David Eichmann pushed to branch wip/27162/remove-hadrian-so-symlinks at Glasgow Haskell Compiler / GHC

Commits:

• 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@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@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@openai.com>
  

• 4a122bb6
  by Phil Hazelden at 2026-04-08T20:49:42-04:00

  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-modifiers.rst
  

• 07267f79
  by Zubin Duggal at 2026-04-08T20:50:25-04:00

  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
  

• 0a83b95b
  by ARATA Mizuki at 2026-04-08T20:51:18-04:00

  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@gmail.com>
  

• e841931c
  by Teo Camarasu at 2026-04-08T20:52:00-04:00

  doc: improve eventlog-flush-interval flag documentation
  
  We mention the performance cost and how this flag can be turned off.
  
  Resolves #27056
  

• e332db25
  by Teo Camarasu at 2026-04-08T20:52:01-04:00

  docs/user_guide: fix typo
  

• 5b82080a
  by Simon Jakobi at 2026-04-08T20:52:44-04:00

  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.
  

• b7a084cc
  by Simon Jakobi at 2026-04-08T20:53:27-04:00

  Documentation fixes for demand signature notation
  
  Fixes #27115.
  

• 59391132
  by Simon Jakobi at 2026-04-08T20:54:08-04:00

  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.
  

• da7e82f4
  by Cheng Shao at 2026-04-08T20:54:49-04:00

  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.
  

• b135a87d
  by Zubin Duggal at 2026-04-09T19:36:50+05:30

  Bump directory submodule to 1.3.11.0 (unreleased)
  

• 3a291d07
  by Zubin Duggal at 2026-04-09T19:36:50+05:30

  Bump file-io submodule to 0.2.0
  

• e0ab606d
  by Zubin Duggal at 2026-04-10T18:40:20+05:30

  Release notes for GHC 10.0
  

• e08b9b34
  by Zubin Duggal at 2026-04-10T18:40:20+05:30

  Bump ghc-prim version to 0.14.0
  

• a92aac6e
  by Zubin Duggal at 2026-04-10T18:40:20+05:30

  Bump template-haskell to 2.25.0.0; update submodule exceptions for TH 2.25
  

• f254d9e8
  by Zubin Duggal at 2026-04-10T18:40:20+05:30

  Bump GHC version to 10.0
  

• 6ce0368a
  by Zubin Duggal at 2026-04-10T18:40:28+05:30

  Bump base to 4.23.0.0; update submodules for base 4.24 upper bound
  

• 702fb8a5
  by Zubin Duggal at 2026-04-10T18:40:28+05:30

  Bump GHC version to 10.1; update submodules template-haskell-lift and template-haskell-quasiquoter for ghc-internal 10.200
  

• 75df1ca4
  by Zubin Duggal at 2026-04-10T18:40:28+05:30

  Use changelog.d for release notes (#26002)
  
  GHC now uses a fragment-based changelog workflow using a custom script adapted from https://codeberg.org/fgaz/changelog-d.
  
  Contributors add a file in changelog.d/ for each user-facing change.
  At release time, these are assembled into release notes for sphinx (in RST) format, using
  the tool.
  
  New hadrian `changelog` target to generate changelogs
  
  CI job to validate changelog entries for MRs unless skipped with ~"no-changelog" label
  
  Teach sphinx about ghc-mr: extlink to link to MRs
  
  Remove `ghc-package-list` from sphinx, and implement it in changelog-d instead (Fixes #26476).
  
  (cherry picked from commit 989c07249978f418dfde1353abfad453f024d61a)
  

• 585d7450
  by Luite Stegeman at 2026-04-11T02:17:13-04:00

  tc: discard warnings in tcUserStmt Plan C
  
  We typecheck let_stmt twice, but we don't want the warnings twice!
  
  see #26233
  

• 2df604e9
  by Sylvain Henry at 2026-04-11T02:19:30-04:00

  Introduce TargetInt to represent target's Int (#15973)
  
  GHC was using host 'Int' in several places to represent values that
  live in the target machine's 'Int' type.  This is silently wrong when
  cross-compiling from a 32-bit host to a 64-bit target: the host Int
  is 32 bits while the target Int is 64 bits.
  
  See Note [TargetInt] in GHC.Platform.
  
  Also used the opportunity to make DynTag = Word8.
  
  Fixes #15973
  
  Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
  

• d419e972
  by Luite Stegeman at 2026-04-13T15:16:04-04:00

  Suppress desugaring warnings in the pattern match checker
  
  Avoid duplicating warnings from the actual desugaring pass.
  
  fixes #25996
  

• c5b80dd0
  by Phil de Joux at 2026-04-13T15:16:51-04:00

  Typo ~/ghc/arch-os-version/environments
  

• 71462fff
  by Luite Stegeman at 2026-04-13T15:17:38-04:00

  add changelog entry for #26233
  

• d1ddfd4b
  by Rodrigo Mesquita at 2026-04-14T18:41:12-04:00

  Add test for #25636
  
  The existing test behaviour of "T23146_liftedeq" changed because the
  simplifier now does a bit more inlining. We can restore the previous bad
  behavior by using an OPAQUE pragma.
  
  This test doubles as a test for #25636 when run in ghci, so we add it as
  such.
  

• b9df40ee
  by Rodrigo Mesquita at 2026-04-14T18:41:12-04:00

  refactor: protoBCOName is always a Name
  
  Simplifies the code by removing the unnecessary type argument to
  ProtoBCO which was always 'Name'
  

• 5c2a179e
  by Rodrigo Mesquita at 2026-04-14T18:41:12-04:00

  Allocate static constructors for bytecode
  
  This commit adds support for static constructors when compiling and
  linking ByteCode objects.
  
  Top-level StgRhsCon get lowered to ProtoStaticCons rather than to
  ProtoBCOs. A ProtoStaticCon gets allocated directly as a data con
  application on the heap (using the new primop newConApp#).
  
  Previously, we would allocate a ProtoBCO which, when evaluated, would
  PACK and return the constructor.
  A few more details are given in Note [Static constructors in Bytecode].
  
  Secondly, this commit also fixes issue #25636 which was caused by
  linking *unlifted* constructors in BCO instructions as
      - (1) a thunk indexing the array of BCOs in a module
      - (2) which evaluated to a BCO which still had to be evaluated to
        return the unlifted constructor proper.
  
  The (2) issue has been resolved by allocating the static constructors
  directly. The (1) issue can be resolved by ensuring that we allocate all
  unlifted top-level constructors eagerly, and leave the knot-tying for
  the lifted BCOs and top-level constructors only.
  
  The top-level unlifted constructors are never mutually recursive, so we
  can allocate them all in one go as long as we do it in topological
  order. Lifted fields of unlifted constructors can still be filled by the
  knot-tied lifted variables since in those fields it is fine to keep
  those thunks. See Note [Tying the knot in createBCOs] for more details.
  
  Fixes #25636
  
  -------------------------
  Metric Decrease:
      LinkableUsage01
  -------------------------
  

• cde47053
  by Rodrigo Mesquita at 2026-04-14T18:41:12-04:00

  Revert "StgToByteCode: Assert that PUSH_G'd values are lifted"
  
  This reverts commit ec26c54d818e0cd328276196930313f66b780905.
  
