[Git][ghc/ghc][wip/marge_bot_batch_merge_job] 9 commits: Implement modifiers syntax.
by Marge Bot (＠marge-bot) 08 Apr '26
by Marge Bot (＠marge-bot) 08 Apr '26
08 Apr '26
Marge Bot pushed to branch wip/marge_bot_batch_merge_job at Glasgow Haskell Compiler / GHC
Commits:
b9272bdf by Phil Hazelden at 2026-04-08T16:18:44-04:00
Implement modifiers syntax.
The `%m` syntax of linear types is now accepted in more places, to allow
use by future extensions, though so far linear types is still the only
consumer.
This may break existing code where it
* Uses -XLinearTypes.
* Has code of the form `a %m -> b`, where `m` can't be inferred to be
kind Multiplicity.
The code can be fixed either by adding a kind annotation, or by setting
`-XLinearTypes -XNoModifiers`.
Proposal:
https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0370-m…
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960a3365 by Zubin Duggal at 2026-04-08T16:18:46-04:00
hadrian: Don't include the package hash in the haddock directory
Since GHC 9.8 and hash_unit_ids, haddock urls have looked like`ghc-9.10.3/doc/html/libraries/base-4.20.2.0-39f9/**/*.html`
The inclusion of the hash makes it hard for downstream non-boot packages to properly link to these files, as the hash is not
part of a standard cabal substitution.
Since we only build one version of each package, we don't need the hash to disambiguate anything, we can just remove it.
Fixes #26635
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3748f8c7 by ARATA Mizuki at 2026-04-08T16:18:59-04:00
testsuite: Allow multiple ways to be run by setting multiple command-line options
This patch allows multiple `--test-way`s to take effect, like:
$ hadrian/build test --test-way=normal --test-way=llvm
Previously, only one way was run if the test speed was 'normal' or 'fast'.
Closes #26926
Co-authored-by: sheaf <sam.derbyshire(a)gmail.com>
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e2573a9d by Teo Camarasu at 2026-04-08T16:19:02-04:00
doc: improve eventlog-flush-interval flag documentation
We mention the performance cost and how this flag can be turned off.
Resolves #27056
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f1102ca5 by Teo Camarasu at 2026-04-08T16:19:02-04:00
docs/user_guide: fix typo
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74d77701 by Simon Jakobi at 2026-04-08T16:19:04-04:00
Fix -dsuppress-uniques for free variables in demand signatures
Before: Str=b{sXyZ->S}
With this patch: Str=b{S}
T13143.stderr is updated accordingly.
Fixes #27106.
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7a25b9d8 by Simon Jakobi at 2026-04-08T16:19:05-04:00
Documentation fixes for demand signature notation
Fixes #27115.
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9eccb354 by Simon Jakobi at 2026-04-08T16:19:06-04:00
Use upsert for non-deleting map updates
Some compiler functions were using `alter`, despite never removing
any entries: they only update an existing entry or insert a new one.
These functions are converted to using `upsert`:
alter :: (Maybe a -> Maybe a) -> Key -> Map a -> Map a
upsert :: (Maybe a -> a) -> Key -> Map a -> Map a
`upsert` variants are also added to APIs of the various Word64Map
wrapper types.
The precedent for this `upsert` operation is in the containers library:
see https://github.com/haskell/containers/pull/1145
Metrics: compile_time/bytes allocated
-------------------------------------
geo. mean: -0.1%
minimum: -0.5%
maximum: +0.0%
Resolves #27140.
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4754b1cb by Cheng Shao at 2026-04-08T16:19:07-04:00
testsuite: fix testsuite run for +ipe again
This patch makes the +ipe flavour transformer pass the entire
testsuite again by dropping stdout/stderr checks of certain tests that
are sensitive to stack layout changes with `+ipe`. Related: #26799.
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200 changed files:
- compiler/GHC/Cmm/CommonBlockElim.hs
- compiler/GHC/Cmm/Dataflow/Graph.hs
- compiler/GHC/Cmm/Dataflow/Label.hs
- compiler/GHC/CmmToAsm/CFG.hs
- compiler/GHC/Core/Multiplicity.hs
- compiler/GHC/Core/Opt/DmdAnal.hs
- compiler/GHC/Core/Opt/Simplify/Iteration.hs
- compiler/GHC/Core/RoughMap.hs
- compiler/GHC/Core/TyCo/Ppr.hs
- compiler/GHC/Core/TyCon/Env.hs
- compiler/GHC/Core/Unify.hs
- compiler/GHC/Data/FastString/Env.hs
- compiler/GHC/Data/Word64Map/Internal.hs
- compiler/GHC/Data/Word64Map/Lazy.hs
- compiler/GHC/Data/Word64Map/Strict.hs
- compiler/GHC/Data/Word64Map/Strict/Internal.hs
- compiler/GHC/Driver/Flags.hs
- compiler/GHC/Driver/Session.hs
- compiler/GHC/Hs/Binds.hs
- compiler/GHC/Hs/Decls.hs
- compiler/GHC/Hs/Expr.hs
- compiler/GHC/Hs/Instances.hs
- compiler/GHC/Hs/Pat.hs
- compiler/GHC/Hs/Syn/Type.hs
- compiler/GHC/Hs/Type.hs
- compiler/GHC/Hs/Utils.hs
- compiler/GHC/HsToCore/Binds.hs
- compiler/GHC/HsToCore/Docs.hs
- compiler/GHC/HsToCore/Errors/Ppr.hs
- compiler/GHC/HsToCore/Errors/Types.hs
- compiler/GHC/HsToCore/Expr.hs
- compiler/GHC/HsToCore/Match.hs
- compiler/GHC/HsToCore/Pmc/Desugar.hs
- compiler/GHC/HsToCore/Quote.hs
- compiler/GHC/HsToCore/Ticks.hs
- compiler/GHC/Iface/Ext/Ast.hs
- compiler/GHC/Iface/Type.hs
- compiler/GHC/Parser.y
- compiler/GHC/Parser/Errors/Ppr.hs
- compiler/GHC/Parser/Errors/Types.hs
- compiler/GHC/Parser/Lexer.x
- compiler/GHC/Parser/PostProcess.hs
- compiler/GHC/Parser/PostProcess/Haddock.hs
- compiler/GHC/Parser/Types.hs
- compiler/GHC/Rename/Bind.hs
- compiler/GHC/Rename/Expr.hs
- compiler/GHC/Rename/HsType.hs
- compiler/GHC/Rename/Module.hs
- compiler/GHC/Rename/Names.hs
- compiler/GHC/Rename/Pat.hs
- compiler/GHC/Tc/Deriv/Generate.hs
- compiler/GHC/Tc/Errors/Ppr.hs
- compiler/GHC/Tc/Errors/Types.hs
- compiler/GHC/Tc/Gen/App.hs
- compiler/GHC/Tc/Gen/Bind.hs
- compiler/GHC/Tc/Gen/Default.hs
- compiler/GHC/Tc/Gen/Foreign.hs
- compiler/GHC/Tc/Gen/HsType.hs
- compiler/GHC/Tc/Gen/Pat.hs
- compiler/GHC/Tc/Gen/Sig.hs
- compiler/GHC/Tc/Solver/Types.hs
- compiler/GHC/Tc/TyCl.hs
- compiler/GHC/Tc/TyCl/PatSyn.hs
- compiler/GHC/Tc/Types/Evidence.hs
- compiler/GHC/Tc/Utils/Env.hs
- compiler/GHC/Tc/Zonk/Type.hs
- compiler/GHC/ThToHs.hs
- compiler/GHC/Types/Demand.hs
- compiler/GHC/Types/Error/Codes.hs
- compiler/GHC/Types/Hint.hs
- compiler/GHC/Types/Hint/Ppr.hs
- compiler/GHC/Types/Name/Env.hs
- compiler/GHC/Types/Name/Occurrence.hs
- compiler/GHC/Types/Unique/DFM.hs
- compiler/GHC/Types/Unique/FM.hs
- compiler/GHC/Types/Var/Env.hs
- compiler/GHC/Wasm/ControlFlow/FromCmm.hs
- compiler/Language/Haskell/Syntax/Binds.hs
- compiler/Language/Haskell/Syntax/Decls.hs
- compiler/Language/Haskell/Syntax/Decls/Foreign.hs
- compiler/Language/Haskell/Syntax/Expr.hs
- compiler/Language/Haskell/Syntax/Extension.hs
- compiler/Language/Haskell/Syntax/Pat.hs
- compiler/Language/Haskell/Syntax/Type.hs
- docs/users_guide/9.16.1-notes.rst
- docs/users_guide/exts/linear_types.rst
- + docs/users_guide/exts/modifiers.rst
- docs/users_guide/exts/syntax.rst
- docs/users_guide/runtime_control.rst
- docs/users_guide/using-optimisation.rst
- docs/users_guide/using-warnings.rst
- hadrian/bindist/Makefile
- hadrian/src/CommandLine.hs
- hadrian/src/Context.hs
- hadrian/src/Settings/Builders/Cabal.hs
- libraries/ghc-experimental/tests/backtraces/all.T
- libraries/ghc-internal/src/GHC/Internal/LanguageExtensions.hs
- libraries/ghc-internal/tests/stack-annotation/all.T
- testsuite/driver/testlib.py
- testsuite/tests/dmdanal/should_compile/T13143.stderr
- + testsuite/tests/dmdanal/should_compile/T27106.hs
- + testsuite/tests/dmdanal/should_compile/T27106.stderr
- testsuite/tests/dmdanal/should_compile/all.T
- testsuite/tests/driver/T4437.hs
- testsuite/tests/ghc-api/T25121_status.stdout
- testsuite/tests/ghc-api/exactprint/Test20239.stderr
- testsuite/tests/haddock/should_compile_flag_haddock/T17544.stderr
- testsuite/tests/haddock/should_compile_flag_haddock/T17544_kw.stderr
- testsuite/tests/haddock/should_compile_flag_haddock/T24221.stderr
- testsuite/tests/haddock/should_compile_flag_haddock/haddockLinear.hs
- testsuite/tests/haddock/should_compile_flag_haddock/haddockLinear.stderr
- testsuite/tests/interface-stability/template-haskell-exports.stdout
- testsuite/tests/linear/should_compile/Linear1Rule.hs
- testsuite/tests/linear/should_compile/MultConstructor.hs
- testsuite/tests/linear/should_compile/NonLinearRecord.hs
- testsuite/tests/linear/should_compile/OldList.hs
- testsuite/tests/linear/should_compile/T19400.hs
- testsuite/tests/linear/should_compile/T22546.hs
- testsuite/tests/linear/should_compile/T23025.hs
- testsuite/tests/linear/should_compile/T26332.hs
- testsuite/tests/linear/should_fail/LinearErrOrigin.hs
- testsuite/tests/linear/should_fail/LinearErrOrigin.stderr
- testsuite/tests/linear/should_fail/LinearLet10.hs
- testsuite/tests/linear/should_fail/LinearLet10.stderr
- testsuite/tests/linear/should_fail/LinearPartialSig.hs
- testsuite/tests/linear/should_fail/LinearPartialSig.stderr
- testsuite/tests/linear/should_fail/LinearRole.hs
- + testsuite/tests/linear/should_fail/LinearUnknownModifierKind.hs
- + testsuite/tests/linear/should_fail/LinearUnknownModifierKind.stderr
- testsuite/tests/linear/should_fail/LinearVar.hs
- testsuite/tests/linear/should_fail/LinearVar.stderr
- testsuite/tests/linear/should_fail/T18888_datakinds.hs
- testsuite/tests/linear/should_fail/T18888_datakinds.stderr
- testsuite/tests/linear/should_fail/T19361.hs
- testsuite/tests/linear/should_fail/T19361.stderr
- testsuite/tests/linear/should_fail/T20083.hs
- testsuite/tests/linear/should_fail/T20083.stderr
- testsuite/tests/linear/should_fail/T21278.hs
- testsuite/tests/linear/should_fail/T21278.stderr
- + testsuite/tests/linear/should_fail/TooManyMultiplicities.hs
- + testsuite/tests/linear/should_fail/TooManyMultiplicities.stderr
- + testsuite/tests/linear/should_fail/TooManyMultiplicitiesU.hs
- + testsuite/tests/linear/should_fail/TooManyMultiplicitiesU.stderr
- testsuite/tests/linear/should_fail/all.T
- + testsuite/tests/modifiers/Makefile
- + testsuite/tests/modifiers/should_compile/LinearNoModifiers.hs
- + testsuite/tests/modifiers/should_compile/Makefile
- + testsuite/tests/modifiers/should_compile/Modifier1Linear.hs
- + testsuite/tests/modifiers/should_compile/Modifier1Linear.stderr
- + testsuite/tests/modifiers/should_compile/Modifiers.hs
- + testsuite/tests/modifiers/should_compile/Modifiers.stderr
- + testsuite/tests/modifiers/should_compile/ModifiersSuggestLinear.hs
- + testsuite/tests/modifiers/should_compile/ModifiersSuggestLinear.stderr
- + testsuite/tests/modifiers/should_compile/all.T
- + testsuite/tests/modifiers/should_fail/Makefile
- + testsuite/tests/modifiers/should_fail/ModifiersExprUnexpectedInQuote.hs
- + testsuite/tests/modifiers/should_fail/ModifiersExprUnexpectedInQuote.stderr
- + testsuite/tests/modifiers/should_fail/ModifiersForbiddenHere.hs
- + testsuite/tests/modifiers/should_fail/ModifiersForbiddenHere.stderr
- + testsuite/tests/modifiers/should_fail/ModifiersNoExt.hs
- + testsuite/tests/modifiers/should_fail/ModifiersNoExt.stderr
- + testsuite/tests/modifiers/should_fail/ModifiersUnexpectedInQuote.hs
- + testsuite/tests/modifiers/should_fail/ModifiersUnexpectedInQuote.stderr
- + testsuite/tests/modifiers/should_fail/ModifiersUnknownKind.hs
- + testsuite/tests/modifiers/should_fail/ModifiersUnknownKind.stderr
- + testsuite/tests/modifiers/should_fail/all.T
- testsuite/tests/parser/should_compile/DumpParsedAst.stderr
- testsuite/tests/parser/should_compile/DumpRenamedAst.stderr
- testsuite/tests/parser/should_compile/DumpSemis.stderr
- testsuite/tests/parser/should_compile/KindSigs.stderr
- testsuite/tests/parser/should_compile/T14189.stderr
- testsuite/tests/parser/should_compile/T15323.stderr
- testsuite/tests/parser/should_compile/T18834a.stderr
- testsuite/tests/parser/should_compile/T20452.stderr
- testsuite/tests/parser/should_compile/T23315/T23315.stderr
- testsuite/tests/parser/should_fail/T19928.stderr
- testsuite/tests/printer/Makefile
- + testsuite/tests/printer/PprModifiers.hs
- testsuite/tests/printer/T18791.stderr
- testsuite/tests/printer/Test20315.hs
- testsuite/tests/printer/Test20315.stderr
- testsuite/tests/printer/Test24533.stdout
- testsuite/tests/printer/all.T
- testsuite/tests/rename/should_compile/T22478a.hs
- testsuite/tests/typecheck/no_skolem_info/T20232.hs
- testsuite/tests/typecheck/no_skolem_info/T20232.stderr
- utils/check-exact/ExactPrint.hs
- utils/check-exact/Main.hs
- utils/check-exact/Transform.hs
- utils/haddock/haddock-api/src/Haddock/Backends/Hoogle.hs
- utils/haddock/haddock-api/src/Haddock/Backends/LaTeX.hs
- utils/haddock/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs
- utils/haddock/haddock-api/src/Haddock/Convert.hs
- utils/haddock/haddock-api/src/Haddock/GhcUtils.hs
- utils/haddock/haddock-api/src/Haddock/Interface/Create.hs
- utils/haddock/haddock-api/src/Haddock/Interface/Rename.hs
- utils/haddock/haddock-api/src/Haddock/Interface/RenameType.hs
- utils/haddock/haddock-api/src/Haddock/Types.hs
- utils/haddock/html-test/src/LinearTypes.hs
- utils/haddock/latex-test/src/LinearTypes/LinearTypes.hs
The diff was not included because it is too large.
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/5207fe461fec323217bcef90e321fd…
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[Git][ghc/ghc][wip/spj-reinstallable-base] 20 commits: base: improve error message for Data.Char.chr
by Simon Peyton Jones (＠simonpj) 08 Apr '26
by Simon Peyton Jones (＠simonpj) 08 Apr '26
08 Apr '26
Simon Peyton Jones pushed to branch wip/spj-reinstallable-base at Glasgow Haskell Compiler / GHC
Commits:
502e6ffe by Andrew Lelechenko at 2026-04-07T04:47:21-04:00
base: improve error message for Data.Char.chr
As per https://github.com/haskell/core-libraries-committee/issues/384
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b21bd52e by Simon Peyton Jones at 2026-04-07T04:48:07-04:00
Refactor FunResCtxt a bit
Fixes #27154
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7fe84ea5 by Zubin Duggal at 2026-04-07T19:11:52+05:30
compiler: Warn when -finfo-table-map is used with -fllvm
These are currently not supported together.
Fixes #26435
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4a45a7da by Matthew Pickering at 2026-04-08T04:37:29-04:00
packaging: correctly propagate build/host/target to bindist configure script
At the moment the host and target which we will produce a compiler for
is fixed at the initial configure time. Therefore we need to persist
the choice made at this time into the installation bindist as well so we
look for the right tools, with the right prefixes at install time.
In the future, we want to provide a bit more control about what kind of
bindist we produce so the logic about what the host/target will have to
be written by hadrian rather than persisted by the configure script. In
particular with cross compilers we want to either build a normal stage 2
cross bindist or a stage 3 bindist, which creates a bindist which has a
native compiler for the target platform.
Fixes #21970
Co-authored-by: Sven Tennie <sven.tennie(a)gmail.com>
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b0950df6 by Sven Tennie at 2026-04-08T04:37:29-04:00
Cross --host and --target no longer required for cross (#21970)
We set sane defaults in the configure script. Thus, these paramenters
aren't required any longer.
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fef35216 by Sven Tennie at 2026-04-08T04:37:30-04:00
ci: Define USER_CONF_CC_OPTS_STAGE2 for aarch64/mingw
ghc-toolchain doesn't see $CONF_CC_OPTS_STAGE2 when the bindist gets
configured. So, the hack to override the compiler gets lost.
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8dd6f453 by Cheng Shao at 2026-04-08T04:38:11-04:00
ghci: use ShortByteString for LookupSymbol/LookupSymbolInDLL/LookupClosure messages
This patch refactors ghci to use `ShortByteString` for
`LookupSymbol`/`LookupSymbolInDLL`/`LookupClosure` messages as the
first part of #27147.
Co-authored-by: Codex <codex(a)openai.com>
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371ef200 by Cheng Shao at 2026-04-08T04:38:11-04:00
ghci: use ShortByteString for MkCostCentres message
This patch refactors ghci to use `ShortByteString` for `MkCostCentres`
messages as a first part of #27147. This also considerably lowers the
memory overhead of breakpoints when cost center profiling is enabled.
-------------------------
Metric Decrease:
interpreter_steplocal
-------------------------
Co-authored-by: Codex <codex(a)openai.com>
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2fc5d1c6 by Simon Peyton Jones at 2026-04-08T20:34:46+01:00
Major patch to re-engineer known-key names
This big patch implements the New Plan for known-key names,
described in #27013.
Read the big Note [Overview of known-key names] in GHC.Types.Name
Moving more into the new mechanism [skip ci]
DOES NOT COMPILE, just work in progress
More more stuff into the new mechanism
fromString is known-key
Onward
Onward more
Add imports in ghc-internal for known-key names [skip ci]
Add known-key imports for ghc-internal [skip ci]
More [skip ci]
More
Particularly using a proxy for `toList` from the IsList class.
Add Real to known-key names [skip ci]
More....[skip ci]
Lots of Names have moved to new mechanism
BuiltinRules had KnownKeyNameKeys
Start on updating RdrName but incomplete, hence skip ci
Onward [skip ci]
Onward
Added GHC.Tc.Deriv.RdrNames as a new module
Onward
Added -fexclude-known-key-define
Wibble [skip ci]
More
.. forging ahead with KnownOccs
Onward [skip ci]
including renaming GHC.Builtin.Utils to GHC.Builtin
More and more
I think this might actually bootstrap!
