[Git][ghc/ghc][wip/14554-wasm-fix] Deleted 1 commit: ghc-toolchain: Make "Support SMP" a query on a Toolchain.Target
by Cheng Shao (＠TerrorJack) 23 Aug '25
by Cheng Shao (＠TerrorJack) 23 Aug '25
23 Aug '25
Cheng Shao pushed to branch wip/14554-wasm-fix at Glasgow Haskell Compiler / GHC
WARNING: The push did not contain any new commits, but force pushed to delete the commits and changes below.
Deleted commits:
da99e918 by Rodrigo Mesquita at 2025-08-23T19:21:31+02:00
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
- - - - -
5 changed files:
- compiler/GHC/Driver/Session.hs
- hadrian/bindist/Makefile
- hadrian/src/Oracles/Flag.hs
- hadrian/src/Rules/Generate.hs
- utils/ghc-toolchain/src/GHC/Toolchain/Target.hs
Changes:
=====================================
compiler/GHC/Driver/Session.hs
=====================================
@@ -3547,6 +3547,7 @@ compilerInfo dflags
-- If true, we require that the 'id' field in installed package info
-- match what is passed to the @-this-unit-id@ flag for modules
-- built in it
+ ("Support SMP", queryBool tgtSupportsSMP),
("Requires unified installed package IDs", "YES"),
-- Whether or not we support the @-this-package-key@ flag. Prefer
-- "Uses unit IDs" over it. We still say yes even if @-this-package-key@
=====================================
hadrian/bindist/Makefile
=====================================
@@ -88,7 +88,6 @@ lib/settings : config.mk
@echo '[("unlit command", "$$topdir/../bin/$(CrossCompilePrefix)unlit")' >> $@
@echo ',("target RTS linker only supports shared libraries", "$(TargetRTSLinkerOnlySupportsSharedLibs)")' >> $@
@echo ',("Use interpreter", "$(GhcWithInterpreter)")' >> $@
- @echo ',("Support SMP", "$(GhcWithSMP)")' >> $@
@echo ',("RTS ways", "$(GhcRTSWays)")' >> $@
@echo ',("Relative Global Package DB", "package.conf.d")' >> $@
@echo ',("base unit-id", "$(BaseUnitId)")' >> $@
=====================================
hadrian/src/Oracles/Flag.hs
=====================================
@@ -121,27 +121,7 @@ targetSupportsThreadedRts = do
-- | Does the target support the -N RTS flag?
targetSupportsSMP :: Action Bool
-targetSupportsSMP = do
- unreg <- queryTargetTarget tgtUnregisterised
- armVer <- targetArmVersion
- goodArch <- (||) <$>
- anyTargetArch [ ArchX86
- , ArchX86_64
- , ArchPPC
- , ArchPPC_64 ELF_V1
- , ArchPPC_64 ELF_V2
- , ArchAArch64
- , ArchS390X
- , ArchRISCV64
- , ArchLoongArch64 ] <*> isArmTarget
- if -- The THREADED_RTS requires `BaseReg` to be in a register and the
- -- Unregisterised mode doesn't allow that.
- | unreg -> return False
- -- We don't support load/store barriers pre-ARMv7. See #10433.
- | Just ver <- armVer
- , ver < ARMv7 -> return False
- | goodArch -> return True
- | otherwise -> return False
+targetSupportsSMP = queryTargetTarget Toolchain.tgtSupportsSMP
useLibffiForAdjustors :: Action Bool
useLibffiForAdjustors = queryTargetTarget tgtUseLibffiForAdjustors
=====================================
hadrian/src/Rules/Generate.hs
=====================================
@@ -486,7 +486,6 @@ generateSettings settingsFile = do
[ ("unlit command", ("$topdir/../bin/" <>) <$> expr (programName (ctx { Context.package = unlit })))
, ("target RTS linker only supports shared libraries", expr $ yesNo <$> targetRTSLinkerOnlySupportsSharedLibs)
, ("Use interpreter", expr $ yesNo <$> ghcWithInterpreter (predStage stage))
- , ("Support SMP", expr $ yesNo <$> targetSupportsSMP)
, ("RTS ways", escapeArgs . map show . Set.toList <$> getRtsWays)
, ("Relative Global Package DB", pure rel_pkg_db)
, ("base unit-id", pure base_unit_id)
=====================================
utils/ghc-toolchain/src/GHC/Toolchain/Target.hs
=====================================
@@ -1,5 +1,6 @@
{-# LANGUAGE RecordWildCards #-}
{-# LANGUAGE NamedFieldPuns #-}
+{-# LANGUAGE MultiWayIf #-}
module GHC.Toolchain.Target
(
-- * A Toolchain Target
@@ -7,6 +8,9 @@ module GHC.Toolchain.Target
, WordSize(..), wordSize2Bytes
+ -- ** Queries
+ , tgtSupportsSMP
+
-- ** Lenses
, _tgtCC, _tgtCxx, _tgtCpp, _tgtHsCpp
@@ -151,6 +155,34 @@ instance Show Target where
, "}"
]
+--------------------------------------------------------------------------------
+-- Queries
+--------------------------------------------------------------------------------
+
+tgtSupportsSMP :: Target -> Bool
+tgtSupportsSMP Target{..} = do
+ let goodArch =
+ isARM (archOS_arch tgtArchOs)
+ || archOS_arch tgtArchOs `elem`
+ [ ArchX86
+ , ArchX86_64
+ , ArchPPC
+ , ArchPPC_64 ELF_V1
+ , ArchPPC_64 ELF_V2
+ , ArchAArch64
+ , ArchS390X
+ , ArchRISCV64
+ , ArchLoongArch64 ]
+
+ if -- The THREADED_RTS requires `BaseReg` to be in a register and the
+ -- Unregisterised mode doesn't allow that.
+ | tgtUnregisterised -> False
+ -- We don't support load/store barriers pre-ARMv7. See #10433.
+ | ArchARM ver _ _ <- archOS_arch tgtArchOs
+ , ver < ARMv7 -> False
+ | goodArch -> True
+ | otherwise -> False
+
--------------------------------------------------------------------------------
-- Lenses
--------------------------------------------------------------------------------
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Simon Peyton Jones pushed to branch wip/T26255 at Glasgow Haskell Compiler / GHC
Commits:
745cae95 by Simon Peyton Jones at 2025-08-23T23:31:48+01:00
More wibbles
- - - - -
3 changed files:
- compiler/GHC/Tc/Errors.hs
- testsuite/tests/typecheck/should_fail/T18851.hs
- testsuite/tests/typecheck/should_fail/UnliftedNewtypesFamilyKindFail2.stderr
Changes:
=====================================
compiler/GHC/Tc/Errors.hs
=====================================
@@ -443,7 +443,6 @@ ignoreConstraint :: Ct -> Bool
ignoreConstraint ct
= case ctOrigin ct of
AssocFamPatOrigin -> True -- See (CIG1)
- WantedSuperclassOrigin {} -> True -- See (CIG2)
_ -> False
-- | Makes an error item from a constraint, calculating whether or not
@@ -540,7 +539,7 @@ reportWanteds ctxt tc_lvl wc@(WC { wc_simple = simples, wc_impl = implics
; when (null simples) $ reportMultiplicityCoercionErrs ctxt_for_insols mult_co_errs
-- See Note [Suppressing confusing errors]
- ; let (suppressed_items, items0) = partition suppress tidy_items
+ ; let (suppressed_items, items0) = partition suppressItem tidy_items
; traceTc "reportWanteds suppressed:" (ppr suppressed_items)
; (ctxt1, items1) <- tryReporters ctxt_for_insols report1 items0
@@ -548,7 +547,7 @@ reportWanteds ctxt tc_lvl wc@(WC { wc_simple = simples, wc_impl = implics
-- any of the first batch failed, or if the enclosing context
-- says to suppress
; let ctxt2 = ctxt1 { cec_suppress = cec_suppress ctxt || cec_suppress ctxt1 }
- ; (ctxt3, leftovers) <- tryReporters ctxt2 report2 items1
+ ; (_, leftovers) <- tryReporters ctxt2 report2 items1
; massertPpr (null leftovers)
(text "The following unsolved Wanted constraints \
\have not been reported to the user:"
@@ -559,12 +558,15 @@ reportWanteds ctxt tc_lvl wc@(WC { wc_simple = simples, wc_impl = implics
-- wanted insoluble here; but do suppress inner insolubles
-- if there's a *given* insoluble here (= inaccessible code)
- -- Only now, if there are no errors, do we report suppressed ones
- -- See Note [Suppressing confusing errors]
- -- We don't need to update the context further because of the
- -- whenNoErrs guard
+ -- Only now, if there are no errors, do we report suppressed ones
+ -- See Note [Suppressing confusing errors]. We don't need to update
+ -- the context further because of the whenNoErrs guard
; whenNoErrs $
- do { (_, more_leftovers) <- tryReporters ctxt3 report3 suppressed_items
+ do { (_, more_leftovers) <- tryReporters ctxt_for_insols (report1++report2)
+ suppressed_items
+ -- ctxt_for_insols: the suppressed errors can be Int~Bool, which
+ -- will have made the incoming `ctxt` be True; don't make that suppress
+ -- the Int~Bool error!
; massertPpr (null more_leftovers) (ppr more_leftovers) } }
where
env = cec_tidy ctxt
@@ -587,14 +589,6 @@ reportWanteds ctxt tc_lvl wc@(WC { wc_simple = simples, wc_impl = implics
DE_Multiplicity mult_co loc
-> (es1, es2, es3, (mult_co, loc):es4)
- -- See Note [Suppressing confusing errors]
- suppress :: ErrorItem -> Bool
- suppress item
- | Wanted <- ei_flavour item
- = is_ww_fundep_item item
- | otherwise
- = False
-
-- report1: ones that should *not* be suppressed by
-- an insoluble somewhere else in the tree
-- It's crucial that anything that is considered insoluble
@@ -656,11 +650,6 @@ reportWanteds ctxt tc_lvl wc@(WC { wc_simple = simples, wc_impl = implics
, ("Dicts", is_dict, False, mkGroupReporter mkDictErr)
, ("Quantified", is_qc, False, mkGroupReporter mkQCErr) ]
- -- report3: suppressed errors should be reported as categorized by either report1
- -- or report2. Keep this in sync with the suppress function above
- report3 = [ ("wanted/wanted fundeps", is_ww_fundep, True, mkGroupReporter mkEqErr)
- ]
-
-- rigid_nom_eq, rigid_nom_tv_eq,
is_dict, is_equality, is_ip, is_FRR, is_irred :: ErrorItem -> Pred -> Bool
@@ -728,10 +717,6 @@ reportWanteds ctxt tc_lvl wc@(WC { wc_simple = simples, wc_impl = implics
is_qc _ (ForAllPred {}) = True
is_qc _ _ = False
- -- See situation (1) of Note [Suppressing confusing errors]
- is_ww_fundep item _ = is_ww_fundep_item item
- is_ww_fundep_item = isWantedWantedFunDepOrigin . errorItemOrigin
-
given_eq_spec -- See Note [Given errors]
| has_gadt_match_here
= ("insoluble1a", is_given_eq, True, mkGivenErrorReporter)
@@ -757,6 +742,16 @@ reportWanteds ctxt tc_lvl wc@(WC { wc_simple = simples, wc_impl = implics
= has_gadt_match implics
---------------
+suppressItem :: ErrorItem -> Bool
+ -- See Note [Suppressing confusing errors]
+suppressItem item
+ | Wanted <- ei_flavour item
+ , let orig = errorItemOrigin item
+ = isWantedSuperclassOrigin orig -- See (SCE1)
+ || isWantedWantedFunDepOrigin orig -- See (SCE2)
+ | otherwise
+ = False
+
isSkolemTy :: TcLevel -> Type -> Bool
-- The type is a skolem tyvar
isSkolemTy tc_lvl ty
@@ -781,7 +776,23 @@ If there are any other errors to report, at all, we want to suppress these.
Which errors (only 1 case right now):
-1) Errors which arise from the interaction of two Wanted fun-dep constraints.
+(SCE1) Superclasses of Wanteds. These are generated on in case they trigger functional
+ dependencies. If such a constraint is unsolved, then its "parent" constraint must
+ also be unsolved, and is much more informative to the user. Example (#26255):
+ class (MinVersion <= F era) => Era era where { ... }
+ f :: forall era. EraFamily era -> IO ()
+ f = ..blah... -- [W] Era era
+ Here we have simply omitted "Era era =>" from f's type. But we'll end up with
+ /two/ Wanted constraints:
+ [W] d1 : Era era
+ [W] d2 : MinVersion <= F era -- Superclass of d1
+ We definitely want to report d1 and not d2! Happily it's easy to filter out those
+ superclass-Wanteds, becuase their Origin betrays them.
+
+ See test T18851 for an example of how it is (just, barely) possible for the /only/
+ errors to be superclass-of-Wanted constraints.
+
+(SCE2) Errors which arise from the interaction of two Wanted fun-dep constraints.
Example:
class C a b | a -> b where
@@ -852,18 +863,8 @@ Currently, the constraints to ignore are:
If there is any trouble, checkValidFamInst bleats, aborting compilation.
-(CIG2) Superclasses of Wanteds. These are generated on in case they trigger functional
- dependencies. If such a constraint is unsolved, then its "parent" constraint must
- also be unsolved, and is much more informative to the user. Example (#26255):
- class (MinVersion <= F era) => Era era where { ... }
- f :: forall era. EraFamily era -> IO ()
- f = ..blah... -- [W] Era era
- Here we have simply omitted "Era era =>" from f's type. But we'll end up with
- /two/ Wanted constraints:
- [W] d1 : Era era
- [W] d2 : MinVersion <= F era -- Superclass of d1
- We definitely want to report d1 and not d2! Happily it's easy to filter out those
- superclass-Wanteds, becuase their Origin betrays them.