  Ever since f7a22c0f4e9ae0dc767115d4c53fddbd8372b777, we now do support
  and will link top-level unlifted constructors into evaluated and
  properly tagged values which we can reference with PUSH_G.
  
  This assertion is no longer true and triggered a failure in T25636
  

• c7a7e5b8
  by Rodrigo Mesquita at 2026-04-14T18:41:12-04:00

  refactor: Tag more remote Ptrs as RemotePtr
  
  Pure refactor which improves the API of
  
  - GHC.ByteCode.Linker
  - GHC.Runtime.Interpreter
  - GHC.Runtime.Interpreter.Types.SymbolCache
  
  by using `RemotePtr` for more functions which used to return `Ptr`s that
  could potentially be in a foreign process. E.g. `lookupIE`,
  `lookupStaticPtr`, etc...
  

• fc59494c
  by Rodrigo Mesquita at 2026-04-14T18:41:12-04:00

  Add float# and subword tests for #25636
  
  These tests cover that static constructors in bytecode work correctly
  for Float# and subword values (Word8#, Word16#)
  

• 477f521b
  by Rodrigo Mesquita at 2026-04-14T18:41:12-04:00

  test: Validate topoSort logic in createBCOs
  
  This test validates that the topological sorting and ordering of the
  unlifted constructors and lifted constructors in `createBCOs` is
  correct.
  
  See `Note [Tying the knot in createBCOs]` for why tying the knot for the
  created BCOs is slightly difficult and why the topological sorting is
  necessary.
  
  This test fails when `let topoSortedObjs = topSortObjs objs` is
  substituted by `let topoSortedObjs = zip [0..] objs`, thus witnessing
  the toposort logic is correct and necessary.
  
  The test calls the ghci `createBCOs` directly because it is currently
  impossible to construct in Source Haskell a situation where a top-level
  static unlifted constructor depends on another (we don't have top-level
  unlifted constructors except for nullary constructors like `Leaf ::
  (UTree :: UnliftedType)`).
  
  This is another test for fix for #25636
  

• 2d9c30be
  by Simon Jakobi at 2026-04-14T18:42:00-04:00

  Improve tests for `elem`
  
  ...in order to simplify the work on #27096.
  
  * Improve T17752 by including the Core output in golden files, checking
    both -O1 and -O2.
  * Add tests for fusion and no-fusion cases.
  
  Fixes #27101.
  

• 2dadf3b0
  by sheaf at 2026-04-16T13:28:39-04:00

  Simplify mkTick
  
  This commit simplifies 'GHC.Core.Utils.mkTick', removing the
  accumulating parameter 'rest' which was suspiciously treating a bunch of
  different ticks as a group, and moving the group as a whole around the
  AST, ignoring that the ticks in the group might have different placement
  properties.
  
  The most important change is that we revert the logic (added in 85b0aae2)
  that allowed ticks to be placed around coercions, which caused serious
  issues (e.g. #27121). It was just a mistake, as it doesn't make sense
  to put a tick around a coercion.
  
  Also adds Note [Pushing SCCs inwards] which clarifies the logic for
  pushing SCCs into lambdas, constructor applications, and dropping SCCs
  around non-function variables (in particular the treatment of splittable
  ticks).
  
  A few other changes are also implemented:
  
    - simplify 'can_split' predicate (no functional change)
    - combine profiling ticks into one when possible
  
  Fixes #26878, #26941 and #27121
  
  Co-authored-by: simonpj <simon.peytonjones@gmail.com>
  

• a0d6f1f4
  by Simon Jakobi at 2026-04-16T13:29:28-04:00

  Add regression test for #9074
  
  Closes #9074.
  

• d178ee89
  by Sylvain Henry at 2026-04-16T13:30:25-04:00

  Add changelog for #15973
  

• e8a196c6
  by sheaf at 2026-04-16T13:31:19-04:00

  Deal with 'noSpec' in 'coreExprToPmLit'
  
  This commit makes two separate changes relating to
  'GHC.HsToCore.Pmc.Solver.Types.coreExprAsPmLit':
  
    1. Commit 7124e4ad mistakenly marked deferred errors as non-canonical,
       which led to the introduction of 'nospec' wrappers in the
       generated Core. This reverts that accident by declaring deferred
       errors as being canonical, avoiding spurious 'nospec' wrapping.
    2. Look through magic identity-like Ids such as 'nospec', 'inline' and
       'lazy' in 'coreExprAsPmLit', just like Core Prep does.
       There might genuinely be incoherent evidence, but that shouldn't
       obstruct the pattern match checker. See test T27124a.
  
  Fixes #25926 #27124
  
  -------------------------
  Metric Decrease:
      T3294
  -------------------------
  

• 8cb99552
  by Sylvain Henry at 2026-04-16T19:22:43-04:00

  hadrian: warn when package index is missing (#16484)
  
  Since cabal-install 3.0 we can query the path of remote-repo-cache and
  check if hackage package index is present.
  
  Fixes #16484
  

• d6ce7477
  by Richard Eisenberg at 2026-04-16T19:23:25-04:00

  Teach hadrian to --skip-test.
  
  Fixes #27188.
  
  This adds the --skip-test flag to `hadrian build`, as documented in the
  patch.
  

• 7666f4a9
  by Fendor at 2026-04-17T22:29:51-04:00

  Migrate `ghc-pkg` to use `OsPath` and `file-io`
  
  `ghc-pkg` should use UNC paths as much as possible to avoid MAX_PATH
  issues on windows.
  
  `file-io` uses UNC Paths by default on windows, ensuring we use the
  correct APIs and that we finally are no longer plagued by MAX_PATH
  issues in CI and private machines.
  
  On top of it, the higher correctness of `OsPath` is appreciated in this
  small codebase. Also, we improve memory usage very slightly, due to the
  more efficient memory representation of `OsPath` over `FilePath`
  
  Adds `ghc-pkg` regression test for MAX_PATH on windows
  
  Make sure `ghc-pkg` behaves as expected when long paths (> 255) are
  involved on windows.
  
  Let's generate a testcase where we can actually observe that `ghc-pkg`
  behaves as epxected.
  
  See the documentation for windows on Maximum Path Length Limitation:
  
  * `https://learn.microsoft.com/en-us/windows/win32/fileio/maximum-file-path-limitation`
  
  Adds changelog entry for long path support in ghc-pkg.
  

• 78434e8c
  by Simon Peyton Jones at 2026-04-17T22:30:38-04:00

  Kill off the substitution in Lint
  
  Now that we have invariant (NoTypeShadowing) we no longer
  need Lint to carry an ambient substitution.  This makes it
  simpler and faster.  A really worthwhile refactor.
  
  There are some knock-on effects
  
  * Linting join points after worker/wrapper.  See
    Note [Join points and beta redexes]
  
  * Running a type substitution after the desugarer.
    See Note [Substituting type-lets] in
    the new module GHC.Core.SubstTypeLets
  
  Implements #27078
  
  Most perf tests don't use Lint so we won't see a perf incresae.
  But T1969, which uses -O0 and Lint, gets 1.3% worse because it has
  to run the SubstTypeLets pass which is a somewhat expensive no-op
  
  Overall though compile-time allocations are down 0.1%.
  