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ae4176d7 by Simon Peyton Jones at 2026-04-08T20:34:46+01:00
Wibbles [skip ci]
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e722f745 by Simon Peyton Jones at 2026-04-08T20:34:46+01:00
Wibbles
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902f5300 by Simon Peyton Jones at 2026-04-08T20:34:46+01:00
Wibbles
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81327ea8 by Simon Peyton Jones at 2026-04-08T20:34:46+01:00
Wibble check-exact
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8e34be0f by Simon Peyton Jones at 2026-04-08T20:34:46+01:00
Wibble
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a12a0d4d by Simon Peyton Jones at 2026-04-08T20:34:46+01:00
Update KnownKeyNames
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43920106 by Simon Peyton Jones at 2026-04-08T20:34:47+01:00
More
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9e2b432b by Simon Peyton Jones at 2026-04-08T20:34:47+01:00
Wibble
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1d0e2292 by Simon Peyton Jones at 2026-04-08T20:34:47+01:00
More fixes
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3389169e by Simon Peyton Jones at 2026-04-08T20:34:47+01:00
More and more
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eb02c841 by Simon Peyton Jones at 2026-04-08T20:34:47+01:00
Renaming
GHC.Builtin.Names --> GHC.Builtin.KnownKeys
GHC.Builtin.RdrNames --> GHC.Builtin.KnownOccs
- - - - -
405 changed files:
- .gitlab/ci.sh
- .gitlab/generate-ci/gen_ci.hs
- .gitlab/jobs.yaml
- compiler/GHC/Builtin/Utils.hs → compiler/GHC/Builtin.hs
- compiler/GHC/Builtin/Names.hs → compiler/GHC/Builtin/KnownKeys.hs
- + compiler/GHC/Builtin/KnownOccs.hs
- compiler/GHC/Builtin/PrimOps.hs
- compiler/GHC/Builtin/PrimOps/Ids.hs
- compiler/GHC/Builtin/Names/TH.hs → compiler/GHC/Builtin/TH.hs
- compiler/GHC/Builtin/Types.hs
- compiler/GHC/Builtin/Types/Literals.hs
- compiler/GHC/Builtin/Types/Prim.hs
- compiler/GHC/ByteCode/Breakpoints.hs
- compiler/GHC/Core.hs
- compiler/GHC/Core/Coercion.hs
- compiler/GHC/Core/DataCon.hs
- compiler/GHC/Core/Lint.hs
- compiler/GHC/Core/Make.hs
- compiler/GHC/Core/Multiplicity.hs
- compiler/GHC/Core/Opt/ConstantFold.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/Iteration.hs
- compiler/GHC/Core/Opt/SpecConstr.hs
- compiler/GHC/Core/Ppr.hs
- compiler/GHC/Core/Predicate.hs
- compiler/GHC/Core/Rules.hs
- compiler/GHC/Core/SimpleOpt.hs
- compiler/GHC/Core/Subst.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/Utils.hs
- compiler/GHC/CoreToStg/Prep.hs
- compiler/GHC/Driver/Backpack.hs
- compiler/GHC/Driver/Config/Tidy.hs
- compiler/GHC/Driver/Downsweep.hs
- compiler/GHC/Driver/DynFlags.hs
- compiler/GHC/Driver/Env.hs
- compiler/GHC/Driver/Env/KnotVars.hs
- compiler/GHC/Driver/Flags.hs
- compiler/GHC/Driver/Main.hs
- compiler/GHC/Driver/Pipeline.hs
- compiler/GHC/Driver/Pipeline/Execute.hs
- compiler/GHC/Driver/Plugins.hs
- compiler/GHC/Driver/Session.hs
- compiler/GHC/Hs/Expr.hs
- compiler/GHC/Hs/Type.hs
- compiler/GHC/Hs/Utils.hs
- compiler/GHC/HsToCore.hs
- compiler/GHC/HsToCore/Arrows.hs
- compiler/GHC/HsToCore/Binds.hs
- compiler/GHC/HsToCore/Breakpoints.hs
- compiler/GHC/HsToCore/Expr.hs
- compiler/GHC/HsToCore/Foreign/C.hs
- compiler/GHC/HsToCore/Foreign/Call.hs
- compiler/GHC/HsToCore/Foreign/JavaScript.hs
- compiler/GHC/HsToCore/Foreign/Wasm.hs
- compiler/GHC/HsToCore/ListComp.hs
- compiler/GHC/HsToCore/Match/Literal.hs
- compiler/GHC/HsToCore/Monad.hs
- compiler/GHC/HsToCore/Pmc/Check.hs
- compiler/GHC/HsToCore/Pmc/Desugar.hs
- compiler/GHC/HsToCore/Pmc/Solver.hs
- compiler/GHC/HsToCore/Pmc/Solver/Types.hs
- compiler/GHC/HsToCore/Quote.hs
- compiler/GHC/HsToCore/Types.hs
- compiler/GHC/HsToCore/Utils.hs
- compiler/GHC/Iface/Binary.hs
- compiler/GHC/Iface/Env.hs
- − compiler/GHC/Iface/Env.hs-boot
- compiler/GHC/Iface/Errors/Ppr.hs
- compiler/GHC/Iface/Errors/Types.hs
- compiler/GHC/Iface/Load.hs
- compiler/GHC/Iface/Syntax.hs
- compiler/GHC/Iface/Tidy.hs
- compiler/GHC/Iface/Type.hs
- compiler/GHC/IfaceToCore.hs
- compiler/GHC/Linker/Loader.hs
- compiler/GHC/Parser.y
- compiler/GHC/Parser/Annotation.hs
- compiler/GHC/Parser/Errors/Ppr.hs
- compiler/GHC/Parser/Header.hs
- compiler/GHC/Parser/PostProcess.hs
- compiler/GHC/Plugins.hs
- compiler/GHC/Rename/Bind.hs
- compiler/GHC/Rename/Env.hs
- compiler/GHC/Rename/Expr.hs
- compiler/GHC/Rename/HsType.hs
- compiler/GHC/Rename/Lit.hs
- compiler/GHC/Rename/Module.hs
- compiler/GHC/Rename/Names.hs
- compiler/GHC/Rename/Pat.hs
- compiler/GHC/Rename/Splice.hs
- compiler/GHC/Rename/Unbound.hs
- compiler/GHC/Rename/Utils.hs
- compiler/GHC/Runtime/Context.hs
- compiler/GHC/Runtime/Eval.hs
- compiler/GHC/Runtime/Interpreter.hs
- compiler/GHC/Runtime/Loader.hs
- compiler/GHC/StgToCmm/Bind.hs
- compiler/GHC/StgToCmm/DataCon.hs
- compiler/GHC/StgToCmm/Env.hs
- compiler/GHC/StgToCmm/Ticky.hs
- compiler/GHC/StgToJS/Apply.hs
- compiler/GHC/StgToJS/Expr.hs
- compiler/GHC/StgToJS/Utils.hs
- compiler/GHC/Tc/Deriv.hs
- compiler/GHC/Tc/Deriv/Functor.hs
- compiler/GHC/Tc/Deriv/Generate.hs
- compiler/GHC/Tc/Deriv/Generics.hs
- compiler/GHC/Tc/Deriv/Infer.hs
- compiler/GHC/Tc/Deriv/Utils.hs
- compiler/GHC/Tc/Errors.hs
- compiler/GHC/Tc/Errors/Hole.hs
- compiler/GHC/Tc/Errors/Ppr.hs
- compiler/GHC/Tc/Gen/App.hs
- compiler/GHC/Tc/Gen/Arrow.hs
- compiler/GHC/Tc/Gen/Bind.hs
- compiler/GHC/Tc/Gen/Default.hs
- compiler/GHC/Tc/Gen/Export.hs
- compiler/GHC/Tc/Gen/Expr.hs
- compiler/GHC/Tc/Gen/Foreign.hs
- compiler/GHC/Tc/Gen/Head.hs
- compiler/GHC/Tc/Gen/HsType.hs
- compiler/GHC/Tc/Gen/Pat.hs
- compiler/GHC/Tc/Gen/Sig.hs
- compiler/GHC/Tc/Gen/Splice.hs
- compiler/GHC/Tc/Instance/Class.hs
- compiler/GHC/Tc/Instance/Typeable.hs
- compiler/GHC/Tc/Module.hs
- compiler/GHC/Tc/Solver/Default.hs
- compiler/GHC/Tc/Solver/Dict.hs
- compiler/GHC/Tc/Solver/InertSet.hs
- compiler/GHC/Tc/Solver/Monad.hs
- compiler/GHC/Tc/TyCl/Build.hs
- compiler/GHC/Tc/TyCl/Instance.hs
- compiler/GHC/Tc/Types.hs
- compiler/GHC/Tc/Types/Constraint.hs
- compiler/GHC/Tc/Types/ErrCtxt.hs
- compiler/GHC/Tc/Types/Evidence.hs
- compiler/GHC/Tc/Types/Origin.hs
- compiler/GHC/Tc/Utils/Concrete.hs
- compiler/GHC/Tc/Utils/Env.hs
- compiler/GHC/Tc/Utils/Instantiate.hs
- compiler/GHC/Tc/Utils/Monad.hs
- compiler/GHC/Tc/Utils/TcMType.hs
- compiler/GHC/Tc/Utils/TcType.hs
- compiler/GHC/Tc/Validity.hs
- compiler/GHC/Tc/Zonk/TcType.hs
- compiler/GHC/Tc/Zonk/Type.hs
- compiler/GHC/ThToHs.hs
- compiler/GHC/Types/DefaultEnv.hs
- compiler/GHC/Types/Error/Codes.hs
- compiler/GHC/Types/Hint.hs
- compiler/GHC/Types/Hint/Ppr.hs
- compiler/GHC/Types/Id/Make.hs
- compiler/GHC/Types/Name.hs
- compiler/GHC/Types/Name/Cache.hs
- compiler/GHC/Types/Name/Ppr.hs
- compiler/GHC/Types/Name/Reader.hs
- compiler/GHC/Types/Unique.hs
- compiler/GHC/Types/Unique/FM.hs
- compiler/GHC/Unit/External.hs
- compiler/GHC/Unit/Module/ModSummary.hs
- compiler/GHC/Unit/State.hs
- compiler/Language/Haskell/Syntax/Expr.hs
- compiler/ghc.cabal.in
- configure.ac
- distrib/configure.ac.in
- docs/users_guide/debug-info.rst
- docs/users_guide/exts/rebindable_syntax.rst
- docs/users_guide/separate_compilation.rst
- ghc/GHCi/UI.hs
- hadrian/cfg/system.config.in
- hadrian/src/Oracles/Setting.hs
- hadrian/src/Rules/Generate.hs
- hadrian/src/Settings/Default.hs
- libraries/base/base.cabal.in
- libraries/base/changelog.md
- libraries/base/src/Control/Applicative.hs
- libraries/base/src/Data/Array/Byte.hs
- libraries/base/src/Data/Bifoldable1.hs
- libraries/base/src/Data/Bool.hs
- libraries/base/src/Data/Complex.hs
- libraries/base/src/Data/Enum.hs
- libraries/base/src/Data/Fixed.hs
- libraries/base/src/Data/Foldable1.hs
- libraries/base/src/Data/Functor/Classes.hs
- libraries/base/src/Data/Functor/Compose.hs
- libraries/base/src/Data/Functor/Product.hs
- libraries/base/src/Data/Functor/Sum.hs
- libraries/base/src/Data/List.hs
- libraries/base/src/Data/List/NubOrdSet.hs
- libraries/base/src/Data/Semigroup.hs
- libraries/base/src/GHC/Base.hs
- libraries/base/src/GHC/Fingerprint.hs
- + libraries/base/src/GHC/KnownKeyNames.hs
- libraries/base/src/GHC/RTS/Flags.hs
- libraries/base/src/GHC/ResponseFile.hs
- libraries/base/src/GHC/Stats.hs
- libraries/base/src/GHC/Weak/Finalize.hs
- libraries/base/src/Prelude.hs
- libraries/base/src/System/Console/GetOpt.hs
- libraries/base/src/System/Exit.hs
- libraries/base/src/System/IO/OS.hs
- libraries/base/src/System/IO/Unsafe.hs
- libraries/base/src/System/Info.hs
- libraries/base/src/System/Timeout.hs
- libraries/base/src/Text/Printf.hs
- libraries/base/tests/enum01.stdout
- libraries/base/tests/enum01.stdout-alpha-dec-osf3
- libraries/base/tests/enum01.stdout-ws-64
- libraries/ghc-internal/ghc-internal.cabal.in
- libraries/ghc-internal/src/GHC/Internal/AllocationLimitHandler.hs
- libraries/ghc-internal/src/GHC/Internal/Arr.hs
- libraries/ghc-internal/src/GHC/Internal/Base.hs
- libraries/ghc-internal/src/GHC/Internal/Bignum/Backend/Native.hs
- libraries/ghc-internal/src/GHC/Internal/Bignum/BigNat.hs
- libraries/ghc-internal/src/GHC/Internal/Bignum/BigNat.hs-boot
- libraries/ghc-internal/src/GHC/Internal/Bignum/Integer.hs
- libraries/ghc-internal/src/GHC/Internal/Bignum/Integer.hs-boot
- libraries/ghc-internal/src/GHC/Internal/Bignum/Natural.hs
- libraries/ghc-internal/src/GHC/Internal/Bignum/Natural.hs-boot
- libraries/ghc-internal/src/GHC/Internal/ByteOrder.hs
- libraries/ghc-internal/src/GHC/Internal/CString.hs
- libraries/ghc-internal/src/GHC/Internal/Char.hs
- libraries/ghc-internal/src/GHC/Internal/Classes.hs
- libraries/ghc-internal/src/GHC/Internal/Clock.hsc
- libraries/ghc-internal/src/GHC/Internal/ClosureTypes.hs
- libraries/ghc-internal/src/GHC/Internal/Conc/Bound.hs
- libraries/ghc-internal/src/GHC/Internal/Conc/IO.hs
- libraries/ghc-internal/src/GHC/Internal/Conc/Signal.hs
- libraries/ghc-internal/src/GHC/Internal/Conc/Sync.hs
- libraries/ghc-internal/src/GHC/Internal/Control/Arrow.hs
- libraries/ghc-internal/src/GHC/Internal/Control/Category.hs
- libraries/ghc-internal/src/GHC/Internal/Control/Concurrent/MVar.hs
- libraries/ghc-internal/src/GHC/Internal/Control/Exception/Base.hs
- libraries/ghc-internal/src/GHC/Internal/Control/Monad.hs
- libraries/ghc-internal/src/GHC/Internal/Control/Monad/Fail.hs
- libraries/ghc-internal/src/GHC/Internal/Control/Monad/Fix.hs
- libraries/ghc-internal/src/GHC/Internal/Control/Monad/ST/Imp.hs
- libraries/ghc-internal/src/GHC/Internal/Control/Monad/Zip.hs
- libraries/ghc-internal/src/GHC/Internal/Data/Bits.hs
- libraries/ghc-internal/src/GHC/Internal/Data/Data.hs
- libraries/ghc-internal/src/GHC/Internal/Data/Dynamic.hs
- libraries/ghc-internal/src/GHC/Internal/Data/Either.hs
- libraries/ghc-internal/src/GHC/Internal/Data/Foldable.hs
- libraries/ghc-internal/src/GHC/Internal/Data/Functor/Const.hs
- libraries/ghc-internal/src/GHC/Internal/Data/Functor/Identity.hs
- libraries/ghc-internal/src/GHC/Internal/Data/Monoid.hs
- libraries/ghc-internal/src/GHC/Internal/Data/OldList.hs
- libraries/ghc-internal/src/GHC/Internal/Data/Ord.hs
- libraries/ghc-internal/src/GHC/Internal/Data/Proxy.hs
- libraries/ghc-internal/src/GHC/Internal/Data/STRef.hs
- libraries/ghc-internal/src/GHC/Internal/Data/String.hs
- libraries/ghc-internal/src/GHC/Internal/Data/Traversable.hs
- libraries/ghc-internal/src/GHC/Internal/Data/Type/Coercion.hs
- libraries/ghc-internal/src/GHC/Internal/Data/Type/Equality.hs
- libraries/ghc-internal/src/GHC/Internal/Data/Type/Ord.hs
- libraries/ghc-internal/src/GHC/Internal/Data/Typeable/Internal.hs
- libraries/ghc-internal/src/GHC/Internal/Data/Unique.hs
- libraries/ghc-internal/src/GHC/Internal/Data/Version.hs
- libraries/ghc-internal/src/GHC/Internal/Debug/Trace.hs
- libraries/ghc-internal/src/GHC/Internal/Enum.hs
- libraries/ghc-internal/src/GHC/Internal/Enum.hs-boot
- libraries/ghc-internal/src/GHC/Internal/Environment.hs
- libraries/ghc-internal/src/GHC/Internal/Event/Control.hs
- libraries/ghc-internal/src/GHC/Internal/Event/EPoll.hsc
- libraries/ghc-internal/src/GHC/Internal/Event/IntVar.hs
- libraries/ghc-internal/src/GHC/Internal/Event/Internal.hs
- libraries/ghc-internal/src/GHC/Internal/Event/Internal/Types.hs
- libraries/ghc-internal/src/GHC/Internal/Event/Manager.hs
- libraries/ghc-internal/src/GHC/Internal/Event/Poll.hsc
- libraries/ghc-internal/src/GHC/Internal/Event/Thread.hs
- libraries/ghc-internal/src/GHC/Internal/Event/TimerManager.hs
- libraries/ghc-internal/src/GHC/Internal/Event/Unique.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/Context.hs
- libraries/ghc-internal/src/GHC/Internal/Exception/Type.hs
- libraries/ghc-internal/src/GHC/Internal/ExecutionStack/Internal.hsc
- libraries/ghc-internal/src/GHC/Internal/Fingerprint.hs
- libraries/ghc-internal/src/GHC/Internal/Fingerprint/Type.hs
- libraries/ghc-internal/src/GHC/Internal/Float.hs
- libraries/ghc-internal/src/GHC/Internal/Float/RealFracMethods.hs
- libraries/ghc-internal/src/GHC/Internal/Foreign/C/ConstPtr.hs
- libraries/ghc-internal/src/GHC/Internal/Foreign/C/Error.hs
- libraries/ghc-internal/src/GHC/Internal/Foreign/C/String.hs
- libraries/ghc-internal/src/GHC/Internal/Foreign/C/String/Encoding.hs
- libraries/ghc-internal/src/GHC/Internal/Foreign/ForeignPtr/Imp.hs
- libraries/ghc-internal/src/GHC/Internal/Foreign/Marshal/Alloc.hs
- libraries/ghc-internal/src/GHC/Internal/Foreign/Marshal/Array.hs
- libraries/ghc-internal/src/GHC/Internal/Foreign/Marshal/Error.hs
- libraries/ghc-internal/src/GHC/Internal/Foreign/Marshal/Utils.hs
- libraries/ghc-internal/src/GHC/Internal/Foreign/Storable.hs
- libraries/ghc-internal/src/GHC/Internal/ForeignPtr.hs
- libraries/ghc-internal/src/GHC/Internal/ForeignSrcLang.hs
- libraries/ghc-internal/src/GHC/Internal/Functor/ZipList.hs
- libraries/ghc-internal/src/GHC/Internal/GHCi/Helpers.hs
- libraries/ghc-internal/src/GHC/Internal/Generics.hs
- libraries/ghc-internal/src/GHC/Internal/Heap/Closures.hs
- libraries/ghc-internal/src/GHC/Internal/Heap/InfoTable.hsc
- libraries/ghc-internal/src/GHC/Internal/Heap/InfoTable/Types.hsc
- libraries/ghc-internal/src/GHC/Internal/Heap/InfoTableProf.hsc
- libraries/ghc-internal/src/GHC/Internal/Heap/ProfInfo/Types.hs
- libraries/ghc-internal/src/GHC/Internal/IO.hs
- libraries/ghc-internal/src/GHC/Internal/IO/Buffer.hs
- libraries/ghc-internal/src/GHC/Internal/IO/BufferedIO.hs
- libraries/ghc-internal/src/GHC/Internal/IO/Device.hs
- libraries/ghc-internal/src/GHC/Internal/IO/Encoding.hs
- libraries/ghc-internal/src/GHC/Internal/IO/Encoding/Failure.hs
- libraries/ghc-internal/src/GHC/Internal/IO/Encoding/Iconv.hs
- libraries/ghc-internal/src/GHC/Internal/IO/Encoding/Types.hs
- libraries/ghc-internal/src/GHC/Internal/IO/Exception.hs
- libraries/ghc-internal/src/GHC/Internal/IO/FD.hs
- libraries/ghc-internal/src/GHC/Internal/IO/Handle.hs
- libraries/ghc-internal/src/GHC/Internal/IO/Handle/FD.hs
- libraries/ghc-internal/src/GHC/Internal/IO/Handle/Internals.hs
- libraries/ghc-internal/src/GHC/Internal/IO/Handle/Lock/Common.hs
- libraries/ghc-internal/src/GHC/Internal/IO/Handle/Lock/Flock.hsc
- libraries/ghc-internal/src/GHC/Internal/IO/Handle/Lock/LinuxOFD.hsc
- libraries/ghc-internal/src/GHC/Internal/IO/Handle/Text.hs
- libraries/ghc-internal/src/GHC/Internal/IO/Handle/Types.hs
- libraries/ghc-internal/src/GHC/Internal/IO/IOMode.hs
- libraries/ghc-internal/src/GHC/Internal/IO/SubSystem.hs
- libraries/ghc-internal/src/GHC/Internal/IOArray.hs
- libraries/ghc-internal/src/GHC/Internal/InfoProv/Types.hsc
- libraries/ghc-internal/src/GHC/Internal/Int.hs
- libraries/ghc-internal/src/GHC/Internal/IsList.hs
- libraries/ghc-internal/src/GHC/Internal/Ix.hs
- libraries/ghc-internal/src/GHC/Internal/LanguageExtensions.hs
- libraries/ghc-internal/src/GHC/Internal/MVar.hs
- libraries/ghc-internal/src/GHC/Internal/Magic.hs
- libraries/ghc-internal/src/GHC/Internal/Maybe.hs
- libraries/ghc-internal/src/GHC/Internal/Num.hs
- libraries/ghc-internal/src/GHC/Internal/Num.hs-boot
- libraries/ghc-internal/src/GHC/Internal/Numeric.hs
- libraries/ghc-internal/src/GHC/Internal/OverloadedLabels.hs
- libraries/ghc-internal/src/GHC/Internal/Ptr.hs
- libraries/ghc-internal/src/GHC/Internal/RTS/Flags.hsc
- libraries/ghc-internal/src/GHC/Internal/RTS/Flags/Test.hsc
- libraries/ghc-internal/src/GHC/Internal/Read.hs