+(Note: Aug 25: this seems a rather tricky corner;
+ c.f. Note [Suppressing confusing errors])
Note [Implementation of Unsatisfiable constraints]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
=====================================
testsuite/tests/typecheck/should_fail/T18851.hs
=====================================
@@ -33,3 +33,14 @@ f = show (undefined :: c)
-- blows up at run time once type checks
g :: String
g = f @A @B
+
+{-
+[W] Show c, Num int, C int A, C int B, C int c
+Superclasses
+ C_FD int ~ A
+ C_FD int ~ B
+ C_FD int ~ c
+-->
+ C_FD int ~ B
+ B ~ A
+-}
=====================================
testsuite/tests/typecheck/should_fail/UnliftedNewtypesFamilyKindFail2.stderr
=====================================
@@ -1,3 +1,7 @@
+UnliftedNewtypesFamilyKindFail2.hs:12:1: error: [GHC-83865]
+ • Expected a type, but ‘F 5’ has kind ‘5’
+ • In the newtype family instance declaration for ‘F’
+
UnliftedNewtypesFamilyKindFail2.hs:12:20: error: [GHC-83865]
• Expected a type,
but ‘5’ has kind
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[Git][ghc/ghc][wip/14554-wasm-fix] Deleted 1 commit: ghc-toolchain: Make "tgt rts linker only supports shared libs" function on Target
by Cheng Shao (＠TerrorJack) 23 Aug '25
by Cheng Shao (＠TerrorJack) 23 Aug '25
23 Aug '25
Cheng Shao pushed to branch wip/14554-wasm-fix at Glasgow Haskell Compiler / GHC
WARNING: The push did not contain any new commits, but force pushed to delete the commits and changes below.
Deleted commits:
f6d63a45 by Rodrigo Mesquita at 2025-08-23T19:21:31+02:00
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
- - - - -
6 changed files:
- compiler/GHC/Driver/Session.hs
- compiler/GHC/Settings/IO.hs
- hadrian/bindist/Makefile
- hadrian/src/Oracles/Flag.hs
- hadrian/src/Rules/Generate.hs
- utils/ghc-toolchain/src/GHC/Toolchain/Target.hs
Changes:
=====================================
compiler/GHC/Driver/Session.hs
=====================================
@@ -3502,6 +3502,7 @@ compilerInfo dflags
("target has libm", queryBool tgtHasLibm),
("target has .ident directive", queryBool tgtSupportsIdentDirective),
("target has subsections via symbols", queryBool tgtSupportsSubsectionsViaSymbols),
+ ("target RTS linker only supports shared libraries", queryBool tgtRTSLinkerOnlySupportsSharedLibs),
("Unregisterised", queryBool tgtUnregisterised),
("LLVM target", query tgtLlvmTarget),
("LLVM llc command", queryCmdMaybe id tgtLlc),
=====================================
compiler/GHC/Settings/IO.hs
=====================================
@@ -146,7 +146,6 @@ initSettings top_dir = do
pure (ld_r_path, map Option ld_r_args)
iserv_prog = libexec "ghc-iserv"
- targetRTSLinkerOnlySupportsSharedLibs <- getBooleanSetting "target RTS linker only supports shared libraries"
ghcWithInterpreter <- getBooleanSetting "Use interpreter"
baseUnitId <- getSetting_raw "base unit-id"
@@ -231,7 +230,7 @@ initSettings top_dir = do
, platformMisc_ghcWithInterpreter = ghcWithInterpreter
, platformMisc_libFFI = tgtUseLibffiForAdjustors target
, platformMisc_llvmTarget = tgtLlvmTarget target
- , platformMisc_targetRTSLinkerOnlySupportsSharedLibs = targetRTSLinkerOnlySupportsSharedLibs
+ , platformMisc_targetRTSLinkerOnlySupportsSharedLibs = tgtRTSLinkerOnlySupportsSharedLibs target
}
, sRawSettings = settingsList
=====================================
hadrian/bindist/Makefile
=====================================
@@ -86,7 +86,6 @@ WrapperBinsDir=${bindir}
lib/settings : config.mk
@rm -f $@
@echo '[("unlit command", "$$topdir/../bin/$(CrossCompilePrefix)unlit")' >> $@
- @echo ',("target RTS linker only supports shared libraries", "$(TargetRTSLinkerOnlySupportsSharedLibs)")' >> $@
@echo ',("Use interpreter", "$(GhcWithInterpreter)")' >> $@
@echo ',("RTS ways", "$(GhcRTSWays)")' >> $@
@echo ',("Relative Global Package DB", "package.conf.d")' >> $@
=====================================
hadrian/src/Oracles/Flag.hs
=====================================
@@ -80,23 +80,8 @@ platformSupportsGhciObjects = do
only_shared_libs <- targetRTSLinkerOnlySupportsSharedLibs
pure $ has_merge_objs && not only_shared_libs
--- | Does the target RTS linker only support loading shared libraries?
--- If true, this has several implications:
--- 1. The GHC driver must not do loadArchive/loadObj etc and must
--- always do loadDLL, regardless of whether host GHC is dynamic or
--- not.
--- 2. The GHC driver will always enable -dynamic-too when compiling
--- vanilla way with TH codegen requirement.
--- 3. ghci will always enforce dynamic ways even if -dynamic or
--- -dynamic-too is not explicitly passed.
--- 4. Cabal must not build ghci objects since it's not supported by
--- the target.
--- 5. The testsuite driver will use dyn way for TH/ghci tests even
--- when host GHC is static.
--- 6. TH/ghci doesn't work if stage1 is built without shared libraries
--- (e.g. quickest/fully_static).
targetRTSLinkerOnlySupportsSharedLibs :: Action Bool
-targetRTSLinkerOnlySupportsSharedLibs = anyTargetArch [ ArchWasm32 ]
+targetRTSLinkerOnlySupportsSharedLibs = queryTargetTarget Toolchain.tgtRTSLinkerOnlySupportsSharedLibs
arSupportsDashL :: Stage -> Action Bool
arSupportsDashL stage = Toolchain.arSupportsDashL . tgtAr <$> targetStage stage
=====================================
hadrian/src/Rules/Generate.hs
=====================================
@@ -484,7 +484,6 @@ generateSettings settingsFile = do
settings <- traverse sequence $
[ ("unlit command", ("$topdir/../bin/" <>) <$> expr (programName (ctx { Context.package = unlit })))
- , ("target RTS linker only supports shared libraries", expr $ yesNo <$> targetRTSLinkerOnlySupportsSharedLibs)
, ("Use interpreter", expr $ yesNo <$> ghcWithInterpreter (predStage stage))
, ("RTS ways", escapeArgs . map show . Set.toList <$> getRtsWays)
, ("Relative Global Package DB", pure rel_pkg_db)
=====================================
utils/ghc-toolchain/src/GHC/Toolchain/Target.hs
=====================================
@@ -9,7 +9,7 @@ module GHC.Toolchain.Target
, WordSize(..), wordSize2Bytes
-- ** Queries
- , tgtSupportsSMP
+ , tgtSupportsSMP, tgtRTSLinkerOnlySupportsSharedLibs
-- ** Lenses
, _tgtCC, _tgtCxx, _tgtCpp, _tgtHsCpp
@@ -183,6 +183,26 @@ tgtSupportsSMP Target{..} = do
| goodArch -> True
| otherwise -> False
+-- | Does the target RTS linker only support loading shared libraries?
+-- If true, this has several implications:
+-- 1. The GHC driver must not do loadArchive/loadObj etc and must
+-- always do loadDLL, regardless of whether host GHC is dynamic or
+-- not.
+-- 2. The GHC driver will always enable -dynamic-too when compiling
+-- vanilla way with TH codegen requirement.
+-- 3. ghci will always enforce dynamic ways even if -dynamic or
+-- -dynamic-too is not explicitly passed.
+-- 4. Cabal must not build ghci objects since it's not supported by
+-- the target.
+-- 5. The testsuite driver will use dyn way for TH/ghci tests even
+-- when host GHC is static.
+-- 6. TH/ghci doesn't work if stage1 is built without shared libraries
+-- (e.g. quickest/fully_static).
+tgtRTSLinkerOnlySupportsSharedLibs :: Target -> Bool
+tgtRTSLinkerOnlySupportsSharedLibs Target{tgtArchOs} =
+ archOS_arch tgtArchOs `elem`
+ [ ArchWasm32 ]
+
--------------------------------------------------------------------------------
-- Lenses
--------------------------------------------------------------------------------
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23 Aug '25
Cheng Shao pushed new branch wip/14554-wasm-fix at Glasgow Haskell Compiler / GHC
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Cheng Shao deleted branch wip/14554-5 at Glasgow Haskell Compiler / GHC
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Simon Peyton Jones pushed to branch wip/T26255 at Glasgow Haskell Compiler / GHC
Commits:
fa3dd3c6 by Simon Peyton Jones at 2025-08-23T17:57:08+01:00
Wibble comments
- - - - -
1 changed file:
- compiler/GHC/Tc/Errors.hs
Changes:
=====================================
compiler/GHC/Tc/Errors.hs
=====================================
@@ -854,7 +854,16 @@ Currently, the constraints to ignore are:
(CIG2) Superclasses of Wanteds. These are generated on in case they trigger functional
dependencies. If such a constraint is unsolved, then its "parent" constraint must
- also be unsolved, and is much more informative to the user (#26255).
+ also be unsolved, and is much more informative to the user. Example (#26255):
+ class (MinVersion <= F era) => Era era where { ... }
+ f :: forall era. EraFamily era -> IO ()
+ f = ..blah... -- [W] Era era
+ Here we have simply omitted "Era era =>" from f's type. But we'll end up with
+ /two/ Wanted constraints:
+ [W] d1 : Era era
+ [W] d2 : MinVersion <= F era -- Superclass of d1
+ We definitely want to report d1 and not d2! Happily it's easy to filter out those
+ superclass-Wanteds, becuase their Origin betrays them.
Note [Implementation of Unsatisfiable constraints]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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23 Aug '25
Simon Peyton Jones pushed to branch wip/T26255 at Glasgow Haskell Compiler / GHC
Commits:
e2f7ce2c by Simon Peyton Jones at 2025-08-23T17:52:38+01:00
Further improvements
* Suppress all Wanted superclass constraints
* Priorities (F tys ~ rigid) over custom type errors
- - - - -
3 changed files:
- compiler/GHC/Tc/Errors.hs
- + testsuite/tests/typecheck/should_fail/T26255c.hs
- + testsuite/tests/typecheck/should_fail/T26255c.stderr
Changes:
=====================================
compiler/GHC/Tc/Errors.hs
=====================================
@@ -50,6 +50,8 @@ import GHC.Types.Name.Env
import GHC.Types.SrcLoc
import GHC.Types.Basic
import GHC.Types.Error
+import GHC.Types.Unique( hasKey )
+import GHC.Builtin.Names( errorMessageTypeErrorFamKey )
import qualified GHC.Types.Unique.Map as UM
import GHC.Unit.Module
@@ -439,10 +441,10 @@ reportBadTelescope _ _ skol_info skols
-- See Note [Constraints to ignore].
ignoreConstraint :: Ct -> Bool
ignoreConstraint ct
- | AssocFamPatOrigin <- ctOrigin ct
- = True
- | otherwise
- = False
+ = case ctOrigin ct of
+ AssocFamPatOrigin -> True -- See (CIG1)
+ WantedSuperclassOrigin {} -> True -- See (CIG2)
+ _ -> False
-- | Makes an error item from a constraint, calculating whether or not
-- the item should be suppressed. See Note [Wanteds rewrite Wanteds]
@@ -612,14 +614,14 @@ reportWanteds ctxt tc_lvl wc@(WC { wc_simple = simples, wc_impl = implics
, ("skolem eq2", skolem_eq, True, mkSkolReporter)
-- Next, family applications like (F t1 t2 ~ rigid_ty)
- -- These can be solved by doing a type-family reduction for F
+ -- These could be solved by doing a type-family reduction for F
-- which probably means fixing a unfication variable in t1/t2
-- See discussion in #26255, where F had an injectivity annotation,
-- and we had [W] F alpha ~ "foo"
-- The real error is that the "foo" should be "bar", because there is
-- type instance F Int = "bar"
- -- We could additionally filter on the injectivty annotation, but
- -- currenlty we don't.
+ -- We could additionally filter on the injectivty annotation,
+ -- but currently we don't.
, ("fam app", is_fam_app_eq, True, mkGroupReporter mkEqErr)
-- Put custom type errors after solid equality errors. In #26255 we
@@ -680,8 +682,11 @@ reportWanteds ctxt tc_lvl wc@(WC { wc_simple = simples, wc_impl = implics
is_FRR item _ = isJust $ fixedRuntimeRepOrigin_maybe item
-- Things like (F t1 t2 ~N Maybe s)
- is_fam_app_eq _ (EqPred NomEq ty1 ty2) = isJust (isSatTyFamApp ty1) && isRigidTy ty2
- is_fam_app_eq _ _ = False
+ -- But only proper type families; not (TypeError t1 t2 ~N blah)
+ is_fam_app_eq _ (EqPred NomEq ty1 ty2)
+ | Just (tc,_) <- isSatTyFamApp ty1
+ = not (tc `hasKey` errorMessageTypeErrorFamKey) && isRigidTy ty2
+ is_fam_app_eq _ _ = False
-- Things like (a ~N b) or (a ~N F Bool)
skolem_eq _ (EqPred NomEq ty1 _) = isSkolemTy tc_lvl ty1
@@ -819,7 +824,7 @@ they will remain unfilled, and might have been used to rewrite another constrain
Currently, the constraints to ignore are:
-1) Constraints generated in order to unify associated type instance parameters
+(CIG1) Constraints generated in order to unify associated type instance parameters
with class parameters. Here are two illustrative examples:
class C (a :: k) where
@@ -847,6 +852,10 @@ Currently, the constraints to ignore are:
If there is any trouble, checkValidFamInst bleats, aborting compilation.
+(CIG2) Superclasses of Wanteds. These are generated on in case they trigger functional
+ dependencies. If such a constraint is unsolved, then its "parent" constraint must
+ also be unsolved, and is much more informative to the user (#26255).
