isn't strictly necessary because we always do (2) but it does no harm and it is still useful if the CC flags ever contain -fno-common - - - - - 05ad1eb6 by Oleg Grenrus at 2025-09-23T08:44:15-04:00 Don't wrap spaces in s Doing similar comparison as in 63189b2ceca07edf4e179f4180ca60d470c62cb3 With this change the gzipped documentation is now 2% smaller (previously 1%) 12_694_206 Agda-2.9.0-docs-orig.tar.gz 12_436_829 Agda-2.9.0-docs.tar.gz Unzipped docs are 5% smaller (previously 3%) 178M Agda-2.9.0-docs-orig 169M Agda-2.9.0-docs Individual hyperlinked sources are around 7-10% smaller (previously 5%) (`Parser` module is generated by happy and has relatively little whitespace) 14_230_117 Agda.Syntax.Parser.Parser.html 13_220_758 Agda.Syntax.Parser.Parser.html Agda's hyperlinked sources are 9% smaller now: 121M Agda-2.9.0-docs-orig/src 110M Agda-2.9.0-docs/src - - - - - 401871c2 by Cheng Shao at 2025-09-23T08:44:16-04:00 rts: remove obsolete __GNUC__ related logic This patch removes obsolete `__GNUC__` related logic, given on any currently supported platform and toolchain, `__GNUC__ >= 4` is universally true. Also pulls some other weeds and most notably, use `__builtin___clear_cache` for clang as well, since clang has supported this gcc intrinsic since 2014, see https://github.com/llvm/llvm-project/commit/c491a8d4577052bc6b3b4c72a7db6a7…. - - - - - 98 changed files: - compiler/GHC/Core/Opt/Simplify/Env.hs - compiler/GHC/Core/Ppr.hs - compiler/GHC/Driver/DynFlags.hs - compiler/GHC/Hs/Expr.hs - compiler/GHC/HsToCore/Errors/Ppr.hs - compiler/GHC/HsToCore/Pmc/Ppr.hs - compiler/GHC/HsToCore/Pmc/Types.hs - compiler/GHC/Iface/Ext/Types.hs - compiler/GHC/Iface/Syntax.hs - compiler/GHC/Llvm/Ppr.hs - compiler/GHC/Llvm/Types.hs - compiler/GHC/Parser.y - compiler/GHC/Parser/Errors/Ppr.hs - compiler/GHC/Parser/Errors/Types.hs - compiler/GHC/Parser/PostProcess.hs - compiler/GHC/Parser/Types.hs - compiler/GHC/Runtime/Heap/Inspect.hs - compiler/GHC/Runtime/Loader.hs - compiler/GHC/Tc/Errors/Ppr.hs - compiler/GHC/Types/Hint/Ppr.hs - compiler/GHC/Utils/Binary.hs - compiler/GHC/Utils/Outputable.hs - compiler/GHC/Utils/Ppr.hs - hadrian/src/Settings/Builders/DeriveConstants.hs - libraries/ghc-internal/cbits/atomic.c - libraries/ghc-internal/cbits/ctz.c - rts/RtsStartup.c - rts/RtsSymbols.c - rts/include/Rts.h - rts/include/Stg.h - rts/include/rts/Types.h - rts/sm/BlockAlloc.c - rts/sm/Evac.h - rts/sm/Storage.c - testsuite/tests/arrows/gadt/T17423.stderr - + testsuite/tests/ghci-wasm/Makefile - + testsuite/tests/ghci-wasm/T26430.hs - + testsuite/tests/ghci-wasm/T26430A.c - + testsuite/tests/ghci-wasm/T26430B.c - + testsuite/tests/ghci-wasm/all.T - testsuite/tests/indexed-types/should_compile/PushedInAsGivens.stderr - testsuite/tests/indexed-types/should_fail/T26176.stderr - testsuite/tests/indexed-types/should_fail/T2693.stderr - testsuite/tests/indexed-types/should_fail/T4093b.stderr - testsuite/tests/indexed-types/should_fail/T8518.stderr - testsuite/tests/indexed-types/should_fail/T9662.stderr - testsuite/tests/linear/should_fail/Linear17.stderr - testsuite/tests/linear/should_fail/LinearLet7.stderr - testsuite/tests/parser/should_fail/RecordDotSyntaxFail10.stderr - testsuite/tests/parser/should_fail/RecordDotSyntaxFail11.stderr - testsuite/tests/parser/should_fail/RecordDotSyntaxFail13.stderr - testsuite/tests/parser/should_fail/RecordDotSyntaxFail8.stderr - testsuite/tests/parser/should_fail/T16270h.stderr - + testsuite/tests/parser/should_fail/T26418.hs - + testsuite/tests/parser/should_fail/T26418.stderr - testsuite/tests/parser/should_fail/all.T - testsuite/tests/partial-sigs/should_compile/T21719.stderr - testsuite/tests/polykinds/T13393.stderr - testsuite/tests/rep-poly/T12709.stderr - testsuite/tests/simplCore/should_compile/simpl017.stderr - testsuite/tests/th/T10945.stderr - testsuite/tests/th/TH_StaticPointers02.stderr - testsuite/tests/typecheck/should_compile/T11339.stderr - testsuite/tests/typecheck/should_fail/DoExpansion3.stderr - testsuite/tests/typecheck/should_fail/T12177.stderr - testsuite/tests/typecheck/should_fail/T22707.stderr - testsuite/tests/typecheck/should_fail/T24064.stderr - + testsuite/tests/typecheck/should_fail/T26330.hs - + testsuite/tests/typecheck/should_fail/T26330.stderr - testsuite/tests/typecheck/should_fail/T8142.stderr - testsuite/tests/typecheck/should_fail/T8603.stderr - testsuite/tests/typecheck/should_fail/all.T - testsuite/tests/typecheck/should_fail/tcfail128.stderr - testsuite/tests/typecheck/should_fail/tcfail153.stderr - testsuite/tests/typecheck/should_fail/tcfail168.stderr - testsuite/tests/typecheck/should_fail/tcfail177.stderr - testsuite/tests/typecheck/should_fail/tcfail185.stderr - testsuite/tests/typecheck/should_run/Typeable1.stderr - utils/deriveConstants/Main.hs - utils/haddock/haddock-api/src/Haddock/Backends/Hyperlinker/Renderer.hs - utils/haddock/haddock-api/src/Haddock/InterfaceFile.hs - utils/haddock/hypsrc-test/ref/src/Bug1091.html - utils/haddock/hypsrc-test/ref/src/CPP.html - utils/haddock/hypsrc-test/ref/src/Classes.html - utils/haddock/hypsrc-test/ref/src/Constructors.html - utils/haddock/hypsrc-test/ref/src/Identifiers.html - utils/haddock/hypsrc-test/ref/src/LinkingIdentifiers.html - utils/haddock/hypsrc-test/ref/src/Literals.html - utils/haddock/hypsrc-test/ref/src/Operators.html - utils/haddock/hypsrc-test/ref/src/Polymorphism.html - utils/haddock/hypsrc-test/ref/src/PositionPragmas.html - utils/haddock/hypsrc-test/ref/src/Quasiquoter.html - utils/haddock/hypsrc-test/ref/src/Records.html - utils/haddock/hypsrc-test/ref/src/TemplateHaskellQuasiquotes.html - utils/haddock/hypsrc-test/ref/src/TemplateHaskellSplices.html - utils/haddock/hypsrc-test/ref/src/Types.html - utils/haddock/hypsrc-test/ref/src/UsingQuasiquotes.html - utils/jsffi/dyld.mjs The diff was not included because it is too large. View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/b5acbab629efefc06130f622039f09… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/b5acbab629efefc06130f622039f09… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][wip/fix-26065] 66 commits: rel-eng: update alpine images to 3.22
by Andreas Klebinger (＠AndreasK) 23 Sep '25

23 Sep '25