- libraries/ghc-internal/src/GHC/Internal/Real.hs
- libraries/ghc-internal/src/GHC/Internal/Real.hs-boot
- libraries/ghc-internal/src/GHC/Internal/Records.hs
- libraries/ghc-internal/src/GHC/Internal/ST.hs
- libraries/ghc-internal/src/GHC/Internal/Show.hs
- libraries/ghc-internal/src/GHC/Internal/Stack.hs
- libraries/ghc-internal/src/GHC/Internal/Stack/CCS.hsc
- libraries/ghc-internal/src/GHC/Internal/Stack/CloneStack.hs
- libraries/ghc-internal/src/GHC/Internal/Stack/Decode.hs
- libraries/ghc-internal/src/GHC/Internal/Stack/Types.hs
- libraries/ghc-internal/src/GHC/Internal/StaticPtr.hs
- libraries/ghc-internal/src/GHC/Internal/StaticPtr/Internal.hs
- libraries/ghc-internal/src/GHC/Internal/Stats.hsc
- libraries/ghc-internal/src/GHC/Internal/System/Environment.hs
- libraries/ghc-internal/src/GHC/Internal/System/Environment/Blank.hsc
- libraries/ghc-internal/src/GHC/Internal/System/Environment/ExecutablePath.hsc
- libraries/ghc-internal/src/GHC/Internal/System/IO.hs
- libraries/ghc-internal/src/GHC/Internal/System/IO/Error.hs
- libraries/ghc-internal/src/GHC/Internal/System/Posix/Internals.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/Syntax.hs
- libraries/ghc-internal/src/GHC/Internal/Text/ParserCombinators/ReadP.hs
- libraries/ghc-internal/src/GHC/Internal/Text/Read.hs
- libraries/ghc-internal/src/GHC/Internal/Text/Read/Lex.hs
- libraries/ghc-internal/src/GHC/Internal/TopHandler.hs
- libraries/ghc-internal/src/GHC/Internal/Tuple.hs
- libraries/ghc-internal/src/GHC/Internal/TypeError.hs
- libraries/ghc-internal/src/GHC/Internal/TypeLits.hs
- libraries/ghc-internal/src/GHC/Internal/TypeNats.hs
- libraries/ghc-internal/src/GHC/Internal/Unicode.hs
- libraries/ghc-internal/src/GHC/Internal/Unicode/Char/DerivedCoreProperties.hs
- libraries/ghc-internal/src/GHC/Internal/Unicode/Char/UnicodeData/GeneralCategory.hs
- libraries/ghc-internal/src/GHC/Internal/Unicode/Version.hs
- libraries/ghc-internal/src/GHC/Internal/Unsafe/Coerce.hs
- libraries/ghc-internal/src/GHC/Internal/Weak/Finalize.hs
- libraries/ghc-prim/ghc-prim.cabal
- libraries/ghci/GHCi/Message.hs
- libraries/ghci/GHCi/ObjLink.hs
- libraries/ghci/GHCi/Run.hs
- m4/fptools_set_platform_vars.m4
- m4/ghc_toolchain.m4
- + testsuite/tests/driver/T26435.ghc.stderr
- + testsuite/tests/driver/T26435.hs
- + testsuite/tests/driver/T26435.stdout
- testsuite/tests/driver/all.T
- testsuite/tests/driver/linkwhole/Main.hs
- testsuite/tests/ghc-api/downsweep/PartialDownsweep.hs
- testsuite/tests/ghci/should_run/T18064.script
- testsuite/tests/parser/should_fail/T16270h.hs
- testsuite/tests/rts/KeepCafsMain.hs
- testsuite/tests/th/T26568.stderr
- utils/check-exact/Utils.hs
- utils/haddock/haddock-api/src/Haddock/Convert.hs
- utils/haddock/haddock-api/src/Haddock/Interface.hs
- utils/haddock/haddock-api/src/Haddock/Interface/Create.hs
- utils/haddock/haddock-api/src/Haddock/Interface/Rename.hs
- utils/haddock/haddock-api/src/Haddock/Types.hs
- utils/jsffi/dyld.mjs
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[Git][ghc/ghc][wip/spj-reinstallable-base] More and more
by Simon Peyton Jones (＠simonpj) 08 Apr '26
by Simon Peyton Jones (＠simonpj) 08 Apr '26
08 Apr '26
Simon Peyton Jones pushed to branch wip/spj-reinstallable-base at Glasgow Haskell Compiler / GHC
Commits:
89211939 by Simon Peyton Jones at 2026-04-08T17:45:14+01:00
More and more
- - - - -
10 changed files:
- compiler/GHC/Builtin.hs
- compiler/GHC/Builtin/Names.hs
- compiler/GHC/Tc/Gen/Default.hs
- libraries/base/src/Data/Fixed.hs
- libraries/base/src/GHC/KnownKeyNames.hs
- libraries/base/src/System/Console/GetOpt.hs
- libraries/ghc-internal/src/GHC/Internal/Float.hs
- libraries/ghc-internal/src/GHC/Internal/IO.hs
- libraries/ghc-internal/src/GHC/Internal/Records.hs
- testsuite/tests/th/T26568.stderr
Changes:
=====================================
compiler/GHC/Builtin.hs
=====================================
@@ -1,3 +1,5 @@
+{-# LANGUAGE CPP #-}
+
{-
(c) The GRASP/AQUA Project, Glasgow University, 1992-1998
@@ -40,7 +42,9 @@ module GHC.Builtin (
maybeCharLikeCon, maybeIntLikeCon,
-- * Class categories
- isNumericClass, isStandardClass
+ isNumericClass, isStandardClass,
+ numericClassKeys, fractionalClassKeys, standardClassKeys,
+ derivableClassKeys, interactiveClassKeys
) where
@@ -53,8 +57,7 @@ import GHC.Builtin.Types
import GHC.Builtin.Types.Literals ( typeNatTyCons )
import GHC.Builtin.Types.Prim
import GHC.Builtin.TH ( templateHaskellNames, thKnownKeyTable )
-import GHC.Builtin.Names( basicKnownKeyTable, basicKnownKeyNames )
-import GHC.Builtin.Names( charDataConKey, intDataConKey, numericClassKeys, standardClassKeys )
+import GHC.Builtin.Names
import GHC.Core.ConLike ( ConLike(..) )
import GHC.Core.DataCon
@@ -378,6 +381,92 @@ knownVarOccRdrName :: String -> RdrName
knownVarOccRdrName s = knownOccRdrName (mkVarOcc s)
+
+{-
+************************************************************************
+* *
+ Groups of keys
+* *
+************************************************************************
+
+NOTE: @Eq@ and @Text@ do need to appear in @standardClasses@
+even though every numeric class has these two as a superclass,
+because the list of ambiguous dictionaries hasn't been simplified.
+-}
+
+numericClassKeys :: [KnownKey]
+numericClassKeys
+ = checkKnownKeys
+ [ numClassKey
+ , realClassKey
+ , integralClassKey
+ ]
+ ++ fractionalClassKeys
+
+fractionalClassKeys :: [KnownKey]
+fractionalClassKeys
+ = checkKnownKeys
+ [ fractionalClassKey
+ , floatingClassKey
+ , realFracClassKey
+ , realFloatClassKey
+ ]
+
+-- The "standard classes" are used in defaulting (Haskell 98 report 4.3.4),
+-- and are: "classes defined in the Prelude or a standard library"
+standardClassKeys :: [KnownKey]
+standardClassKeys
+ = derivableClassKeys
+ ++ numericClassKeys
+ ++ checkKnownKeys
+ [ randomClassKey, randomGenClassKey
+ , functorClassKey
+ , monadClassKey, monadPlusClassKey, monadFailClassKey
+ , semigroupClassKey, monoidClassKey
+ , isStringClassKey
+ , applicativeClassKey, foldableClassKey
+ , traversableClassKey, alternativeClassKey
+ ]
+
+{-
+@derivableClassKeys@ is also used in checking \tr{deriving} constructs
+(@GHC.Tc.Deriv@).
+-}
+
+derivableClassKeys :: [KnownKey]
+derivableClassKeys
+ = checkKnownKeys [ eqClassKey, ordClassKey, enumClassKey, ixClassKey
+ , boundedClassKey, showClassKey, readClassKey ]
+
+interactiveClassKeys :: [KnownKey]
+-- These are the "interactive classes" that are consulted when doing
+-- defaulting. Does not include Num or IsString, which have special
+-- handling.
+interactiveClassKeys
+ = checkKnownKeys [ showClassKey, eqClassKey, ordClassKey
+ , foldableClassKey, traversableClassKey ]
+
+checkKnownKeys :: [KnownKey] -> [KnownKey]
+-- An assertion check, that checks that these alleged known-keys do
+-- actually appear in the knownKeyTable.
+#ifdef DEBUG
+checkKnownKeys keys
+ | null bad_keys = keys
+ | otherwise = pprPanic "checkKnownKeys" (vcat (map pprKnownKey bad_keys))
+ where
+ bad_keys = filter (not . (`elemUFM` knownKeyUniqMap)) keys
+#else
+checkKnownKeys keys = keys
+#endif
+
+isNumericClass, isStandardClass :: Class -> Bool
+isNumericClass clas = classKey clas `is_elem` numericClassKeys
+isStandardClass clas = classKey clas `is_elem` standardClassKeys
+
+is_elem :: Eq a => a -> [a] -> Bool
+is_elem = isIn "is_X_Class"
+
+
{- *********************************************************************
* *
Wired-in things
@@ -652,18 +741,3 @@ maybeCharLikeCon, maybeIntLikeCon :: DataCon -> Bool
maybeCharLikeCon con = con `hasKey` charDataConKey
maybeIntLikeCon con = con `hasKey` intDataConKey
-{-
-************************************************************************
-* *
- Class predicates
-* *
-************************************************************************
--}
-
-isNumericClass, isStandardClass :: Class -> Bool
-
-isNumericClass clas = classKey clas `is_elem` numericClassKeys
-isStandardClass clas = classKey clas `is_elem` standardClassKeys
-
-is_elem :: Eq a => a -> [a] -> Bool
-is_elem = isIn "is_X_Class"
=====================================
compiler/GHC/Builtin/Names.hs
=====================================
@@ -187,8 +187,6 @@ basicKnownKeyTable
, (mkTcOcc "Foldable", foldableClassKey)
, (mkTcOcc "Traversable", traversableClassKey)
, (mkTcOcc "Bounded", boundedClassKey)
- , (mkTcOcc "Integral", integralClassKey)
- , (mkTcOcc "Real", realClassKey)
, (mkTcOcc "Data", dataClassKey)
, (mkTcOcc "Ix", ixClassKey)
, (mkTcOcc "Alternative", alternativeClassKey)
@@ -216,6 +214,11 @@ basicKnownKeyTable
-- Numeric operations
, (mkTcOcc "Num", numClassKey)
+ , (mkTcOcc "Integral", integralClassKey)
+ , (mkTcOcc "Real", realClassKey)
+ , (mkTcOcc "Fractional", fractionalClassKey)
+ , (mkTcOcc "RealFloat", realFloatClassKey)
+-- , (mkTcOcc "RealFrac", realFracClassKey)
, (mkVarOcc "-", minusClassOpKey)
, (mkVarOcc "negate", negateClassOpKey)
, (mkVarOcc "fromInteger", fromIntegerClassOpKey)
@@ -270,8 +273,7 @@ basicKnownKeyTable
, (mkTcOcc "HasField", hasFieldClassKey)
, (mkVarOcc "fromLabel", fromLabelClassOpKey)
, (mkVarOcc "getField", getFieldClassOpKey)
- -- setField is not yet defined in ghc-internal
- -- , (mkVarOcc "setField", setFieldClassOpKey)
+ , (mkVarOcc "setField", setFieldClassOpKey)
-- FromList
, (mkVarOcc "fromList", fromListClassOpKey)
@@ -2149,61 +2151,3 @@ bignatCompareWordIdKey = mkPreludeMiscIdUnique 693
mkRationalBase2IdKey, mkRationalBase10IdKey :: KnownKey
mkRationalBase2IdKey = mkPreludeMiscIdUnique 700
mkRationalBase10IdKey = mkPreludeMiscIdUnique 701 :: KnownKey
-
-{-
-************************************************************************
-* *
-\subsection[Class-std-groups]{Standard groups of Prelude classes}
-* *
-************************************************************************
-
-NOTE: @Eq@ and @Text@ do need to appear in @standardClasses@
-even though every numeric class has these two as a superclass,
-because the list of ambiguous dictionaries hasn't been simplified.
--}
-
-numericClassKeys :: [KnownKey]
-numericClassKeys =
- [ numClassKey
- , realClassKey
- , integralClassKey
- ]
- ++ fractionalClassKeys
-
-fractionalClassKeys :: [KnownKey]
-fractionalClassKeys =
- [ fractionalClassKey
- , floatingClassKey
- , realFracClassKey
- , realFloatClassKey
- ]
-
--- The "standard classes" are used in defaulting (Haskell 98 report 4.3.4),
--- and are: "classes defined in the Prelude or a standard library"
-standardClassKeys :: [KnownKey]
-standardClassKeys = derivableClassKeys ++ numericClassKeys
- ++ [randomClassKey, randomGenClassKey,
- functorClassKey,
- monadClassKey, monadPlusClassKey, monadFailClassKey,
- semigroupClassKey, monoidClassKey,
- isStringClassKey,
- applicativeClassKey, foldableClassKey,
- traversableClassKey, alternativeClassKey
- ]
-
-{-
-@derivableClassKeys@ is also used in checking \tr{deriving} constructs
-(@GHC.Tc.Deriv@).
--}
-
-derivableClassKeys :: [KnownKey]
-derivableClassKeys
- = [ eqClassKey, ordClassKey, enumClassKey, ixClassKey,
- boundedClassKey, showClassKey, readClassKey ]
-
-interactiveClassKeys :: [KnownKey]
--- These are the "interactive classes" that are consulted when doing
--- defaulting. Does not include Num or IsString, which have special
--- handling.
-interactiveClassKeys = [ showClassKey, eqClassKey, ordClassKey
- , foldableClassKey, traversableClassKey ]
=====================================
compiler/GHC/Tc/Gen/Default.hs
=====================================
@@ -12,7 +12,9 @@ module GHC.Tc.Gen.Default ( tcDefaultDecls, extendDefaultEnvWithLocalDefaults )
import GHC.Prelude
import GHC.Hs
+import GHC.Builtin( interactiveClassKeys )
import GHC.Builtin.Names
+
import GHC.Core.Class
import GHC.Core.Predicate ( Pred (..), classifyPredType )
=====================================
libraries/base/src/Data/Fixed.hs
=====================================
@@ -4,6 +4,9 @@
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE TemplateHaskellQuotes #-}
+{-# OPTIONS_GHC -fno-rebindable-known-key-names #-}
+ -- We are importing Prelude, hence GHC.KnownKeyNames is available
+
-----------------------------------------------------------------------------
-- |
-- Module : Data.Fixed
@@ -87,7 +90,6 @@ module Data.Fixed
) where
import Prelude
-import GHC.KnownKeyNames
import GHC.Internal.Data.Data
import GHC.Internal.TypeLits (KnownNat, natVal)
import GHC.Internal.Read
@@ -95,7 +97,6 @@ import GHC.Internal.Text.ParserCombinators.ReadPrec( ReadPrec, pfail )
import GHC.Internal.Text.Read.Lex
import qualified GHC.Internal.TH.Monad as TH
import qualified GHC.Internal.TH.Lift as TH
-import GHC.Internal.TH.Lift( lift ) -- Unqualified for known-occ names
import Data.Typeable
-- $setup
=====================================
libraries/base/src/GHC/KnownKeyNames.hs
=====================================
@@ -59,7 +59,7 @@ module GHC.KnownKeyNames
, dataToTag#
-- Numbers
- , Num, Integral, Real, Fractional
+ , Num, Integral, Real, Fractional, RealFloat
, (+), (-), (*), negate, fromInteger
, fromRational
, mkRationalBase2, mkRationalBase10
@@ -71,7 +71,7 @@ module GHC.KnownKeyNames
-- Records
, HasField
- , fromLabel, getField
+ , fromLabel, getField, setField
-- Overloaded lists
, IL.fromList, IL.fromListN, IL.toList
@@ -157,13 +157,14 @@ import GHC.Internal.Data.Data
import GHC.Internal.Data.String( fromString )
import GHC.Internal.Data.Foldable( Foldable )
import GHC.Internal.Data.Traversable( Traversable )
+import GHC.Internal.Float( RealFloat )
import GHC.Internal.Real( mkRationalBase2, mkRationalBase10 )
import GHC.Internal.Control.Monad( fail, guard )
import GHC.Internal.Control.Monad.Fix( mfix, loop )
import GHC.Internal.Control.Monad.Zip( mzip )
import GHC.Internal.Control.Arrow( arr, (>>>), first, app, (|||) )
import GHC.Internal.OverloadedLabels( fromLabel )
-import GHC.Internal.Records( HasField, getField )
+import GHC.Internal.Records
import GHC.Internal.CString as CS
import GHC.Internal.TypeError( Unsatisfiable, unsatisfiable )
import GHC.Internal.System.IO( print )
=====================================
libraries/base/src/System/Console/GetOpt.hs
=====================================
@@ -1,5 +1,7 @@
{-# LANGUAGE Safe #-}
+{-# OPTIONS_GHC -fno-rebindable-known-key-names #-}
+ -- We are importing Prelude, hence GHC.KnownKeyNames is available
-----------------------------------------------------------------------------
-- |
-- Module : System.Console.GetOpt
@@ -62,8 +64,7 @@ module System.Console.GetOpt (
-- $example2
) where
-import Prelude hiding( foldr )
-import GHC.KnownKeyNames
+import Prelude
import GHC.Internal.Data.List ( isPrefixOf, find )
-- |What to do with options following non-options
=====================================
libraries/ghc-internal/src/GHC/Internal/Float.hs
=====================================
@@ -9,6 +9,10 @@
{-# LANGUAGE CApiFFI #-}
-- We believe we could deorphan this module, by moving lots of things
-- around, but we haven't got there yet:
+
+{-# OPTIONS_GHC -fdefines-known-key-names #-}
+ -- Defines RealFloat
+
{-# OPTIONS_GHC -Wno-orphans #-}
{-# OPTIONS_HADDOCK not-home #-}
{-# OPTIONS_GHC -Wno-incomplete-uni-patterns #-}
=====================================
libraries/ghc-internal/src/GHC/Internal/IO.hs
=====================================
@@ -50,14 +50,12 @@ module GHC.Internal.IO (
) where
import GHC.Internal.Base
-import GHC.Internal.Magic ( lazy )
import GHC.Internal.Maybe ( Maybe(..) )
import GHC.Internal.Prim (
RealWorld, State#, catch#, getMaskingState#, maskAsyncExceptions#,
maskUninterruptible#, raiseIO#, unmaskAsyncExceptions#,
)
import GHC.Internal.ST
-import GHC.Internal.Types ( Char, IO(..) )
import GHC.Internal.Exception
import GHC.Internal.Exception.Type (NoBacktrace(..), whileHandling, WhileHandling(..), HasExceptionContext, ExceptionWithContext(..))
import GHC.Internal.Show
=====================================
libraries/ghc-internal/src/GHC/Internal/Records.hs
=====================================
@@ -6,6 +6,7 @@
{-# LANGUAGE StandaloneKindSignatures #-}
{-# LANGUAGE Trustworthy #-}
+{-# OPTIONS_GHC -Wno-unused-foralls #-}
{-# OPTIONS_GHC -fdefines-known-key-names #-}
-- Defines GetField
-----------------------------------------------------------------------------
@@ -26,10 +27,11 @@
-----------------------------------------------------------------------------
module GHC.Internal.Records
- ( HasField(..)