+
Note [Implementation of Unsatisfiable constraints]
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The Unsatisfiable constraint was introduced in GHC proposal #433 (https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0433-u…)
=====================================
testsuite/tests/typecheck/should_fail/T26255c.hs
=====================================
@@ -0,0 +1,30 @@
+{-# LANGUAGE DataKinds #-}
+{-# LANGUAGE FlexibleContexts #-}
+{-# LANGUAGE ScopedTypeVariables #-}
+{-# LANGUAGE TypeFamilyDependencies #-}
+{-# LANGUAGE TypeOperators #-}
+{-# LANGUAGE UndecidableSuperClasses #-}
+
+module T26255c where
+
+import Data.Kind
+import Data.Proxy
+import GHC.TypeLits
+
+type MinVersion = 1
+
+class
+ ( KnownNat (ProtVerLow era)
+ , MinVersion <= ProtVerLow era
+ ) =>
+ Era era
+ where
+ type ProtVerLow era :: Nat
+
+newtype EraFamily era = EraFamily Int
+
+class Era era => NewEra era where
+ eraFamilySize :: EraFamily era -> Int
+
+printEraFamilySize :: EraFamily era -> IO ()
+printEraFamilySize = print . eraFamilySize
=====================================
testsuite/tests/typecheck/should_fail/T26255c.stderr
=====================================
@@ -0,0 +1,11 @@
+T26255c.hs:30:30: error: [GHC-39999]
+ • No instance for ‘NewEra era’
+ arising from a use of ‘eraFamilySize’
+ Possible fix:
+ add (NewEra era) to the context of
+ the type signature for:
+ printEraFamilySize :: forall {k} (era :: k). EraFamily era -> IO ()
+ • In the second argument of ‘(.)’, namely ‘eraFamilySize’
+ In the expression: print . eraFamilySize
+ In an equation for ‘printEraFamilySize’:
+ printEraFamilySize = print . eraFamilySize
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/e2f7ce2cfeb3cd60798dfb7feb9c2b1…
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23 Aug '25
Cheng Shao pushed new branch wip/wasm-dyld-setkeepcafs at Glasgow Haskell Compiler / GHC
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[Git][ghc/ghc][wip/symbolizer] 28 commits: configure: Allow use of LLVM 20
by Cheng Shao (＠TerrorJack) 23 Aug '25
by Cheng Shao (＠TerrorJack) 23 Aug '25
23 Aug '25
Cheng Shao pushed to branch wip/symbolizer at Glasgow Haskell Compiler / GHC
Commits:
ca03226d by Ben Gamari at 2025-08-18T13:43:20+00:00
configure: Allow use of LLVM 20
- - - - -
783cd7d6 by Cheng Shao at 2025-08-18T20:13:14-04:00
compiler: use `UniqMap` instead of `Map` for `BCEnv` in bytecode compiler
The bytecode compiler maintains a `BCEnv` which was previously `Map Id
StackDepth`. Given `Id` is `Uniquable`, we might as well use `UniqMap`
here as a more efficient data structure, hence this patch.
Co-authored-by: Codex <codex(a)openai.com>
- - - - -
58e46da9 by fendor at 2025-08-18T20:13:56-04:00
rts: Strip lower three bits when hashing Word instead of lower eight bits
- - - - -
45dbfa23 by Cheng Shao at 2025-08-18T20:14:37-04:00
libffi: update to 3.5.2
Bumps libffi submodule.
- - - - -
54be78ef by Ben Gamari at 2025-08-19T16:28:05-04:00
testsuite: Fix T20006b
This test is supposed to fail for non-threaded ways yet it
was previously marked as only failing in `normal`.
Fix this.
- - - - -
f4bac607 by Simon Peyton Jones at 2025-08-19T16:28:47-04:00
Take yet more care with reporting redundant constraints
This small patch fixes #25992, which relates to reporting redundant
constraints on default-method declarations.
See (TRC5) in Note [Tracking redundant constraints]
- - - - -
ab130fec by fendor at 2025-08-19T16:29:29-04:00
Bump dependencies of hadrian-bootstrap-gen to use GHC 9.6.7
- - - - -
6d02ac6f by fendor at 2025-08-19T16:29:29-04:00
Bump required GHC version for test-bootstrap jobs to 9.10.1
Include test-bootstrap job for GHC 9.12.2.
Update hadrian bootstrap plans use GHC 9.10 and 9.12
Remove older GHC bootstrap configurations.
We require at least GHC 9.10.1 to build GHC.
Adds plans for:
* 9.10.1
* 9.10.2
* 9.12.1
* 9.12.2
- - - - -
9e857171 by Brandon Chinn at 2025-08-20T11:47:46-04:00
Don't warn unused-imports with used generated imports
Fixes #21730
* The old notion of "implicit" import has been renamed to "generated". See Note [Generated imports] in GHC.Hs.ImpExp.
* ImportMap now keeps track of generated and user-written imports separately. This avoids the fake SrcSpan we used to give the implicit Prelude import, and the hack that went with it.
* -ddump-minimal-imports now considers generated imports (but still only
warns on + prints user-written imports)
* bestImport considers generated imports to take priority over user-written imports.
- - - - -
9fb3bad4 by Ben Gamari at 2025-08-20T11:48:31-04:00
mailmap: Use ben(a)well-typed.com more liberally
Nearly all of this work was done while working for Well-Typed.
- - - - -
774fec37 by Ben Gamari at 2025-08-20T11:49:15-04:00
Add primop to annotate the call stack with arbitrary data
We introduce a new primop `annotateStack#` which allows us to push
arbitrary data onto the call-stack.
This allows us to extract the data later when decoding the stack, for
example when an exception is thrown, showing more information to the
user without having to annotate the full call-stack with `HasCallStack`
constraints.
A new stack frame value is introduced `AnnFrame`, which consists of
nothing but a generic payload.
The primop has a small wrapper API that allows users to annotate their
call-stack in programs.
There is a pure API and an IO-based one. The former is a little bit
dubious, as it affects the evaluation of a program, so use with care.
The latter is "safe", as it doesn't change the evaluation of the
program.
The stack annotation mechanism is similarly implemented to the
`ExceptionAnnotation` and `Exception`, there is a typeclass to indicate
something can be pushed onto the call-stack and all values are wrapped
in the existential `SomeStackAnnotation`, which recover the type of the
annotation payload.
There is currently no builtin way to show the stack annotations when
`Backtraces` are displayed (i.e., when showing stack traces to the user),
which we will address in a follow-up MR.
-------------------------
Metric Increase:
ghc_experimental_so
-------------------------
We increase the size of the package, so this is not unreasonable.
Co-Authored-By: fendor <fendor(a)posteo.de>
Co-Authored-By: Ben Gamari <bgamari.foss(a)gmail.com>
- - - - -
fdfa3892 by Ben Gamari at 2025-08-20T11:49:57-04:00
testsuite: Add regression test for #24606
- - - - -
39b2e382 by Cheng Shao at 2025-08-20T11:50:40-04:00
compiler: only use `Name` instead of `Id` in `SptEntry`
As a part of #26298, this patch refactors `SptEntry` to only carry a
`Name` instead of `Id`: we do not care about extra information like
caffyness or type at all in any static pointer related codegen logic.
This is necessary to make `SptEntry` serializable, as a part of the
grand plan of serializable bytecode.
Co-authored-by: Codex <codex(a)openai.com>
- - - - -
276f8ea8 by Vekhir -- at 2025-08-20T11:51:35-04:00
Bump Cabal dependency
- - - - -
0b9c7437 by Zubin Duggal at 2025-08-20T11:52:18-04:00
ci: Teach ci.sh to fetch FreeBSD artifacts from ghcup unofficial bindists and bootstrap compiler on FreeBSD to 9.10.1
Also refactor fetch_ghc logic in ci.sh, renaming the GHC_VERSION enviorment configuration variable to FETCH_GHC_VERSION,
making it clear that it is intended for use on platforms like Windows and FreeBSD where we don't want to use the GHC
excecutable from the platform environment and instead need to download and install GHC-$FETCH_GHC_VERSION from a release
bindist.
Fixes #26296
- - - - -
b2914797 by Cheng Shao at 2025-08-20T11:53:00-04:00
driver: use UniqSet for hiddenModules in DynFlags/FinderOpts
This patch replaces Set ModuleName with UniqSet ModuleName in
DynFlags.hiddenModules and FinderOpts.finder_hiddenModules for
improved efficiency.
Co-authored-by: Codex <codex(a)openai.com>
- - - - -
0335d899 by Cheng Shao at 2025-08-20T11:53:00-04:00
driver: use UniqMap ModuleName in the finder
This patch replaces Map ModuleName with UniqMap ModuleName in the
finder for improved efficiency.
Co-authored-by: Codex <codex(a)openai.com>
- - - - -
91f4faaa by Cheng Shao at 2025-08-20T11:53:43-04:00
configure: check python3 version and require minimal 3.7
Since !9515, the testsuite driver requires python3 version to be at
least 3.7, though this has never been checked by configure logic. This
patch implements the version check. Fixes #23234.
Co-authored-by: Codex <codex(a)openai.com>
- - - - -
df4ee9b4 by Cheng Shao at 2025-08-20T11:54:25-04:00
compiler: use zero cost coerce in GHC.CmmToAsm.CFG.loopInfo
This patch refactors GHC.CmmToAsm.CFG.loopInfo to use zero cost coerce
and thus addresses the TODO. For coerce to work, constructors of
Label/LabelMap/LabelSet from GHC.Cmm.Dataflow.Label are exposed,
though I believe it's a worthy tradeoff to avoid unnecessary runtime
cost without using unsafeCoerce, since the latter could be a landmine
for future refactoring.
Co-authored-by: Codex <codex(a)openai.com>
- - - - -
ccda188d by Simon Peyton Jones at 2025-08-20T11:55:07-04:00
Start with empty inerts in shortcut solving
When short-cut solving we were starting with an inert set that had
unsolved Wanteds. This caused an infinite loop (#26314), because a
typechecker plugin kept being given that unsolved Wanted.
It's better just to start with an empty inert set
- - - - -
c8882ed7 by Ben Gamari at 2025-08-20T11:55:49-04:00
configure: Bump minimal bootstrap GHC version to 9.8
- - - - -
f0a19d74 by fendor at 2025-08-20T19:55:00-04:00
Remove deprecated functions from the ghci package
- - - - -
ebeb991b by fendor at 2025-08-20T19:55:00-04:00
base: Remove unstable heap representation details from GHC.Exts
- - - - -
e368e247 by Rodrigo Mesquita at 2025-08-20T19:55:42-04:00
bytecode: Use 32bits for breakpoint index
Fixes #26325
- - - - -
42724462 by Simon Hengel at 2025-08-21T17:52:11-04:00
Serialize wired-in names as external names when creating HIE files
Note that the domain of de-serialized names stays the same.
Specifically, for known-key names, before `lookupKnownKeyName` was used,
while now this is handled by `lookupOrigNameCache` which captures the
same range provided that the OrigNameCache has been initialized with
`knownKeyNames` (which is the case by default).
(fixes #26238)
- - - - -
6a43f8ec by Cheng Shao at 2025-08-21T17:52:52-04:00
compiler: fix closure C type in SPT init code
This patch fixes the closure C type in SPT init code to StgClosure,
instead of the previously incorrect StgPtr. Having an incorrect C type
makes SPT init code not compatible with other foreign stub generation
logic, which may also emit their own extern declarations for the same
closure symbols and thus will clash with the incorrect prototypes in
SPT init code.