Andreas Klebinger pushed to branch wip/fix-26065 at Glasgow Haskell Compiler / GHC Commits: d17257ed by Cheng Shao at 2025-09-10T17:01:27+02:00 rel-eng: update alpine images to 3.22 This patch is a part of #25876 and updates alpine images to 3.22, while still retaining 3.12 for x86_64 fully_static bindists. ------------------------- Metric Decrease: MultiComponentModulesRecomp ------------------------- - - - - - db3276bb by Sylvain Henry at 2025-09-11T11:27:28-04:00 T16180: indicate that the stack isn't executable - - - - - 11eeeba7 by Sylvain Henry at 2025-09-11T11:27:28-04:00 Fix some tests (statically linked GHC vs libc) When GHC is linked statically, the stdout C global variable that GHC uses isn't shared with the stdout C global variable used by loaded code. As a consequence, the latter must be explicitly flushed because GHC won't flush it before exiting. - - - - - 80a07571 by Sylvain Henry at 2025-09-11T11:28:18-04:00 Testsuite: fix debug_rts detection Running the testsuite without Hadrian should set config.debug_rts correctly too. - - - - - 62ae97de by Duncan Coutts at 2025-09-12T13:23:33-04:00 Handle heap allocation failure in I/O primops The current I/O managers do not use allocateMightFail, but future ones will. To support this properly we need to be able to return to the primop with a failure. We simply use a bool return value. Currently however, we will just throw an exception rather than calling the GC because that's what all the other primops do too. For the general issue of primops invoking GC and retrying, see https://gitlab.haskell.org/ghc/ghc/-/issues/24105 - - - - - cb9093f5 by Duncan Coutts at 2025-09-12T13:23:33-04:00 Move (and rename) scheduleStartSignalHandlers into RtsSignals.h Previously it was a local helper (static) function in Schedule.c. Rename it to startPendingSignalHandlers and deifine it as an inline header function in RtsSignals.h. So it should still be fast. Each (new style) I/O manager is going to need to do the same, so eliminating the duplication now makes sense. - - - - - 9736d44a by Duncan Coutts at 2025-09-12T13:23:33-04:00 Reduce detail in printThreadBlockage I/O blocking cases The printThreadBlockage is used in debug tracing output. For the cases BlockedOn{Read,Write,Delay} the output previously included the fd that was being waited on, and the delay target wake time. Superficially this sounds useful, but it's clearly not that useful because it was already wrong for the Win32 non-threaded I/O manager. In that situation it will print garbage (the async_result pointer, cast to a fd or a time). So given that it apparently never mattered that the information was accurate, then it's hardly a big jump to say it doesn't matter if it is present at all. A good reason to remove it is that otherwise we have to make a new API and a per-I/O manager implementation to fetch the information. And for some I/O manager implementations, this information is not available. It is not available in the win32 non-threaded I/O manager. And for some future Linux ones, there is no need for the fd to be stored, so storing it would be just extra space used for very little gain. So the simplest thing is to just remove the detail. - - - - - bc0f2d5d by Duncan Coutts at 2025-09-12T13:23:33-04:00 Add TimeoutQueue.{c,h} and corresponding tests A data structure used to efficiently manage a collection of timeouts. It is a priority queue based on absolute expiry time. It uses 64bit high-precision Time for the keys. The values are normal closures which allows for example using MVars for unblocking. It is common in many applications for timeouts to be created and then deleted or altered before they expire. Thus the choice of data structure for timeouts should support this efficiently. The implementation choice here is a leftist heap with the extra feature that it supports deleting arbitrary elements, provided the caller retain a pointer to the element. While the deleteMin operation takes O(log n) time, as in all heap structures, the delete operation for arbitrary elements /typically/ takes O(1), and only O(log n) in the worst case. In practice, when managing thousands of timeouts it can be a factor of 10 faster to delete a random timeout queue element than to remove the minimum element. This supports the common use case. The plan is to use it in some of the RTS-side I/O managers to support their timer functionality. In this use case the heap value will be an MVar used for each timeout to unblock waiting threads. - - - - - d1679c9d by Duncan Coutts at 2025-09-12T13:23:33-04:00 Add ClosureTable.{c,h} and corresponding tests A table of pointers to closures on the GC heap with stable indexes. It provides O(1) alloc, free and lookup. The table can be expanded using a simple doubling strategy: in which case allocation is typically O(1) and occasionally O(n) for overall amortised O(1). No shrinking is used. The table itself is heap allocated, and points to other heap objects. As such it's necessary to use markClosureTable to ensure the table is used as a GC root to keep the table entries alive, and maintain proper pointers to them as the GC moves heap objects about. It is designed to be allocated and accesses exclusively from a single capability, enabling it to work without any locking. It is thus similar to the StablePtr table, but per-capability which removes the need for locking. It _should_ also provide lower GC pause times with the non-moving GC by spending only O(1) time in markClosureTable, vs O(n) for markStablePtrTable. The plan is to use it in some of the I/O managers to keep track of in-flight I/O operations (but not timers). This allows the tracking info to be kept on the (unpinned) GC heap, and shared with Haskell code, and by putting a pointer to the tracking information in a table, the index remains stable and can be passed via foreign code (like the kernel). - - - - - 78cb8dd5 by Duncan Coutts at 2025-09-12T13:23:33-04:00 Add the StgAsyncIOOp closure type This is intended to be used by multiple I/O managers to help with tracking in-flight I/O operations. It is called asynchronous because from the point of view of the RTS we have many such operations in progress at once. From the point of view of a Haskell thread of course it can look synchronous. - - - - - a2839896 by Duncan Coutts at 2025-09-12T13:23:33-04:00 Add StgAsyncIOOp and StgTimeoutQueue to tso->block_info These will be used by new I/O managers, for threads blocked on I/O or timeouts. - - - - - fdc2451c by Duncan Coutts at 2025-09-12T13:23:33-04:00 Add a new I/O manager based on poll() This is a proof of concept I/O manager, to show how to add new ones neatly, using the ClosureTable and TimeoutQueue infrastructure. It uses the old unix poll() API, so it is of course limited in performance by that, but it should have the benefit of wide compatibility. Also we neatly avoid a name clash with the existing select() I/O manager. Compared to the select() I/O manager: 1. beause it uses poll() it is not limited to 1024 file descriptors (but it's still O(n) so don't expect great performance); 2. it should have much faster threadDelay (when using it in lots of threads at once) because it's based on the new TimeoutQueue which is O(log n) rather than O(n). Some of the code related to timers/timouts is put into a shared module rts/posix/Timeout.