+ ( HasField(..), setField
) where
-import GHC.Internal.Types (TYPE, Constraint)
+import GHC.Internal.Types (TYPE, Type, Constraint)
+import GHC.Internal.Err( error )
-- | Constraint representing the fact that the field @x@ belongs to
-- the record type @r@ and has field type @a@. This will be solved
@@ -45,3 +47,13 @@ type HasField :: forall {k} {r_rep} {a_rep} . k -> TYPE r_rep -> TYPE a_rep -> C
class HasField x r a | x r -> a where
-- | Selector function to extract the field from the record.
getField :: r -> a
+
+
+setField :: forall {k} (x::k) (r :: Type) (a :: Type). a -> r -> r
+-- This setField is never used
+-- -XRebindableSyntax is required if -XOverloadedRecordUpdate is enabled
+-- But we still want to export setField from GHC.KnownKeyNames, so that
+-- * We can have a known-key for setField (see uses of setFieldClassOpKey)
+-- * The assertion check that GHC.KnownKeyNames exports every known-key
+-- should not fail
+setField = error "Yikes! setField is not implemented yet"
=====================================
testsuite/tests/th/T26568.stderr
=====================================
@@ -1,7 +1,7 @@
T26568.hs:5:3: error: [GHC-28914]
• Level error:
instance for ‘GHC.Internal.Base.Monad GHC.Internal.TH.Monad.Q’
- is bound at levels {} but used at level -1
+ is bound at level 0 but used at level -1
• In a stmt of a 'do' block: _ <- _
In the expression:
do _ <- _
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/89211939e63204398b45cb72e133796…
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View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/89211939e63204398b45cb72e133796…
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[Git][ghc/ghc][wip/T27135] 31 commits: Streamline expansions using HsExpansion (#25001)
by Peter Trommler (＠trommler) 08 Apr '26
by Peter Trommler (＠trommler) 08 Apr '26
08 Apr '26
Peter Trommler pushed to branch wip/T27135 at Glasgow Haskell Compiler / GHC
Commits:
58009c14 by Apoorv Ingle at 2026-04-02T09:51:24+01:00
Streamline expansions using HsExpansion (#25001)
Notes added [Error Context Stack] [Typechecking by expansion: overview]
Notes updated Note [Expanding HsDo with XXExprGhcRn] [tcApp: typechecking applications]
-------------------------
Metric Decrease:
T9020
-------------------------
There are 2 key changes:
1. `HsExpand` datatype mediates between expansions
2. Replace `ErrCtxtM` to a simpler `HsCtxt` that does not depend on a `TidyEnv`
This has some consequences detailed below:
1. `HsExpand` datatype mediates between expansions
* Simplifies the implementations of `tcExpr` to work on `XExpr`
* Removes `VACtxt` (and its associated `VAExpansion` and `VACall`) datatype, it is subsumed by simply a `SrcSpan`.
* Removes the function `addHeadCtxt` as it is now mearly setting a location
* The function `tcValArgs` does its own argument number management
* move `splitHsTypes` out of `tcApp`
* Removes special case of tcBody from `tcLambdaMatches`
* Removes special case of `dsExpr` for `ExpandedThingTc`
* Renames `tcMonoExpr` -> `tcMonoLExpr`, `tcMonoExprNC` -> `tcMonoLExpr`
* Renames `EValArg`, `EValArgQL` fields: `ea_ctxt` -> `ea_loc_span` and `eaql_ctx` -> `eaql_loc_span`
* Remove `PopErrCtxt` from `XXExprGhcRn`
* `fun_orig` in tcInstFun depends on the SrcSpan of the head of the application chain (similar to addArgCtxt)
- it references the application chain head if it is user located, or
uses the error context stack as a fallback if it's a generated
location
* Make a new variant `GeneratedSrcSpan` in `SrcSpan` for HIEAst Nodes
- Expressions wrapped around `GeneratedSrcSpan` are ignored and never added to the error context stack
- In Explicit list expansion `fromListN` is wrapped with a `GeneratedSrcSpan` with `GeneratedSrcSpanDetails` field to store the original srcspan
2. Replace `ErrCtxtM` to a simpler `HsCtxt` that does not depend on a `TidyEnv`
* Merge `HsThingRn` to `HsCtxt`
* Landmark Error messages are now just computed on the fly
* Make HsExpandedRn and HsExpandedTc payload a located HsExpr GhcRn
* `HsCtxt` are tidied and zonked at the end right before printing
Co-authored-by: simonpj <simon.peytonjones(a)gmail.com>
- - - - -
bc4b4487 by Zubin Duggal at 2026-04-03T14:22:27-04:00
driver: recognise .dyn_o as a valid object file to link if passed on the command line.
This allows plugins compiled with this suffix to run.
Fixes #24486
- - - - -
5ebb9121 by Simon Jakobi at 2026-04-03T14:23:11-04:00
Add regression test for #16145
Closes #16145.
- - - - -
c1fc1c44 by Simon Peyton Jones at 2026-04-03T19:56:07-04:00
Refactor eta-expansion in Prep
The Prep pass does eta-expansion but I found cases where it was
doing bad things. So I refactored and simplified it quite a bit.
In the new design
* There is no distinction between `rhs` and `body`; in particular,
lambdas can now appear anywhere, rather than just as the RHS of
a let-binding.
* This change led to a significant simplification of Prep, and
a more straightforward explanation of eta-expansion. See the new
Note [Eta expansion]
* The consequences is that CoreToStg needs to handle naked lambdas.
This is very easy; but it does need a unique supply, which forces
some simple refactoring. Having a unique supply to hand is probably
a good thing anyway.
- - - - -
21beda2c by Simon Peyton Jones at 2026-04-03T19:56:07-04:00
Clarify Note [Interesting dictionary arguments]
Ticket #26831 ended up concluding that the code for
GHC.Core.Opt.Specialise.interestingDict was good, but the
commments were a bit inadequate.
This commit improves the comments slightly.
- - - - -
3eaac1f2 by Simon Peyton Jones at 2026-04-03T19:56:07-04:00
Make inlining a bit more eager for overloaded functions
If we have
f d = ... (class-op d x y) ...
we should be eager to inline `f`, because that may change the
higher order call (class-op d x y) into a call to a statically
known function.
See the discussion on #26831.
Even though this does a bit /more/ inlining, compile times
decrease by an average of 0.4%.
Compile time changes:
DsIncompleteRecSel3(normal) 431,786,104 -2.2%
ManyAlternatives(normal) 670,883,768 -1.6%
ManyConstructors(normal) 3,758,493,832 -2.6% GOOD
MultilineStringsPerf(normal) 29,900,576 -2.8%
T14052Type(ghci) 1,047,600,848 -1.2%
T17836(normal) 392,852,328 -5.2%
T18478(normal) 442,785,768 -1.4%
T21839c(normal) 341,536,992 -14.1% GOOD
T3064(normal) 174,086,152 +5.3% BAD
T5631(normal) 506,867,800 +1.0%
hard_hole_fits(normal) 209,530,736 -1.3%
info_table_map_perf(normal) 19,523,093,184 -1.2%
parsing001(normal) 377,810,528 -1.1%
pmcOrPats(normal) 60,075,264 -0.5%
geo. mean -0.4%
minimum -14.1%
maximum +5.3%
Runtime changes
haddock.Cabal(normal) 27,351,988,792 -0.7%
haddock.base(normal) 26,997,212,560 -0.6%
haddock.compiler(normal) 219,531,332,960 -1.0%
Metric Decrease:
LinkableUsage01
ManyConstructors
T17949
T21839c
T13035
TcPlugin_RewritePerf
hard_hole_fits
Metric Increase:
T3064
- - - - -
5cbc2c82 by Matthew Pickering at 2026-04-03T19:57:02-04:00
bytecode: Add magic header/version to bytecode files
In order to avoid confusing errors when using stale interface files (ie
from an older compiler version), we add a simple header/version check
like the one for interface files.
Fixes #27068
- - - - -
d95a1936 by fendor at 2026-04-03T19:57:02-04:00
Add constants for bytecode in-memory buffer size
Introduce a common constant for the default size of the .gbc and
.bytecodelib binary buffer.
The buffer is by default set to 1 MB.
- - - - -
b822c30a by mangoiv at 2026-04-03T19:57:49-04:00
testsuite: filter stderr for static001 on darwin
This reactivates the test on x86_64 darwin as this should have been done
long ago and ignores warnings emitted by ranlib on newer version of the
darwin toolchain since they are benign. (no symbols for stub libraries)
Fixes #27116
- - - - -
28ce1f8a by Andreas Klebinger at 2026-04-03T19:58:44-04:00
Give the Data instance for ModuleName a non-bottom toConstr implementation.
I've also taken the liberty to add Note [Data.Data instances for GHC AST Types]
describing some of the uses of Data.Data I could find.
Fixes #27129
- - - - -
8ca41ffe by mangoiv at 2026-04-03T19:59:30-04:00
issue template: fix add bug label
- - - - -
3981db0c by Sylvain Henry at 2026-04-03T20:00:33-04:00
Add more canned GC functions for common register patterns (#27142)
Based on analysis of heap-check sites across the GHC compiler and Cabal,
the following patterns were not covered by existing canned GC functions
but occurred frequently enough to warrant specialisation:
stg_gc_ppppp -- 5 GC pointers
stg_gc_ip -- unboxed word + GC pointer
stg_gc_pi -- GC pointer + unboxed word
stg_gc_ii -- two unboxed words
stg_gc_bpp -- byte (I8) + two GC pointers
Adding these reduces the fraction of heap-check sites falling back to
the generic GC path from ~1.4% to ~0.4% when compiling GHC itself.
Co-Authored-By: Claude Sonnet 4.6 <noreply(a)anthropic.com>
- - - - -
d17d1435 by Matthew Pickering at 2026-04-03T20:01:19-04:00
Make home unit dependencies stored as sets
Co-authored-by: Wolfgang Jeltsch <wolfgang(a)well-typed.com>
- - - - -
92a97015 by Simon Peyton Jones at 2026-04-05T00:58:57+01:00
Add Invariant (NoTypeShadowing) to Core
This commit addresses #26868, by adding
a new invariant (NoTypeShadowing) to Core.
See Note [No type-shadowing in Core] in GHC.Core
- - - - -
8b5a5020 by Simon Peyton Jones at 2026-04-05T00:58:57+01:00
Major refactor of free-variable functions
For some time we have had two free-variable mechanims for types:
* The "FV" mechanism, embodied in GHC.Utils.FV, which worked OK, but
was fragile where eta-expansion was concerned.
* The TyCoFolder mechanism, using a one-shot EndoOS accumulator
I finally got tired of this and refactored the whole thing, thereby
addressing #27080. Now we have
* `GHC.Types.Var.FV`, which has a composable free-variable result type,
very much in the spirit of the old `FV`, but much more robust.
(It uses the "one shot trick".)
* GHC.Core.TyCo.FVs now has just one technology for free variables.
All this led to a lot of renaming.
There are couple of error-message changes. The change in T18451
makes an already-poor error message even more mysterious. But
it really needs a separate look.
We also now traverse the AST in a different order leading to a different
but still deterministic order for FVs and test output has been adjusted
accordingly.
- - - - -
4bf040c6 by sheaf at 2026-04-05T14:56:29-04:00
Add utility pprTrace_ function
This function is useful for quick debugging, as it can be added to a
where clause to pretty-print debugging information:
fooBar x y
| cond = body1
| otherwise = body2
where
!_ = pprTrace_ "fooBar" $
vcat [ text "x:" <+> ppr x
, text "y:" <+> ppr y
, text "cond:" <+> ppr cond
]
- - - - -
502e6ffe by Andrew Lelechenko at 2026-04-07T04:47:21-04:00
base: improve error message for Data.Char.chr
As per https://github.com/haskell/core-libraries-committee/issues/384
- - - - -
b21bd52e by Simon Peyton Jones at 2026-04-07T04:48:07-04:00
Refactor FunResCtxt a bit
Fixes #27154
- - - - -
7fe84ea5 by Zubin Duggal at 2026-04-07T19:11:52+05:30
compiler: Warn when -finfo-table-map is used with -fllvm
These are currently not supported together.
Fixes #26435
- - - - -
4a45a7da by Matthew Pickering at 2026-04-08T04:37:29-04:00
packaging: correctly propagate build/host/target to bindist configure script
At the moment the host and target which we will produce a compiler for
is fixed at the initial configure time. Therefore we need to persist
the choice made at this time into the installation bindist as well so we
look for the right tools, with the right prefixes at install time.
In the future, we want to provide a bit more control about what kind of
bindist we produce so the logic about what the host/target will have to
be written by hadrian rather than persisted by the configure script. In
particular with cross compilers we want to either build a normal stage 2
cross bindist or a stage 3 bindist, which creates a bindist which has a
native compiler for the target platform.
Fixes #21970
Co-authored-by: Sven Tennie <sven.tennie(a)gmail.com>
- - - - -
b0950df6 by Sven Tennie at 2026-04-08T04:37:29-04:00
Cross --host and --target no longer required for cross (#21970)
We set sane defaults in the configure script. Thus, these paramenters
aren't required any longer.
- - - - -
fef35216 by Sven Tennie at 2026-04-08T04:37:30-04:00
ci: Define USER_CONF_CC_OPTS_STAGE2 for aarch64/mingw
ghc-toolchain doesn't see $CONF_CC_OPTS_STAGE2 when the bindist gets
configured. So, the hack to override the compiler gets lost.
- - - - -
8dd6f453 by Cheng Shao at 2026-04-08T04:38:11-04:00
ghci: use ShortByteString for LookupSymbol/LookupSymbolInDLL/LookupClosure messages
This patch refactors ghci to use `ShortByteString` for
`LookupSymbol`/`LookupSymbolInDLL`/`LookupClosure` messages as the
first part of #27147.
Co-authored-by: Codex <codex(a)openai.com>
- - - - -
371ef200 by Cheng Shao at 2026-04-08T04:38:11-04:00
ghci: use ShortByteString for MkCostCentres message
This patch refactors ghci to use `ShortByteString` for `MkCostCentres`
messages as a first part of #27147. This also considerably lowers the
memory overhead of breakpoints when cost center profiling is enabled.
-------------------------
Metric Decrease:
interpreter_steplocal
-------------------------
Co-authored-by: Codex <codex(a)openai.com>
- - - - -
f27bfc86 by Peter Trommler at 2026-04-08T18:07:35+02:00
Convert to C11 stdatomic.h functions
- - - - -
a4c6ea55 by Peter Trommler at 2026-04-08T18:07:35+02:00
RTS: remove unused RELAXED_ADD_ALWAYS
- - - - -
8ab753b6 by Peter Trommler at 2026-04-08T18:07:35+02:00
Fix references to standard documents
- - - - -
0462a8e7 by Peter Trommler at 2026-04-08T18:07:35+02:00
Require minimum GCC version 4.9
- - - - -
c487b72b by Peter Trommler at 2026-04-08T18:07:35+02:00
Expand all *_ALWAYS macros and remove definitions
- - - - -
007b25f3 by Peter Trommler at 2026-04-08T18:07:35+02:00
Change atomic_add semantics
Avoid computed value not used warning/error.