- - - - -
14928025 by Cheng Shao at 2025-08-23T03:52:17+02:00
rts: remove libbfd logic
- - - - -
1819d26b by Cheng Shao at 2025-08-23T03:52:17+02:00
compiler/rts: add debug symbolizer
- - - - -
191 changed files:
- .gitlab-ci.yml
- .gitlab/ci.sh
- .gitlab/generate-ci/gen_ci.hs
- .gitlab/jobs.yaml
- .mailmap
- compiler/GHC/Builtin/primops.txt.pp
- compiler/GHC/ByteCode/Asm.hs
- compiler/GHC/Cmm/Dataflow/Label.hs
- + compiler/GHC/Cmm/GenerateDebugSymbolStub.hs
- compiler/GHC/CmmToAsm/CFG.hs
- compiler/GHC/Driver/Backpack.hs
- compiler/GHC/Driver/CodeOutput.hs
- compiler/GHC/Driver/Config/Finder.hs
- compiler/GHC/Driver/DynFlags.hs
- compiler/GHC/Driver/Main.hs
- compiler/GHC/Driver/Make.hs
- compiler/GHC/Driver/Session.hs
- compiler/GHC/Hs/ImpExp.hs
- compiler/GHC/HsToCore/Docs.hs
- compiler/GHC/Iface/Ext/Ast.hs
- compiler/GHC/Iface/Ext/Binary.hs
- compiler/GHC/Iface/Ext/Types.hs
- compiler/GHC/Iface/Tidy/StaticPtrTable.hs
- compiler/GHC/Parser/Header.hs
- compiler/GHC/Rename/Names.hs
- compiler/GHC/StgToByteCode.hs
- compiler/GHC/StgToCmm/Prim.hs
- compiler/GHC/StgToJS/Prim.hs
- compiler/GHC/StgToJS/StaticPtr.hs
- compiler/GHC/Tc/Module.hs
- compiler/GHC/Tc/Solver/Dict.hs
- compiler/GHC/Tc/Solver/Monad.hs
- compiler/GHC/Tc/Solver/Solve.hs
- compiler/GHC/Tc/TyCl/Instance.hs
- compiler/GHC/Tc/Types/Origin.hs
- compiler/GHC/Types/Name/Cache.hs
- compiler/GHC/Types/Name/Reader.hs
- compiler/GHC/Types/SptEntry.hs
- compiler/GHC/Unit/Finder.hs
- compiler/GHC/Unit/Finder/Types.hs
- compiler/ghc.cabal.in
- configure.ac
- ghc/GHCi/UI.hs
- hadrian/bootstrap/generate_bootstrap_plans
- hadrian/bootstrap/hadrian-bootstrap-gen.cabal
- hadrian/bootstrap/plan-9_10_1.json
- hadrian/bootstrap/plan-9_6_5.json → hadrian/bootstrap/plan-9_10_2.json
- hadrian/bootstrap/plan-9_6_6.json → hadrian/bootstrap/plan-9_12_1.json
- hadrian/bootstrap/plan-9_6_4.json → hadrian/bootstrap/plan-9_12_2.json
- − hadrian/bootstrap/plan-9_6_1.json
- − hadrian/bootstrap/plan-9_6_2.json
- − hadrian/bootstrap/plan-9_6_3.json
- − hadrian/bootstrap/plan-9_8_1.json
- − hadrian/bootstrap/plan-9_8_2.json
- hadrian/bootstrap/plan-bootstrap-9_10_1.json
- hadrian/bootstrap/plan-bootstrap-9_6_5.json → hadrian/bootstrap/plan-bootstrap-9_10_2.json
- hadrian/bootstrap/plan-bootstrap-9_6_6.json → hadrian/bootstrap/plan-bootstrap-9_12_1.json
- hadrian/bootstrap/plan-bootstrap-9_8_1.json → hadrian/bootstrap/plan-bootstrap-9_12_2.json
- − hadrian/bootstrap/plan-bootstrap-9_6_1.json
- − hadrian/bootstrap/plan-bootstrap-9_6_2.json
- − hadrian/bootstrap/plan-bootstrap-9_6_3.json
- − hadrian/bootstrap/plan-bootstrap-9_6_4.json
- − hadrian/bootstrap/plan-bootstrap-9_8_2.json
- hadrian/bootstrap/src/Main.hs
- hadrian/cfg/system.config.in
- hadrian/hadrian.cabal
- hadrian/src/Oracles/Flag.hs
- hadrian/src/Settings/Packages.hs
- libffi-tarballs
- libraries/base/changelog.md
- libraries/base/src/GHC/Exts.hs
- libraries/ghc-experimental/ghc-experimental.cabal.in
- + libraries/ghc-experimental/src/GHC/Stack/Annotation/Experimental.hs
- libraries/ghc-heap/GHC/Exts/Heap/ClosureTypes.hs
- libraries/ghc-heap/GHC/Exts/Heap/Closures.hs
- libraries/ghc-heap/GHC/Exts/Stack.hs
- libraries/ghc-heap/GHC/Exts/Stack/Constants.hsc
- libraries/ghc-heap/GHC/Exts/Stack/Decode.hs
- + libraries/ghc-heap/tests/stack-annotation/Makefile
- + libraries/ghc-heap/tests/stack-annotation/TestUtils.hs
- + libraries/ghc-heap/tests/stack-annotation/all.T
- + libraries/ghc-heap/tests/stack-annotation/ann_frame001.hs
- + libraries/ghc-heap/tests/stack-annotation/ann_frame001.stdout
- + libraries/ghc-heap/tests/stack-annotation/ann_frame002.hs
- + libraries/ghc-heap/tests/stack-annotation/ann_frame002.stdout
- + libraries/ghc-heap/tests/stack-annotation/ann_frame003.hs
- + libraries/ghc-heap/tests/stack-annotation/ann_frame003.stdout
- + libraries/ghc-heap/tests/stack-annotation/ann_frame004.hs
- + libraries/ghc-heap/tests/stack-annotation/ann_frame004.stdout
- libraries/ghc-internal/src/GHC/Internal/ClosureTypes.hs
- libraries/ghci/GHCi/CreateBCO.hs
- libraries/ghci/GHCi/TH.hs
- libraries/ghci/ghci.cabal.in
- m4/find_python.m4
- − m4/fp_bfd_support.m4
- rts/ClosureFlags.c
- rts/Disassembler.c
- rts/Hash.c
- rts/Interpreter.c
- rts/LdvProfile.c
- rts/PrimOps.cmm
- rts/Printer.c
- rts/Printer.h
- rts/RetainerProfile.c
- rts/RtsStartup.c
- rts/RtsSymbols.c
- rts/TraverseHeap.c
- rts/configure.ac
- rts/include/Rts.h
- rts/include/rts/Config.h
- + rts/include/rts/Debug.h
- rts/include/rts/storage/ClosureTypes.h
- rts/include/rts/storage/Closures.h
- rts/include/stg/MiscClosures.h
- rts/js/profiling.js
- rts/rts.cabal
- rts/sm/Compact.c
- rts/sm/Evac.c
- rts/sm/NonMovingMark.c
- rts/sm/Sanity.c
- rts/sm/Scav.c
- testsuite/tests/gadt/T12468.stderr
- testsuite/tests/ghc-e/should_fail/T24172.stderr
- testsuite/tests/ghci/scripts/T8353.stderr
- testsuite/tests/ghci/scripts/ghci038.stdout
- testsuite/tests/interface-stability/base-exports.stdout
- testsuite/tests/interface-stability/base-exports.stdout-javascript-unknown-ghcjs
- testsuite/tests/interface-stability/base-exports.stdout-mingw32
- testsuite/tests/interface-stability/base-exports.stdout-ws-32
- testsuite/tests/interface-stability/ghc-experimental-exports.stdout
- testsuite/tests/interface-stability/ghc-experimental-exports.stdout-mingw32
- testsuite/tests/interface-stability/ghc-prim-exports.stdout
- testsuite/tests/interface-stability/ghc-prim-exports.stdout-mingw32
- − testsuite/tests/module/T21752.stderr
- testsuite/tests/module/mod150.stderr
- testsuite/tests/module/mod151.stderr
- testsuite/tests/module/mod152.stderr
- testsuite/tests/module/mod153.stderr
- testsuite/tests/overloadedrecflds/should_fail/T18999_NoDisambiguateRecordFields.stderr
- testsuite/tests/parser/should_compile/DumpRenamedAst.stderr
- testsuite/tests/parser/should_compile/T14189.stderr
- testsuite/tests/parser/should_compile/T19082.stderr
- testsuite/tests/perf/compiler/hard_hole_fits.stderr
- testsuite/tests/plugins/Makefile
- + testsuite/tests/plugins/T21730-plugin/Makefile
- + testsuite/tests/plugins/T21730-plugin/Setup.hs
- + testsuite/tests/plugins/T21730-plugin/T21730-plugin.cabal
- + testsuite/tests/plugins/T21730-plugin/T21730_Plugin.hs
- + testsuite/tests/plugins/T21730.hs
- testsuite/tests/plugins/all.T
- testsuite/tests/quotes/LiftErrMsg.stderr
- testsuite/tests/quotes/LiftErrMsgDefer.stderr
- testsuite/tests/quotes/LiftErrMsgTyped.stderr
- testsuite/tests/rename/should_compile/T22513d.stderr
- testsuite/tests/rename/should_compile/T22513e.stderr
- testsuite/tests/rename/should_compile/T22513f.stderr
- testsuite/tests/rename/should_compile/T22513g.stderr
- testsuite/tests/rename/should_compile/T22513h.stderr
- testsuite/tests/rename/should_compile/T22513i.stderr
- testsuite/tests/rename/should_compile/rn039.ghc.stderr
- testsuite/tests/rename/should_fail/T15487.stderr
- testsuite/tests/rename/should_fail/T18740a.stderr
- testsuite/tests/rename/should_fail/rnfail044.stderr
- testsuite/tests/rts/flags/all.T
- testsuite/tests/safeHaskell/flags/SafeFlags17.stderr
- + testsuite/tests/simplCore/should_compile/T24606.hs
- testsuite/tests/simplCore/should_compile/all.T
- testsuite/tests/th/T10267.stderr
- testsuite/tests/th/T14627.stderr
- testsuite/tests/th/T15321.stderr
- testsuite/tests/typecheck/should_compile/T13050.stderr
- testsuite/tests/typecheck/should_compile/T14273.stderr
- testsuite/tests/typecheck/should_compile/T14590.stderr
- testsuite/tests/typecheck/should_compile/T25180.stderr
- + testsuite/tests/typecheck/should_compile/T25992a.hs
- testsuite/tests/typecheck/should_compile/T9497a.stderr
- testsuite/tests/typecheck/should_compile/all.T
- testsuite/tests/typecheck/should_compile/refinement_hole_fits.stderr
- testsuite/tests/typecheck/should_compile/subsumption_sort_hole_fits.stderr
- testsuite/tests/typecheck/should_fail/T14884.stderr
- testsuite/tests/typecheck/should_fail/T21130.stderr
- testsuite/tests/typecheck/should_fail/T23739b.stderr
- testsuite/tests/typecheck/should_fail/T23739c.stderr
- testsuite/tests/typecheck/should_fail/T9497d.stderr
- testsuite/tests/typecheck/should_fail/tcfail037.stderr
- testsuite/tests/typecheck/should_run/T9497a-run.stderr
- testsuite/tests/typecheck/should_run/T9497b-run.stderr
- testsuite/tests/typecheck/should_run/T9497c-run.stderr
- testsuite/tests/vdq-rta/should_fail/T23738_fail_pun.stderr
- utils/deriveConstants/Main.hs
- utils/haddock/haddock-api/src/Haddock/InterfaceFile.hs
The diff was not included because it is too large.
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/fd415c7acb8a0b4cfc60bec097d95f…
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[Git][ghc/ghc][wip/T26255] 83 commits: refactor: Modify Data.List.sortOn to use (>) instead of compare. (#26184)
by Simon Peyton Jones (＠simonpj) 22 Aug '25
by Simon Peyton Jones (＠simonpj) 22 Aug '25
22 Aug '25
Simon Peyton Jones pushed to branch wip/T26255 at Glasgow Haskell Compiler / GHC
Commits:
1f9e4f54 by Stephen Morgan at 2025-08-03T15:14:08+10:00
refactor: Modify Data.List.sortOn to use (>) instead of compare. (#26184)
This lets a more efficient (>) operation be used if one exists.
This is technically a breaking change for malformed Ord instances, where
x > y is not equivalent to compare x y == GT.
Discussed by the CLC in issue #332: https://github.com/haskell/core-libraries-committee/issues/332
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4f6bc9cf by fendor at 2025-08-04T17:50:06-04:00
Revert "base: Expose Backtraces constructor and fields"
This reverts commit 17db44c5b32fff82ea988fa4f1a233d1a27bdf57.
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bcdec657 by Zubin Duggal at 2025-08-05T10:37:29+05:30
compiler: Export a version of `newNameCache` that is not prone to footguns.
`newNameCache` must be initialized with both a non-"reserved" unique tag, as well
as a list of known key names. Failing to do so results in hard to debug unique conflicts.
It is difficult for API users to tell which unique tags are safe to use. So instead of leaving
this up to the user to decide, we now export a version of `newNameCache` which uses a guaranteed
non-reserved unique tag. In fact, this is now the way the unique tag is initialized for all invocations
of the compiler.
The original version of `newNameCache` is now exported as `newNameCache'` for advanced users.
We also deprecate `initNameCache` as it is also prone to footguns and is completely subsumed in
functionality by `newNameCache` and `newNameCache'`.
Fixes #26135 and #26055
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57d3b4a8 by Andrew Lelechenko at 2025-08-05T18:36:31-04:00
hadrian: bump Stackage snapshot to LTS 24.2 / GHC 9.10.2
In line with #25693 we should use GHC 9.10 as a boot compiler,
while Hadrian stack.yaml was stuck on GHC 9.6.
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c2a78cea by Peng Fan at 2025-08-05T18:37:27-04:00
NCG/LA64: implement atomic write with finer-grained DBAR hints
Signed-off-by: Peng Fan <fanpeng(a)loongson.cn>
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95231c8e by Teo Camarasu at 2025-08-06T08:35:58-04:00
CODEOWNERS: add CLC as codeowner of base
We also remove hvr, since I think he is no longer active
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77df0ded by Andrew Lelechenko at 2025-08-06T08:36:39-04:00
Bump submodule text to 2.1.3
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8af260d0 by Nikolaos Chatzikonstantinou at 2025-08-06T08:37:23-04:00
docs: fix internal import in getopt examples
This external-facing doc example shouldn't mention GHC internals when
using 'fromMaybe'.
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69cc16ca by Marc Scholten at 2025-08-06T15:51:28-04:00
README: Add note on ghc.nix
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93a2f450 by Daniel Díaz at 2025-08-06T15:52:14-04:00
Link to the "Strict Bindings" docs from the linear types docs
Strict Bidings are relevant for the kinds of multiplicity annotations
linear lets support.
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246b7853 by Matthew Pickering at 2025-08-07T06:58:30-04:00
level imports: Check the level of exported identifiers
The level imports specification states that exported identifiers have to
be at level 0. This patch adds the requird level checks that all
explicitly mentioned identifiers occur at level 0.
For implicit export specifications (T(..) and module B), only level 0
identifiers are selected for re-export.
ghc-proposal: https://github.com/ghc-proposals/ghc-proposals/pull/705
Fixes #26090
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358bc4fc by fendor at 2025-08-07T06:59:12-04:00
Bump GHC on darwin CI to 9.10.1
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1903ae35 by Matthew Pickering at 2025-08-07T12:21:10+01:00
ipe: Place strings and metadata into specific .ipe section
By placing the .ipe metadata into a specific section it can be stripped
from the final binary if desired.
```
objcopy --remove-section .ipe <binary>
upx <binary>
```
Towards #21766
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c80dd91c by Matthew Pickering at 2025-08-07T12:22:42+01:00
ipe: Place magic word at the start of entries in the .ipe section
The magic word "IPE\nIPE\n" is placed at the start of .ipe sections,
then if the section is stripped, we can check whether the section starts
with the magic word or not to determine whether there is metadata
present or not.
Towards #21766
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cab42666 by Matthew Pickering at 2025-08-07T12:22:42+01:00
ipe: Use stable IDs for IPE entries
IPEs have historically been indexed and reported by their address.
This makes it impossible to compare profiles between runs, since the
addresses may change (due to ASLR) and also makes it tricky to separate
out the IPE map from the binary.
This small patch adds a stable identifier for each IPE entry.