{h,c} since it is intended to be shared with other similar I/O managers. - - - - - 6c273b76 by Duncan Coutts at 2025-09-12T13:23:34-04:00 Document the I/O managers in the user guide and note the new poll I/O manager in the release notes. - - - - - 824fab74 by Duncan Coutts at 2025-09-12T13:23:34-04:00 Use the poll() I/O manager by default That is, for the non-threaded RTS, prefer the poll I/O manager over the legacy select() one, if both can be enabled. This patch is primarily for CI testing, so we should probably remove this patch before merging. We can change defaults later after wider testing and feedback. - - - - - 39392532 by Luite Stegeman at 2025-09-12T13:24:16-04:00 Support larger unboxed sums Change known constructor encoding for sums in interfaces to use 11 bits for both the arity and the alternative (up from 8 and 6, respectively) - - - - - 2af12e21 by Luite Stegeman at 2025-09-12T13:24:16-04:00 Decompose padding smallest-first in Cmm toplevel data constructors This makes each individual padding value aligned - - - - - 418fa78f by Luite Stegeman at 2025-09-12T13:24:16-04:00 Use slots smaller than word as tag for smaller unboxed sums This packs unboxed sums more efficiently by allowing Word8, Word16 and Word32 for the tag field if the number of constructors is small enough - - - - - 8d7e912f by Rodrigo Mesquita at 2025-09-12T17:57:24-04:00 ghc-toolchain: Use ByteOrder rather than new Endianness Don't introduce a duplicate datatype when the previous one is equivalent and already used elsewhere. This avoids unnecessary translation between the two. - - - - - 7d378476 by Rodrigo Mesquita at 2025-09-12T17:57:24-04:00 Read Toolchain.Target files rather than 'settings' This commit makes GHC read `lib/targets/default.target`, a file with a serialized value of `ghc-toolchain`'s `GHC.Toolchain.Target`. Moreover, it removes all the now-redundant entries from `lib/settings` that are configured as part of a `Target` but were being written into `settings`. This makes it easier to support multiple targets from the same compiler (aka runtime retargetability). `ghc-toolchain` can be re-run many times standalone to produce a `Target` description for different targets, and, in the future, GHC will be able to pick at runtime amongst different `Target` files. This commit only makes it read the default `Target` configured in-tree or configured when installing the bindist. The remaining bits of `settings` need to be moved to `Target` in follow up commits, but ultimately they all should be moved since they are per-target relevant. Fixes #24212 On Windows, the constant overhead of parsing a slightly more complex data structure causes some small-allocation tests to wiggle around 1 to 2 extra MB (1-2% in these cases). ------------------------- Metric Increase: MultiLayerModulesTH_OneShot T10421 T10547 T12234 T12425 T13035 T18140 T18923 T9198 TcPlugin_RewritePerf ------------------------- - - - - - e0780a16 by Rodrigo Mesquita at 2025-09-12T17:57:24-04:00 ghc-toolchain: Move TgtHasLibm to per-Target file TargetHasLibm is now part of the per-target configuration Towards #26227 - - - - - 8235dd8c by Rodrigo Mesquita at 2025-09-12T17:57:24-04:00 ghc-toolchain: Move UseLibdw to per-Target file To support DWARF unwinding, the RTS must be built with the -f+libdw flag and with the -DUSE_LIBDW macro definition. These flags are passed on build by Hadrian when --enable-dwarf-unwinding is specified at configure time. Whether the RTS was built with support for DWARF is a per-target property, and as such, it was moved to the per-target GHC.Toolchain.Target.Target file. Additionally, we keep in the target file the include and library paths for finding libdw, since libdw should be checked at configure time (be it by configure, or ghc-toolchain, that libdw is properly available). Preserving the user-given include paths for libdw facilitates in the future building the RTS on demand for a given target (if we didn't keep that user input, we couldn't) Towards #26227 - - - - - d5ecf2e8 by Rodrigo Mesquita at 2025-09-12T17:57:25-04:00 ghc-toolchain: Make "Support SMP" a query on a Toolchain.Target "Support SMP" is merely a function of target, so we can represent it as such in `ghc-toolchain`. Hadrian queries the Target using this predicate to determine how to build GHC, and GHC queries the Target similarly to report under --info whether it "Support SMP" Towards #26227 - - - - - e07b031a by Rodrigo Mesquita at 2025-09-12T17:57:25-04:00 ghc-toolchain: Make "tgt rts linker only supports shared libs" function on Target Just like with "Support SMP", "target RTS linker only supports shared libraries" is a predicate on a `Target` so we can just compute it when necessary from the given `Target`. Towards #26227 - - - - - 14123ee6 by Simon Peyton Jones at 2025-09-12T17:58:07-04:00 Solve forall-constraints via an implication, again In this earlier commit: commit 953fd8f1dc080f1c56e3a60b4b7157456949be29 Author: Simon Peyton Jones <simon.peytonjones(a)gmail.com> Date: Mon Jul 21 10:06:43 2025 +0100 Solve forall-constraints immediately, or not at all I used a all-or-nothing strategy for quantified constraints (aka forall-constraints). But alas that fell foul of #26315, and #26376. So this MR goes back to solving a quantified constraint by turning it into an implication; UNLESS we are simplifying constraints from a SPECIALISE pragma, in which case the all-or-nothing strategy is great. See: Note [Solving a Wanted forall-constraint] Other