- - - - -
46ac7e4b by Peter Trommler at 2026-04-08T18:07:35+02:00
Adjust atomics test to test for C11 atomics
- - - - -
275 changed files:
- .gitlab/ci.sh
- .gitlab/generate-ci/gen_ci.hs
- .gitlab/issue_templates/default.md
- .gitlab/jobs.yaml
- compiler/GHC.hs
- compiler/GHC/Builtin/PrimOps.hs
- compiler/GHC/ByteCode/Breakpoints.hs
- compiler/GHC/ByteCode/Serialize.hs
- compiler/GHC/Core.hs
- compiler/GHC/Core/Coercion.hs
- compiler/GHC/Core/FVs.hs
- compiler/GHC/Core/Lint.hs
- compiler/GHC/Core/Opt/Arity.hs
- compiler/GHC/Core/Opt/DmdAnal.hs
- compiler/GHC/Core/Opt/SetLevels.hs
- compiler/GHC/Core/Opt/Specialise.hs
- compiler/GHC/Core/Rules.hs
- compiler/GHC/Core/Subst.hs
- compiler/GHC/Core/Tidy.hs
- compiler/GHC/Core/TyCo/FVs.hs
- compiler/GHC/Core/TyCo/Rep.hs
- compiler/GHC/Core/TyCo/Subst.hs
- compiler/GHC/Core/Type.hs
- compiler/GHC/Core/Unfold.hs
- compiler/GHC/Core/Unify.hs
- compiler/GHC/CoreToStg.hs
- compiler/GHC/CoreToStg/Prep.hs
- compiler/GHC/Driver/Main.hs
- compiler/GHC/Driver/Phases.hs
- compiler/GHC/Driver/Plugins.hs
- compiler/GHC/Driver/Session.hs
- compiler/GHC/Hs/DocString.hs
- compiler/GHC/Hs/Expr.hs
- compiler/GHC/Hs/Expr.hs-boot
- compiler/GHC/Hs/Instances.hs
- compiler/GHC/Hs/Syn/Type.hs
- compiler/GHC/Hs/Utils.hs
- compiler/GHC/HsToCore/Binds.hs
- compiler/GHC/HsToCore/Breakpoints.hs
- compiler/GHC/HsToCore/Expr.hs
- compiler/GHC/HsToCore/Match.hs
- compiler/GHC/HsToCore/Monad.hs
- compiler/GHC/HsToCore/Pmc.hs
- compiler/GHC/HsToCore/Quote.hs
- compiler/GHC/HsToCore/Ticks.hs
- compiler/GHC/Iface/Ext/Ast.hs
- compiler/GHC/Iface/Ext/Utils.hs
- compiler/GHC/Iface/Syntax.hs
- compiler/GHC/Linker/Loader.hs
- compiler/GHC/Parser/HaddockLex.x
- compiler/GHC/Rename/Bind.hs
- compiler/GHC/Rename/Env.hs
- compiler/GHC/Rename/Expr.hs
- compiler/GHC/Rename/Expr.hs-boot
- compiler/GHC/Rename/HsType.hs
- compiler/GHC/Rename/Lit.hs
- compiler/GHC/Rename/Module.hs
- compiler/GHC/Rename/Names.hs
- compiler/GHC/Rename/Pat.hs
- compiler/GHC/Rename/Splice.hs
- compiler/GHC/Rename/Splice.hs-boot
- compiler/GHC/Rename/Utils.hs
- compiler/GHC/Runtime/Debugger/Breakpoints.hs
- compiler/GHC/Runtime/Interpreter.hs
- compiler/GHC/Stg/Lint.hs
- compiler/GHC/StgToCmm/Heap.hs
- compiler/GHC/Tc/Deriv.hs
- compiler/GHC/Tc/Deriv/Infer.hs
- compiler/GHC/Tc/Deriv/Utils.hs
- compiler/GHC/Tc/Errors.hs
- compiler/GHC/Tc/Errors/Hole.hs
- compiler/GHC/Tc/Errors/Ppr.hs
- compiler/GHC/Tc/Errors/Types.hs
- compiler/GHC/Tc/Gen/App.hs
- compiler/GHC/Tc/Gen/Bind.hs
- compiler/GHC/Tc/Gen/Do.hs
- + compiler/GHC/Tc/Gen/Expand.hs
- compiler/GHC/Tc/Gen/Export.hs
- compiler/GHC/Tc/Gen/Expr.hs
- compiler/GHC/Tc/Gen/Expr.hs-boot
- compiler/GHC/Tc/Gen/Head.hs
- compiler/GHC/Tc/Gen/HsType.hs
- compiler/GHC/Tc/Gen/Match.hs
- compiler/GHC/Tc/Gen/Match.hs-boot
- compiler/GHC/Tc/Gen/Pat.hs
- compiler/GHC/Tc/Gen/Sig.hs
- compiler/GHC/Tc/Gen/Splice.hs
- compiler/GHC/Tc/Instance/Class.hs
- compiler/GHC/Tc/Instance/Family.hs
- compiler/GHC/Tc/Instance/FunDeps.hs
- compiler/GHC/Tc/Module.hs
- compiler/GHC/Tc/Solver/Solve.hs
- compiler/GHC/Tc/TyCl.hs
- compiler/GHC/Tc/TyCl/Class.hs
- compiler/GHC/Tc/TyCl/Instance.hs
- compiler/GHC/Tc/TyCl/PatSyn.hs
- compiler/GHC/Tc/TyCl/Utils.hs
- compiler/GHC/Tc/Types.hs
- compiler/GHC/Tc/Types/BasicTypes.hs
- compiler/GHC/Tc/Types/Constraint.hs
- compiler/GHC/Tc/Types/CtLoc.hs
- compiler/GHC/Tc/Types/ErrCtxt.hs
- compiler/GHC/Tc/Types/Evidence.hs
- compiler/GHC/Tc/Types/LclEnv.hs
- compiler/GHC/Tc/Types/Origin.hs
- compiler/GHC/Tc/Types/Origin.hs-boot
- compiler/GHC/Tc/Utils/Instantiate.hs
- compiler/GHC/Tc/Utils/Monad.hs
- compiler/GHC/Tc/Utils/TcMType.hs
- compiler/GHC/Tc/Utils/TcType.hs
- compiler/GHC/Tc/Utils/TcType.hs-boot
- compiler/GHC/Tc/Utils/Unify.hs
- compiler/GHC/Tc/Validity.hs
- compiler/GHC/Tc/Zonk/TcType.hs
- compiler/GHC/Tc/Zonk/Type.hs
- compiler/GHC/Types/Error.hs
- + compiler/GHC/Types/Error.hs-boot
- compiler/GHC/Types/Hint/Ppr.hs
- compiler/GHC/Types/Id.hs
- compiler/GHC/Types/Id/Info.hs
- compiler/GHC/Types/Name/Reader.hs
- compiler/GHC/Types/Name/Set.hs
- compiler/GHC/Types/SrcLoc.hs
- + compiler/GHC/Types/Var/FV.hs
- compiler/GHC/Types/Var/Set.hs
- compiler/GHC/Unit/Finder.hs
- compiler/GHC/Unit/Home/Graph.hs
- compiler/GHC/Unit/State.hs
- + compiler/GHC/Unit/State.hs-boot
- compiler/GHC/Utils/Binary.hs
- compiler/GHC/Utils/EndoOS.hs
- − compiler/GHC/Utils/FV.hs
- compiler/GHC/Utils/Logger.hs
- compiler/GHC/Utils/Trace.hs
- compiler/Language/Haskell/Syntax/Module/Name.hs
- compiler/ghc.cabal.in
- configure.ac
- distrib/configure.ac.in
- docs/users_guide/debug-info.rst
- ghc/GHCi/UI.hs
- ghc/GHCi/UI/Info.hs
- hadrian/cfg/system.config.in
- hadrian/src/Oracles/Setting.hs
- hadrian/src/Rules/Generate.hs
- hadrian/src/Settings/Default.hs
- libraries/base/changelog.md
- libraries/base/tests/enum01.stdout
- libraries/base/tests/enum01.stdout-alpha-dec-osf3
- libraries/base/tests/enum01.stdout-ws-64
- libraries/ghc-internal/src/GHC/Internal/Char.hs
- libraries/ghci/GHCi/Message.hs
- libraries/ghci/GHCi/ObjLink.hs
- libraries/ghci/GHCi/Run.hs
- m4/fp_cc_supports__atomics.m4
- m4/fp_gcc_version.m4
- m4/fptools_set_platform_vars.m4
- m4/ghc_toolchain.m4
- rts/Capability.h
- rts/HeapStackCheck.cmm
- rts/Interpreter.c
- rts/Proftimer.c
- rts/RtsSymbols.c
- rts/Schedule.c
- rts/Schedule.h
- rts/Timer.c
- rts/include/rts/storage/Block.h
- rts/include/stg/MiscClosures.h
- rts/include/stg/SMP.h
- rts/posix/ticker/Pthread.c
- rts/posix/ticker/TimerFd.c
- rts/prim/atomic.c
- rts/sm/Evac.c
- testsuite/driver/testlib.py
- testsuite/tests/arityanal/should_compile/Arity01.stderr
- testsuite/tests/arityanal/should_compile/Arity05.stderr
- testsuite/tests/arityanal/should_compile/Arity08.stderr
- testsuite/tests/arityanal/should_compile/Arity11.stderr
- testsuite/tests/arityanal/should_compile/Arity14.stderr
- testsuite/tests/count-deps/CountDepsAst.stdout
- testsuite/tests/count-deps/CountDepsParser.stdout
- testsuite/tests/cpranal/should_compile/T18401.stderr
- testsuite/tests/deriving/should_fail/deriving-via-fail4.stderr
- + testsuite/tests/driver/T26435.ghc.stderr
- + testsuite/tests/driver/T26435.hs
- + testsuite/tests/driver/T26435.stdout
- testsuite/tests/driver/all.T
- testsuite/tests/driver/bytecode-object/Makefile
- testsuite/tests/driver/bytecode-object/all.T
- testsuite/tests/driver/linkwhole/Main.hs
- testsuite/tests/ghci/prog-mhu001/prog-mhu001c.stdout
- testsuite/tests/ghci/should_run/T18064.script
- testsuite/tests/indexed-types/should_fail/T2693.stderr
- testsuite/tests/indexed-types/should_fail/T5439.stderr
- 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/monadfail/MonadFailErrors.stderr
- testsuite/tests/overloadedrecflds/should_fail/T26480b.stderr
- testsuite/tests/parser/should_fail/RecordDotSyntaxFail10.stderr
- testsuite/tests/parser/should_fail/RecordDotSyntaxFail11.stderr
- testsuite/tests/parser/should_fail/RecordDotSyntaxFail9.stderr
- testsuite/tests/partial-sigs/should_compile/SplicesUsed.stderr
- testsuite/tests/partial-sigs/should_compile/T10403.stderr
- testsuite/tests/partial-sigs/should_compile/T12844.stderr
- testsuite/tests/partial-sigs/should_compile/T15039a.stderr
- testsuite/tests/partial-sigs/should_compile/T15039b.stderr
- testsuite/tests/partial-sigs/should_compile/T15039c.stderr
- testsuite/tests/partial-sigs/should_compile/T15039d.stderr
- testsuite/tests/partial-sigs/should_fail/T10999.stderr
- testsuite/tests/partial-sigs/should_fail/T12634.stderr
- testsuite/tests/plugins/Makefile
- + testsuite/tests/plugins/T24486-plugin/Makefile
- + testsuite/tests/plugins/T24486-plugin/Setup.hs
- + testsuite/tests/plugins/T24486-plugin/T24486-plugin.cabal
- + testsuite/tests/plugins/T24486-plugin/T24486_Plugin.hs
- + testsuite/tests/plugins/T24486.hs
- + testsuite/tests/plugins/T24486_Helper.hs
- testsuite/tests/plugins/all.T
- testsuite/tests/plugins/test-defaulting-plugin.stderr
- testsuite/tests/polykinds/T15789.stderr
- testsuite/tests/polykinds/T18451.stderr
- testsuite/tests/polykinds/T7328.stderr
- testsuite/tests/printer/T17697.stderr
- testsuite/tests/profiling/should_run/callstack001.stdout
- testsuite/tests/rebindable/rebindable6.stderr
- testsuite/tests/rep-poly/RepPolyRecordUpdate.stderr
- testsuite/tests/rts/KeepCafsMain.hs
- testsuite/tests/runghc/Makefile
- + testsuite/tests/runghc/T16145.hs
- + testsuite/tests/runghc/T16145.stdout
- + testsuite/tests/runghc/T16145_aux.hs
- testsuite/tests/runghc/all.T
- testsuite/tests/simplCore/should_compile/DsSpecPragmas.stderr
- testsuite/tests/simplCore/should_compile/T15205.stderr
- testsuite/tests/simplCore/should_compile/T24229a.stderr
- testsuite/tests/simplCore/should_compile/T24229b.stderr
- testsuite/tests/simplCore/should_compile/T24359a.stderr
- testsuite/tests/simplCore/should_compile/T26116.stderr
- testsuite/tests/simplCore/should_compile/T4908.stderr
- testsuite/tests/simplCore/should_compile/spec-inline.stderr
- testsuite/tests/typecheck/no_skolem_info/T20063.stderr
- + testsuite/tests/typecheck/should_compile/ExpansionQLIm.hs
- testsuite/tests/typecheck/should_compile/T14590.stderr
- testsuite/tests/typecheck/should_compile/T25180.stderr
- testsuite/tests/typecheck/should_compile/all.T
- testsuite/tests/typecheck/should_compile/free_monad_hole_fits.stderr
- testsuite/tests/typecheck/should_compile/valid_hole_fits.stderr
- testsuite/tests/typecheck/should_fail/DoExpansion1.stderr
- testsuite/tests/typecheck/should_fail/DoExpansion2.stderr
- testsuite/tests/typecheck/should_fail/T10971d.stderr
- testsuite/tests/typecheck/should_fail/T12589.stderr
- testsuite/tests/typecheck/should_fail/T13311.stderr
- testsuite/tests/typecheck/should_fail/T17773.stderr
- testsuite/tests/typecheck/should_fail/T2846b.stderr
- testsuite/tests/typecheck/should_fail/T3323.stderr
- testsuite/tests/typecheck/should_fail/T3613.stderr
- testsuite/tests/typecheck/should_fail/T6069.stderr
- testsuite/tests/typecheck/should_fail/T7851.stderr
- testsuite/tests/typecheck/should_fail/T7857.stderr
- testsuite/tests/typecheck/should_fail/T8603.stderr
- testsuite/tests/typecheck/should_fail/T9612.stderr
- testsuite/tests/typecheck/should_fail/tcfail102.stderr
- testsuite/tests/typecheck/should_fail/tcfail128.stderr
- testsuite/tests/typecheck/should_fail/tcfail140.stderr
- testsuite/tests/typecheck/should_fail/tcfail181.stderr
- testsuite/tests/wasm/should_run/control-flow/LoadCmmGroup.hs
- utils/check-exact/ExactPrint.hs
- utils/check-exact/Parsers.hs
- utils/check-exact/Transform.hs
- utils/check-exact/Utils.hs
- utils/haddock/haddock-api/src/Haddock/Backends/Hyperlinker/Parser.hs
- utils/haddock/haddock-api/src/Haddock/Backends/Xhtml/Utils.hs
- utils/haddock/haddock-api/src/Haddock/GhcUtils.hs
- utils/jsffi/dyld.mjs
The diff was not included because it is too large.
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Simon Peyton Jones pushed to branch wip/T26989 at Glasgow Haskell Compiler / GHC
Commits:
f04e3882 by Simon Peyton Jones at 2026-04-08T16:21:16+01:00
More wibbles
This now works
- - - - -
2 changed files:
- compiler/GHC/Core/Opt/Simplify/Iteration.hs
- compiler/GHC/Core/Opt/Specialise.hs
Changes:
=====================================
compiler/GHC/Core/Opt/Simplify/Iteration.hs
=====================================
@@ -2657,7 +2657,7 @@ fireRuleAFTER env rule_match arg_specs cont
pushArgs env' Simplified (exprType rhs) rhs_args $
pushArgSpecs env' (drop (ruleArity rule) arg_specs) cont
; return $
- if isEmptyBindWrapper wrap
+ if isEmptyBindWrapper wrap -- Not very pretty
then (floats, e')
else (emptyFloats env', applyBindWrapper wrap $
wrapFloats floats e') }
@@ -2733,7 +2733,7 @@ tryRules env rules fn args
trySeqRules :: SimplEnv
-> OutExpr -> InExpr -- Scrutinee and RHS
-> SimplCont
- -> SimplM (Maybe (CoreExpr, SimplCont))
+ -> SimplM (Maybe (RuleMatch, [ArgSpec], SimplCont))
-- See Note [User-defined RULES for seq]
-- `in_env` applies to `rhs :: InExpr` but not to `scrut :: OutExpr`
trySeqRules in_env scrut rhs cont
@@ -2742,7 +2742,7 @@ trySeqRules in_env scrut rhs cont
; mb_match <- tryRules in_env seq_rules seqId out_args
; case mb_match of
Nothing -> return Nothing
- Just rule_match -> Just <$> fireRuleAFTER in_env rule_match out_arg_specs cont }
+ Just rule_match -> return (Just (rule_match, arg_specs, rule_cont)) }
where
no_cast_scrut = drop_casts scrut
@@ -2756,21 +2756,23 @@ trySeqRules in_env scrut rhs cont
rhs_ty = substTy in_env (exprType rhs)
rhs_rep = getRuntimeRep rhs_ty
- out_args = [Type rhs_rep, Type scrut_ty, Type rhs_ty, no_cast_scrut]
- -- Cheaper than (map argSpecArg out_arg_specs)
- out_arg_specs = [ TyArg { as_arg_ty = rhs_rep
- , as_hole_ty = seq_id_ty }
- , TyArg { as_arg_ty = scrut_ty
- , as_hole_ty = res1_ty }
- , TyArg { as_arg_ty = rhs_ty
- , as_hole_ty = res2_ty }
- , ValArg { as_arg = no_cast_scrut
- , as_dmd = seqDmd
- , as_hole_ty = res3_ty } ]
+ arg_specs :: [ArgSpec]
+ arg_specs = [ TyArg { as_arg_ty = rhs_rep
+ , as_hole_ty = seq_id_ty }
+ , TyArg { as_arg_ty = scrut_ty
+ , as_hole_ty = res1_ty }
+ , TyArg { as_arg_ty = rhs_ty
+ , as_hole_ty = res2_ty }
+ , ValArg { as_arg = no_cast_scrut
+ , as_dmd = seqDmd
+ , as_hole_ty = res3_ty } ]
rule_cont = ApplyToVal { sc_dup = NoDup, sc_arg = rhs
, sc_env = in_env, sc_cont = cont
, sc_hole_ty = res4_ty }
+ out_args = [Type rhs_rep, Type scrut_ty, Type rhs_ty, no_cast_scrut]
+ -- Cheaper than (map argSpecArg out_arg_specs)
+
-- Lazily evaluated, so we don't do most of this
drop_casts (Cast e _) = drop_casts e
drop_casts e = e
@@ -3196,8 +3198,8 @@ rebuildCase env scrut case_bndr alts@[Alt _ bndrs rhs] cont
| is_plain_seq
= do { mb_rule <- trySeqRules env scrut rhs cont
; case mb_rule of
- Just (rule_rhs, cont') -> simplExprF (zapSubstEnv env) rule_rhs cont'
- Nothing -> reallyRebuildCase env scrut case_bndr alts cont }
+ Just (rm, ass, rcont) -> fireRuleAFTER env rm ass rcont
+ Nothing -> reallyRebuildCase env scrut case_bndr alts cont }
--------------------------------------------------
-- 3. Primop-related case-rules
=====================================
compiler/GHC/Core/Opt/Specialise.hs
=====================================
@@ -1801,7 +1801,7 @@ alreadyCovered :: SpecEnv
alreadyCovered env bndrs fn args is_active rules
= case specLookupRule env fn args is_active rules of
Nothing -> False
- Just (rule, _,_)
+ Just (rule, _)
| isAutoRule rule -> -- Discard identical rules
-- We know that (fn args) is an instance of RULE
-- Check if RULE is an instance of (fn args)
@@ -1821,7 +1821,10 @@ specLookupRule env fn args is_active rules
= Nothing -- Saves building a few thunks in the common case
| otherwise
= case lookupRule ropts in_scope_env is_active fn args rules of
- Just (rule, rule_rhs, rule_args) -> Just (rule, mkApps rule_rhs rule_args)
+ Just (RM { rm_rule = rule, rm_rhs = rule_rhs
+ , rm_binds = wrap, rm_args = rule_args })
+ -> Just (rule, applyBindWrapper wrap (mkApps rule_rhs rule_args))
+ Nothing -> Nothing
where
dflags = se_dflags env
in_scope = substInScopeSet (se_subst env)
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/f04e3882d7bd57bbd14b08f6b1d00c1…
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08 Apr '26
Rodrigo Mesquita pushed new branch wip/romes/25890 at Glasgow Haskell Compiler / GHC
--
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[Git][ghc/ghc][wip/jeltsch/text-read-implementation-into-base] 63 commits: Fix assert in Interpreter.c
by Wolfgang Jeltsch (＠jeltsch) 08 Apr '26
by Wolfgang Jeltsch (＠jeltsch) 08 Apr '26
08 Apr '26
Wolfgang Jeltsch pushed to branch wip/jeltsch/text-read-implementation-into-base at Glasgow Haskell Compiler / GHC
Commits:
404b71c1 by Luite Stegeman at 2026-03-27T04:40:49-04:00
Fix assert in Interpreter.c
If we skip exactly the number of words on the stack we end up on
the first word in the next chunk.
- - - - -
a85bd503 by Luite Stegeman at 2026-03-27T04:40:49-04:00
Support arbitrary size unboxed tuples in bytecode
This stores the size (number of words on the stack) of the next
expected tuple in the TSO, ctoi_spill_size field, eliminating
the need of stg_ctoi_tN frames for each size.
Note: On 32 bit platform there is still a bytecode tuple size
limit of 255 words on the stack.
Fixes #26946
- - - - -
e2209031 by Luite Stegeman at 2026-03-27T04:40:49-04:00
Add specialized frames for small tuples
Small tuples are now returned more efficiently to the interpreter.
They use one less word of stack space and don't need manipulation
of the TSO anymore.
- - - - -
b26bb2ea by VeryMilkyJoe at 2026-03-27T04:41:38-04:00
Remove backwards compatibility pattern synonym `ModLocation`
Fixes #24932
- - - - -
66e5e324 by Vladislav Zavialov at 2026-03-27T04:42:25-04:00
Extend HsExpr with the StarIsType syntax (#26587, #26967)
This patch allows kinds of the form `k -> *` and `* -> k` to occur in
expression syntax, i.e. to be used as required type arguments.
For example:
{-# LANGUAGE RequiredTypeArguments, StarIsType #-}
x1 = f (* -> * -> *)
x2 = f (forall k. k -> *)
x3 = f ((* -> *) -> Constraint)
Summary of the changes:
* Introduce the HsStar constructor of HsExpr and its extension field XStar.
It is analogous to HsStarTy in HsType.
* Refactor HsStarTy to store the unicode flag as TokStar, defined as
type TokStar = EpUniToken "*" "★" -- similar to TokForall, TokRArrow, etc.
The token is stored in the extension field and replaces the Bool field.
* Extend the `infixexp2` nonterminal to parse `*` as a direct argument of `->`.
This is more limited than the full StarIsType syntax, but has the nice
property of not conflicting with the multiplication operator `a * b`.
Test case: T26967 T26967_tyop
- - - - -
f8de456f by Sylvain Henry at 2026-03-27T04:43:22-04:00
STM: don't create a transaction in the rhs of catchRetry# (#26028)
We don't need to create a transaction for the rhs of (catchRetry#)
because contrary to the lhs we don't need to abort it on retry. Moreover
it is particularly harmful if we have code such as (#26028):
let cN = readTVar vN >> retry
tree = c1 `orElse` (c2 `orElse` (c3 `orElse` ...))
atomically tree
Because it will stack transactions for the rhss and the read-sets of all
the transactions will be iteratively merged in O(n^2) after the
execution of the most nested retry.
This is the second attempt at implementing this. The first attempt
triggered segfaults (#26291) and has been reverted.
Co-Authored-By: Claude Sonnet 4.6 <noreply(a)anthropic.com>
- - - - -
fcf092dd by Luite Stegeman at 2026-03-27T04:44:17-04:00
Windows: remove StgAsyncIOResult and fix crash/leaks
In stg_block_async{_void}, a stack slot was reserved for
an StgAsyncIOResult. This slot would be filled by the IO
manager upon completion of the async call.
However, if the blocked thread was interrupted by an async
exception, we would end up in an invalid state:
- If the blocked computation was never re-entered, the
StgAsyncIOResult would never be freed.
- If the blocked computation was re-entered, the thread would
find an unitialized stack slot for the StgAsyncIOResult,
leading to a crash reading its fields, or freeing the pointer.
We fix this by removing the StgAsyncIOResult altogether and writing
the result directly to the stack.
Fixes #26341
- - - - -
05094993 by Luite Stegeman at 2026-03-27T04:45:12-04:00
Don't refine DEFAULT alt for unary typeclasses
A non-DEFAULT data alt for a unary typeclass dictionary would
interfere with Unary Class Magic, leading to segfaults.
fixes #27071
- - - - -
4ee260cf by sheaf at 2026-03-27T04:46:06-04:00
Fix several oversights in hsExprType
This commit fixes several oversights in GHC.Hs.Syn.Type.hsExprType:
- The 'RecordCon' case was returning the type of the constructor,
instead of the constructor application. This is fixed by using
'splitFunTys'.