The stable identifier is a single 64 bit word. The high-bits are a
per-module identifier and the low bits identify which entry in each
module.
1. When a node is added into the IPE buffer it is assigned a unique
identifier from an incrementing global counter.
2. Each entry already has an index by it's position in the
`IpeBufferListNode`.
The two are combined together by the `IPE_ENTRY_KEY` macro.
Info table profiling uses the stable identifier rather than the address
of the info table.
The benefits of this change are:
* Profiles from different runs can be easily compared
* The metadata can be extracted from the binary (via the eventlog for
example) and then stripped from the executable.
Fixes #21766
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2860a9a5 by Simon Peyton Jones at 2025-08-07T20:29:18-04:00
In TcSShortCut, typechecker plugins should get empty Givens
Solving in TcShortCut mode means /ignoring the Givens/. So we
should not pass them to typechecker plugins!
Fixes #26258.
This is a fixup to the earlier MR:
commit 1bd12371feacc52394a0e660ef9349f9e8ee1c06
Author: Simon Peyton Jones <simon.peytonjones(a)gmail.com>
Date: Mon Jul 21 10:04:49 2025 +0100
Improve treatment of SPECIALISE pragmas -- again!
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2157db2d by sterni at 2025-08-08T15:32:39-04:00
hadrian: enable terminfo if --with-curses-* flags are given
The GHC make build system used to support WITH_TERMINFO in ghc.mk which
allowed controlling whether to build GHC with terminfo or not. hadrian
has replaced this with a system where this is effectively controlled by
the cross-compiling setting (the default WITH_TERMINFO value was bassed
on CrossCompiling, iirc).
This behavior is undesireable in some cases and there is not really a
good way to work around it. Especially for downstream packagers,
modifying this via UserSettings is not really feasible since such a
source file has to be kept in sync with Settings/Default.hs manually
since it can't import Settings.Default or any predefined Flavour
definitions.
To avoid having to add a new setting to cfg/system.config and/or a new
configure flag (though I'm happy to implement both if required), I've
chosen to take --with-curses-* being set explicitly as an indication
that the user wants to have terminfo enabled. This would work for
Nixpkgs which sets these flags [1] as well as haskell.nix [2] (which
goes to some extreme measures [3] [4] to force terminfo in all scenarios).
In general, I'm an advocate for making the GHC build be the same for
native and cross insofar it is possible since it makes packaging GHC and
Haskell related things while still supporting cross much less
compilicated. A more minimal GHC with reduced dependencies should
probably be a specific flavor, not the default.
Partially addresses #26288 by forcing terminfo to be built if the user
explicitly passes configure flags related to it. However, it isn't built
by default when cross-compiling yet nor is there an explicit way to
control the package being built.
[1]: https://github.com/NixOS/nixpkgs/blob/3a7266fcefcb9ce353df49ba3f292d0644376…
[2]: https://github.com/input-output-hk/haskell.nix/blob/6eaafcdf04bab7be745d1aa…
[3]: https://github.com/input-output-hk/haskell.nix/blob/6eaafcdf04bab7be745d1aa…
[4]: https://github.com/input-output-hk/haskell.nix/blob/6eaafcdf04bab7be745d1aa…
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b3c31488 by David Feuer at 2025-08-08T15:33:21-04:00
Add default QuasiQuoters
Add `defaultQuasiQuoter` and `namedDefaultQuasiQuoter` to make it easier
to write `QuasiQuoters` that give helpful error messages when they're
used in inappropriate contexts.
Closes #24434.
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03555ed8 by Sylvain Henry at 2025-08-10T22:20:57-04:00
Handle non-fractional CmmFloats in Cmm's CBE (#26229)
Since f8d9d016305be355f518c141f6c6d4826f2de9a2, toRational for Float and
Double converts float's infinity and NaN into Rational's infinity and
NaN (respectively 1%0 and 0%0).
Cmm CommonBlockEliminator hashing function needs to take these values
into account as they can appear as literals now. See added testcase.
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6c956af3 by J. Ryan Stinnett at 2025-08-10T22:21:42-04:00
Fix extensions list in `DoAndIfThenElse` docs
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6dc420b1 by J. Ryan Stinnett at 2025-08-10T22:21:42-04:00
Document status of `RelaxedPolyRec` extension
This adds a brief extension page explaining the status of the
`RelaxedPolyRec` extension. The behaviour of this mode is already
explained elsewhere, so this page is mainly for completeness so that
various lists of extensions have somewhere to point to for this flag.
Fixes #18630
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18036d52 by Simon Peyton Jones at 2025-08-11T11:31:20-04:00
Take more care in zonkEqTypes on AppTy/AppTy
This patch fixes #26256.
See Note [zonkEqTypes and the PKTI] in GHC.Tc.Solver.Equality
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c8d76a29 by Zubin Duggal at 2025-08-11T11:32:02-04:00
ci: upgrade bootstrap compiler on windows to 9.10.1
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34fc50c1 by Ben Gamari at 2025-08-11T13:36:25-04:00
Kill IOPort#
This type is unnecessary, having been superceded by `MVar` and a rework
of WinIO's blocking logic.
See #20947.
See https://github.com/haskell/core-libraries-committee/issues/213.
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56b32c5a by sheaf at 2025-08-12T10:00:19-04:00
Improve deep subsumption
This commit improves the DeepSubsumption sub-typing implementation
in GHC.Tc.Utils.Unify.tc_sub_type_deep by being less eager to fall back
to unification.
For example, we now are properly able to prove the subtyping relationship
((∀ a. a->a) -> Int) -> Bool <= β[tau] Bool
for an unfilled metavariable β. In this case (with an AppTy on the right),
we used to fall back to unification. No longer: now, given that the LHS
is a FunTy and that the RHS is a deep rho type (does not need any instantiation),
we try to make the RHS into a FunTy, viz.
β := (->) γ
We can then continue using covariance & contravariance of the function
arrow, which allows us to prove the subtyping relationship, instead of
trying to unify which would cause us to error out with:
Couldn't match expected type ‘β’ with actual type ‘(->) ((∀ a. a -> a) -> Int)
See Note [FunTy vs non-FunTy case in tc_sub_type_deep] in GHC.Tc.Utils.Unify.
The other main improvement in this patch concerns type inference.
The main subsumption logic happens (before & after this patch) in
GHC.Tc.Gen.App.checkResultTy. However, before this patch, all of the
DeepSubsumption logic only kicked in in 'check' mode, not in 'infer' mode.
This patch adds deep instantiation in the 'infer' mode of checkResultTy
when we are doing deep subsumption, which allows us to accept programs
such as:
f :: Int -> (forall a. a->a)
g :: Int -> Bool -> Bool
test1 b =
case b of
True -> f
False -> g
test2 b =
case b of
True -> g
False -> f
See Note [Deeply instantiate in checkResultTy when inferring].
Finally, we add representation-polymorphism checks to ensure that the
lambda abstractions we introduce when doing subsumption obey the
representation polymorphism invariants of Note [Representation polymorphism invariants]
in GHC.Core. See Note [FunTy vs FunTy case in tc_sub_type_deep].
This is accompanied by a courtesy change to `(<.>) :: HsWrapper -> HsWrapper -> HsWrapper`,
adding the equation:
WpCast c1 <.> WpCast c2 = WpCast (c1 `mkTransCo` c2)
This is useful because mkWpFun does not introduce an eta-expansion when
both of the argument & result wrappers are casts; so this change allows
us to avoid introducing lambda abstractions when casts suffice.
Fixes #26225
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d175aff8 by Sylvain Henry at 2025-08-12T10:01:31-04:00
Add regression test for #18619
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a3983a26 by Sylvain Henry at 2025-08-12T10:02:20-04:00
RTS: remove some TSAN annotations (#20464)
Use RELAXED_LOAD_ALWAYS macro instead.
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0434af81 by Ben Gamari at 2025-08-12T10:03:02-04:00
Bump time submodule to 1.15
Also required bumps of Cabal, directory, and hpc.
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62899117 by Florian Ragwitz at 2025-08-13T21:01:34-04:00
Extend record-selector usage ticking to all binds using a record field
This extends the previous handling of ticking for RecordWildCards and
NamedFieldPuns to all var bindings that involve record selectors.
Note that certain patterns such as `Foo{foo = 42}` will currently not tick the
`foo` selector, as ticking is triggered by `HsVar`s.
Closes #26191.
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b37b3af7 by Florian Ragwitz at 2025-08-13T21:01:34-04:00
Add release notes for 9.16.1 and move description of latest HPC changes there.
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a5e4b7d9 by Ben Gamari at 2025-08-13T21:02:18-04:00
rts: Clarify rationale for undefined atomic wrappers
Since c06e3f46d24ef69f3a3d794f5f604cb8c2a40cbc the RTS has declared
various atomic operation wrappers defined by ghc-internal as undefined.
While the rationale for this isn't clear from the commit message, I
believe that this is necessary due to the unregisterised backend.
Specifically, the code generator will reference these symbols when
compiling RTS Cmm sources.
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50842f83 by Andreas Klebinger at 2025-08-13T21:03:01-04:00
Make unexpected LLVM versions a warning rather than an error.
Typically a newer LLVM version *will* work so erroring out if
a user uses a newer LLVM version is too aggressive.
Fixes #25915
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c91e2650 by fendor at 2025-08-13T21:03:43-04:00
Store `StackTrace` and `StackSnapshot` in `Backtraces`
Instead of decoding the stack traces when collecting the `Backtraces`,
defer this decoding until actually showing the `Backtraces`.
This allows users to customise how `Backtraces` are displayed by
using a custom implementation of `displayExceptionWithInfo`, overwriting
the default implementation for `Backtraces` (`displayBacktraces`).
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dee28cdd by fendor at 2025-08-13T21:03:43-04:00
Allow users to customise the collection of exception annotations
Add a global `CollectExceptionAnnotationMechanism` which determines how
`ExceptionAnnotation`s are collected upon throwing an `Exception`.
This API is exposed via `ghc-experimental`.
By overriding how we collect `Backtraces`, we can control how the
`Backtraces` are displayed to the user by newtyping `Backtraces` and
giving a different instance for `ExceptionAnnotation`.
A concrete use-case for this feature is allowing us to experiment with
alternative stack decoders, without having to modify `base`, which take
additional information from the stack frames.
This commit does not modify how `Backtraces` are currently
collected or displayed.
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66024722 by fendor at 2025-08-13T21:03:43-04:00
Expose Backtraces internals from ghc-experimental
Additionally, expose the same API `base:Control.Exception.Backtrace`
to make it easier to use as a drop-in replacement.
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a766286f by Reed Mullanix at 2025-08-13T21:04:36-04:00
ghc-internal: Fix naturalAndNot for NB/NS case
When the first argument to `naturalAndNot` is larger than a `Word` and the second is `Word`-sized, `naturalAndNot` will truncate the
result:
```
>>> naturalAndNot ((2 ^ 65) .|. (2 ^ 3)) (2 ^ 3)
0
```
In contrast, `naturalAndNot` does not truncate when both arguments are larger than a `Word`, so this appears to be a bug.
Luckily, the fix is pretty easy: we just need to call `bigNatAndNotWord#` instead of truncating.
Fixes #26230
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3506fa7d by Simon Hengel at 2025-08-13T21:05:18-04:00
Report -pgms as a deprecated flag
(instead of reporting an unspecific warning)
Before:
on the commandline: warning:
Object splitting was removed in GHC 8.8
After:
on the commandline: warning: [GHC-53692] [-Wdeprecated-flags]
-pgms is deprecated: Object splitting was removed in GHC 8.8
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51c701fe by Zubin Duggal at 2025-08-13T21:06:00-04:00
testsuite: Be more permissive when filtering out GNU_PROPERTY_TYPE linker warnings
The warning text is slightly different with ld.bfd.
Fixes #26249
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dfe6f464 by Simon Hengel at 2025-08-13T21:06:43-04:00
Refactoring: Don't misuse `MCDiagnostic` for lint messages
`MCDiagnostic` is meant to be used for compiler diagnostics.
Any code that creates `MCDiagnostic` directly, without going through
`GHC.Driver.Errors.printMessage`, side steps `-fdiagnostics-as-json`
(see e.g. !14475, !14492 !14548).
To avoid this in the future I want to control more narrowly who creates
`MCDiagnostic` (see #24113).
Some parts of the compiler use `MCDiagnostic` purely for formatting
purposes, without creating any real compiler diagnostics. This change
introduces a helper function, `formatDiagnostic`, that can be used in
such cases instead of constructing `MCDiagnostic`.
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a8b2fbae by Teo Camarasu at 2025-08-13T21:07:24-04:00
rts: ensure MessageBlackHole.link is always a valid closure
We turn a MessageBlackHole into an StgInd in wakeBlockingQueue().
Therefore it's important that the link field, which becomes the
indirection field, always points to a valid closure.
It's unclear whether it's currently possible for the previous behaviour
to lead to a crash, but it's good to be consistent about this invariant nonetheless.
Co-authored-by: Andreas Klebinger <klebinger.andreas(a)gmx.at>
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4021181e by Teo Camarasu at 2025-08-13T21:07:24-04:00
rts: spin if we see a WHITEHOLE in messageBlackHole
When a BLACKHOLE gets cancelled in raiseAsync, we indirect to a THUNK.
GC can then shortcut this, replacing our BLACKHOLE with a fresh THUNK.
This THUNK is not guaranteed to have a valid indirectee field.
If at the same time, a message intended for the previous BLACKHOLE is
processed and concurrently we BLACKHOLE the THUNK, thus temporarily
turning it into a WHITEHOLE, we can get a segfault, since we look at the
undefined indirectee field of the THUNK
The fix is simple: spin if we see a WHITEHOLE, and it will soon be
replaced with a valid BLACKHOLE.
Resolves #26205
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1107af89 by Oleg Grenrus at 2025-08-13T21:08:06-04:00
Allow defining HasField instances for naughty fields
Resolves #26295
... as HasField solver doesn't solve for fields with "naughty"
selectors, we could as well allow defining HasField instances for these
fields.