stuff in this MR: * TcSMode becomes a record of flags, rather than an enumeration type; much nicer. * Some fancy footwork to avoid error messages worsening again (The above MR made them better; we want to retain that.) See `GHC.Tc.Errors.Ppr.pprQCOriginExtra`. ------------------------- Metric Decrease: T24471 ------------------------- - - - - - e6c192e2 by Simon Peyton Jones at 2025-09-12T17:58:07-04:00 Add a test case for #26396 ...same bug ast #26315 - - - - - 8f3d80ff by Luite Stegeman at 2025-09-13T08:43:09+02:00 Use mkVirtHeapOffsets for reconstructing terms in RTTI This makes mkVirtHeapOffsets the single source of truth for finding field offsets in closures. - - - - - eb389338 by Luite Stegeman at 2025-09-13T08:43:09+02:00 Sort non-pointer fields by size for more efficient packing This sorts non-pointer fields in mkVirtHeapOffsets, always storing the largest field first. The relative order of equally sized fields remains unchanged. This reduces wasted padding/alignment space in closures with differently sized fields. - - - - - 99b233f4 by Alison at 2025-09-13T16:51:04-04:00 ghc-heap: Fix race condition with profiling builds Apply the same fix from Closures.hs (64fd0fac83) to Heap.hs by adding empty imports to make way-dependent dependencies visible to `ghc -M`. Fixes #15197, #26407 - - - - - 77deaa7a by Cheng Shao at 2025-09-14T21:29:45-04:00 hadrian: build in-tree gmp with -fvisibility=hidden When hadrian builds in-tree gmp, it should build the shared objects with -fvisibility=hidden. The gmp symbols are only used by bignum logic in ghc-internal and shouldn't be exported by the ghc-internal shared library. We should always strive to keep shared library symbol table lean, which benefits platforms with slow dynamic linker or even hard limits about how many symbols can be exported (e.g. macos dyld, win32 dll and wasm dyld). - - - - - 42a18960 by Cheng Shao at 2025-09-14T21:30:26-04:00 Revert "wasm: add brotli compression for ghci browser mode" This reverts commit 731217ce68a1093b5f9e26a07d5bd2cdade2b352. Benchmarks show non-negligible overhead when browser runs on the same host, which is the majority of actual use cases. - - - - - e6755b9f by Cheng Shao at 2025-09-14T21:30:26-04:00 wasm: remove etag logic in ghci browser mode web server This commit removes the etag logic in dyld script's ghci browser mode web server. It was meant to support caching logic of wasm shared libraries, but even if the port is manually specified to make caching even relevant, for localhost the extra overhead around etag logic is simply not worth it according to benchmarks. - - - - - ac5859b9 by sheaf at 2025-09-16T14:58:38-04:00 Add 'Outputable Natural' instance This commit adds an Outputable instance for the Natural natural-number type, as well as a "natural :: Natural -> SDoc" function that mirrors the existing "integer" function. - - - - - d48ebc23 by Cheng Shao at 2025-09-16T14:59:18-04:00 autoconf: emit warning instead of error for FIND_PYTHON logic This patch makes FIND_PYTHON logic emit warning instead of error, so when the user doesn't expect to run the testsuite driver (especially when installing a bindist), python would not be mandatory. Fixes #26347. - - - - - 54b5950e by Sylvain Henry at 2025-09-17T04:45:18-04:00 Print fully qualified unit names in name mismatch It's more user-friendly to directly print the right thing instead of requiring the user to retry with the additional `-dppr-debug` flag. - - - - - 403cb665 by Ben Gamari at 2025-09-17T04:46:00-04:00 configure: Fix consistency between distrib and source CC check Previously distrib/configure.ac did not include `cc`. Closes #26394. - - - - - 2dcd4cb9 by Oleg Grenrus at 2025-09-17T04:46:41-04:00 Use isPrint in showUnique The comment say ``` -- Avoid emitting non-printable characters in pretty uniques. See #25989. ``` so let the code do exactly that. There are tags (at least : and 0 .. 9) which weren't in A .. z range. - - - - - e5dd754b by Oleg Grenrus at 2025-09-17T04:46:42-04:00 Shorten in-module links in hyperlinked source Instead of href="This.Module#ident" to just "#ident" - - - - - 63189b2c by Oleg Grenrus at 2025-09-17T04:46:42-04:00 Use showUnique in internalAnchorIdent Showing the key of Unique as a number is generally not a great idea. GHC Unique has a tag in high bits, so the raw number is unnecessarily big. So now we have ```html <a href="#l-rvgK">bar</a> ``` instead of ```html <a href="#local-6989586621679015689">bar</a> ``` Together with previous changes of shorter intra-module links the effect on compressed files is not huge, that is expected as we simply remove repetitive contents which pack well. ``` 12_694_206 Agda-2.9.0-docs-orig.tar.gz 12_566_065 Agda-2.9.0-docs.tar.gz ``` However when unpacked, the difference can be significant, e.g. Agda's largest module source got 5% reduction: ``` 14_230_117 Agda.Syntax.Parser.Parser.html 13_422_109 Agda.Syntax.Parser.Parser.html ``` The whole hyperlinked source code directory got similar reduction ``` 121M Agda-2.9.0-docs-orig/src 114M Agda-2.9.0-docs/src ``` For the reference, sources are about 2/3 of the generated haddocks ``` 178M Agda-2.9.0-docs-old 172M Agda-2.9.0-docs ``` so we get around 3.5% size reduction overall. Not bad for a small local changes. - - - - - 6f63f57b by Stefan Schulze Frielinghaus at 2025-09-17T04:47:22-04:00 rts: Fix alignment for gen_workspace #26334 After a0fa4941903272c48b050d24e93eec819eff51bd bootstrap is broken on s390x and errors out with rts/sm/GCThread.h:207:5: error: error: alignment of array elements is greater than element size 207 | gen_workspace gens[]; | ^~~~~~~~~~~~~ The alignment constraint is applied via the attribute to the type gen_workspace and leaves the underlying type struct gen_workspace_ untouched. On Aarch64, x86, and s390x the struct has a size of 128 bytes. On Aarch64 and x86 the alignments of 128 and 64 are divisors of the size, respectively, which is why the type is a viable member type for an array. However, on s390x, the alignment is 256 and therefore is not a divisor of the size and hence cannot be used for arrays. Basically I see two fixes here. Either decrease the alignment requirement on s390x, or by applying the alignment constraint on the struct itself. The former might affect performance as noted in a0fa4941903272c48b050d24e93eec819eff51bd. The