- The 'ExplicitTuple' case failed to take into account tuple sections,
and was also incorrectly handling 1-tuples (e.g. 'Solo') which can
be constructed using Template Haskell.
- The 'NegApp' case was returning the type of the negation operator,
again failing to apply it to the argument. Fixed by using
'funResultTy'.
- The 'HsProc' case was computing the result type of the arrow proc
block, without taking into account the argument type. Fix that by
adding a new field to 'CmdTopTc' that stores the arrow type, so that
we can construct the correct result type `arr a b` for
`proc (pat :: a) -> (cmd :: b)`.
- The 'ArithSeq' and 'NegApp' cases were failing to take into account
the result 'HsWrapper', which could e.g. silently drop casts.
This is fixed by introducing 'syntaxExpr_wrappedFunResTy' which, on
top of taking the result type, applies the result 'HsWrapper'.
These fixes are validated by the new GHC API test T26910.
Fixes #26910
- - - - -
e97232ce by Hai at 2026-03-27T04:47:04-04:00
Parser.y: avoid looking at token with QualifiedDo
This changes the behavior of 'hintQualifiedDo' so that the supplied
token is not inspected when the QualifiedDo language extension bit is
set.
- - - - -
9831385b by Vladislav Zavialov at 2026-03-27T17:22:30-04:00
Infix holes in types (#11107)
This patch introduces several improvements that follow naturally from
refactoring HsOpTy to represent the operator as an HsType, aligning it
with the approach taken by OpApp and HsExpr.
User-facing changes:
1. Infix holes (t1 `_` t2) are now permitted in types, following the
precedent set by term-level expressions.
Test case: T11107
2. Error messages for illegal promotion ticks are now reported at more
precise source locations.
Test case: T17865
Internal changes:
* The definition of HsOpTy now mirrors that of OpApp:
| HsOpTy (XOpTy p) (LHsType p) (LHsType p) (LHsType p)
| OpApp (XOpApp p) (LHsExpr p) (LHsExpr p) (LHsExpr p)
This moves us one step closer to unifying HsType and HsExpr.
* Ignoring locations,
the old pattern match (HsOpTy x prom lhs op rhs)
is now written as (HsOpTy x lhs (HsTyVar x' prom op) rhs)
but we also handle (HsOpTy x lhs (HsWildCardTy x') rhs)
Constructors other than HsTyVar and HsWildCardTy never appear
in the operator position.
* The various definitions across the compiler have been updated to work
with the new representation, drawing inspiration from the term-level
pipeline where appropriate. For example,
ppr_infix_ty <=> ppr_infix_expr
get_tyop <=> get_op
lookupTypeFixityRn <=> lookupExprFixityRn
(the latter is factored out from rnExpr)
Test cases: T11107 T17865
- - - - -
5b6757d7 by mangoiv at 2026-03-27T17:23:19-04:00
ci: build i386 non-validate for deb12
This is a small fix that will unlock ghcup metadata to run, i386 debian
12 was missing as a job.
- - - - -
cf942119 by Cheng Shao at 2026-03-30T15:24:37-04:00
ghc-boot: remove unused SizedSeq instances and functions
This commit removes unused `SizedSeq` instances and functions, only
keeping the bits we need for hpc tick sequence for now.
- - - - -
22c5b7cc by Cheng Shao at 2026-03-30T15:24:38-04:00
ghci: remove unused GHCi.BinaryArray
This patch removes the unused `GHCi.BinaryArray` module from `ghci`.
Closes #27108.
- - - - -
77abb4ab by Cheng Shao at 2026-03-30T15:25:21-04:00
testsuite: mark T17912 as fragile on Windows
T17912 is still fragile on Windows, it sometimes unexpectedly pass in
CI. This especially strains our already scarce Windows CI runner
resources. Mark it as fragile on Windows for the time being.
- - - - -
d741a6cc by Andreas Klebinger at 2026-03-31T04:39:33-04:00
Bump minimum shake version for hadrian.
We also add the shake version we want to stack.yaml
Fixes #26884
- - - - -
5e556f9e by Vladislav Zavialov at 2026-03-31T04:40:16-04:00
Status check for the HsType~HsExpr refactoring (#25121)
Add a test case to track the status of a refactoring project within GHC
whose goal is to arrive at the following declaration:
type HsType = HsExpr
The rationale for this is to increase code reuse between the term- and
type-level code in the compiler front-end (AST, parser, renamer, type checker).
The status report is saved to testsuite/tests/ghc-api/T25121_status.stdout
and provides useful insights into what needs to happen to make progress on
the ticket.
- - - - -
acffb1b1 by fendor at 2026-03-31T04:41:02-04:00
Extract Binary instances to `GHC.ByteCode.Binary`
- - - - -
e2ea8e25 by fendor at 2026-03-31T04:41:02-04:00
Add `seqNonEmpty` for evaluating `NonEmpty a`
- - - - -
048b00b7 by fendor at 2026-03-31T04:41:02-04:00
Record `LinkableUsage` instead of `Linkable` in `LoaderState`
Retaining a ByteCode `Linkable` after it has been loaded retains its
`UnlinkedBCO`, keeping it alive for the remainder of the program.
This starts accumulating a lot of `UnlinkedBCO` and memory over time.
However, the `Linkable` is merely used to later record its usage in
`mkObjectUsage`, which is used for recompilation checking.
However, this is incorrect, as the interface file and bytecode objects
could be in different states, e.g. the interface changes, but the
bytecode library hasn't changed so we don't need to recompile and vice
versa.
By computing a `Fingerprint` for the `ModuleByteCode`, and recording it
in the `LinkableUsage`, we know precisely whether the `ByteCode` object
on disk is outdated.
Thus, parts of this commit just makes sure that we efficiently compute a
`Fingerprint` for `ModuleByteCode` and store it in the on-disk
representation of `ModuleByteCode`.
We change the `LoaderState` to retain `LinkableUsage`, which is smaller
representation of a `Linkable`. This allows us to free the unneeded
fields of `Linkable` after linking them.
We declare the following memory invariants that this commit implements:
* No `LinkablePart` should be retained from `LoaderState`.
* `Linkable`s should be unloaded after they have been loaded.
These invariants are unfortunately tricky to automatically uphold, so we
are simply documenting our assumptions for now.
We introduce the `linkable-space` test which makes sure that after
loading, no `DotGBC` or `UnlinkedBCO` is retained.
-------------------------
Metric Increase:
MultiLayerModulesTH_OneShot
-------------------------
We allocate a bit more, but the peak number of bytes doesn't change.
While a bit unfortunate, accepting the metric increase.
We add multiple new performance measurements where we were able to
observe the desired memory invariants. Further, we add regression tests
to validate that the recompilation checker behaves more correct than
before.
- - - - -
2d1c1997 by Simon Jakobi at 2026-03-31T04:41:46-04:00
Eliminate dictionary-passing in ListMap operations
Mark the ListMap helpers 'INLINABLE' so importing modules can specialise
the 'TrieMap (ListMap m)' methods and avoid recursive dictionary-passing.
See Note [Making ListMap operations specialisable].
Fixes #27097
- - - - -
ed2c6570 by Cheng Shao at 2026-03-31T04:42:33-04:00
testsuite: fix testdir cleanup logic on Windows
testdir cleanup is unreliable on Windows (#13162) and despite existing
hacks in the driver, new failure mode has occurred. This patch makes
it print the warning and carry on when failed to clean up a testdir,
instead of reporting a spurious framework failure. See added comment
for detailed explanation.
- - - - -
d9388e29 by Simon Jakobi at 2026-03-31T13:14:59-04:00
Add regression test for #18177
Closes #18177.
Assisted-by: Codex
- - - - -
6a10045c by mangoiv at 2026-03-31T13:15:43-04:00
ci: allow metric decrease for two tests on i386
There has been a nightly failure on i386 due to a compiler runtime
improvement on i386 debian 12. We allow that.
Metric Decrease (test_env='i386-linux-deb12'):
T12707 T8095
- - - - -
7fbb4fcb by Rodrigo Mesquita at 2026-04-01T12:16:33+00:00
Bump default language edition to GHC2024
As per the accepted ghc-proposal#632
Fixes #26039
- - - - -
5ae43275 by Peng Fan at 2026-04-01T19:01:06-04:00
NCG/LA64: add cmpxchg and xchg primops
And append some new instructions for LA664 uarch.
Apply fix to cmpxchg-prim by Andreas Klebinger.
Suggestions in https://gitlab.haskell.org/ghc/ghc/-/merge_requests/15515
- - - - -
8f95534a by Duncan Coutts at 2026-04-01T19:01:52-04:00
Remove signal-based ticker implementations
Fixes issue #27073
All supported platforms should work with the pthreads + nanosleep based
ticker implementation. This avoids all the problems with using signals.
In practice, all supported platforms were probably using the non-signal
tickers already, which is probably why we do not get lots of reports
about deadlocks and other weirdness: we were definately using functions
that are not async signal safe in the tick handler (such as fflush to
flussh the eventlog).
Only Solaris was explicitly using the timer_create ticker impl, and even
Solaris could probably use the pthreads one (if anyone cared: Solaris is
no longer a Teir 3 supported platform).
Plausibly the only supported platform that this will change will be AIX,
which should now use the pthreads impl.
- - - - -
51b32b0d by Duncan Coutts at 2026-04-01T19:01:52-04:00
Tidy up some timer/ticker comments elsewhere
- - - - -
7562bcd7 by Duncan Coutts at 2026-04-01T19:01:52-04:00
Remove now-unused install_vtalrm_handler
Support function used by both of the signal-based ticker
implementations.
- - - - -
6da127c7 by Duncan Coutts at 2026-04-01T19:01:52-04:00
No longer probe for timer_create in rts/configure
It was only used by the TimerCreate.c ticker impl.
- - - - -
3fd490fa by Duncan Coutts at 2026-04-01T19:01:53-04:00
Note that rtsTimerSignal is deprecated.
- - - - -
63099b0f by Simon Jakobi at 2026-04-01T19:02:39-04:00
Add perf test for #13960
Closes #13960.
- - - - -
58009c14 by Apoorv Ingle at 2026-04-02T09:51:24+01:00
Streamline expansions using HsExpansion (#25001)
Notes added [Error Context Stack] [Typechecking by expansion: overview]
Notes updated Note [Expanding HsDo with XXExprGhcRn] [tcApp: typechecking applications]
-------------------------
Metric Decrease:
T9020
-------------------------
There are 2 key changes:
1. `HsExpand` datatype mediates between expansions
2. Replace `ErrCtxtM` to a simpler `HsCtxt` that does not depend on a `TidyEnv`
This has some consequences detailed below:
1. `HsExpand` datatype mediates between expansions
* Simplifies the implementations of `tcExpr` to work on `XExpr`
* Removes `VACtxt` (and its associated `VAExpansion` and `VACall`) datatype, it is subsumed by simply a `SrcSpan`.
* Removes the function `addHeadCtxt` as it is now mearly setting a location
* The function `tcValArgs` does its own argument number management
* move `splitHsTypes` out of `tcApp`
* Removes special case of tcBody from `tcLambdaMatches`
* Removes special case of `dsExpr` for `ExpandedThingTc`
* Renames `tcMonoExpr` -> `tcMonoLExpr`, `tcMonoExprNC` -> `tcMonoLExpr`
* Renames `EValArg`, `EValArgQL` fields: `ea_ctxt` -> `ea_loc_span` and `eaql_ctx` -> `eaql_loc_span`
* Remove `PopErrCtxt` from `XXExprGhcRn`
* `fun_orig` in tcInstFun depends on the SrcSpan of the head of the application chain (similar to addArgCtxt)
- it references the application chain head if it is user located, or
uses the error context stack as a fallback if it's a generated
location
* Make a new variant `GeneratedSrcSpan` in `SrcSpan` for HIEAst Nodes
- Expressions wrapped around `GeneratedSrcSpan` are ignored and never added to the error context stack
- In Explicit list expansion `fromListN` is wrapped with a `GeneratedSrcSpan` with `GeneratedSrcSpanDetails` field to store the original srcspan
2. Replace `ErrCtxtM` to a simpler `HsCtxt` that does not depend on a `TidyEnv`
* Merge `HsThingRn` to `HsCtxt`
* Landmark Error messages are now just computed on the fly
* Make HsExpandedRn and HsExpandedTc payload a located HsExpr GhcRn
* `HsCtxt` are tidied and zonked at the end right before printing
Co-authored-by: simonpj <simon.peytonjones(a)gmail.com>
- - - - -
bc4b4487 by Zubin Duggal at 2026-04-03T14:22:27-04:00
driver: recognise .dyn_o as a valid object file to link if passed on the command line.
This allows plugins compiled with this suffix to run.
Fixes #24486
- - - - -
5ebb9121 by Simon Jakobi at 2026-04-03T14:23:11-04:00
Add regression test for #16145
Closes #16145.
- - - - -
c1fc1c44 by Simon Peyton Jones at 2026-04-03T19:56:07-04:00
Refactor eta-expansion in Prep
The Prep pass does eta-expansion but I found cases where it was
doing bad things. So I refactored and simplified it quite a bit.
In the new design
* There is no distinction between `rhs` and `body`; in particular,
lambdas can now appear anywhere, rather than just as the RHS of
a let-binding.
* This change led to a significant simplification of Prep, and
a more straightforward explanation of eta-expansion. See the new
Note [Eta expansion]
* The consequences is that CoreToStg needs to handle naked lambdas.
This is very easy; but it does need a unique supply, which forces
some simple refactoring. Having a unique supply to hand is probably
a good thing anyway.
- - - - -
21beda2c by Simon Peyton Jones at 2026-04-03T19:56:07-04:00
Clarify Note [Interesting dictionary arguments]
Ticket #26831 ended up concluding that the code for
GHC.Core.Opt.Specialise.interestingDict was good, but the
commments were a bit inadequate.
This commit improves the comments slightly.
- - - - -
3eaac1f2 by Simon Peyton Jones at 2026-04-03T19:56:07-04:00
Make inlining a bit more eager for overloaded functions
If we have
f d = ... (class-op d x y) ...
we should be eager to inline `f`, because that may change the
higher order call (class-op d x y) into a call to a statically
known function.
See the discussion on #26831.
Even though this does a bit /more/ inlining, compile times
decrease by an average of 0.4%.
Compile time changes:
DsIncompleteRecSel3(normal) 431,786,104 -2.2%
ManyAlternatives(normal) 670,883,768 -1.6%
ManyConstructors(normal) 3,758,493,832 -2.6% GOOD
MultilineStringsPerf(normal) 29,900,576 -2.8%
T14052Type(ghci) 1,047,600,848 -1.2%
T17836(normal) 392,852,328 -5.2%
T18478(normal) 442,785,768 -1.4%
T21839c(normal) 341,536,992 -14.1% GOOD
T3064(normal) 174,086,152 +5.3% BAD
T5631(normal) 506,867,800 +1.0%
hard_hole_fits(normal) 209,530,736 -1.3%
info_table_map_perf(normal) 19,523,093,184 -1.2%
parsing001(normal) 377,810,528 -1.1%
pmcOrPats(normal) 60,075,264 -0.5%
geo. mean -0.4%
minimum -14.1%
maximum +5.3%
Runtime changes
haddock.Cabal(normal) 27,351,988,792 -0.7%
haddock.base(normal) 26,997,212,560 -0.6%
haddock.compiler(normal) 219,531,332,960 -1.0%
Metric Decrease:
LinkableUsage01
ManyConstructors
T17949
T21839c
T13035
TcPlugin_RewritePerf
hard_hole_fits
Metric Increase:
T3064
- - - - -
5cbc2c82 by Matthew Pickering at 2026-04-03T19:57:02-04:00
bytecode: Add magic header/version to bytecode files
In order to avoid confusing errors when using stale interface files (ie
from an older compiler version), we add a simple header/version check
like the one for interface files.
Fixes #27068
- - - - -
d95a1936 by fendor at 2026-04-03T19:57:02-04:00
Add constants for bytecode in-memory buffer size
Introduce a common constant for the default size of the .gbc and
.bytecodelib binary buffer.
The buffer is by default set to 1 MB.
- - - - -
b822c30a by mangoiv at 2026-04-03T19:57:49-04:00
testsuite: filter stderr for static001 on darwin
This reactivates the test on x86_64 darwin as this should have been done
long ago and ignores warnings emitted by ranlib on newer version of the
darwin toolchain since they are benign. (no symbols for stub libraries)
Fixes #27116
- - - - -
28ce1f8a by Andreas Klebinger at 2026-04-03T19:58:44-04:00
Give the Data instance for ModuleName a non-bottom toConstr implementation.
I've also taken the liberty to add Note [Data.Data instances for GHC AST Types]
describing some of the uses of Data.Data I could find.
Fixes #27129
- - - - -
8ca41ffe by mangoiv at 2026-04-03T19:59:30-04:00
issue template: fix add bug label
- - - - -
3981db0c by Sylvain Henry at 2026-04-03T20:00:33-04:00
Add more canned GC functions for common register patterns (#27142)
Based on analysis of heap-check sites across the GHC compiler and Cabal,
the following patterns were not covered by existing canned GC functions
but occurred frequently enough to warrant specialisation:
stg_gc_ppppp -- 5 GC pointers
stg_gc_ip -- unboxed word + GC pointer
stg_gc_pi -- GC pointer + unboxed word
stg_gc_ii -- two unboxed words
stg_gc_bpp -- byte (I8) + two GC pointers
Adding these reduces the fraction of heap-check sites falling back to
the generic GC path from ~1.4% to ~0.4% when compiling GHC itself.
Co-Authored-By: Claude Sonnet 4.6 <noreply(a)anthropic.com>
- - - - -
d17d1435 by Matthew Pickering at 2026-04-03T20:01:19-04:00
Make home unit dependencies stored as sets
Co-authored-by: Wolfgang Jeltsch <wolfgang(a)well-typed.com>
- - - - -
92a97015 by Simon Peyton Jones at 2026-04-05T00:58:57+01:00
Add Invariant (NoTypeShadowing) to Core
This commit addresses #26868, by adding
a new invariant (NoTypeShadowing) to Core.
See Note [No type-shadowing in Core] in GHC.Core
- - - - -
8b5a5020 by Simon Peyton Jones at 2026-04-05T00:58:57+01:00
Major refactor of free-variable functions
For some time we have had two free-variable mechanims for types:
* The "FV" mechanism, embodied in GHC.Utils.FV, which worked OK, but
was fragile where eta-expansion was concerned.
* The TyCoFolder mechanism, using a one-shot EndoOS accumulator
I finally got tired of this and refactored the whole thing, thereby
addressing #27080. Now we have
* `GHC.Types.Var.FV`, which has a composable free-variable result type,
very much in the spirit of the old `FV`, but much more robust.
(It uses the "one shot trick".)
* GHC.Core.TyCo.FVs now has just one technology for free variables.
All this led to a lot of renaming.
There are couple of error-message changes. The change in T18451
makes an already-poor error message even more mysterious. But
it really needs a separate look.
We also now traverse the AST in a different order leading to a different
but still deterministic order for FVs and test output has been adjusted
accordingly.
- - - - -
4bf040c6 by sheaf at 2026-04-05T14:56:29-04:00
Add utility pprTrace_ function
This function is useful for quick debugging, as it can be added to a
where clause to pretty-print debugging information:
fooBar x y
| cond = body1
| otherwise = body2
where
!_ = pprTrace_ "fooBar" $
vcat [ text "x:" <+> ppr x
, text "y:" <+> ppr y
, text "cond:" <+> ppr cond
]
- - - - -
502e6ffe by Andrew Lelechenko at 2026-04-07T04:47:21-04:00
base: improve error message for Data.Char.chr
As per https://github.com/haskell/core-libraries-committee/issues/384
- - - - -
b21bd52e by Simon Peyton Jones at 2026-04-07T04:48:07-04:00
Refactor FunResCtxt a bit
Fixes #27154
- - - - -
7fe84ea5 by Zubin Duggal at 2026-04-07T19:11:52+05:30
compiler: Warn when -finfo-table-map is used with -fllvm
These are currently not supported together.
Fixes #26435
- - - - -
4a45a7da by Matthew Pickering at 2026-04-08T04:37:29-04:00
packaging: correctly propagate build/host/target to bindist configure script
At the moment the host and target which we will produce a compiler for
is fixed at the initial configure time. Therefore we need to persist
the choice made at this time into the installation bindist as well so we
look for the right tools, with the right prefixes at install time.
In the future, we want to provide a bit more control about what kind of
bindist we produce so the logic about what the host/target will have to
be written by hadrian rather than persisted by the configure script. In
particular with cross compilers we want to either build a normal stage 2
cross bindist or a stage 3 bindist, which creates a bindist which has a
native compiler for the target platform.