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020e7587 by Sylvain Henry at 2025-08-13T21:09:00-04:00
Fix Data.List unqualified import warning
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fd811ded by Simon Peyton Jones at 2025-08-14T17:56:47-04:00
Make injecting implicit bindings into its own pass
Previously we were injecting "impliicit bindings" (data constructor
worker and wrappers etc)
- both at the end of CoreTidy,
- and at the start of CorePrep
This is unpleasant and confusing. This patch puts it it its own pass,
addImplicitBinds, which runs between the two.
The function `GHC.CoreToStg.AddImplicitBinds.addImplicitBinds` now takes /all/
TyCons, not just the ones for algebraic data types. That change ripples
through to
- corePrepPgm
- doCodeGen
- byteCodeGen
All take [TyCon] which includes all TyCons
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9bd7fcc5 by Simon Peyton Jones at 2025-08-14T17:56:47-04:00
Implement unary classes
The big change is described exhaustively in
Note [Unary class magic] in GHC.Core.TyCon
Other changes
* We never unbox class dictionaries in worker/wrapper. This has been true for some
time now, but the logic is now centralised in functions in
GHC.Core.Opt.WorkWrap.Utils, namely `canUnboxTyCon`, and `canUnboxArg`
See Note [Do not unbox class dictionaries] in GHC.Core.Opt.WorkWrap.Utils.
* Refactored the `notWorthFloating` logic in GHc.Core.Opt.SetLevels.
I can't remember if I actually changed any behaviour here, but if so it's
only in a corner cases.
* Fixed a bug in `GHC.Core.TyCon.isEnumerationTyCon`, which was wrongly returning
True for (##).
* Remove redundant Role argument to `liftCoSubstWithEx`. It was always
Representational.
* I refactored evidence generation in the constraint solver:
* Made GHC.Tc.Types.Evidence contain better abstactions for evidence
generation.
* I deleted the file `GHC.Tc.Types.EvTerm` and merged its (small) contents
elsewhere. It wasn't paying its way.
* Made evidence for implicit parameters go via a proper abstraction.
* Fix inlineBoringOk; see (IB6) in Note [inlineBoringOk]
This fixes a slowdown in `countdownEffectfulDynLocal`
in the `effectful` library.
Smaller things
* Rename `isDataTyCon` to `isBoxedDataTyCon`.
* GHC.Core.Corecion.liftCoSubstWithEx was only called with Representational role,
so I baked that into the function and removed the argument.
* Get rid of `GHC.Core.TyCon.tyConSingleAlgDataCon_maybe` in favour of calling
`not isNewTyCon` at the call sites; more explicit.
* Refatored `GHC.Core.TyCon.isInjectiveTyCon`; but I don't think I changed its
behaviour
* Moved `decomposeIPPred` to GHC.Core.Predicate
Compile time performance changes:
geo. mean +0.1%
minimum -6.8%
maximum +14.4%
The +14% one is in T21839c, where it seems that a bit more inlining
is taking place. That seems acceptable; and the average change is small
Metric Decrease:
LargeRecord
T12227
T12707
T16577
T21839r
T5642
Metric Increase:
T15164
T21839c
T3294
T5321FD
T5321Fun
WWRec
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b4075d71 by Simon Peyton Jones at 2025-08-14T17:56:47-04:00
Slight improvement to pre/postInlineUnconditionally
Avoids an extra simplifier iteration
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9e443596 by Simon Peyton Jones at 2025-08-14T17:56:47-04:00
Fix a long-standing assertion error in normSplitTyConApp_maybe
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91310ad0 by Simon Peyton Jones at 2025-08-14T17:56:47-04:00
Add comment to coercion optimiser
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5b841d82 by Teo Camarasu at 2025-08-14T17:57:56-04:00
template-haskell: move some identifiers from ghc-internal to template-haskell
These identifiers are not used internally by the compiler. Therefore we
have no reason for them to be in ghc-internal.
By moving them to template-haskell, we benefit from it being easier to
change them and we avoid having to build them in stage0.
Resolves #26048
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33e2c7e5 by Teo Camarasu at 2025-08-14T17:57:56-04:00
template-haskell: transfer $infix note to public module
This Haddock note should be in the public facing module
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2a411fc4 by Sylvain Henry at 2025-08-14T17:59:09-04:00
JS: export HEAP8 symbol (#26290)
Newer Emscripten requires this.
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248f78ca by Ben Gamari at 2025-08-14T17:59:51-04:00
users-guide: Drop the THREAD_RUNNABLE event
As of f361281c89fbce42865d8b8b27b0957205366186 it is no longer emitted.
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706d33e3 by Recursion Ninja at 2025-08-15T04:12:12-04:00
Resolving issues #20645 and #26109
Correctly sign extending and casting smaller bit width types for LLVM operations:
- bitReverse8#
- bitReverse16#
- bitReverse32#
- byteSwap16#
- byteSwap32#
- pdep8#
- pdep16#
- pext8#
- pext16#
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1cdc6f46 by Cheng Shao at 2025-08-15T04:12:56-04:00
hadrian: enforce have_llvm=False for wasm32/js
This patch fixes hadrian to always pass have_llvm=False to the
testsuite driver for wasm32/js targets. These targets don't really
support the LLVM backend, and the optllvm test way doesn't work. We
used to special-case wasm32/js to avoid auto-adding optllvm way in
testsuite/config/ghc, but this is still problematic if someone writes
a new LLVM-related test and uses something like when(have_llvm(),
extra_ways(["optllvm"])). So better just enforce have_llvm=False for
these targets here.
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ca03226d by Ben Gamari at 2025-08-18T13:43:20+00:00
configure: Allow use of LLVM 20
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783cd7d6 by Cheng Shao at 2025-08-18T20:13:14-04:00
compiler: use `UniqMap` instead of `Map` for `BCEnv` in bytecode compiler
The bytecode compiler maintains a `BCEnv` which was previously `Map Id
StackDepth`. Given `Id` is `Uniquable`, we might as well use `UniqMap`
here as a more efficient data structure, hence this patch.
Co-authored-by: Codex <codex(a)openai.com>
- - - - -
58e46da9 by fendor at 2025-08-18T20:13:56-04:00
rts: Strip lower three bits when hashing Word instead of lower eight bits
- - - - -
45dbfa23 by Cheng Shao at 2025-08-18T20:14:37-04:00
libffi: update to 3.5.2
Bumps libffi submodule.
- - - - -
54be78ef by Ben Gamari at 2025-08-19T16:28:05-04:00
testsuite: Fix T20006b
This test is supposed to fail for non-threaded ways yet it
was previously marked as only failing in `normal`.
Fix this.
- - - - -
f4bac607 by Simon Peyton Jones at 2025-08-19T16:28:47-04:00
Take yet more care with reporting redundant constraints
This small patch fixes #25992, which relates to reporting redundant
constraints on default-method declarations.
See (TRC5) in Note [Tracking redundant constraints]
- - - - -
ab130fec by fendor at 2025-08-19T16:29:29-04:00
Bump dependencies of hadrian-bootstrap-gen to use GHC 9.6.7
- - - - -
6d02ac6f by fendor at 2025-08-19T16:29:29-04:00
Bump required GHC version for test-bootstrap jobs to 9.10.1
Include test-bootstrap job for GHC 9.12.2.
Update hadrian bootstrap plans use GHC 9.10 and 9.12
Remove older GHC bootstrap configurations.
We require at least GHC 9.10.1 to build GHC.
Adds plans for:
* 9.10.1
* 9.10.2
* 9.12.1
* 9.12.2
- - - - -
9e857171 by Brandon Chinn at 2025-08-20T11:47:46-04:00
Don't warn unused-imports with used generated imports
Fixes #21730
* The old notion of "implicit" import has been renamed to "generated". See Note [Generated imports] in GHC.Hs.ImpExp.
* ImportMap now keeps track of generated and user-written imports separately. This avoids the fake SrcSpan we used to give the implicit Prelude import, and the hack that went with it.
* -ddump-minimal-imports now considers generated imports (but still only
warns on + prints user-written imports)
* bestImport considers generated imports to take priority over user-written imports.
- - - - -
9fb3bad4 by Ben Gamari at 2025-08-20T11:48:31-04:00
mailmap: Use ben(a)well-typed.com more liberally
Nearly all of this work was done while working for Well-Typed.
- - - - -
774fec37 by Ben Gamari at 2025-08-20T11:49:15-04:00
Add primop to annotate the call stack with arbitrary data
We introduce a new primop `annotateStack#` which allows us to push
arbitrary data onto the call-stack.
This allows us to extract the data later when decoding the stack, for
example when an exception is thrown, showing more information to the
user without having to annotate the full call-stack with `HasCallStack`
constraints.
A new stack frame value is introduced `AnnFrame`, which consists of
nothing but a generic payload.
The primop has a small wrapper API that allows users to annotate their
call-stack in programs.
There is a pure API and an IO-based one. The former is a little bit
dubious, as it affects the evaluation of a program, so use with care.
The latter is "safe", as it doesn't change the evaluation of the
program.
The stack annotation mechanism is similarly implemented to the
`ExceptionAnnotation` and `Exception`, there is a typeclass to indicate
something can be pushed onto the call-stack and all values are wrapped
in the existential `SomeStackAnnotation`, which recover the type of the
annotation payload.
There is currently no builtin way to show the stack annotations when
`Backtraces` are displayed (i.e., when showing stack traces to the user),
which we will address in a follow-up MR.
-------------------------
Metric Increase:
ghc_experimental_so
-------------------------
We increase the size of the package, so this is not unreasonable.
Co-Authored-By: fendor <fendor(a)posteo.de>
Co-Authored-By: Ben Gamari <bgamari.foss(a)gmail.com>
- - - - -
fdfa3892 by Ben Gamari at 2025-08-20T11:49:57-04:00
testsuite: Add regression test for #24606
- - - - -
39b2e382 by Cheng Shao at 2025-08-20T11:50:40-04:00
compiler: only use `Name` instead of `Id` in `SptEntry`
As a part of #26298, this patch refactors `SptEntry` to only carry a
`Name` instead of `Id`: we do not care about extra information like
caffyness or type at all in any static pointer related codegen logic.
This is necessary to make `SptEntry` serializable, as a part of the
grand plan of serializable bytecode.
Co-authored-by: Codex <codex(a)openai.com>
- - - - -
276f8ea8 by Vekhir -- at 2025-08-20T11:51:35-04:00
Bump Cabal dependency
- - - - -
0b9c7437 by Zubin Duggal at 2025-08-20T11:52:18-04:00
ci: Teach ci.sh to fetch FreeBSD artifacts from ghcup unofficial bindists and bootstrap compiler on FreeBSD to 9.10.1
Also refactor fetch_ghc logic in ci.sh, renaming the GHC_VERSION enviorment configuration variable to FETCH_GHC_VERSION,
making it clear that it is intended for use on platforms like Windows and FreeBSD where we don't want to use the GHC
excecutable from the platform environment and instead need to download and install GHC-$FETCH_GHC_VERSION from a release
bindist.
Fixes #26296
- - - - -
b2914797 by Cheng Shao at 2025-08-20T11:53:00-04:00
driver: use UniqSet for hiddenModules in DynFlags/FinderOpts
This patch replaces Set ModuleName with UniqSet ModuleName in
DynFlags.hiddenModules and FinderOpts.finder_hiddenModules for
improved efficiency.
Co-authored-by: Codex <codex(a)openai.com>
- - - - -
0335d899 by Cheng Shao at 2025-08-20T11:53:00-04:00
driver: use UniqMap ModuleName in the finder
This patch replaces Map ModuleName with UniqMap ModuleName in the
finder for improved efficiency.
Co-authored-by: Codex <codex(a)openai.com>
- - - - -
91f4faaa by Cheng Shao at 2025-08-20T11:53:43-04:00
configure: check python3 version and require minimal 3.7
Since !9515, the testsuite driver requires python3 version to be at
least 3.7, though this has never been checked by configure logic. This
patch implements the version check. Fixes #23234.
Co-authored-by: Codex <codex(a)openai.com>
- - - - -
df4ee9b4 by Cheng Shao at 2025-08-20T11:54:25-04:00
compiler: use zero cost coerce in GHC.CmmToAsm.CFG.loopInfo
This patch refactors GHC.CmmToAsm.CFG.loopInfo to use zero cost coerce
and thus addresses the TODO. For coerce to work, constructors of
Label/LabelMap/LabelSet from GHC.Cmm.Dataflow.Label are exposed,
though I believe it's a worthy tradeoff to avoid unnecessary runtime
cost without using unsafeCoerce, since the latter could be a landmine
for future refactoring.
Co-authored-by: Codex <codex(a)openai.com>
- - - - -
ccda188d by Simon Peyton Jones at 2025-08-20T11:55:07-04:00
Start with empty inerts in shortcut solving
When short-cut solving we were starting with an inert set that had
unsolved Wanteds. This caused an infinite loop (#26314), because a
typechecker plugin kept being given that unsolved Wanted.
It's better just to start with an empty inert set
- - - - -
c8882ed7 by Ben Gamari at 2025-08-20T11:55:49-04:00
configure: Bump minimal bootstrap GHC version to 9.8
- - - - -
f0a19d74 by fendor at 2025-08-20T19:55:00-04:00
Remove deprecated functions from the ghci package
- - - - -
ebeb991b by fendor at 2025-08-20T19:55:00-04:00
base: Remove unstable heap representation details from GHC.Exts
- - - - -
e368e247 by Rodrigo Mesquita at 2025-08-20T19:55:42-04:00
bytecode: Use 32bits for breakpoint index
Fixes #26325
- - - - -
42724462 by Simon Hengel at 2025-08-21T17:52:11-04:00
Serialize wired-in names as external names when creating HIE files
Note that the domain of de-serialized names stays the same.
Specifically, for known-key names, before `lookupKnownKeyName` was used,
while now this is handled by `lookupOrigNameCache` which captures the
same range provided that the OrigNameCache has been initialized with
`knownKeyNames` (which is the case by default).