  Metric Increase:
      T1969
  

• 86ca6c2c
  by mangoiv at 2026-04-17T22:31:22-04:00

  testsuite: inline elemCoreTest
  
  Some weird (probably python scoping) rule caused elemCoreTest, a regex
  being out of scope on ubuntu, presumably because of a newer python version.
  This patch just inlines the regex, which fixes the issue.
  
  Fixes #27193
  

• 72d6dc74
  by aparker at 2026-04-20T20:15:44-04:00

  NCG: Implement constant folding for vector simd ops (Issue #25030)
  

• b9cab907
  by sheaf at 2026-04-20T20:15:44-04:00

  Mark some SIMD tests as broken on i386 optllvm
  
  As seen in #25498, several SIMD tests are broken on i386 in the optllvm
  way. This commit marks them as "expect_broken".
  

• 76528cc3
  by Wolfgang Jeltsch at 2026-04-20T20:16:25-04:00

  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 Decrease:
      LinkableUsage01
      T3294
  Metric Increase:
      T12227
      T12707
      T5642
  

• 04d143c0
  by Luite Stegeman at 2026-04-21T14:05:33-04:00

  rts: add a few missing i386 relocations in the rts linker
  

• 014087e7
  by Luite Stegeman at 2026-04-21T14:05:34-04:00

  CodeOutput: Fix finalizers on multiple platforms
  
   - ELF platforms: emit .fini_array section
   - wasm32/Darwin: emit initializer with __cxa_atexit call
   - Windows: use -Wl,--whole-archive to prevent dropping finalizer symbols
   - rts linker: fix crash/assertion failure unloading objects with finalizers
  
  fixes #27072
  

• 915bba6f
  by Simon Jakobi at 2026-04-21T14:06:16-04:00

  Add regression test for #10531
  
  Closes #10531.
  

• 86a646a6
  by Andreas Klebinger at 2026-04-22T13:00:05-04:00

  Revert use of generic instances for compiler time perf reasons.
  
  Revert "Derive Semigroup/Monoid for instances believed could be derived in #25871"
  
  This reverts commit 11a04cbb221cc404fe00d65d7c951558ede4caa9.
  
  Revert "add Ghc.Data.Pair deriving"
  
  This reverts commit 15d9ce449e1be8c01b89fd39bdf1e700ea7d1dce.
  

• bc9ee1cf
  by Wen Kokke at 2026-04-22T13:00:51-04:00

  hadrian: Fix docs to remove static flavour
  
  In 638f6548, the static flavour was turned into into the fully_static
  flavour transformer. However, this commit did not update flavours.md.
  

• cc9cc6d5
  by Cheng Shao at 2026-04-23T09:40:46+00:00

  configure: bump LlvmMaxVersion to 23
  
  This patch bumps `LlvmMaxVersion` to 23 to support LLVM 22.x releases.
  

• 2ea7ef8e
  by Cheng Shao at 2026-04-23T09:46:26+00:00

  changelog: add llvm 22.x support
  

• 5574ee10
  by Cheng Shao at 2026-04-24T08:24:30-04:00

  compiler: avoid unused temporary `appendFS` operands
  
  This patch fixes unused temporary `appendFS` operands in the codebase
  that are retained in the `FastString` table after concatenation.
  Rewrite rules are added so that if an operand is
  `fsLit`/`mkFastString`, the `appendFS` application is rewritten to
  append the `ShortByteString` operands first. The patch also fixes
  `sconcat` behavior to align with `mconcat` for the same reason. Fixes #27205.
  

• 4ed78760
  by mangoiv at 2026-04-24T08:25:13-04:00

  contributing: adjust MR template to be less verbose
  
  - MR template only shows text that is relevant for submissiong
  - MR template was rewritten so it's readable from a user's and reviewer's
    perspective
  
  Resolves #27165
  
  Co-Authored-By: @sheaf
  

• 87db83e2
  by Cheng Shao at 2026-04-24T14:37:21-04:00

  ci: bump freebsd boot ghc to 9.10.3
  
  This commit bumps freebsd boot ghc to 9.10.3 to align with other
  platforms and prevent outdated boot libs in boot ghc to block the
  freebsd job.
  

• 17e3a0b7
  by Cheng Shao at 2026-04-24T14:37:21-04:00

  compiler: improve Binary instance of Array
  
  This patch improves the `Binary` instance of `Array`:
  
  - We no longer allocate intermediate lists. When serializing an
    `Array`, we iterate over the elements directly; when deserializing
    it, we allocate the result `Array` and fill it in a loop.
  - Now we only serialize the array bounds tuple; the length field is
    not needed.
  
  Closes #27109.
  

• 2d30f7d3
  by sheaf at 2026-04-24T14:38:23-04:00

  Vendor mini-QuickCheck for testsuite
  
  This commit extracts the vendored QuickCheck implementation from the
  foundation testsuite to make it more broadly available in the GHC
  testsuite, and makes use of it in the simd006 test (which also used
  a vendored QuickCheck implementation).
  
  On the way, we update the linear congruential generator to avoid the
  shortcoming of only generating 31 bit large numbers.
  
  Fixes #25990 and #25969.
  

• 1350271b
  by sheaf at 2026-04-27T09:32:53-04:00

  Ensure TcM plugins are only initialised once
  
  This commit ensures we keep TcM plugins (typechecker plugins,
  defaulting plugins and hole fit plugins) running all the way through
  desugaring, instead of stopping them at the end of typechecking.
  
  To do this, the "stop" actions of TcPlugin and DefaultingPlugin are
  split into two: one for the "post-typecheck" action, and one for the
  final shutdown action (after desugaring).
  
  This allows the plugins to be invoked by the pattern match checker
  (during desugaring) without having to be repeatedly re-initialised and
  stopped, fixing #26839.
  
  In the process, this commit modifies 'initTc' and 'initTcInteractive',
  adding an extra argument that describes whether to start/stop the 'TcM'
  plugins.
  
  See Note [Stop TcM plugins after desugaring] for an overview.
  

• 42549222
  by sheaf at 2026-04-27T09:33:50-04:00

  Hadrian: add --keep-response-files
  
  This commit adds a Hadrian flag that allows response files to be
  retained. This is useful for debugging a failing Hadrian command line.
  

• 40564e8d
  by sheaf at 2026-04-27T09:34:46-04:00

  hadrian/build-cabal.bat: fix build on Windows
  
  Commit 8cb99552f6 introduced a warning for a missing package index.
  However, the logic was faulty on Windows: the piping was broken, and
  "remote-repo-cache:" was being interpreted as a (malformed) drive letter,
  leading to the error:
  
    The filename, directory name, or volume label syntax is incorrect.
  
  This commit fixes that by using a temporary file instead of piping.
  