Fixes #21970
Co-authored-by: Sven Tennie <sven.tennie(a)gmail.com>
- - - - -
b0950df6 by Sven Tennie at 2026-04-08T04:37:29-04:00
Cross --host and --target no longer required for cross (#21970)
We set sane defaults in the configure script. Thus, these paramenters
aren't required any longer.
- - - - -
fef35216 by Sven Tennie at 2026-04-08T04:37:30-04:00
ci: Define USER_CONF_CC_OPTS_STAGE2 for aarch64/mingw
ghc-toolchain doesn't see $CONF_CC_OPTS_STAGE2 when the bindist gets
configured. So, the hack to override the compiler gets lost.
- - - - -
8dd6f453 by Cheng Shao at 2026-04-08T04:38:11-04:00
ghci: use ShortByteString for LookupSymbol/LookupSymbolInDLL/LookupClosure messages
This patch refactors ghci to use `ShortByteString` for
`LookupSymbol`/`LookupSymbolInDLL`/`LookupClosure` messages as the
first part of #27147.
Co-authored-by: Codex <codex(a)openai.com>
- - - - -
371ef200 by Cheng Shao at 2026-04-08T04:38:11-04:00
ghci: use ShortByteString for MkCostCentres message
This patch refactors ghci to use `ShortByteString` for `MkCostCentres`
messages as a first part of #27147. This also considerably lowers the
memory overhead of breakpoints when cost center profiling is enabled.
-------------------------
Metric Decrease:
interpreter_steplocal
-------------------------
Co-authored-by: Codex <codex(a)openai.com>
- - - - -
7785bad6 by Wolfgang Jeltsch at 2026-04-08T16:25:09+03:00
Move most of the `System.IO` implementation into `base`
This involves a rewrite of the `combine` helper function to avoid the
use of `last`, which would now be flagged as an error.
Metric Increase:
T12227
T12707
T5642
- - - - -
0f34ce59 by Wolfgang Jeltsch at 2026-04-08T16:28:15+03:00
Move I/O-related `Read` instances into `base`
Metric Increase:
T12425
T13035
- - - - -
e8416e24 by Wolfgang Jeltsch at 2026-04-08T16:28:18+03:00
Move most of the `Numeric` implementation into `base`
The `showHex` operation and the `showIntAtBase` operation, which
underlies it, are kept in `GHC.Internal.Numeric`, because `showHex` is
used in a few places in `ghc-internal`; everything else is moved.
- - - - -
212ca1c4 by Wolfgang Jeltsch at 2026-04-08T16:28:18+03:00
Move the instance `Read ByteOrder` into `base`
- - - - -
e490e98f by Wolfgang Jeltsch at 2026-04-08T16:28:18+03:00
Move the implementation of version parsing into `base`
- - - - -
5477c7f8 by Wolfgang Jeltsch at 2026-04-08T16:58:19+03:00
Move the implementation of `readConstr` into `base`
- - - - -
0243c1a4 by Wolfgang Jeltsch at 2026-04-08T17:07:23+03:00
Move the `Text.Read` implementation into `base`
- - - - -
573 changed files:
- .gitlab/ci.sh
- .gitlab/generate-ci/gen_ci.hs
- .gitlab/issue_templates/default.md
- .gitlab/jobs.yaml
- .gitlab/rel_eng/mk-ghcup-metadata/mk_ghcup_metadata.py
- compiler/GHC.hs
- compiler/GHC/Builtin/PrimOps.hs
- compiler/GHC/ByteCode/Asm.hs
- + compiler/GHC/ByteCode/Binary.hs
- compiler/GHC/ByteCode/Breakpoints.hs
- compiler/GHC/ByteCode/Instr.hs
- + compiler/GHC/ByteCode/Recomp/Binary.hs
- compiler/GHC/ByteCode/Serialize.hs
- compiler/GHC/ByteCode/Types.hs
- compiler/GHC/CmmToAsm/LA64/CodeGen.hs
- compiler/GHC/CmmToAsm/LA64/Instr.hs
- compiler/GHC/CmmToAsm/LA64/Ppr.hs
- compiler/GHC/Core.hs
- compiler/GHC/Core/Coercion.hs
- compiler/GHC/Core/FVs.hs
- compiler/GHC/Core/Lint.hs
- compiler/GHC/Core/Opt/Arity.hs
- compiler/GHC/Core/Opt/DmdAnal.hs
- compiler/GHC/Core/Opt/SetLevels.hs
- compiler/GHC/Core/Opt/Specialise.hs
- compiler/GHC/Core/Rules.hs
- compiler/GHC/Core/Subst.hs
- compiler/GHC/Core/Tidy.hs
- compiler/GHC/Core/TyCo/FVs.hs
- compiler/GHC/Core/TyCo/Rep.hs
- compiler/GHC/Core/TyCo/Subst.hs
- compiler/GHC/Core/TyCon.hs
- compiler/GHC/Core/Type.hs
- compiler/GHC/Core/Unfold.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/Data/TrieMap.hs
- compiler/GHC/Driver/Flags.hs
- compiler/GHC/Driver/Hooks.hs
- compiler/GHC/Driver/Main.hs
- compiler/GHC/Driver/Phases.hs
- compiler/GHC/Driver/Pipeline.hs
- compiler/GHC/Driver/Plugins.hs
- compiler/GHC/Driver/Session.hs
- compiler/GHC/Hs/DocString.hs
- compiler/GHC/Hs/Expr.hs
- compiler/GHC/Hs/Expr.hs-boot
- compiler/GHC/Hs/Instances.hs
- compiler/GHC/Hs/Syn/Type.hs
- compiler/GHC/Hs/Type.hs
- compiler/GHC/Hs/Utils.hs
- compiler/GHC/HsToCore/Arrows.hs
- compiler/GHC/HsToCore/Binds.hs
- compiler/GHC/HsToCore/Breakpoints.hs
- compiler/GHC/HsToCore/Expr.hs
- compiler/GHC/HsToCore/Match.hs
- compiler/GHC/HsToCore/Monad.hs
- compiler/GHC/HsToCore/Pmc.hs
- compiler/GHC/HsToCore/Quote.hs
- compiler/GHC/HsToCore/Ticks.hs
- compiler/GHC/HsToCore/Usage.hs
- compiler/GHC/Iface/Ext/Ast.hs
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- testsuite/tests/typecheck/should_fail/tcfail084.hs
- testsuite/tests/typecheck/should_fail/tcfail084.stderr
- testsuite/tests/typecheck/should_fail/tcfail094.hs
- testsuite/tests/typecheck/should_fail/tcfail094.stderr
- testsuite/tests/typecheck/should_fail/tcfail102.stderr
- testsuite/tests/typecheck/should_fail/tcfail128.stderr
- testsuite/tests/typecheck/should_fail/tcfail140.stderr
- testsuite/tests/typecheck/should_fail/tcfail181.stderr
- testsuite/tests/typecheck/should_run/T1735.hs
- testsuite/tests/typecheck/should_run/T1735_Help/Basics.hs
- testsuite/tests/typecheck/should_run/T3731.hs
- 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_compile/T26967.hs
- + testsuite/tests/vdq-rta/should_compile/T26967.stderr
- + testsuite/tests/vdq-rta/should_compile/T26967_tyop.hs
- + testsuite/tests/vdq-rta/should_compile/T26967_tyop.stderr
- testsuite/tests/vdq-rta/should_compile/all.T
- testsuite/tests/vdq-rta/should_fail/T24159_type_syntax_th_fail.script
- testsuite/tests/warnings/should_fail/CaretDiagnostics1.hs
- testsuite/tests/warnings/should_fail/CaretDiagnostics1.stderr
- testsuite/tests/warnings/should_fail/T24396c.hs
- testsuite/tests/warnings/should_fail/T24396c.stderr
- testsuite/tests/wasm/should_run/control-flow/LoadCmmGroup.hs
- utils/check-exact/ExactPrint.hs
- utils/check-exact/Parsers.hs
- utils/check-exact/Transform.hs
- utils/check-exact/Utils.hs
- utils/deriveConstants/Main.hs
- utils/haddock/haddock-api/src/Haddock/Backends/Hoogle.hs
- utils/haddock/haddock-api/src/Haddock/Backends/Hyperlinker/Parser.hs
- utils/haddock/haddock-api/src/Haddock/Backends/LaTeX.hs
- utils/haddock/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs
- utils/haddock/haddock-api/src/Haddock/Backends/Xhtml/Utils.hs
- utils/haddock/haddock-api/src/Haddock/Convert.hs
- utils/haddock/haddock-api/src/Haddock/GhcUtils.hs
- utils/haddock/haddock-api/src/Haddock/Interface/Rename.hs
- utils/haddock/haddock-api/src/Haddock/Interface/RenameType.hs
- utils/haddock/html-test/ref/Bug1004.html
- utils/haddock/html-test/ref/Bug973.html
- utils/haddock/html-test/ref/ConstructorPatternExport.html
- utils/haddock/html-test/ref/DefaultSignatures.html
- utils/haddock/html-test/ref/Hash.html
- utils/haddock/html-test/ref/PatternSyns.html
- utils/haddock/html-test/ref/PatternSyns2.html
- utils/haddock/html-test/ref/QuasiExpr.html
- utils/haddock/html-test/ref/Test.html
- utils/jsffi/dyld.mjs
The diff was not included because it is too large.
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/129fcf8079f94d3cb7816a2b0d75f9…
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View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/compare/129fcf8079f94d3cb7816a2b0d75f9…
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[Git][ghc/ghc][wip/jeltsch/text-read-uncovering] Move the implementation of `readConstr` into `base`
by Wolfgang Jeltsch (＠jeltsch) 08 Apr '26
by Wolfgang Jeltsch (＠jeltsch) 08 Apr '26
08 Apr '26
Wolfgang Jeltsch pushed to branch wip/jeltsch/text-read-uncovering at Glasgow Haskell Compiler / GHC
Commits:
5477c7f8 by Wolfgang Jeltsch at 2026-04-08T16:58:19+03:00
Move the implementation of `readConstr` into `base`
- - - - -
6 changed files:
- libraries/base/src/Data/Data.hs
- libraries/ghc-internal/src/GHC/Internal/Data/Data.hs
- 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
Changes:
=====================================
libraries/base/src/Data/Data.hs
=====================================
@@ -99,3 +99,38 @@ module Data.Data (
import GHC.Internal.Data.Data
import Data.Typeable
+
+import GHC.Real (toRational)
+import GHC.Float (Double)
+import Data.Eq ((==))
+import Data.Function ((.))
+import Data.Maybe (Maybe (Nothing, Just))
+import Data.List (filter)
+import Data.String (String)
+import Text.Read (Read, reads)
+
+-- | Lookup a constructor via a string
+readConstr :: DataType -> String -> Maybe Constr
+readConstr dt str =
+ case dataTypeRep dt of
+ AlgRep cons -> idx cons
+ IntRep -> mkReadCon (\i -> (mkPrimCon dt str (IntConstr i)))
+ FloatRep -> mkReadCon ffloat
+ CharRep -> mkReadCon (\c -> (mkPrimCon dt str (CharConstr c)))
+ NoRep -> Nothing
+ where
+
+ -- Read a value and build a constructor
+ mkReadCon :: Read t => (t -> Constr) -> Maybe Constr
+ mkReadCon f = case (reads str) of
+ [(t,"")] -> Just (f t)
+ _ -> Nothing
+
+ -- Traverse list of algebraic datatype constructors
+ idx :: [Constr] -> Maybe Constr
+ idx cons = case filter ((==) str . showConstr) cons of
+ [] -> Nothing
+ hd : _ -> Just hd
+
+ ffloat :: Double -> Constr
+ ffloat = mkPrimCon dt str . FloatConstr . toRational
=====================================
libraries/ghc-internal/src/GHC/Internal/Data/Data.hs
=====================================
@@ -61,6 +61,7 @@ module GHC.Internal.Data.Data (
mkIntType,
mkFloatType,
mkCharType,
+ mkPrimCon,
mkNoRepType,
-- ** Observers
dataTypeName,
@@ -94,7 +95,6 @@ module GHC.Internal.Data.Data (
constrIndex,
-- ** From strings to constructors and vice versa: all data types
showConstr,
- readConstr,
-- * Convenience functions: take type constructors apart
tyconUQname,
@@ -126,10 +126,8 @@ import GHC.Internal.Base (
import GHC.Internal.Err (errorWithoutStackTrace)
import GHC.Internal.List
import GHC.Internal.Num
-import GHC.Internal.Read
import GHC.Internal.Show
import GHC.Internal.Tuple (Solo (..))
-import GHC.Internal.Text.Read( reads )
import GHC.Internal.Types (
Bool(..), Char, Coercible, Float, Double, Type, type (~), type (~~),
)
@@ -688,32 +686,6 @@ showConstr :: Constr -> String
showConstr = constring
--- | Lookup a constructor via a string
-readConstr :: DataType -> String -> Maybe Constr
-readConstr dt str =
- case dataTypeRep dt of
- AlgRep cons -> idx cons
- IntRep -> mkReadCon (\i -> (mkPrimCon dt str (IntConstr i)))
- FloatRep -> mkReadCon ffloat
- CharRep -> mkReadCon (\c -> (mkPrimCon dt str (CharConstr c)))
- NoRep -> Nothing
- where
-
- -- Read a value and build a constructor
- mkReadCon :: Read t => (t -> Constr) -> Maybe Constr
- mkReadCon f = case (reads str) of
- [(t,"")] -> Just (f t)
- _ -> Nothing
-
- -- Traverse list of algebraic datatype constructors
- idx :: [Constr] -> Maybe Constr
- idx cons = case filter ((==) str . showConstr) cons of
- [] -> Nothing
- hd : _ -> Just hd
-
- ffloat :: Double -> Constr
- ffloat = mkPrimCon dt str . FloatConstr . toRational
-
------------------------------------------------------------------------------
--
-- Convenience functions: algebraic data types
=====================================
testsuite/tests/interface-stability/base-exports.stdout
=====================================
@@ -12545,13 +12545,12 @@ instance [safe] GHC.Internal.Read.Read GHC.Stats.RTSStats -- Defined in ‘GHC.S
instance GHC.Internal.Read.Read GHC.Internal.TypeNats.SomeNat -- Defined in ‘GHC.Internal.TypeNats’
instance GHC.Internal.Read.Read GHC.Internal.TypeLits.SomeChar -- Defined in ‘GHC.Internal.TypeLits’
instance GHC.Internal.Read.Read GHC.Internal.TypeLits.SomeSymbol -- Defined in ‘GHC.Internal.TypeLits’
-instance forall k a (b :: k). GHC.Internal.Real.Fractional a => GHC.Internal.Real.Fractional (GHC.Internal.Data.Functor.Const.Const a b) -- Defined in ‘GHC.Internal.Data.Functor.Const’
instance GHC.Internal.Read.Read GHC.Internal.IO.Handle.Types.BufferMode -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.IOMode.IOMode -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.Handle.Types.Newline -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.Handle.Types.NewlineMode -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.Device.SeekMode -- Defined in ‘System.IO’
-instance forall a k (b :: k). GHC.Internal.Real.Fractional a => GHC.Internal.Real.Fractional (GHC.Internal.Data.Functor.Const.Const a b) -- Defined in ‘GHC.Internal.Data.Functor.Const’
+instance forall k a (b :: k). GHC.Internal.Real.Fractional a => GHC.Internal.Real.Fractional (GHC.Internal.Data.Functor.Const.Const a b) -- Defined in ‘GHC.Internal.Data.Functor.Const’
instance forall a. GHC.Internal.Float.RealFloat a => GHC.Internal.Real.Fractional (Data.Complex.Complex a) -- Defined in ‘Data.Complex’
instance forall k (a :: k). Data.Fixed.HasResolution a => GHC.Internal.Real.Fractional (Data.Fixed.Fixed a) -- Defined in ‘Data.Fixed’
instance forall k1 k2 (f :: k1 -> *) (g :: k2 -> k1) (a :: k2). GHC.Internal.Real.Fractional (f (g a)) => GHC.Internal.Real.Fractional (Data.Functor.Compose.Compose f g a) -- Defined in ‘Data.Functor.Compose’
=====================================
testsuite/tests/interface-stability/base-exports.stdout-javascript-unknown-ghcjs
=====================================
@@ -12574,13 +12574,12 @@ instance [safe] GHC.Internal.Read.Read GHC.Stats.RTSStats -- Defined in ‘GHC.S
instance GHC.Internal.Read.Read GHC.Internal.TypeNats.SomeNat -- Defined in ‘GHC.Internal.TypeNats’
instance GHC.Internal.Read.Read GHC.Internal.TypeLits.SomeChar -- Defined in ‘GHC.Internal.TypeLits’
instance GHC.Internal.Read.Read GHC.Internal.TypeLits.SomeSymbol -- Defined in ‘GHC.Internal.TypeLits’
-instance forall k a (b :: k). GHC.Internal.Real.Fractional a => GHC.Internal.Real.Fractional (GHC.Internal.Data.Functor.Const.Const a b) -- Defined in ‘GHC.Internal.Data.Functor.Const’
instance GHC.Internal.Read.Read GHC.Internal.IO.Handle.Types.BufferMode -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.IOMode.IOMode -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.Handle.Types.Newline -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.Handle.Types.NewlineMode -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.Device.SeekMode -- Defined in ‘System.IO’
-instance forall a k (b :: k). GHC.Internal.Real.Fractional a => GHC.Internal.Real.Fractional (GHC.Internal.Data.Functor.Const.Const a b) -- Defined in ‘GHC.Internal.Data.Functor.Const’
+instance forall k a (b :: k). GHC.Internal.Real.Fractional a => GHC.Internal.Real.Fractional (GHC.Internal.Data.Functor.Const.Const a b) -- Defined in ‘GHC.Internal.Data.Functor.Const’
instance forall a. GHC.Internal.Float.RealFloat a => GHC.Internal.Real.Fractional (Data.Complex.Complex a) -- Defined in ‘Data.Complex’
instance forall k (a :: k). Data.Fixed.HasResolution a => GHC.Internal.Real.Fractional (Data.Fixed.Fixed a) -- Defined in ‘Data.Fixed’
instance forall k1 k2 (f :: k1 -> *) (g :: k2 -> k1) (a :: k2). GHC.Internal.Real.Fractional (f (g a)) => GHC.Internal.Real.Fractional (Data.Functor.Compose.Compose f g a) -- Defined in ‘Data.Functor.Compose’
=====================================
testsuite/tests/interface-stability/base-exports.stdout-mingw32
=====================================
@@ -12817,13 +12817,12 @@ instance [safe] GHC.Internal.Read.Read GHC.Stats.RTSStats -- Defined in ‘GHC.S
instance GHC.Internal.Read.Read GHC.Internal.TypeNats.SomeNat -- Defined in ‘GHC.Internal.TypeNats’
instance GHC.Internal.Read.Read GHC.Internal.TypeLits.SomeChar -- Defined in ‘GHC.Internal.TypeLits’
instance GHC.Internal.Read.Read GHC.Internal.TypeLits.SomeSymbol -- Defined in ‘GHC.Internal.TypeLits’
-instance forall k a (b :: k). GHC.Internal.Real.Fractional a => GHC.Internal.Real.Fractional (GHC.Internal.Data.Functor.Const.Const a b) -- Defined in ‘GHC.Internal.Data.Functor.Const’
instance GHC.Internal.Read.Read GHC.Internal.IO.Handle.Types.BufferMode -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.IOMode.IOMode -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.Handle.Types.Newline -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.Handle.Types.NewlineMode -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.Device.SeekMode -- Defined in ‘System.IO’
-instance forall a k (b :: k). GHC.Internal.Real.Fractional a => GHC.Internal.Real.Fractional (GHC.Internal.Data.Functor.Const.Const a b) -- Defined in ‘GHC.Internal.Data.Functor.Const’
+instance forall k a (b :: k). GHC.Internal.Real.Fractional a => GHC.Internal.Real.Fractional (GHC.Internal.Data.Functor.Const.Const a b) -- Defined in ‘GHC.Internal.Data.Functor.Const’
instance forall a. GHC.Internal.Float.RealFloat a => GHC.Internal.Real.Fractional (Data.Complex.Complex a) -- Defined in ‘Data.Complex’
instance forall k (a :: k). Data.Fixed.HasResolution a => GHC.Internal.Real.Fractional (Data.Fixed.Fixed a) -- Defined in ‘Data.Fixed’
instance forall k1 k2 (f :: k1 -> *) (g :: k2 -> k1) (a :: k2). GHC.Internal.Real.Fractional (f (g a)) => GHC.Internal.Real.Fractional (Data.Functor.Compose.Compose f g a) -- Defined in ‘Data.Functor.Compose’
=====================================
testsuite/tests/interface-stability/base-exports.stdout-ws-32
=====================================
@@ -12545,13 +12545,12 @@ instance [safe] GHC.Internal.Read.Read GHC.Stats.RTSStats -- Defined in ‘GHC.S
instance GHC.Internal.Read.Read GHC.Internal.TypeNats.SomeNat -- Defined in ‘GHC.Internal.TypeNats’
instance GHC.Internal.Read.Read GHC.Internal.TypeLits.SomeChar -- Defined in ‘GHC.Internal.TypeLits’
instance GHC.Internal.Read.Read GHC.Internal.TypeLits.SomeSymbol -- Defined in ‘GHC.Internal.TypeLits’
-instance forall k a (b :: k). GHC.Internal.Real.Fractional a => GHC.Internal.Real.Fractional (GHC.Internal.Data.Functor.Const.Const a b) -- Defined in ‘GHC.Internal.Data.Functor.Const’
instance GHC.Internal.Read.Read GHC.Internal.IO.Handle.Types.BufferMode -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.IOMode.IOMode -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.Handle.Types.Newline -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.Handle.Types.NewlineMode -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.Device.SeekMode -- Defined in ‘System.IO’
-instance forall a k (b :: k). GHC.Internal.Real.Fractional a => GHC.Internal.Real.Fractional (GHC.Internal.Data.Functor.Const.Const a b) -- Defined in ‘GHC.Internal.Data.Functor.Const’
+instance forall k a (b :: k). GHC.Internal.Real.Fractional a => GHC.Internal.Real.Fractional (GHC.Internal.Data.Functor.Const.Const a b) -- Defined in ‘GHC.Internal.Data.Functor.Const’
instance forall a. GHC.Internal.Float.RealFloat a => GHC.Internal.Real.Fractional (Data.Complex.Complex a) -- Defined in ‘Data.Complex’
instance forall k (a :: k). Data.Fixed.HasResolution a => GHC.Internal.Real.Fractional (Data.Fixed.Fixed a) -- Defined in ‘Data.Fixed’
instance forall k1 k2 (f :: k1 -> *) (g :: k2 -> k1) (a :: k2). GHC.Internal.Real.Fractional (f (g a)) => GHC.Internal.Real.Fractional (Data.Functor.Compose.Compose f g a) -- Defined in ‘Data.Functor.Compose’
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/5477c7f8b23b09e389ed29302b12461…
--
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/5477c7f8b23b09e389ed29302b12461…
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[Git][ghc/ghc][wip/jeltsch/text-read-uncovering] Move the implementation of `readConstr` into `base`
by Wolfgang Jeltsch (＠jeltsch) 08 Apr '26
by Wolfgang Jeltsch (＠jeltsch) 08 Apr '26
08 Apr '26
Wolfgang Jeltsch pushed to branch wip/jeltsch/text-read-uncovering at Glasgow Haskell Compiler / GHC
Commits:
c3c6efeb by Wolfgang Jeltsch at 2026-04-08T16:28:18+03:00
Move the implementation of `readConstr` into `base`
- - - - -
2 changed files:
- libraries/base/src/Data/Data.hs
- libraries/ghc-internal/src/GHC/Internal/Data/Data.hs
Changes:
=====================================
libraries/base/src/Data/Data.hs
=====================================
@@ -99,3 +99,38 @@ module Data.Data (
import GHC.Internal.Data.Data
import Data.Typeable
+
+import GHC.Real (toRational)
+import GHC.Float (Double)
+import Data.Eq ((==))
+import Data.Function ((.))