(fixes #26238)
- - - - -
6a43f8ec by Cheng Shao at 2025-08-21T17:52:52-04:00
compiler: fix closure C type in SPT init code
This patch fixes the closure C type in SPT init code to StgClosure,
instead of the previously incorrect StgPtr. Having an incorrect C type
makes SPT init code not compatible with other foreign stub generation
logic, which may also emit their own extern declarations for the same
closure symbols and thus will clash with the incorrect prototypes in
SPT init code.
- - - - -
f9a3f8eb by Simon Peyton Jones at 2025-08-23T00:28:04+01:00
Report solid equality errors before custom errors
This MR fixes #26255 by reporting solid equality errors like
Int ~ Bool
before "custom type errors". Details in #26255, and the comments
with `report1` in the patch.
The priority for custom type errors was introduced in the original
custom-type-error patch, and has (sadly) been present since GHC 9.4
- - - - -
2c487e25 by Simon Peyton Jones at 2025-08-23T00:28:05+01:00
Better position for custom errors
- - - - -
43bab06b by Simon Peyton Jones at 2025-08-23T00:28:05+01:00
Prioritise errors with a (F tys ~ rigid)
See the ticket for more
- - - - -
461 changed files:
- .gitlab-ci.yml
- .gitlab/ci.sh
- .gitlab/darwin/toolchain.nix
- .gitlab/generate-ci/gen_ci.hs
- .gitlab/jobs.yaml
- .mailmap
- CODEOWNERS
- README.md
- compiler/GHC/Builtin/Names.hs
- compiler/GHC/Builtin/PrimOps/Ids.hs
- compiler/GHC/Builtin/Types.hs
- compiler/GHC/Builtin/Types/Prim.hs
- compiler/GHC/Builtin/primops.txt.pp
- compiler/GHC/ByteCode/Asm.hs
- compiler/GHC/ByteCode/InfoTable.hs
- compiler/GHC/Cmm.hs
- compiler/GHC/Cmm/CommonBlockElim.hs
- compiler/GHC/Cmm/Dataflow/Label.hs
- compiler/GHC/CmmToAsm/CFG.hs
- compiler/GHC/CmmToAsm/LA64/CodeGen.hs
- compiler/GHC/CmmToAsm/PPC/Ppr.hs
- compiler/GHC/CmmToAsm/Ppr.hs
- compiler/GHC/CmmToLlvm/CodeGen.hs
- compiler/GHC/CmmToLlvm/Data.hs
- compiler/GHC/Core/Class.hs
- compiler/GHC/Core/Coercion.hs
- compiler/GHC/Core/Coercion/Opt.hs
- compiler/GHC/Core/DataCon.hs
- compiler/GHC/Core/FamInstEnv.hs
- compiler/GHC/Core/Lint.hs
- compiler/GHC/Core/Opt/Arity.hs
- compiler/GHC/Core/Opt/CprAnal.hs
- compiler/GHC/Core/Opt/DmdAnal.hs
- compiler/GHC/Core/Opt/OccurAnal.hs
- compiler/GHC/Core/Opt/SetLevels.hs
- compiler/GHC/Core/Opt/Simplify/Utils.hs
- compiler/GHC/Core/Opt/Specialise.hs
- compiler/GHC/Core/Opt/WorkWrap/Utils.hs
- compiler/GHC/Core/Predicate.hs
- compiler/GHC/Core/TyCo/Rep.hs
- compiler/GHC/Core/TyCon.hs
- compiler/GHC/Core/Type.hs
- compiler/GHC/Core/Unfold.hs
- compiler/GHC/Core/Unfold/Make.hs
- compiler/GHC/Core/Unify.hs
- compiler/GHC/Core/Utils.hs
- compiler/GHC/CoreToStg.hs
- + compiler/GHC/CoreToStg/AddImplicitBinds.hs
- compiler/GHC/CoreToStg/Prep.hs
- compiler/GHC/Driver/Backpack.hs
- compiler/GHC/Driver/Config/Finder.hs
- compiler/GHC/Driver/DynFlags.hs
- compiler/GHC/Driver/Errors/Ppr.hs
- compiler/GHC/Driver/Main.hs
- compiler/GHC/Driver/Make.hs
- compiler/GHC/Driver/Session.hs
- compiler/GHC/Hs/ImpExp.hs
- compiler/GHC/HsToCore.hs
- compiler/GHC/HsToCore/Binds.hs
- compiler/GHC/HsToCore/Docs.hs
- compiler/GHC/HsToCore/Expr.hs
- compiler/GHC/HsToCore/Foreign/Call.hs
- compiler/GHC/HsToCore/Pmc/Solver.hs
- compiler/GHC/HsToCore/Ticks.hs
- compiler/GHC/Iface/Decl.hs
- compiler/GHC/Iface/Ext/Ast.hs
- compiler/GHC/Iface/Ext/Binary.hs
- compiler/GHC/Iface/Ext/Types.hs
- compiler/GHC/Iface/Syntax.hs
- compiler/GHC/Iface/Tidy.hs
- compiler/GHC/Iface/Tidy/StaticPtrTable.hs
- compiler/GHC/IfaceToCore.hs
- compiler/GHC/Parser/Header.hs
- compiler/GHC/Rename/Module.hs
- compiler/GHC/Rename/Names.hs
- compiler/GHC/Runtime/Debugger/Breakpoints.hs
- compiler/GHC/Stg/Lint.hs
- compiler/GHC/StgToByteCode.hs
- compiler/GHC/StgToCmm.hs
- compiler/GHC/StgToCmm/InfoTableProv.hs
- compiler/GHC/StgToCmm/Prim.hs
- compiler/GHC/StgToJS/Prim.hs
- compiler/GHC/StgToJS/StaticPtr.hs
- compiler/GHC/Tc/Errors.hs
- compiler/GHC/Tc/Gen/App.hs
- compiler/GHC/Tc/Gen/Bind.hs
- compiler/GHC/Tc/Gen/Export.hs
- compiler/GHC/Tc/Gen/Expr.hs
- compiler/GHC/Tc/Gen/HsType.hs
- compiler/GHC/Tc/Instance/Class.hs
- compiler/GHC/Tc/Instance/Family.hs
- compiler/GHC/Tc/Module.hs
- compiler/GHC/Tc/Solver/Default.hs
- compiler/GHC/Tc/Solver/Dict.hs
- compiler/GHC/Tc/Solver/Equality.hs
- compiler/GHC/Tc/Solver/Monad.hs
- compiler/GHC/Tc/Solver/Solve.hs
- compiler/GHC/Tc/TyCl.hs
- compiler/GHC/Tc/TyCl/Build.hs
- compiler/GHC/Tc/TyCl/Instance.hs
- compiler/GHC/Tc/TyCl/PatSyn.hs
- compiler/GHC/Tc/TyCl/Utils.hs
- − compiler/GHC/Tc/Types/EvTerm.hs
- compiler/GHC/Tc/Types/Evidence.hs
- compiler/GHC/Tc/Types/Origin.hs
- compiler/GHC/Tc/Utils/Concrete.hs
- compiler/GHC/Tc/Utils/TcMType.hs
- compiler/GHC/Tc/Utils/TcType.hs
- compiler/GHC/Tc/Utils/Unify.hs
- compiler/GHC/Tc/Validity.hs
- compiler/GHC/Types/Demand.hs
- compiler/GHC/Types/Error.hs
- compiler/GHC/Types/Id.hs
- compiler/GHC/Types/Id/Make.hs
- compiler/GHC/Types/Name/Cache.hs
- compiler/GHC/Types/Name/Reader.hs
- compiler/GHC/Types/RepType.hs
- compiler/GHC/Types/SptEntry.hs
- compiler/GHC/Types/TyThing.hs
- compiler/GHC/Unit/Finder.hs
- compiler/GHC/Unit/Finder/Types.hs
- compiler/GHC/Utils/Error.hs
- compiler/ghc.cabal.in
- configure.ac
- − docs/users_guide/9.14.1-notes.rst
- + docs/users_guide/9.16.1-notes.rst
- docs/users_guide/conf.py
- docs/users_guide/debug-info.rst
- docs/users_guide/eventlog-formats.rst
- docs/users_guide/expected-undocumented-flags.txt
- docs/users_guide/exts/doandifthenelse.rst
- docs/users_guide/exts/linear_types.rst
- + docs/users_guide/exts/relaxed_poly_rec.rst
- docs/users_guide/exts/strict.rst
- docs/users_guide/exts/types.rst
- docs/users_guide/release-notes.rst
- ghc/GHCi/UI.hs
- ghc/ghc-bin.cabal.in
- hadrian/bootstrap/generate_bootstrap_plans
- hadrian/bootstrap/hadrian-bootstrap-gen.cabal
- hadrian/bootstrap/plan-9_10_1.json
- hadrian/bootstrap/plan-9_6_5.json → hadrian/bootstrap/plan-9_10_2.json
- hadrian/bootstrap/plan-9_6_6.json → hadrian/bootstrap/plan-9_12_1.json
- hadrian/bootstrap/plan-9_6_4.json → hadrian/bootstrap/plan-9_12_2.json
- − hadrian/bootstrap/plan-9_6_1.json
- − hadrian/bootstrap/plan-9_6_2.json
- − hadrian/bootstrap/plan-9_6_3.json
- − hadrian/bootstrap/plan-9_8_1.json
- − hadrian/bootstrap/plan-9_8_2.json
- hadrian/bootstrap/plan-bootstrap-9_10_1.json
- hadrian/bootstrap/plan-bootstrap-9_6_5.json → hadrian/bootstrap/plan-bootstrap-9_10_2.json
- hadrian/bootstrap/plan-bootstrap-9_6_6.json → hadrian/bootstrap/plan-bootstrap-9_12_1.json
- hadrian/bootstrap/plan-bootstrap-9_8_1.json → hadrian/bootstrap/plan-bootstrap-9_12_2.json
- − hadrian/bootstrap/plan-bootstrap-9_6_1.json
- − hadrian/bootstrap/plan-bootstrap-9_6_2.json
- − hadrian/bootstrap/plan-bootstrap-9_6_3.json
- − hadrian/bootstrap/plan-bootstrap-9_6_4.json
- − hadrian/bootstrap/plan-bootstrap-9_8_2.json
- hadrian/bootstrap/src/Main.hs
- hadrian/hadrian.cabal
- hadrian/src/Settings/Builders/RunTest.hs
- hadrian/src/Settings/Default.hs
- hadrian/src/Settings/Packages.hs
- hadrian/stack.yaml
- hadrian/stack.yaml.lock
- libffi-tarballs
- libraries/Cabal
- libraries/base/base.cabal.in
- libraries/base/changelog.md
- libraries/base/src/Control/Exception/Backtrace.hs
- libraries/base/src/Data/List/NonEmpty.hs
- libraries/base/src/GHC/Exts.hs
- − libraries/base/src/GHC/IOPort.hs
- libraries/base/src/System/Console/GetOpt.hs
- libraries/directory
- libraries/ghc-bignum/changelog.md
- libraries/ghc-experimental/ghc-experimental.cabal.in
- + libraries/ghc-experimental/src/GHC/Exception/Backtrace/Experimental.hs
- + libraries/ghc-experimental/src/GHC/Stack/Annotation/Experimental.hs
- libraries/ghc-heap/GHC/Exts/Heap/ClosureTypes.hs
- libraries/ghc-heap/GHC/Exts/Heap/Closures.hs
- libraries/ghc-heap/GHC/Exts/Stack.hs
- libraries/ghc-heap/GHC/Exts/Stack/Constants.hsc
- libraries/ghc-heap/GHC/Exts/Stack/Decode.hs
- + libraries/ghc-heap/tests/stack-annotation/Makefile
- + libraries/ghc-heap/tests/stack-annotation/TestUtils.hs
- + libraries/ghc-heap/tests/stack-annotation/all.T
- + libraries/ghc-heap/tests/stack-annotation/ann_frame001.hs
- + libraries/ghc-heap/tests/stack-annotation/ann_frame001.stdout
- + libraries/ghc-heap/tests/stack-annotation/ann_frame002.hs
- + libraries/ghc-heap/tests/stack-annotation/ann_frame002.stdout
- + libraries/ghc-heap/tests/stack-annotation/ann_frame003.hs
- + libraries/ghc-heap/tests/stack-annotation/ann_frame003.stdout
- + libraries/ghc-heap/tests/stack-annotation/ann_frame004.hs
- + libraries/ghc-heap/tests/stack-annotation/ann_frame004.stdout
- libraries/ghc-internal/cbits/pdep.c
- libraries/ghc-internal/cbits/pext.c
- libraries/ghc-internal/ghc-internal.cabal.in
- libraries/ghc-internal/src/GHC/Internal/Bignum/Natural.hs
- libraries/ghc-internal/src/GHC/Internal/ClosureTypes.hs
- libraries/ghc-internal/src/GHC/Internal/Data/OldList.hs
- libraries/ghc-internal/src/GHC/Internal/Event/Windows.hsc
- libraries/ghc-internal/src/GHC/Internal/Event/Windows/Thread.hs
- libraries/ghc-internal/src/GHC/Internal/Exception.hs
- libraries/ghc-internal/src/GHC/Internal/Exception/Backtrace.hs
- libraries/ghc-internal/src/GHC/Internal/Exception/Backtrace.hs-boot
- libraries/ghc-internal/src/GHC/Internal/Exts.hs
- libraries/ghc-internal/src/GHC/Internal/IO/Buffer.hs
- libraries/ghc-internal/src/GHC/Internal/IO/Windows/Handle.hsc
- − libraries/ghc-internal/src/GHC/Internal/IOPort.hs
- libraries/ghc-internal/src/GHC/Internal/Prim/PtrEq.hs
- libraries/ghc-internal/src/GHC/Internal/TH/Lib.hs
- libraries/ghc-internal/src/GHC/Internal/TH/Lift.hs
- libraries/ghc-internal/src/GHC/Internal/TH/Quote.hs
- libraries/ghc-internal/src/GHC/Internal/TH/Syntax.hs
- + libraries/ghc-internal/tests/Makefile
- + libraries/ghc-internal/tests/all.T
- + libraries/ghc-internal/tests/backtraces/Makefile
- + libraries/ghc-internal/tests/backtraces/T14532a.hs
- + libraries/ghc-internal/tests/backtraces/T14532a.stdout
- + libraries/ghc-internal/tests/backtraces/T14532b.hs
- + libraries/ghc-internal/tests/backtraces/T14532b.stdout
- + libraries/ghc-internal/tests/backtraces/all.T
- libraries/ghc-prim/changelog.md
- libraries/ghci/GHCi/CreateBCO.hs
- libraries/ghci/GHCi/TH.hs
- libraries/ghci/ghci.cabal.in
- libraries/hpc
- libraries/template-haskell/Language/Haskell/TH/Lib.hs
- libraries/template-haskell/Language/Haskell/TH/Quote.hs
- libraries/template-haskell/Language/Haskell/TH/Syntax.hs
- libraries/template-haskell/changelog.md
- libraries/template-haskell/tests/all.T
- libraries/text
- libraries/time
- libraries/unix
- m4/find_python.m4
- rts/ClosureFlags.c
- rts/Disassembler.c
- rts/Hash.c