• 14bc71e4
  by Sven Tennie at 2026-04-28T13:22:47-04:00

  ghc: Distinguish between having an interpreter and having an internal one
  
  Actually, these are related but different things:
  
  - ghc can run an interpreter (either internal or external)
  - ghc is compiled with an internal interpreter
  
  Splitting the logic solves compiler warnings and expresses the intent
  better.
  

• df691563
  by Vladislav Zavialov at 2026-04-28T13:23:29-04:00

  Refactor HsWildCardTy to use HoleKind (#27111)
  
  The payload of this patch is that the extension fields of HsWildCardTy
  and HsHole now match:
  
  	type instance XWildCardTy Ghc{Ps,Rn} = HoleKind
  	type instance XHole       Ghc{Ps,Rn} = HoleKind
  
  This is progress towards unification of HsExpr and HsType.
  Test case: T25121_status
  
  In addition to that, exact-printing of infix holes is fixed.
  Test case: PprInfixHole
  

• f3485446
  by fendor at 2026-04-28T13:24:12-04:00

  Expose startupHpc as an rts symbol
  

• 28f07d70
  by fendor at 2026-04-28T13:24:12-04:00

  Make HPC work with bytecode interpreter
  
  Add support to generate .tix files from bytecode objects and the
  bytecode interpreter.
  
  Conceptually, we insert HPC ticks into the bytecode similar to how we insert
  breakpoints.
  HPC and breakpoints do not share the same tick array but we use a separate
  tick-array for hpc/breakpoint ticks during bytecode generation.
  
  We teach the bytecode interpreter to handle hpc ticks.
  The implementation is quite trivial, simply increment the counter in the
  global hpc_ticks array for the respective module.
  
  This hpc_ticks array is generated as part of the `CStub`, so we can rely
  on it existing.
  
  A tricky bit is "registering" a bytecode object for HPC instrumentation.
  In the compiled case, this is achieved via CStub and initializer/finalizers
  `.init` sections which are called when the executable is run.
  After the initializers have been invoked, which is before `hs_init_ghc`,
  we then call `startup_hpc` in `hs_init_ghc` iff any modules were "registered"
  for hpc instrumentation via `hs_hpc_module`.
  
  Since bytecode objects are loaded after starting up GHCi, this workflow
  doesn't work for supporting `hpc` and the `hpc` run-time is never
  started, even if a module is added for instrumentation.
  
  We fix this issue by employing the same technique as is for `SptEntry`s:
  
  * We introduce a new field to `CompiledByteCode`, called `ByteCodeHpcInfo`
    which contains enough information to call `hs_hpc_module`, allowing us to
    register the module for `hpc` instrumentation`.
  * After registering the module, we unconditionally call `startupHpc`, to make
    sure the .tix file is written.
  
  Calling `startupHpc` multiple times is safe.
  Calling `hs_hpc_module` multiple times for the same module is also safe.
  
  If we didn't register the hpc module in this way, evaluating a bytecode object
  instrumented with `-fhpc` without registering it in the `hpc` run-time will
  simply not generate any `.tix` files for this bytecode object.
  
  However, this shouldn't happen if everything is set up correctly.
  
  Closes #27036
  

• 950879f0
  by Vladislav Zavialov at 2026-04-28T13:24:55-04:00

  Move NamespaceSpecifier from x-fields into the AST proper (#26678)
  
  This refactoring moves NamespaceSpecifier out of extension fields and into the
  AST proper, as it is part of the user-written source, and is not pass-specific.
  
  Summary of changes:
  
  * Move NamespaceSpecifier from GHC/Hs/Basic.hs to Language/Haskell/Syntax/ImpExp.hs
    and parameterise it by the compiler pass, creating the necessary extension points
  * Move NamespaceSpecifier out of XFixitySig into FixitySig
  * Move NamespaceSpecifier out of XIEThingAll (IEThingAllExt) into IEThingAll
  * Move NamespaceSpecifier out of XIEWholeNamespace (IEWholeNamespaceExt) into IEWholeNamespace
  
  This is a pure refactoring with no change in behaviour.
  

• 9797052b
  by Simon Peyton Jones at 2026-04-28T13:25:37-04:00

  Fix assertion check in checkResultTy
  
  As #27210 shows, the assertion was a little bit too eager.
  
  I refactored a bit by moving some code from GHC.Tc.Gen.App
  to GHC.Tc.Utils.Unify; see the new function tcSubTypeApp,
  which replaces tcSubTypeDS
  

• 9f85f034
  by Duncan Coutts at 2026-04-30T04:52:42-04:00

  Make cmm 'import "package" name;' syntax use consistent label types
  
  There is a little-used syntactic form in cmm imports:
  
  import "package" foo;
  
  Which means to import foo from the given package (unit id, specified as
  a string). This syntax is somewhat reminiscent of GHC's package import
  extension.
  
  This syntax form is not used in the rts cmm code, nor any of the boot
  libraries. It may not be used at all. Unclear.
  
  Change the kind of CLabel this syntax generates to be consistent with
  the others. The other cmm imports use ForeignLabel with
  ForeignLabelInExternalPackage. For some reason this form was using
  CmmLabel. Change that to also be ForeignLabel but with
  ForeignLabelInPackage. This specifies a specific package, rather
  than an unnamed external package.
  

• a811f68f
  by Duncan Coutts at 2026-04-30T04:52:42-04:00

  Change default cmm import statements to be internal
  
  Previously a cmm statement like:
  
  import foo;
  
  meant to expect the symbol from a different shared library than the
  current one.
  
  Now it means to expect the symbol from the same shared library as the
  current one. We'll add explicit syntax to indicate that it's a foreign
  import. Most existing uses are in fact intenal (rts to rts), so few
  imports will need to be annotated foreign. Examples would include cmm
  code in libraries (other than the rts) that need to access RTS APIs.
  
  In practice, this makes no difference whatsoever at the moment on any
  platform other than windows (where building Haskell libs as shared libs
  does not fully work yet), since the 'labelDynamic' treats all such
  labels as foreign, irrespective of the foreign label source.
  

• 17fe5d1d
  by Duncan Coutts at 2026-04-30T04:52:42-04:00

  Add cmm import syntax 'import DATA foo;' as better name for CLOSURE
  
  The existing syntax is:
  
  import CLOSURE foo;
  
  The new syntax is
  
  import DATA foo;
  
  This means to interpret the symbol foo as refering to data (i.e. a
  global constant or variable) rather than to code (a function). The
  historical syntax for this uses CLOSURE, which is rather misleading.
  Presumably this was done to avoid introducing new reserved words.
  
  Be less squemish about new reserved words and add DATA and use that.
  Keep the existing CLOSURE syntax as an alias for compatibility.
  

• 3a530d68
  by Duncan Coutts at 2026-04-30T04:52:42-04:00

  Add cmm 'import extern name;' syntax
  
  Since the default for cmm imports is now for symbols within the same
  shared object, we need a way to indicate we want a symbol from an
  external shared object:
  
  import extern foo;      -- for a function
  import extern DATA foo; -- for data
  
  This adds a new reserved word 'extern'.
  
  We don't expect to have to use this much. Most cmm imports are
  intra-DSO.
  