latter introduces padding bits whenever necessary in order to ensure that sizeof(gen_workspace[N])==N*sizeof(gen_workspace) holds which is done by this patch. - - - - - 06d25623 by Cheng Shao at 2025-09-17T19:32:27-04:00 ghci: add :shell command This patch adds a new :shell command to ghci which works similarly to :!, except it guarantees to run the command via sh -c. On POSIX hosts the behavior is identical to :!, but on Windows it uses the msys2 shell instead of system cmd.exe shell. This is convenient when writing simple ghci scripts that run simple POSIX commands, and the behavior can be expected to be coherent on both Windows and POSIX. Co-authored-by: Codex <codex(a)openai.com> - - - - - 186054f7 by Cheng Shao at 2025-09-17T19:32:27-04:00 testsuite: remove legacy :shell trick This commit makes use of the built-in :shell functionality in ghci in the test cases, and remove the legacy :shell trick. - - - - - 0a3a4aa3 by Cheng Shao at 2025-09-17T19:32:27-04:00 docs: document :shell in ghci This commit documents the :shell command in ghci. Co-authored-by: Codex <codex(a)openai.com> - - - - - a4ff12bb by Cheng Shao at 2025-09-17T19:33:09-04:00 ghc-internal: fix codepages program codepages was not properly updated during the base -> ghc-internal migration, this commit fixes it. - - - - - 7e094def by Cheng Shao at 2025-09-17T19:33:09-04:00 ghc-internal: relax ucd2haskell cabal upper bounds This commit relaxes ucd2haskell cabal upper bounds to make it runnable via ghc 9.12/9.14. - - - - - 7077c9f7 by Cheng Shao at 2025-09-17T19:33:09-04:00 ghc-internal: update to unicode 17.0.0 This commit updates the generated code in ghc-internal to match unicode 17.0.0. - - - - - cef8938f by sheaf at 2025-09-17T19:34:09-04:00 Bad record update msg: allow out-of-scope datacons This commit ensures that, when we encounter an invalid record update (because no constructor exists which contains all of the record fields mentioned in the record update), we graciously handle the situation in which the constructors themselves are not in scope. In that case, instead of looking up the constructors in the GlobalRdrEnv, directly look up their GREInfo using the lookupGREInfo function. Fixes #26391 - - - - - a2d9d7c2 by sheaf at 2025-09-17T19:34:09-04:00 Improve Notes about disambiguating record updates This commit updates the notes [Disambiguating record updates] and [Type-directed record disambiguation], in particular adding more information about the deprecation status of type-directed disambiguation of record updates. - - - - - de44e69e by sheaf at 2025-09-19T05:16:51-04:00 Enable TcM plugins in initTc This commit ensures that we run typechecker plugins and defaulting plugins whenever we call initTc. In particular, this ensures that the pattern-match checker, which calls 'initTcDsForSolver' which calls 'initTc', runs with typechecker plugins enabled. This matters for situations like: merge :: Vec n a -> Vec n a -> Vec (2 * n) a merge Nil Nil = Nil merge (a <: as) (b <: bs) = a :< (b <: merge as bs) in which we need the typechecker plugin to run in order to tell us that the Givens would be inconsistent in the additional equation merge (_ <: _) Nil and thus that the equation is not needed. Fixes #26395 - - - - - 2c378ad2 by Cheng Shao at 2025-09-19T05:17:33-04:00 rel-eng: update fedora image to 42 This patch is a part of #25876 and updates fedora image to 42. - - - - - 0a9d9ffc by Sylvain Henry at 2025-09-19T13:12:14-04:00 Fix output of T14999 (#23685) Fix output of T14999 to: - take into account the +1 offset to DW_AT_low_pc (see Note [Info Offset]) - always use Intel's syntax to force consistency: it was reported that sometimes GDB prints `jmpq` instead of `jmp` with the AT&T syntax - - - - - 1480872a by Vladislav Zavialov at 2025-09-19T13:12:54-04:00 Fix PREP_MAYBE_LIBRARY in prep_target_file.m4 This change fixes a configure error introduced in: commit 8235dd8c4945db9cb03e3be3c388d729d576ed1e ghc-toolchain: Move UseLibdw to per-Target file Now the build no longer fails with: acghc-toolchain: Failed to read a valid Target value from hadrian/cfg/default.target - - - - - d1d9e39e by Ben Gamari at 2025-09-19T18:24:52-04:00 StgToByteCode: Don't assume that data con workers are nullary Previously StgToByteCode assumed that all data-con workers were of a nullary representation. This is not a valid assumption, as seen in #23210, where an unsaturated application of a unary data constructor's worker resulted in invalid bytecode. Sadly, I have not yet been able to reduce a minimal testcase for this. Fixes #23210. - - - - - 3eeecd50 by Ben Gamari at 2025-09-19T18:24:53-04:00 testsuite: Mark T23146* as unbroken - - - - - 2e73f342 by sheaf at 2025-09-19T18:24:53-04:00 Add test for #26216 - - - - - c2efb912 by Sven Tennie at 2025-09-19T18:25:36-04:00 Generate correct test header This increases convenience when copying & pasting... - - - - - d2fb811e by Sven Tennie at 2025-09-19T18:25:36-04:00 foundation test: Fix shift amount (#26248) Shift primops' results are only defined for shift amounts of 0 to word size - 1. The approach is similar to testing div-like operations (which have a constraint regarding zero operands.) This was partly vibe coded (https://github.com/supersven/ghc/pull/1) but then heavily refactored. - - - - - a62ce115 by Andreas Klebinger at 2025-09-19T18:26:18-04:00 Tweak jspace test I've given it a longer timeout, and tweaked the test file generation to speed it up a bit. Hopefully that is enough to make it constentily pass. Last but not least it now also always uses three threads. - - - - - 0f034942 by Cheng Shao at 2025-09-19T18:26:59-04:00 rts: remove obsolete CC_SUPPORTS_TLS logic This patch removes obsolete CC_SUPPORTS_TLS logic throughout the rts, given __thread is now uniformly supported by C toolchains of all platforms we currently support. - - - - - ef705655 by Cheng Shao at 2025-09-19T18:27:41-04:00 rts: remove obsolete HAS_VISIBILITY_HIDDEN logic This patch removes obsolete HAS_VISIBILITY_HIDDEN logic throughout the rts, given __attribute__((visibility("hidden"))) is uniformly supported by C toolchains of all platforms we currently support. - - - - - 9fdc1f7d by Cheng Shao at 2025-09-19T18:28:21-04:00 rts: remove -O3 pragma hack in Hash.c This patch removes an obsolete gcc pragma to specify -O3 in Hash.c. Hadrian already passes the right