- rts/IPE.c
- rts/Interpreter.c
- rts/LdvProfile.c
- rts/Messages.c
- rts/Prelude.h
- rts/PrimOps.cmm
- rts/Printer.c
- rts/ProfHeap.c
- rts/RetainerProfile.c
- rts/RtsSymbols.c
- rts/StgMiscClosures.cmm
- rts/TraverseHeap.c
- rts/Updates.h
- rts/eventlog/EventLog.c
- rts/external-symbols.list.in
- rts/include/rts/IPE.h
- rts/include/rts/storage/ClosureTypes.h
- rts/include/rts/storage/Closures.h
- rts/include/stg/MiscClosures.h
- rts/include/stg/SMP.h
- rts/js/mem.js
- rts/js/profiling.js
- rts/posix/ticker/Pthread.c
- rts/posix/ticker/TimerFd.c
- rts/rts.cabal
- rts/sm/Compact.c
- rts/sm/Evac.c
- rts/sm/NonMovingMark.c
- rts/sm/Sanity.c
- rts/sm/Scav.c
- rts/win32/AsyncWinIO.c
- rts/win32/libHSghc-internal.def
- testsuite/config/ghc
- testsuite/driver/testlib.py
- testsuite/tests/arrows/should_compile/T21301.stderr
- testsuite/tests/core-to-stg/T24124.stderr
- testsuite/tests/corelint/LintEtaExpand.stderr
- testsuite/tests/deSugar/should_compile/T2431.stderr
- testsuite/tests/deSugar/should_fail/DsStrictFail.stderr
- testsuite/tests/deSugar/should_run/T20024.stderr
- testsuite/tests/deSugar/should_run/dsrun005.stderr
- testsuite/tests/deSugar/should_run/dsrun007.stderr
- testsuite/tests/deSugar/should_run/dsrun008.stderr
- testsuite/tests/deriving/should_run/T9576.stderr
- testsuite/tests/dmdanal/should_compile/T16029.stdout
- testsuite/tests/dmdanal/sigs/T21119.stderr
- testsuite/tests/dmdanal/sigs/T21888.stderr
- testsuite/tests/gadt/T12468.stderr
- testsuite/tests/ghc-e/should_fail/T24172.stderr
- testsuite/tests/ghci.debugger/scripts/break011.stdout
- testsuite/tests/ghci.debugger/scripts/break024.stdout
- testsuite/tests/ghci/scripts/Defer02.stderr
- testsuite/tests/ghci/scripts/T15325.stderr
- testsuite/tests/ghci/scripts/T8353.stderr
- testsuite/tests/ghci/scripts/ghci038.stdout
- testsuite/tests/hiefile/should_run/TestUtils.hs
- testsuite/tests/hpc/recsel/recsel.hs
- testsuite/tests/hpc/recsel/recsel.stdout
- testsuite/tests/indexed-types/should_compile/T2238.hs
- testsuite/tests/indexed-types/should_fail/T5439.stderr
- testsuite/tests/interface-stability/base-exports.stdout
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- testsuite/tests/interface-stability/ghc-prim-exports.stdout-mingw32
- testsuite/tests/interface-stability/template-haskell-exports.stdout
- + testsuite/tests/llvm/should_run/T20645.hs
- + testsuite/tests/llvm/should_run/T20645.stdout
- testsuite/tests/llvm/should_run/all.T
- − testsuite/tests/module/T21752.stderr
- testsuite/tests/module/mod150.stderr
- testsuite/tests/module/mod151.stderr
- testsuite/tests/module/mod152.stderr
- testsuite/tests/module/mod153.stderr
- testsuite/tests/numeric/should_compile/T15547.stderr
- testsuite/tests/numeric/should_compile/T23907.stderr
- + testsuite/tests/numeric/should_compile/T26229.hs
- testsuite/tests/numeric/should_compile/all.T
- + testsuite/tests/numeric/should_run/T18619.hs
- + testsuite/tests/numeric/should_run/T18619.stderr
- + testsuite/tests/numeric/should_run/T26230.hs
- + testsuite/tests/numeric/should_run/T26230.stdout
- testsuite/tests/numeric/should_run/all.T
- testsuite/tests/numeric/should_run/foundation.hs
- testsuite/tests/overloadedrecflds/should_fail/T18999_NoDisambiguateRecordFields.stderr
- + testsuite/tests/overloadedrecflds/should_run/T26295.hs
- + testsuite/tests/overloadedrecflds/should_run/T26295.stdout
- testsuite/tests/overloadedrecflds/should_run/all.T
- testsuite/tests/parser/should_compile/DumpRenamedAst.stderr
- testsuite/tests/parser/should_compile/T14189.stderr
- testsuite/tests/parser/should_compile/T19082.stderr
- testsuite/tests/partial-sigs/should_compile/T10403.stderr
- + testsuite/tests/partial-sigs/should_compile/T26256.hs
- + testsuite/tests/partial-sigs/should_compile/T26256.stderr
- testsuite/tests/partial-sigs/should_compile/all.T
- testsuite/tests/partial-sigs/should_fail/T10615.stderr
- testsuite/tests/patsyn/should_run/ghci.stderr
- testsuite/tests/perf/compiler/hard_hole_fits.stderr
- testsuite/tests/plugins/Makefile
- + testsuite/tests/plugins/T21730-plugin/Makefile
- + testsuite/tests/plugins/T21730-plugin/Setup.hs
- + testsuite/tests/plugins/T21730-plugin/T21730-plugin.cabal
- + testsuite/tests/plugins/T21730-plugin/T21730_Plugin.hs
- + testsuite/tests/plugins/T21730.hs
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- testsuite/tests/primops/should_run/UnliftedIOPort.hs
- testsuite/tests/primops/should_run/all.T
- testsuite/tests/quasiquotation/T4491/test.T
- testsuite/tests/quotes/LiftErrMsg.stderr
- testsuite/tests/quotes/LiftErrMsgDefer.stderr
- testsuite/tests/quotes/LiftErrMsgTyped.stderr
- testsuite/tests/rename/should_compile/T22513d.stderr
- testsuite/tests/rename/should_compile/T22513e.stderr
- testsuite/tests/rename/should_compile/T22513f.stderr
- testsuite/tests/rename/should_compile/T22513g.stderr
- testsuite/tests/rename/should_compile/T22513h.stderr
- testsuite/tests/rename/should_compile/T22513i.stderr
- testsuite/tests/rename/should_compile/rn039.ghc.stderr
- testsuite/tests/rename/should_fail/T15487.stderr
- testsuite/tests/rename/should_fail/T18740a.stderr
- testsuite/tests/rename/should_fail/rnfail044.stderr
- + testsuite/tests/rep-poly/NoEtaRequired.hs
- testsuite/tests/rep-poly/T21906.stderr
- testsuite/tests/rep-poly/all.T
- testsuite/tests/roles/should_compile/Roles14.stderr
- testsuite/tests/roles/should_compile/Roles3.stderr
- testsuite/tests/roles/should_compile/Roles4.stderr
- testsuite/tests/rts/flags/all.T
- testsuite/tests/rts/ipe/ipeMap.c
- testsuite/tests/rts/ipe/ipe_lib.c
- testsuite/tests/safeHaskell/flags/SafeFlags17.stderr
- testsuite/tests/safeHaskell/safeLanguage/SafeLang15.stderr
- testsuite/tests/simplCore/should_compile/DataToTagFamilyScrut.stderr
- testsuite/tests/simplCore/should_compile/T15205.stderr
- testsuite/tests/simplCore/should_compile/T17366.stderr
- testsuite/tests/simplCore/should_compile/T17966.stderr
- testsuite/tests/simplCore/should_compile/T22309.stderr
- testsuite/tests/simplCore/should_compile/T22375DataFamily.stderr
- testsuite/tests/simplCore/should_compile/T23307.stderr
- testsuite/tests/simplCore/should_compile/T23307a.stderr
- + testsuite/tests/simplCore/should_compile/T24606.hs
- testsuite/tests/simplCore/should_compile/T25389.stderr
- testsuite/tests/simplCore/should_compile/T25713.stderr
- testsuite/tests/simplCore/should_compile/T7360.stderr
- testsuite/tests/simplCore/should_compile/all.T
- testsuite/tests/simplStg/should_compile/T15226b.stderr
- + testsuite/tests/splice-imports/DodgyLevelExport.hs
- + testsuite/tests/splice-imports/DodgyLevelExport.stderr
- + testsuite/tests/splice-imports/DodgyLevelExportA.hs
- + testsuite/tests/splice-imports/LevelImportExports.hs
- + testsuite/tests/splice-imports/LevelImportExports.stdout
- + testsuite/tests/splice-imports/LevelImportExportsA.hs
- testsuite/tests/splice-imports/Makefile
- + testsuite/tests/splice-imports/ModuleExport.hs
- + testsuite/tests/splice-imports/ModuleExport.stderr
- + testsuite/tests/splice-imports/ModuleExportA.hs
- + testsuite/tests/splice-imports/ModuleExportB.hs
- + testsuite/tests/splice-imports/T26090.hs
- + testsuite/tests/splice-imports/T26090.stderr
- + testsuite/tests/splice-imports/T26090A.hs
- testsuite/tests/splice-imports/all.T
- testsuite/tests/tcplugins/CtIdPlugin.hs
- testsuite/tests/th/Makefile
- testsuite/tests/th/T10267.stderr
- testsuite/tests/th/T14627.stderr
- testsuite/tests/th/T15321.stderr
- testsuite/tests/type-data/should_run/T22332a.stderr
- testsuite/tests/typecheck/should_compile/Makefile
- testsuite/tests/typecheck/should_compile/T12763.stderr
- testsuite/tests/typecheck/should_compile/T13050.stderr
- testsuite/tests/typecheck/should_compile/T14273.stderr
- testsuite/tests/typecheck/should_compile/T14590.stderr
- testsuite/tests/typecheck/should_compile/T14774.stdout
- testsuite/tests/typecheck/should_compile/T18406b.stderr
- testsuite/tests/typecheck/should_compile/T18529.stderr
- testsuite/tests/typecheck/should_compile/T25180.stderr
- + testsuite/tests/typecheck/should_compile/T25992a.hs
- + testsuite/tests/typecheck/should_compile/T26225.hs
- + testsuite/tests/typecheck/should_compile/T26225b.hs
- + testsuite/tests/typecheck/should_compile/T26256a.hs
- testsuite/tests/typecheck/should_compile/T9497a.stderr
- testsuite/tests/typecheck/should_compile/all.T
- testsuite/tests/typecheck/should_compile/refinement_hole_fits.stderr
- testsuite/tests/typecheck/should_compile/subsumption_sort_hole_fits.stderr
- − testsuite/tests/typecheck/should_fail/T12563.stderr
- testsuite/tests/typecheck/should_fail/T14618.stderr
- testsuite/tests/typecheck/should_fail/T14884.stderr
- testsuite/tests/typecheck/should_fail/T21130.stderr
- testsuite/tests/typecheck/should_fail/T23739b.stderr
- testsuite/tests/typecheck/should_fail/T23739c.stderr
- + testsuite/tests/typecheck/should_fail/T26255a.hs
- + testsuite/tests/typecheck/should_fail/T26255a.stderr
- + testsuite/tests/typecheck/should_fail/T26255b.hs
- + testsuite/tests/typecheck/should_fail/T26255b.stderr
- testsuite/tests/typecheck/should_fail/T6022.stderr
- testsuite/tests/typecheck/should_fail/T8883.stderr
- testsuite/tests/typecheck/should_fail/T9497d.stderr
- testsuite/tests/typecheck/should_fail/all.T
- testsuite/tests/typecheck/should_fail/tcfail037.stderr
- testsuite/tests/typecheck/should_fail/tcfail140.stderr
- testsuite/tests/typecheck/should_run/T10284.stderr
- testsuite/tests/typecheck/should_run/T13838.stderr
- testsuite/tests/typecheck/should_run/T9497a-run.stderr
- testsuite/tests/typecheck/should_run/T9497b-run.stderr
- testsuite/tests/typecheck/should_run/T9497c-run.stderr
- testsuite/tests/unboxedsums/unpack_sums_7.stdout
- testsuite/tests/unsatisfiable/T23816.stderr
- testsuite/tests/unsatisfiable/UnsatDefer.stderr
- testsuite/tests/vdq-rta/should_fail/T23738_fail_pun.stderr
- testsuite/tests/wasm/should_run/control-flow/LoadCmmGroup.hs
- testsuite/tests/wasm/should_run/control-flow/RunWasm.hs
- utils/deriveConstants/Main.hs
- utils/genprimopcode/Lexer.x
- utils/genprimopcode/Main.hs
- utils/genprimopcode/Parser.y
- utils/genprimopcode/ParserM.hs
- utils/genprimopcode/Syntax.hs
- utils/haddock/haddock-api/src/Haddock/InterfaceFile.hs
The diff was not included because it is too large.
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/6dcf6444d49189a5081b78bb81d771…
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View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/6dcf6444d49189a5081b78bb81d771…
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