  This makes no difference currently on ELF and MachO platforms, but does
  make a difference to the linking conventions on PE (Windows).
  
  In future it's plausible we could take make distinctions on ELF or
  MachO, so it's worth trying to get it right. Windows can be the guinea
  pig.
  

• 2b8e44c7
  by Duncan Coutts at 2026-04-30T04:52:42-04:00

  Add cmm syntax 'import "package" DATA foo;' for completeness
  
  We already have:
  
  import DATA foo;      -- for data imports
  import "package" foo; -- for imports from a given unitid
  
  There's no reason not to have both at once:
  
  import "package" DATA foo;
  
  So add that.
  

• ee05e5cc
  by Duncan Coutts at 2026-04-30T04:52:42-04:00

  Improve the commentary for the cmm import grammar.
  
  AFAIK, this is the only place where GHC-style Cmm syntax is documented.
  

• b35946ad
  by Duncan Coutts at 2026-04-30T04:52:42-04:00

  Add a changelog.d entry for the .cmm import syntax changes
  

• d59b7c71
  by Wolfgang Jeltsch at 2026-04-30T04:53:25-04:00

  Move code that uses `GHC.Internal.Text.Read` into `base`
  
  This contribution serves to remove all dependencies on
  `GHC.Internal.Text.Read` from within `ghc-internal`, so that the
  implementation of `Text.Read` and ultimately more reading-related code
  can be moved to `base` as well.
  
  The following things are moved from `ghc-internal` to `base`:
  
    * I/O-related `Read` instances
    * Most of the `Numeric` implementation
    * The instance `Read ByteOrder`
    * The `parseVersion` operation
    * The `readConstr` operation
  
  Metric Increase:
      LinkableUsage01
      T9198
      T12425
      T13035
      T13820
      T18140
  

• 5bd6a964
  by Rodrigo Mesquita at 2026-04-30T04:54:08-04:00

  New rts Message to {set,unset} TSO flags
  
  This commit introduces stg_MSG_SET_TSO_FLAG_info and
  stg_MSG_UNSET_TSO_FLAG_info, which allows setting flags of a TSO other
  than yourself.
  
  This is especially useful/necessary to set breakpoints and toggle
  breakpoints of different threads, which is needed to safely implement
  features like pausing, toggling step-out, toggling step-in per thread,
  etc.
  
  Fixes #27131
  
  -------------------------
  Metric Decrease:
      T3294
  -------------------------
  

• ce97fd3e
  by Rodrigo Mesquita at 2026-04-30T04:54:08-04:00

  test: Add test setting another TSO's flags
  
  Introduces a test that runs on two capabilities. The main thread running
  on Capability 0 sets the flags on a TSO running on Capability 1.
  The TSO from Capability 1 itself checks whether its flags were set and
  reports that back.
  
  This validates that the RTS messages for setting TSO flags work, even if
  it doesn't test a harsher scenario with race conditions to exercise why
  the message passing is necessary for safely setting another TSO's flags.
  
  Part of #27131
  

• a4ff6315
  by David Eichmann at 2026-04-30T04:54:51-04:00

  Hadrian: withResponseFile outputs response file when verbodity is Verbose
  
  At the Verbose verbosity, shake will display full commandlines. With the
  use of response files, the full command is hidden. That makes it hard to run
  the command manually. This commit outputs the contents of the response
  file so that that full command can be recreated and also hints at the
  use of the --keep-response-files hadrian flag.
  

• cd732ee3
  by Duncan Coutts at 2026-04-30T04:54:51-04:00

  Use response files for hadrian linking with ghc (support long command lines)
  
  In future support for windows dynamic linking, we expect long command
  lines for linking dll files with ghc. Experiments with dynamic linking the
  ghc-internal library yielded a link command well over 32kb. We did not
  encounter this before for static libs, since we already use ar's @file
  feature (if available, which it is for the llvm toolchain).
  
  Co-authored-by: David Eichmann <davide@well-typed.com>
  

• 3d41368f
  by Andreas Klebinger at 2026-04-30T04:55:32-04:00

  Split GHC.Driver.Main.hs up into multiple components.
  
  This commit splits GHC.Driver.Main into four components:
  
  * GHC.Driver.Main.Compile
  * GHC.Driver.Main.Hsc
  * GHC.Driver.Main.Interactive
  * GHC.Driver.Main.Passes
  
  We might improve that separation further in the future but this should
  hopefully make it easier to reason about and work with this part of the
  code.
  

• 2128ba85
  by Cheng Shao at 2026-04-30T04:56:14-04:00

  compiler: avoid unique OccNames for internal Names in bytecode objects
  
  This patch improves bytecode object serialization logic by avoiding
  the construction of unique `OccName`s when serializing/deserializing
  internal `Name`s. Closes #27213.
  
  -------------------------
  Metric Decrease:
      LinkableUsage01
  -------------------------
  

• e16854c3
  by Vladislav Zavialov at 2026-04-30T04:56:57-04:00

  Replace GHC 9.16 references with GHC 10.0
  

• 39141343
  by Alice Rixte at 2026-05-01T14:09:32+02:00

  Add Bounded instances for Double, Float, CDouble and CFloat
  

• 5c4c3bf4
  by Sylvain Henry at 2026-05-02T03:39:28-04:00

  testsuite: fix flaky foundation Divisible / mulIntMayOflo# tests (#27222)
  
  Since the LCG was widened to 64 bits and the seed randomised per CI run
  (commit 2d30f7d3400 "Vendor mini-QuickCheck for testsuite"), two latent
  bugs in the foundation test surface stochastically:
  
  * The Divisible property `(x `div` y) * y + (x `mod` y) == x` raises
    ArithException(Overflow) when (a, b) = (minBound, -1) for fixed-width
    signed Integral types. Split testNumber/testDivisible into Bounded and
    unbounded variants and skip just that one pair, gated by
    `(minBound :: a) < 0` so unsigned types lose no coverage.
  
  * The `mulIntMayOflo#` test compared raw Int# bit-for-bit, but the primop
    is only specified to return 0/non-zero -- the exact non-zero indicator
    legitimately differs between backends and inlining choices. Add a
    dedicated `testPrimopMayOflo` helper that only compares zero / non-zero.
  
  Also fix the long-standing typo "Dividible" -> "Divisible" in identifiers.
  
  Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
  

• e242ce4f
  by Sylvain Henry at 2026-05-02T03:39:28-04:00

  testsuite: catch and display exceptions in MiniQuickCheck
  
  Exceptions raised while evaluating a property are now caught and reported
  as a normal failure (with arguments and seed), instead of aborting the
  test.
  
  Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
  

• 3b75cccd
  by fendor at 2026-05-02T03:40:14-04:00

  Fix name of Note [Structure of dep_boot_mods]
  

• 9a9ae4df
  by Duncan Coutts at 2026-05-05T14:44:37-04:00

  Use __attribute__((dllimport)) for external RTS symbol declarations
  
  This is needed to be hygenic about DLL symbol imports and exports.
  The attribute is ignored on platforms other than Windows.
  