+import Data.Maybe (Maybe (Nothing, Just))
+import Data.List (filter)
+import Data.String (String)
+import Text.Read (Read, reads)
+
+-- | Lookup a constructor via a string
+readConstr :: DataType -> String -> Maybe Constr
+readConstr dt str =
+ case dataTypeRep dt of
+ AlgRep cons -> idx cons
+ IntRep -> mkReadCon (\i -> (mkPrimCon dt str (IntConstr i)))
+ FloatRep -> mkReadCon ffloat
+ CharRep -> mkReadCon (\c -> (mkPrimCon dt str (CharConstr c)))
+ NoRep -> Nothing
+ where
+
+ -- Read a value and build a constructor
+ mkReadCon :: Read t => (t -> Constr) -> Maybe Constr
+ mkReadCon f = case (reads str) of
+ [(t,"")] -> Just (f t)
+ _ -> Nothing
+
+ -- Traverse list of algebraic datatype constructors
+ idx :: [Constr] -> Maybe Constr
+ idx cons = case filter ((==) str . showConstr) cons of
+ [] -> Nothing
+ hd : _ -> Just hd
+
+ ffloat :: Double -> Constr
+ ffloat = mkPrimCon dt str . FloatConstr . toRational
=====================================
libraries/ghc-internal/src/GHC/Internal/Data/Data.hs
=====================================
@@ -61,6 +61,7 @@ module GHC.Internal.Data.Data (
mkIntType,
mkFloatType,
mkCharType,
+ mkPrimCon,
mkNoRepType,
-- ** Observers
dataTypeName,
@@ -94,7 +95,6 @@ module GHC.Internal.Data.Data (
constrIndex,
-- ** From strings to constructors and vice versa: all data types
showConstr,
- readConstr,
-- * Convenience functions: take type constructors apart
tyconUQname,
@@ -126,10 +126,8 @@ import GHC.Internal.Base (
import GHC.Internal.Err (errorWithoutStackTrace)
import GHC.Internal.List
import GHC.Internal.Num
-import GHC.Internal.Read
import GHC.Internal.Show
import GHC.Internal.Tuple (Solo (..))
-import GHC.Internal.Text.Read( reads )
import GHC.Internal.Types (
Bool(..), Char, Coercible, Float, Double, Type, type (~), type (~~),
)
@@ -688,32 +686,6 @@ showConstr :: Constr -> String
showConstr = constring
--- | Lookup a constructor via a string
-readConstr :: DataType -> String -> Maybe Constr
-readConstr dt str =
- case dataTypeRep dt of
- AlgRep cons -> idx cons
- IntRep -> mkReadCon (\i -> (mkPrimCon dt str (IntConstr i)))
- FloatRep -> mkReadCon ffloat
- CharRep -> mkReadCon (\c -> (mkPrimCon dt str (CharConstr c)))
- NoRep -> Nothing
- where
-
- -- Read a value and build a constructor
- mkReadCon :: Read t => (t -> Constr) -> Maybe Constr
- mkReadCon f = case (reads str) of
- [(t,"")] -> Just (f t)
- _ -> Nothing
-
- -- Traverse list of algebraic datatype constructors
- idx :: [Constr] -> Maybe Constr
- idx cons = case filter ((==) str . showConstr) cons of
- [] -> Nothing
- hd : _ -> Just hd
-
- ffloat :: Double -> Constr
- ffloat = mkPrimCon dt str . FloatConstr . toRational
-
------------------------------------------------------------------------------
--
-- Convenience functions: algebraic data types
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/c3c6efeb13ec864068bc5b5b60a9d37…
--
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/c3c6efeb13ec864068bc5b5b60a9d37…
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[Git][ghc/ghc][wip/jeltsch/text-read-uncovering] Move the implementation of `readConstr` into `base`
by Wolfgang Jeltsch (＠jeltsch) 08 Apr '26
by Wolfgang Jeltsch (＠jeltsch) 08 Apr '26
08 Apr '26
Wolfgang Jeltsch pushed to branch wip/jeltsch/text-read-uncovering at Glasgow Haskell Compiler / GHC
Commits:
d70ced06 by Wolfgang Jeltsch at 2026-04-08T16:46:51+03:00
Move the implementation of `readConstr` into `base`
- - - - -
6 changed files:
- libraries/base/src/Data/Data.hs
- libraries/ghc-internal/src/GHC/Internal/Data/Data.hs
- 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
Changes:
=====================================
libraries/base/src/Data/Data.hs
=====================================
@@ -99,3 +99,38 @@ module Data.Data (
import GHC.Internal.Data.Data
import Data.Typeable
+
+import GHC.Real (toRational)
+import GHC.Float (Double)
+import Data.Eq ((==))
+import Data.Function ((.))
+import Data.Maybe (Maybe (Nothing, Just))
+import Data.List (filter)
+import Data.String (String)
+import Text.Read (Read, reads)
+
+-- | Lookup a constructor via a string
+readConstr :: DataType -> String -> Maybe Constr
+readConstr dt str =
+ case dataTypeRep dt of
+ AlgRep cons -> idx cons
+ IntRep -> mkReadCon (\i -> (mkPrimCon dt str (IntConstr i)))
+ FloatRep -> mkReadCon ffloat
+ CharRep -> mkReadCon (\c -> (mkPrimCon dt str (CharConstr c)))
+ NoRep -> Nothing
+ where
+
+ -- Read a value and build a constructor
+ mkReadCon :: Read t => (t -> Constr) -> Maybe Constr
+ mkReadCon f = case (reads str) of
+ [(t,"")] -> Just (f t)
+ _ -> Nothing
+
+ -- Traverse list of algebraic datatype constructors
+ idx :: [Constr] -> Maybe Constr
+ idx cons = case filter ((==) str . showConstr) cons of
+ [] -> Nothing
+ hd : _ -> Just hd
+
+ ffloat :: Double -> Constr
+ ffloat = mkPrimCon dt str . FloatConstr . toRational
=====================================
libraries/ghc-internal/src/GHC/Internal/Data/Data.hs
=====================================
@@ -61,6 +61,7 @@ module GHC.Internal.Data.Data (
mkIntType,
mkFloatType,
mkCharType,
+ mkPrimCon,
mkNoRepType,
-- ** Observers
dataTypeName,
@@ -94,7 +95,6 @@ module GHC.Internal.Data.Data (
constrIndex,
-- ** From strings to constructors and vice versa: all data types
showConstr,
- readConstr,
-- * Convenience functions: take type constructors apart
tyconUQname,
@@ -126,10 +126,8 @@ import GHC.Internal.Base (
import GHC.Internal.Err (errorWithoutStackTrace)
import GHC.Internal.List
import GHC.Internal.Num
-import GHC.Internal.Read
import GHC.Internal.Show
import GHC.Internal.Tuple (Solo (..))
-import GHC.Internal.Text.Read( reads )
import GHC.Internal.Types (
Bool(..), Char, Coercible, Float, Double, Type, type (~), type (~~),
)
@@ -688,32 +686,6 @@ showConstr :: Constr -> String
showConstr = constring
--- | Lookup a constructor via a string
-readConstr :: DataType -> String -> Maybe Constr
-readConstr dt str =
- case dataTypeRep dt of
- AlgRep cons -> idx cons
- IntRep -> mkReadCon (\i -> (mkPrimCon dt str (IntConstr i)))
- FloatRep -> mkReadCon ffloat
- CharRep -> mkReadCon (\c -> (mkPrimCon dt str (CharConstr c)))
- NoRep -> Nothing
- where
-
- -- Read a value and build a constructor
- mkReadCon :: Read t => (t -> Constr) -> Maybe Constr
- mkReadCon f = case (reads str) of
- [(t,"")] -> Just (f t)
- _ -> Nothing
-
- -- Traverse list of algebraic datatype constructors
- idx :: [Constr] -> Maybe Constr
- idx cons = case filter ((==) str . showConstr) cons of
- [] -> Nothing
- hd : _ -> Just hd
-
- ffloat :: Double -> Constr
- ffloat = mkPrimCon dt str . FloatConstr . toRational
-
------------------------------------------------------------------------------
--
-- Convenience functions: algebraic data types
=====================================
testsuite/tests/interface-stability/base-exports.stdout
=====================================
@@ -12545,13 +12545,12 @@ instance [safe] GHC.Internal.Read.Read GHC.Stats.RTSStats -- Defined in ‘GHC.S
instance GHC.Internal.Read.Read GHC.Internal.TypeNats.SomeNat -- Defined in ‘GHC.Internal.TypeNats’
instance GHC.Internal.Read.Read GHC.Internal.TypeLits.SomeChar -- Defined in ‘GHC.Internal.TypeLits’
instance GHC.Internal.Read.Read GHC.Internal.TypeLits.SomeSymbol -- Defined in ‘GHC.Internal.TypeLits’
-instance forall k a (b :: k). GHC.Internal.Real.Fractional a => GHC.Internal.Real.Fractional (GHC.Internal.Data.Functor.Const.Const a b) -- Defined in ‘GHC.Internal.Data.Functor.Const’
instance GHC.Internal.Read.Read GHC.Internal.IO.Handle.Types.BufferMode -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.IOMode.IOMode -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.Handle.Types.Newline -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.Handle.Types.NewlineMode -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.Device.SeekMode -- Defined in ‘System.IO’
-instance forall a k (b :: k). GHC.Internal.Real.Fractional a => GHC.Internal.Real.Fractional (GHC.Internal.Data.Functor.Const.Const a b) -- Defined in ‘GHC.Internal.Data.Functor.Const’
+instance forall k a (b :: k). GHC.Internal.Real.Fractional a => GHC.Internal.Real.Fractional (GHC.Internal.Data.Functor.Const.Const a b) -- Defined in ‘GHC.Internal.Data.Functor.Const’
instance forall a. GHC.Internal.Float.RealFloat a => GHC.Internal.Real.Fractional (Data.Complex.Complex a) -- Defined in ‘Data.Complex’
instance forall k (a :: k). Data.Fixed.HasResolution a => GHC.Internal.Real.Fractional (Data.Fixed.Fixed a) -- Defined in ‘Data.Fixed’
instance forall k1 k2 (f :: k1 -> *) (g :: k2 -> k1) (a :: k2). GHC.Internal.Real.Fractional (f (g a)) => GHC.Internal.Real.Fractional (Data.Functor.Compose.Compose f g a) -- Defined in ‘Data.Functor.Compose’
=====================================
testsuite/tests/interface-stability/base-exports.stdout-javascript-unknown-ghcjs
=====================================
@@ -12574,13 +12574,12 @@ instance [safe] GHC.Internal.Read.Read GHC.Stats.RTSStats -- Defined in ‘GHC.S
instance GHC.Internal.Read.Read GHC.Internal.TypeNats.SomeNat -- Defined in ‘GHC.Internal.TypeNats’
instance GHC.Internal.Read.Read GHC.Internal.TypeLits.SomeChar -- Defined in ‘GHC.Internal.TypeLits’
instance GHC.Internal.Read.Read GHC.Internal.TypeLits.SomeSymbol -- Defined in ‘GHC.Internal.TypeLits’
-instance forall k a (b :: k). GHC.Internal.Real.Fractional a => GHC.Internal.Real.Fractional (GHC.Internal.Data.Functor.Const.Const a b) -- Defined in ‘GHC.Internal.Data.Functor.Const’
instance GHC.Internal.Read.Read GHC.Internal.IO.Handle.Types.BufferMode -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.IOMode.IOMode -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.Handle.Types.Newline -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.Handle.Types.NewlineMode -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.Device.SeekMode -- Defined in ‘System.IO’
-instance forall a k (b :: k). GHC.Internal.Real.Fractional a => GHC.Internal.Real.Fractional (GHC.Internal.Data.Functor.Const.Const a b) -- Defined in ‘GHC.Internal.Data.Functor.Const’
+instance forall k a (b :: k). GHC.Internal.Real.Fractional a => GHC.Internal.Real.Fractional (GHC.Internal.Data.Functor.Const.Const a b) -- Defined in ‘GHC.Internal.Data.Functor.Const’
instance forall a. GHC.Internal.Float.RealFloat a => GHC.Internal.Real.Fractional (Data.Complex.Complex a) -- Defined in ‘Data.Complex’
instance forall k (a :: k). Data.Fixed.HasResolution a => GHC.Internal.Real.Fractional (Data.Fixed.Fixed a) -- Defined in ‘Data.Fixed’
instance forall k1 k2 (f :: k1 -> *) (g :: k2 -> k1) (a :: k2). GHC.Internal.Real.Fractional (f (g a)) => GHC.Internal.Real.Fractional (Data.Functor.Compose.Compose f g a) -- Defined in ‘Data.Functor.Compose’
=====================================
testsuite/tests/interface-stability/base-exports.stdout-mingw32
=====================================
@@ -12817,13 +12817,12 @@ instance [safe] GHC.Internal.Read.Read GHC.Stats.RTSStats -- Defined in ‘GHC.S
instance GHC.Internal.Read.Read GHC.Internal.TypeNats.SomeNat -- Defined in ‘GHC.Internal.TypeNats’
instance GHC.Internal.Read.Read GHC.Internal.TypeLits.SomeChar -- Defined in ‘GHC.Internal.TypeLits’
instance GHC.Internal.Read.Read GHC.Internal.TypeLits.SomeSymbol -- Defined in ‘GHC.Internal.TypeLits’
-instance forall k a (b :: k). GHC.Internal.Real.Fractional a => GHC.Internal.Real.Fractional (GHC.Internal.Data.Functor.Const.Const a b) -- Defined in ‘GHC.Internal.Data.Functor.Const’
instance GHC.Internal.Read.Read GHC.Internal.IO.Handle.Types.BufferMode -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.IOMode.IOMode -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.Handle.Types.Newline -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.Handle.Types.NewlineMode -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.Device.SeekMode -- Defined in ‘System.IO’
-instance forall a k (b :: k). GHC.Internal.Real.Fractional a => GHC.Internal.Real.Fractional (GHC.Internal.Data.Functor.Const.Const a b) -- Defined in ‘GHC.Internal.Data.Functor.Const’
+instance forall k a (b :: k). GHC.Internal.Real.Fractional a => GHC.Internal.Real.Fractional (GHC.Internal.Data.Functor.Const.Const a b) -- Defined in ‘GHC.Internal.Data.Functor.Const’
instance forall a. GHC.Internal.Float.RealFloat a => GHC.Internal.Real.Fractional (Data.Complex.Complex a) -- Defined in ‘Data.Complex’
instance forall k (a :: k). Data.Fixed.HasResolution a => GHC.Internal.Real.Fractional (Data.Fixed.Fixed a) -- Defined in ‘Data.Fixed’
instance forall k1 k2 (f :: k1 -> *) (g :: k2 -> k1) (a :: k2). GHC.Internal.Real.Fractional (f (g a)) => GHC.Internal.Real.Fractional (Data.Functor.Compose.Compose f g a) -- Defined in ‘Data.Functor.Compose’
=====================================
testsuite/tests/interface-stability/base-exports.stdout-ws-32
=====================================
@@ -12545,13 +12545,12 @@ instance [safe] GHC.Internal.Read.Read GHC.Stats.RTSStats -- Defined in ‘GHC.S
instance GHC.Internal.Read.Read GHC.Internal.TypeNats.SomeNat -- Defined in ‘GHC.Internal.TypeNats’
instance GHC.Internal.Read.Read GHC.Internal.TypeLits.SomeChar -- Defined in ‘GHC.Internal.TypeLits’
instance GHC.Internal.Read.Read GHC.Internal.TypeLits.SomeSymbol -- Defined in ‘GHC.Internal.TypeLits’
-instance forall k a (b :: k). GHC.Internal.Real.Fractional a => GHC.Internal.Real.Fractional (GHC.Internal.Data.Functor.Const.Const a b) -- Defined in ‘GHC.Internal.Data.Functor.Const’
instance GHC.Internal.Read.Read GHC.Internal.IO.Handle.Types.BufferMode -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.IOMode.IOMode -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.Handle.Types.Newline -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.Handle.Types.NewlineMode -- Defined in ‘System.IO’
instance GHC.Internal.Read.Read GHC.Internal.IO.Device.SeekMode -- Defined in ‘System.IO’
-instance forall a k (b :: k). GHC.Internal.Real.Fractional a => GHC.Internal.Real.Fractional (GHC.Internal.Data.Functor.Const.Const a b) -- Defined in ‘GHC.Internal.Data.Functor.Const’
+instance forall k a (b :: k). GHC.Internal.Real.Fractional a => GHC.Internal.Real.Fractional (GHC.Internal.Data.Functor.Const.Const a b) -- Defined in ‘GHC.Internal.Data.Functor.Const’
instance forall a. GHC.Internal.Float.RealFloat a => GHC.Internal.Real.Fractional (Data.Complex.Complex a) -- Defined in ‘Data.Complex’
instance forall k (a :: k). Data.Fixed.HasResolution a => GHC.Internal.Real.Fractional (Data.Fixed.Fixed a) -- Defined in ‘Data.Fixed’
instance forall k1 k2 (f :: k1 -> *) (g :: k2 -> k1) (a :: k2). GHC.Internal.Real.Fractional (f (g a)) => GHC.Internal.Real.Fractional (Data.Functor.Compose.Compose f g a) -- Defined in ‘Data.Functor.Compose’
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/d70ced0611c212293c28738f720f257…
--
View it on GitLab: https://gitlab.haskell.org/ghc/ghc/-/commit/d70ced0611c212293c28738f720f257…
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