flag. - - - - - b8cfa8f7 by Cheng Shao at 2025-09-19T18:29:01-04:00 rts: remove obsolete COMPILING_WINDOWS_DLL logic This patch removes obsolete COMPILING_WINDOWS_DLL logic throughout the rts. They were once used for compiling to win32 DLLs, but we haven't been able to compile Haskell units to win32 DLLs for many years now, due to PE format's restriction of no more than 65536 exported symbols in a single DLL. - - - - - bb760611 by Cheng Shao at 2025-09-19T18:29:42-04:00 wasm: bump browser_wasi_shim to 0.4.2 This patch bumps the browser_wasi_shim dependency of wasm dyld script to 0.4.2. - - - - - 8b0940db by Cheng Shao at 2025-09-20T06:48:05-04:00 compiler: move Binary instance of Map to GHC.Utils.Binary This patch moves `Binary` instance of `Map` from `haddock-api` to `GHC.Utils.Binary`. This also allows us to remove a redundant instance defined for `NameEntityInfo`, which is a type synonym for `Map`. - - - - - 4a8fed75 by Vladislav Zavialov at 2025-09-20T06:48:47-04:00 Fix keyword in ExplicitNamespaces error message (#26418) Consider this module header and the resulting error: {-# LANGUAGE NoExplicitNamespaces #-} module T26418 (data HeadC) where -- error: [GHC-47007] -- Illegal keyword 'type' Previously, the error message would mention 'type' (as shown above), even though the user wrote 'data'. This has now been fixed. The error location has also been corrected: it is now reported at the keyword position rather than at the position of the associated import/export item. - - - - - 867c2675 by Cheng Shao at 2025-09-20T06:49:28-04:00 wasm: fix dyld handling for forward declared GOT.func items This patch fixes wasm shared linker's handling of forward declared GOT.func items, see linked issue for details. Also adds T26430 test to witness the fix. Fixes #26430. Co-authored-by: Codex <codex(a)openai.com> - - - - - ef72f85b by Alex Washburn at 2025-09-23T12:30:42+00:00 Correcting LLVM linking of Intel BMI intrinsics pdep{8,16} and pext{8,16}. This patch fixes #26065. The LLVM interface does not expose bindings to: - llvm.x86.bmi.pdep.8 - llvm.x86.bmi.pdep.16 - llvm.x86.bmi.pext.8 - llvm.x86.bmi.pext.16 So calls are instead made to llvm.x86.bmi.{pdep,pext}.32 in these cases, with pre/post-operation truncation to constrain the logical value range. - - - - - 293 changed files: - .gitlab-ci.yml - .gitlab/generate-ci/gen_ci.hs - .gitlab/jobs.yaml - .gitlab/rel_eng/fetch-gitlab-artifacts/fetch_gitlab.py - .gitlab/rel_eng/mk-ghcup-metadata/mk_ghcup_metadata.py - compiler/GHC/Builtin/Uniques.hs - compiler/GHC/Builtin/primops.txt.pp - compiler/GHC/Cmm/Utils.hs - compiler/GHC/CmmToLlvm/CodeGen.hs - compiler/GHC/Driver/DynFlags.hs - compiler/GHC/Driver/Session.hs - compiler/GHC/HsToCore/Binds.hs - compiler/GHC/HsToCore/Monad.hs - compiler/GHC/Iface/Errors/Ppr.hs - compiler/GHC/Iface/Ext/Types.hs - compiler/GHC/Parser.y - compiler/GHC/Parser/Errors/Ppr.hs - compiler/GHC/Parser/Errors/Types.hs - compiler/GHC/Parser/PostProcess.hs - compiler/GHC/Parser/Types.hs - compiler/GHC/Rename/Env.hs - compiler/GHC/Rename/Pat.hs - compiler/GHC/Runtime/Heap/Inspect.hs - compiler/GHC/Settings.hs - compiler/GHC/Settings/IO.hs - compiler/GHC/Stg/Unarise.hs - compiler/GHC/StgToByteCode.hs - compiler/GHC/StgToCmm/DataCon.hs - compiler/GHC/StgToCmm/Layout.hs - compiler/GHC/SysTools/BaseDir.hs - compiler/GHC/Tc/Deriv/Utils.hs - compiler/GHC/Tc/Errors/Ppr.hs - compiler/GHC/Tc/Gen/Expr.hs - compiler/GHC/Tc/Gen/Sig.hs - compiler/GHC/Tc/Module.hs - compiler/GHC/Tc/Solver.hs - compiler/GHC/Tc/Solver/Default.hs - compiler/GHC/Tc/Solver/Dict.hs - compiler/GHC/Tc/Solver/Equality.hs - compiler/GHC/Tc/Solver/InertSet.hs - compiler/GHC/Tc/Solver/Monad.hs - compiler/GHC/Tc/Solver/Solve.hs - compiler/GHC/Tc/Solver/Solve.hs-boot - compiler/GHC/Tc/Types/Constraint.hs - compiler/GHC/Tc/Types/Evidence.hs - compiler/GHC/Tc/Types/Origin.hs - compiler/GHC/Tc/Utils/Monad.hs - compiler/GHC/Tc/Zonk/TcType.hs - compiler/GHC/Tc/Zonk/Type.hs - compiler/GHC/Types/RepType.hs - compiler/GHC/Types/Unique.hs - 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utils/haddock/hypsrc-test/ref/src/Types.html - utils/haddock/hypsrc-test/ref/src/UsingQuasiquotes.html - utils/jsffi/dyld.mjs The diff was not included because it is too large. View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/d97f54f22d60acb8bb869f589676f6… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/d97f54f22d60acb8bb869f589676f6… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][ghc-9.10] Update release-notes.rst (#26413)
by Zubin (＠wz1000) 23 Sep '25

23 Sep '25

Zubin pushed to branch ghc-9.10 at Glasgow Haskell Compiler / GHC Commits: e37757cf by Zubin Duggal at 2025-09-23T17:12:04+05:30 Update release-notes.rst (#26413) - - - - - 1 changed file: - docs/users_guide/release-notes.rst Changes: ===================================== docs/users_guide/release-notes.rst ===================================== @@ -6,3 +6,4 @@ Release notes 9.10.1-notes 9.10.2-notes + 9.10.3-notes View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/e37757cfa18c80143e32cbedf15a50b… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/e37757cfa18c80143e32cbedf15a50b… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc][wip/26264] 35 commits: Add 'Outputable Natural' instance
by Zubin (＠wz1000) 23 Sep '25

23 Sep '25

Zubin pushed to branch wip/26264 at Glasgow Haskell Compiler / GHC Commits: ac5859b9 by sheaf at 2025-09-16T14:58:38-04:00 Add 'Outputable Natural' instance This commit adds an Outputable instance for the Natural natural-number type, as well as a "natural :: Natural -> SDoc" function that mirrors the existing "integer" function. - - - - - d48ebc23 by Cheng Shao at 2025-09-16T14:59:18-04:00 autoconf: emit warning instead of error for FIND_PYTHON logic This patch makes FIND_PYTHON logic emit warning instead of error, so when the user doesn't expect to run the testsuite driver (especially when installing a bindist), python would not be mandatory. Fixes #26347. - - - - - 54b5950e by Sylvain Henry at 2025-09-17T04:45:18-04:00 Print fully qualified unit names in name mismatch It's more user-friendly to directly print the right thing instead of requiring the user to retry with the additional `-dppr-debug` flag. - - - - - 403cb665 by Ben Gamari at 2025-09-17T04:46:00-04:00 configure: Fix consistency between distrib and source CC check Previously distrib/configure.ac did not include `cc`. Closes #26394. - - - - - 2dcd4cb9 by Oleg Grenrus at 2025-09-17T04:46:41-04:00 Use isPrint in showUnique The comment say ``` -- Avoid emitting non-printable characters in pretty uniques. See #25989. ``` so let the code do exactly that. There are tags (at least : and 0 .. 