  Use of the attribute however means that external data symbols do not
  have a compile-time constant address (they are loaded using an
  indirection). This means we have to adjust the rtsSyms initial linker
  table so that it is a local constant in a function, rather than a global
  constant. We now define it within a function that pre-populates the
  symbol table with the RTS symbols.
  

• 2ad3e01e
  by Duncan Coutts at 2026-05-05T14:44:37-04:00

  Fix the rts linker declarations for a few data symbols
  
  and ensure that the (windows only) rts_IOManagerIsWin32Native data
  symbol is marked as externally visible.
  

• 8ff4fdb5
  by David Eichmann at 2026-05-05T14:44:37-04:00

  Hadrian: Disable runtime pseudo relocations for RTS on windows hosts
  

• 96974723
  by Teo Camarasu at 2026-05-05T14:45:20-04:00

  ghci/TH: refactor to use IORef QState
  
  This is a pure refactor and shouldn't modify semantics at all
  

• eff6bfaf
  by Teo Camarasu at 2026-05-05T14:45:20-04:00

  iserv: recover/getQ/putQ should behave same as internal interpreter
  
  The internal and external interpreter should behave the same when
  handling `recover`, the exeception recovery method of Q.
  In practice, they diverge. In case of failure, the internal interpreter
  only restores error message state to before the computation, wheras the
  external interperter restores error message state *and* the state of putQ/getQ.
  
  As far as I can tell this is a simple mistake in the implementation.
  Note [TH recover with -fexternal-interpreter] describes the correct
  behaviour but the implementation doesn't mirror this.
  
  This change restores the correct behaviour by keeping the effects of
  putQ in the erroring computation.
  
  This is a breaking change since it modifies the behaviour of programs
  that rely on recover ignoring putQ from failling computations when used
  with the external interpreter. Although I highly doubt anyone relies on
  this behaviour.
  
  This divergence was first introduced in d00c308633fe7d216d31a1087e00e63532d87d6d.
  As far as I can tell this was unintentional and tha commit was trying to solve a different bug.
  
  Resolves #27022
  

• 1cb1d672
  by Wen Kokke at 2026-05-06T09:53:40-04:00

  rts: Add dynamic trace flags API
  
  This commit adds an API to the RTS (exposed via Rts.h) that allows users to dynamically change the trace flags.
  Prior to this commit, users were able to stop and start the profiling and heap profiling timers (via startProfTimer/stopProfTimer and startHeapProfTimer/stopHeapProfTimer).
  This extends that functionality to also cover the core event types.
  
  The getTraceFlag/setTraceFlag functions read and write the values of the trace flag cache, which is allocated by Trace.c, rather than modifying the members of RtsFlags.TraceFlags.
  This is done under the assumption that the members of RtsFlags should not be modified after RTS initialisation.
  Consequently, if the user modifies the trace flags using setTraceFlag, the object returned by getTraceFlags (from base) will not reflect these changes.
  
  The trace flags are not protected by locks of any sort.
  Hence, these functions are not thread-safe.
  However, the trace flags are not modified by the RTS after initialisation, only read, so the race conditions introduced by one user modifying them are most likely benign.
  
  This PR also puts the trace flag cache in a single global struct, as opposed to a collection of global variables, and changes the types of the individual flags from uint8_t to bool, as these have the same size on both Clang and GCC and are a better semantic match.
  Prior to the change to uint8_t, they had type int, see 42c47cd6.
  Even with its deprecation in C23, I don't think there should be any issue depending on stdbool.h.
  The TRACE_X macros are redefined to access the global struct, with values cast to const bool to ensure they are read-only.
  

• 9d54dc94
  by Wen Kokke at 2026-05-06T09:53:40-04:00

  rts: Ensure TRACE_X values are used in place of RtsFlags.TraceFlags.X
  

• 418d737b
  by Wen Kokke at 2026-05-06T09:53:40-04:00

  rts: Fix nonmoving-GC tracing
  
  The current nonmoving-GC tracing functions were written in a different
  style from the other tracing functions. They were directly implemented
  as, e.g., a traceConcMarkEnd function that called postConcMarkEnd.
  The other tracing functions are implemented as, e.g., traceThreadLabel_,
  a function that posts the thread label event, and traceThreadLabel, a
  macro that checks whether TRACE_scheduler is set. This commit fixes that
  implementation, and ensures that the nonmoving-GC tracing functions only
  emit events if nonmoving-GC tracing is enabled.
  

• 99f4afa4
  by Wen Kokke at 2026-05-06T09:53:40-04:00

  rts: Add SymI_HasProto for get/setTraceFlag
  

• 7e9eb8b9
  by Wen Kokke at 2026-05-06T09:53:40-04:00

  rts: Add SymI_HasProto for start/endEventLogging
  

• 3a3045fb
  by Wen Kokke at 2026-05-06T09:53:41-04:00

  rts: Add changelog entry
  

• a3b339a4
  by Teo Camarasu at 2026-05-06T09:54:25-04:00

  interface-stability/base: don't distinguish ws-32
  
  The interface of base is identical when the Word size is 32bits.
  Therefore, there is no need to have another file for this case.
  So, we delete it.
  
  Step towards: #26752
  

• eb922183
  by Duncan Coutts at 2026-05-07T14:28:50+01:00

  Add a rts posix FdWakup utility module
  
  This will be used to implement wakeupIOManager for in-RTS I/O managers.
  
  It provides a notification/wakeup mechanism using FDs, suitable for
  situations when a thread is blocked on a set of fds anyway. It uses the
  classic self-pipe trick, or equivalently eventfd on supported platforms.
  
  This will initially be used to implement prompt interrupt or shutdown of
  the posix ticker thread.
  

• 01b0e233
  by Duncan Coutts at 2026-05-07T14:28:50+01:00

  Add prompt shutdown to the pthread ticker implementation.
  
  The Linux timerfd ticker monitors a pipe which is used by exitTicker to
  ensure a prompt wakeup and shutdown. The pthread ticker lacked this and
  so would only exit at the next ticker wakeup (10ms by default).
  
  This patch adds the same mechanism to the pthread ticker.
  
  This changes the pthread ticker from waiting by using nanosleep() to
  waiting using either ppoll() or select(), so that it can wait on both
  a time and a file descriptor. On Linux at least, a test program to
  compare the timing jitter of these APIs shows that using nanpsleep,
  ppoll or select makes no statistical difference to the maximum or
  average jitter.
  
  This is a step towards unifying the posix ticker implementations, so
  that we can have just one portable one (albeit with some limited cpp).
  It is also a step towards using the ticker as part of a more general
  implementation of wakeUpRts, since this will require a method to wake
  the rts from a signal handler context (ctl-c handler).
  

• bc41d646
  by Duncan Coutts at 2026-05-07T14:28:50+01:00

  Update ticker header commentary
  
  It was antique and didn't apply even to the previous implementation, and
  certainly not to the updated one.
  

• 4ed9a386
  by Duncan Coutts at 2026-05-07T14:28:50+01:00

  Remove the timerfd-based ticker implementation
  
  There does not appear to be any remaining advantage on Linux to using
  the timerfd ticker implementation over the portable one (using ppoll on
  Linux for precise timing).
  