9) which weren't in A .. z range. - - - - - e5dd754b by Oleg Grenrus at 2025-09-17T04:46:42-04:00 Shorten in-module links in hyperlinked source Instead of href="This.Module#ident" to just "#ident" - - - - - 63189b2c by Oleg Grenrus at 2025-09-17T04:46:42-04:00 Use showUnique in internalAnchorIdent Showing the key of Unique as a number is generally not a great idea. GHC Unique has a tag in high bits, so the raw number is unnecessarily big. So now we have ```html <a href="#l-rvgK">bar</a> ``` instead of ```html <a href="#local-6989586621679015689">bar</a> ``` Together with previous changes of shorter intra-module links the effect on compressed files is not huge, that is expected as we simply remove repetitive contents which pack well. ``` 12_694_206 Agda-2.9.0-docs-orig.tar.gz 12_566_065 Agda-2.9.0-docs.tar.gz ``` However when unpacked, the difference can be significant, e.g. Agda's largest module source got 5% reduction: ``` 14_230_117 Agda.Syntax.Parser.Parser.html 13_422_109 Agda.Syntax.Parser.Parser.html ``` The whole hyperlinked source code directory got similar reduction ``` 121M Agda-2.9.0-docs-orig/src 114M Agda-2.9.0-docs/src ``` For the reference, sources are about 2/3 of the generated haddocks ``` 178M Agda-2.9.0-docs-old 172M Agda-2.9.0-docs ``` so we get around 3.5% size reduction overall. Not bad for a small local changes. - - - - - 6f63f57b by Stefan Schulze Frielinghaus at 2025-09-17T04:47:22-04:00 rts: Fix alignment for gen_workspace #26334 After a0fa4941903272c48b050d24e93eec819eff51bd bootstrap is broken on s390x and errors out with rts/sm/GCThread.h:207:5: error: error: alignment of array elements is greater than element size 207 | gen_workspace gens[]; | ^~~~~~~~~~~~~ The alignment constraint is applied via the attribute to the type gen_workspace and leaves the underlying type struct gen_workspace_ untouched. On Aarch64, x86, and s390x the struct has a size of 128 bytes. On Aarch64 and x86 the alignments of 128 and 64 are divisors of the size, respectively, which is why the type is a viable member type for an array. However, on s390x, the alignment is 256 and therefore is not a divisor of the size and hence cannot be used for arrays. Basically I see two fixes here. Either decrease the alignment requirement on s390x, or by applying the alignment constraint on the struct itself. The former might affect performance as noted in a0fa4941903272c48b050d24e93eec819eff51bd. The latter introduces padding bits whenever necessary in order to ensure that sizeof(gen_workspace[N])==N*sizeof(gen_workspace) holds which is done by this patch. - - - - - 06d25623 by Cheng Shao at 2025-09-17T19:32:27-04:00 ghci: add :shell command This patch adds a new :shell command to ghci which works similarly to :!, except it guarantees to run the command via sh -c. On POSIX hosts the behavior is identical to :!, but on Windows it uses the msys2 shell instead of system cmd.exe shell. This is convenient when writing simple ghci scripts that run simple POSIX commands, and the behavior can be expected to be coherent on both Windows and POSIX. Co-authored-by: Codex <codex(a)openai.com> - - - - - 186054f7 by Cheng Shao at 2025-09-17T19:32:27-04:00 testsuite: remove legacy :shell trick This commit makes use of the built-in :shell functionality in ghci in the test cases, and remove the legacy :shell trick. - - - - - 0a3a4aa3 by Cheng Shao at 2025-09-17T19:32:27-04:00 docs: document :shell in ghci This commit documents the :shell command in ghci. Co-authored-by: Codex <codex(a)openai.com> - - - - - a4ff12bb by Cheng Shao at 2025-09-17T19:33:09-04:00 ghc-internal: fix codepages program codepages was not properly updated during the base -> ghc-internal migration, this commit fixes it. - - - - - 7e094def by Cheng Shao at 2025-09-17T19:33:09-04:00 ghc-internal: relax ucd2haskell cabal upper bounds This commit relaxes ucd2haskell cabal upper bounds to make it runnable via ghc 9.12/9.14. - - - - - 7077c9f7 by Cheng Shao at 2025-09-17T19:33:09-04:00 ghc-internal: update to unicode 17.0.0 This commit updates the generated code in ghc-internal to match unicode 17.0.0. - - - - - cef8938f by sheaf at 2025-09-17T19:34:09-04:00 Bad record update msg: allow out-of-scope datacons This commit ensures that, when we encounter an invalid record update (because no constructor exists which contains all of the record fields mentioned in the record update), we graciously handle the situation in which the constructors themselves are not in scope. In that case, instead of looking up the constructors in the GlobalRdrEnv, directly look up their GREInfo using the lookupGREInfo function. Fixes #26391 - - - - - a2d9d7c2 by sheaf at 2025-09-17T19:34:09-04:00 Improve Notes about disambiguating record updates This commit updates the notes [Disambiguating record updates] and [Type-directed record disambiguation], in particular adding more information about the deprecation status of type-directed disambiguation of record updates. - - - - - de44e69e by sheaf at 2025-09-19T05:16:51-04:00 Enable TcM plugins in initTc This commit ensures that we run typechecker plugins and defaulting plugins whenever we call initTc. In particular, this ensures that the pattern-match checker, which calls 'initTcDsForSolver' which calls 'initTc', runs with typechecker plugins enabled. This matters for situations like: merge :: Vec n a -> Vec n a -> Vec (2 * n) a merge Nil Nil = Nil merge (a <: as) (b <: bs) = a :< (b <: merge as bs) in which we need the typechecker plugin to run in order to tell us that the Givens would be inconsistent in the additional equation merge (_ <: _) Nil and thus that the equation is not needed. Fixes #26395 - - - - - 2c378ad2 by Cheng Shao at 2025-09-19T05:17:33-04:00 rel-eng: update fedora image to 42 This patch is a part of #25876 and updates fedora image to 42. - - - - - 0a9d9ffc by Sylvain Henry at 2025-09-19T13:12:14-04:00 Fix output of T14999 (#23685) Fix output of T14999 to: - take into account the +1 offset to DW_AT_low_pc (see Note [Info Offset]) - always use Intel's syntax to force consistency: it was reported that sometimes GDB prints `jmpq` instead of `jmp` with the AT&T syntax - - - - - 1480872a by Vladislav Zavialov at 2025-09-19T13:12:54-04:00 Fix PREP_MAYBE_LIBRARY in prep_target_file.m4 This change fixes a configure error introduced in: commit 8235dd8c4945db9cb03e3be3c388d729d576ed1e ghc-toolchain: Move UseLibdw to per-Target file Now the build no longer fails with: acghc-toolchain: Failed to read a valid Target value from hadrian/cfg/default.target - - - - - d1d9e39e by Ben Gamari at 2025-09-19T18:24:52-04:00 StgToByteCode: Don't assume that data con workers are nullary Previously StgToByteCode assumed that all data-con workers were of a nullary representation. This is not a valid assumption, as seen in #23210, where an unsaturated application of a unary data constructor's worker resulted in invalid bytecode. Sadly, I have not yet been able to reduce a minimal testcase for this. Fixes #23210. - - - - - 3eeecd50 by Ben Gamari at 2025-09-19T18:24:53-04:00 testsuite: Mark T23146* as unbroken - - - - - 2e73f342 by sheaf at 2025-09-19T18:24:53-04:00 Add test for #26216 - - - - - c2efb912 by Sven Tennie at 2025-09-19T18:25:36-04:00 Generate correct test header This increases convenience when copying & pasting... - - - - - d2fb811e by Sven Tennie at 2025-09-19T18:25:36-04:00 foundation test: Fix shift amount (#26248) Shift primops' results are only defined for shift amounts of 0 to word size - 1. The approach is similar to testing div-like operations (which have a constraint regarding zero operands.) This was partly vibe coded (https://github.com/supersven/ghc/pull/1) but then heavily refactored. - - - - - a62ce115 by Andreas Klebinger at 2025-09-19T18:26:18-04:00 Tweak jspace test I've given it a longer timeout, and tweaked the test file generation to speed it up a bit. Hopefully that is enough to make it constentily pass. Last but not least it now also always uses three threads. - - - - - 0f034942 by Cheng Shao at 2025-09-19T18:26:59-04:00 rts: remove obsolete CC_SUPPORTS_TLS logic This patch removes obsolete CC_SUPPORTS_TLS logic throughout the rts, given __thread is now uniformly supported by C toolchains of all platforms we currently support. - - - - - ef705655 by Cheng Shao at 2025-09-19T18:27:41-04:00 rts: remove obsolete HAS_VISIBILITY_HIDDEN logic This patch removes obsolete HAS_VISIBILITY_HIDDEN logic throughout the rts, given __attribute__((visibility("hidden"))) is uniformly supported by C toolchains of all platforms we currently support. - - - - - 9fdc1f7d by Cheng Shao at 2025-09-19T18:28:21-04:00 rts: remove -O3 pragma hack in Hash.c This patch removes an obsolete gcc pragma to specify -O3 in Hash.c. Hadrian already passes the right flag. - - - - - b8cfa8f7 by Cheng Shao at 2025-09-19T18:29:01-04:00 rts: remove obsolete COMPILING_WINDOWS_DLL logic This patch removes obsolete COMPILING_WINDOWS_DLL logic throughout the rts. They were once used for compiling to win32 DLLs, but we haven't been able to compile Haskell units to win32 DLLs for many years now, due to PE format's restriction of no more than 65536 exported symbols in a single DLL. - - - - - bb760611 by Cheng Shao at 2025-09-19T18:29:42-04:00 wasm: bump browser_wasi_shim to 0.4.2 This patch bumps the browser_wasi_shim dependency of wasm dyld script to 0.4.2. - - - - - 8b0940db by Cheng Shao at 2025-09-20T06:48:05-04:00 compiler: move Binary instance of Map to GHC.Utils.Binary This patch moves `Binary` instance of `Map` from `haddock-api` to `GHC.Utils.Binary`. This also allows us to remove a redundant instance defined for `NameEntityInfo`, which is a type synonym for `Map`. - - - - - 4a8fed75 by Vladislav Zavialov at 2025-09-20T06:48:47-04:00 Fix keyword in ExplicitNamespaces error message (#26418) Consider this module header and the resulting error: {-# LANGUAGE NoExplicitNamespaces #-} module T26418 (data HeadC) where -- error: [GHC-47007] -- Illegal keyword 'type' Previously, the error message would mention 'type' (as shown above), even though the user wrote 'data'. This has now been fixed. The error location has also been corrected: it is now reported at the keyword position rather than at the position of the associated import/export item. - - - - - 867c2675 by Cheng Shao at 2025-09-20T06:49:28-04:00 wasm: fix dyld handling for forward declared GOT.func items This patch fixes wasm shared linker's handling of forward declared GOT.func items, see linked issue for details. Also adds T26430 test to witness the fix. Fixes #26430. Co-authored-by: Codex <codex(a)openai.com> - - - - - d69994f2 by Zubin Duggal at 2025-09-23T17:10:31+05:30 compiler: Attempt to systematize Unique tags by introducing an ADT for each different tag Fixes #26264 - - - - - 183 changed files: - .gitlab-ci.yml - .gitlab/generate-ci/gen_ci.hs - .gitlab/jobs.yaml - .gitlab/rel_eng/fetch-gitlab-artifacts/fetch_gitlab.py - .gitlab/rel_eng/mk-ghcup-metadata/mk_ghcup_metadata.py - compiler/GHC/Builtin/Uniques.hs - compiler/GHC/Builtin/primops.txt.pp - compiler/GHC/Cmm/Info.hs - compiler/GHC/Cmm/Info/Build.hs - compiler/GHC/Cmm/Pipeline.hs - compiler/GHC/Cmm/UniqueRenamer.hs - compiler/GHC/CmmToLlvm/Base.hs - compiler/GHC/Core/Opt/Monad.hs - compiler/GHC/Core/Opt/Pipeline.hs - compiler/GHC/Core/Opt/Simplify/Monad.hs - compiler/GHC/CoreToStg/Prep.hs - compiler/GHC/Driver/CodeOutput.hs - compiler/GHC/Driver/Main.hs - compiler/GHC/HsToCore/Foreign/JavaScript.hs - compiler/GHC/HsToCore/Monad.hs - compiler/GHC/Iface/Binary.hs - compiler/GHC/Iface/Errors/Ppr.hs - 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View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/bb177f2c8876cbc66f8d98f9ecf08d… -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/bb177f2c8876cbc66f8d98f9ecf08d… You're receiving this email because of your account on gitlab.haskell.org.

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[Git][ghc/ghc] Pushed new branch wip/fix-9123-bootstrap
by Cheng Shao (＠TerrorJack) 23 Sep '25

23 Sep '25

Cheng Shao pushed new branch wip/fix-9123-bootstrap at Glasgow Haskell Compiler / GHC -- View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/tree/wip/fix-9123-bootstrap You're receiving this email because of your account on gitlab.haskell.org.

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