  The eventfd implementation was originally added at a time when Linux was
  still using a signal based implementation. So it made sense at the time.
  See (closed) issue #10840.
  

• 97504fa6
  by Duncan Coutts at 2026-05-07T14:28:50+01:00

  Consolidate to a single posix ticker implementation
  
  Previously we had four implementations, two using signals and two using
  threads. Having just one should make behaviour more consistent between
  platforms, and should make maintenance easier.
  

• 1e60023b
  by Facundo Domínguez at 2026-05-07T18:01:16-04:00

  Generalize so_inline to specify which bindings should be preserved
  
  This commit generalizes the so_inline option of the simple optimizer
  so we can indicate with a predicate the specific bindings that should
  be kept.
  
  This feature is important for the LiquidHaskell plugin, which relies on the
  simple optimizer to make core programs easier to read, but needs to preserve
  bindings that are relevant for verification.
  
  See https://gitlab.haskell.org/ghc/ghc/-/issues/24386 for the full discussion.
  

• 44cf9cd7
  by Wolfgang Jeltsch at 2026-05-12T09:48:18-04:00

  Move the `Text.Read` implementation into `base`
  

• 4ac3f7d6
  by Vladislav Zavialov at 2026-05-12T09:49:03-04:00

  EPA: Use AnnParen for tuples and sums
  
  Summary of changes
  
  * Do not use AnnParen in XListTy, replace it with EpToken "[" and "]"
  * Specialise AnnParen to tuple/sums by dropping the AnnParensSquare
    and keeping only AnnParens and AnnParensHash
  * Use AnnParen in XExplicitTuple
  * Use AnnParen in XExplicitTupleTy
  * Use AnnParen in XTuplePat
  * Use AnnParen in XExplicitSum (via AnnExplicitSum)
  * Use AnnParen in XSumPat (via EpAnnSumPat)
  
  This is a refactoring with no user-facing changes.
  

• 1bdcddec
  by Duncan Coutts at 2026-05-12T09:49:48-04:00

  Add minimal dlltool support to ghc-toolchain
  
  The dlltool is a tool that can create dll import libraries from .def
  files. These .def files list the exported symbols of dlls. Its somewhat
  like gnu linker scripts, but more limited.
  
  We will need dlltool to build the rts and ghc-internal libraries as DLLs
  on Windows. The rts and ghc-internal libraries have a recursive
  dependency on each other. Import libraries can be used to resolve
  recursive dependencies between dlls. We will use an import library for
  the rts when linking the ghc-internal library.
  

• f7fc3770
  by Duncan Coutts at 2026-05-12T09:49:48-04:00

  Add minimal dlltool support into ./configure
  
  Find dlltool, and hopefully support finding it within the bundled llvm
  toolchain on windows.
  

• e4e22bfb
  by Duncan Coutts at 2026-05-12T09:49:48-04:00

  Update the default host and target files for dlltool support
  

• 5666c8f9
  by Duncan Coutts at 2026-05-12T09:49:48-04:00

  Add dlltool as a hadrian builder
  
  Optional except on windows.
  

• 5e14fe3f
  by Duncan Coutts at 2026-05-12T09:49:48-04:00

  Update and generate libHSghc-internal.def from .def.in file
  
  The only symbol that the rts imports from the ghc-internal package now
  is init_ghc_hs_iface. So the rts only needs an import lib that defines
  that one symbol.
  
  Also, remove the libHSghc-prim.def because it is redundant. The rts no
  longer imports anything from ghc-prim.
  
  Keep libHSffi.def for now. We may yet need it once it is clear how
  libffi is going to be built/used for ghc.
  

• 3d91e4a6
  by Duncan Coutts at 2026-05-12T09:49:48-04:00

  Add rule to build libHSghc-internal.dll.a and link into the rts
  
  On windows only, with dynamic linking.
  
  This is needed because on windows, all symbols in dlls must be resolved.
  No dangling symbols allowed. References to external symbols must be
  explicit. We resolve this with an import library. We create an import
  library for ghc-internal, a .dll.a file. This is a static archive
  containing .o files that define the symbols we need, and crucially have
  ".idata" sections that specifies the symbols the dll imports and from
  where.
  
  Note that we do not install this libHSghc-internal.dll.a, and it does
  not need to list all the symbols exported by that package. We create a
  special purpose import lib and only use it when linking the rts dll, so
  it only has to list the symbols that the rts uses from ghc-internal
  (which is exactly one symbol: init_ghc_hs_iface).
  

• c8dae539
  by Alice Rixte at 2026-05-12T09:50:52-04:00

  Script for downloading and copying `base-exports` file
  

• 4df3fe3c
  by Duncan Coutts at 2026-05-13T11:33:42+01:00

  Hadrian: remove legacy rts .so symlinks
  
  For compatibility with the old makefile based build system, hadrian had
  rules to generate symlinks from unversioned to versioned names for the
  rts .so/.dynlib file, like libHSrts-ghcx.y.so -> libHSrts-1.0.3-ghcx.y.so
  
  We no longer need these symlinks since the makefile build system has
  been retired some time ago. The need for these symlinks is awkward on
  windows where we cannot (in practice) create symlinks. So rather than
  make them conditional (non-windows), just remove them entirely.
  

725 changed files:

• .gitlab-ci.yml
• .gitlab/ci.sh
• .gitlab/generate-ci/gen_ci.hs
• .gitlab/issue_templates/release_tracking.md
• .gitlab/jobs.yaml
• .gitlab/merge_request_templates/Default.md
• + changelog.d/T15973
• + changelog.d/T19174.md
• + changelog.d/T25636
• + changelog.d/T27022
• + changelog.d/T27121.md
• + changelog.d/T27124.md
• + changelog.d/T27131
• + changelog.d/binary-array-no-list
• + changelog.d/bytecode-interpreter-hpc-support
• + changelog.d/changelog-entries
• + changelog.d/cmm-import-syntax-changes
• + changelog.d/config
• + changelog.d/dynamic-trace-flags
• + changelog.d/fix-duplicate-pmc-warnings
• + changelog.d/fix-finalizers-27072
• + changelog.d/fix-ghci-duplicate-warnings-26233
• + changelog.d/ghc-api-epa-parens
• + changelog.d/ghc-api-holes-ast-27111
• + changelog.d/ghc-api-namespace-specifier-26678
• + changelog.d/ghc-pkg-long-path-support
• + changelog.d/hadrian-response-files.md
• + changelog.d/hadrian-warn-missing-package-index-16484
• + changelog.d/llvm-22
• + changelog.d/simd_constant_folding
• + changelog.d/skip-test
• + changelog.d/so_inline_is_a_predicate
• + changelog.d/tcplugin_init.md
• + changelog.d/tcplugins-pmc.md
• + changelog.d/typecheckModule-API.md
• + changelog.d/withTcPlugins.md
• compiler/GHC.hs
• compiler/GHC/Builtin/primops.txt.pp
• compiler/GHC/ByteCode/Asm.hs
• compiler/GHC/ByteCode/Binary.hs
• compiler/GHC/ByteCode/Breakpoints.hs
• compiler/GHC/ByteCode/InfoTable.hs
• compiler/GHC/ByteCode/Instr.hs
• compiler/GHC/ByteCode/Linker.hs
• compiler/GHC/ByteCode/Types.hs
• compiler/GHC/Cmm/CommonBlockElim.hs
• compiler/GHC/Cmm/Dataflow/Graph.hs
• compiler/GHC/Cmm/Dataflow/Label.hs
• compiler/GHC/Cmm/LayoutStack.hs
• compiler/GHC/Cmm/Lexer.x
• compiler/GHC/Cmm/Liveness.hs
• compiler/GHC/Cmm/Opt.hs
• compiler/GHC/Cmm/Parser.y
• compiler/GHC/Cmm/Utils.hs
• compiler/GHC/CmmToAsm/CFG.hs
• compiler/GHC/CmmToAsm/X86/CodeGen.hs
• compiler/GHC/CmmToLlvm/CodeGen.hs
• compiler/GHC/Core/Lint.hs
• + compiler/GHC/Core/Lint/SubstTypeLets.hs
• compiler/GHC/Core/Multiplicity.hs
• compiler/GHC/Core/Opt/DmdAnal.hs
• compiler/GHC/Core/Opt/FloatOut.hs
• compiler/GHC/Core/Opt/OccurAnal.hs
• compiler/GHC/Core/Opt/Simplify/Iteration.hs
• compiler/GHC/Core/Opt/WorkWrap/Utils.hs
• compiler/GHC/Core/RoughMap.hs
• compiler/GHC/Core/SimpleOpt.hs
• compiler/GHC/Core/Subst.hs
• compiler/GHC/Core/TyCo/Ppr.hs
• compiler/GHC/Core/TyCon/Env.hs
• compiler/GHC/Core/Unify.hs
• compiler/GHC/Core/Utils.hs
• compiler/GHC/CoreToStg/Prep.hs
• compiler/GHC/Data/FastString.hs
• compiler/GHC/Data/FastString/Env.hs
• compiler/GHC/Data/Pair.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/Backend.hs
• compiler/GHC/Driver/Backpack.hs
• compiler/GHC/Driver/CodeOutput.hs
• compiler/GHC/Driver/Config.hs
• compiler/GHC/Driver/Config/Core/Lint.hs
• compiler/GHC/Driver/Env/Types.hs
• compiler/GHC/Driver/Flags.hs
• compiler/GHC/Driver/Main.hs
• + compiler/GHC/Driver/Main/Compile.hs
• compiler/GHC/Driver/Main.hs-boot → compiler/GHC/Driver/Main/Compile.hs-boot
• + compiler/GHC/Driver/Main/Hsc.hs
• + compiler/GHC/Driver/Main/Interactive.hs
• + compiler/GHC/Driver/Main/Passes.hs
• + compiler/GHC/Driver/Main/Passes.hs-boot
• compiler/GHC/Driver/Pipeline.hs
• compiler/GHC/Driver/Pipeline/Execute.hs
• compiler/GHC/Driver/Pipeline/Monad.hs
• compiler/GHC/Driver/Pipeline/Phases.hs
• compiler/GHC/Driver/Plugins.hs
• compiler/GHC/Driver/Session.hs
• compiler/GHC/Hs/Basic.hs
• compiler/GHC/Hs/Binds.hs
• compiler/GHC/Hs/Decls.hs
• compiler/GHC/Hs/Dump.hs
• compiler/GHC/Hs/Expr.hs
• compiler/GHC/Hs/Expr.hs-boot
• compiler/GHC/Hs/ImpExp.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.hs
• compiler/GHC/HsToCore/Binds.hs
• compiler/GHC/HsToCore/Breakpoints.hs
• compiler/GHC/HsToCore/Coverage.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/Monad.hs
• compiler/GHC/HsToCore/Pmc.hs
• compiler/GHC/HsToCore/Pmc/Desugar.hs
• compiler/GHC/HsToCore/Pmc/Solver/Types.hs
• compiler/GHC/HsToCore/Quote.hs
• compiler/GHC/HsToCore/Ticks.hs
• compiler/GHC/HsToCore/Types.hs
• compiler/GHC/Iface/Ext/Ast.hs
• compiler/GHC/Iface/Load.hs
• compiler/GHC/Iface/Tidy.hs
• compiler/GHC/Iface/Type.hs
• compiler/GHC/Linker/Executable.hs
• compiler/GHC/Linker/Loader.hs
• compiler/GHC/Parser.y
• compiler/GHC/Parser/Annotation.hs
• 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/Platform.hs
• compiler/GHC/Platform/Tag.hs
• compiler/GHC/Rename/Bind.hs
• compiler/GHC/Rename/Env.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/Runtime/Eval.hs
• compiler/GHC/Runtime/Heap/Inspect.hs
• compiler/GHC/Runtime/Interpreter.hs
• compiler/GHC/Runtime/Interpreter/Types/SymbolCache.hs
• compiler/GHC/Runtime/Loader.hs
• compiler/GHC/Stg/Debug.hs
• compiler/GHC/StgToByteCode.hs
• compiler/GHC/StgToCmm.hs
• compiler/GHC/StgToCmm/Bind.hs
• compiler/GHC/StgToCmm/Closure.hs
• compiler/GHC/StgToCmm/DataCon.hs
• compiler/GHC/StgToCmm/Env.hs
• compiler/GHC/StgToCmm/Expr.hs
• compiler/GHC/StgToCmm/Foreign.hs
• compiler/GHC/StgToCmm/Heap.hs
• compiler/GHC/StgToCmm/InfoTableProv.hs
• compiler/GHC/StgToCmm/Layout.hs
• compiler/GHC/StgToCmm/Prim.hs
• compiler/GHC/StgToCmm/Prof.hs
• compiler/GHC/StgToCmm/Ticky.hs
• compiler/GHC/StgToCmm/Utils.hs
• compiler/GHC/StgToJS/Prim.hs
• compiler/GHC/Tc/Deriv/Generate.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/Default.hs
• compiler/GHC/Tc/Gen/Export.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/Module.hs
• compiler/GHC/Tc/Solver/Default.hs
• compiler/GHC/Tc/Solver/Rewrite.hs
• compiler/GHC/Tc/Solver/Solve.hs
• compiler/GHC/Tc/Solver/Types.hs
• compiler/GHC/Tc/TyCl.hs
• compiler/GHC/Tc/TyCl/PatSyn.hs
• compiler/GHC/Tc/Types.hs
• compiler/GHC/Tc/Types/Evidence.hs
• compiler/GHC/Tc/Utils/Backpack.hs
• compiler/GHC/Tc/Utils/Env.hs
• compiler/GHC/Tc/Utils/Monad.hs
• compiler/GHC/Tc/Utils/TcMType.hs
• compiler/GHC/Tc/Utils/Unify.hs
• compiler/GHC/Tc/Zonk/Type.hs
• compiler/GHC/ThToHs.hs
• compiler/GHC/Types/Demand.hs
• compiler/GHC/Types/Error.hs
• compiler/GHC/Types/Error.hs-boot
• compiler/GHC/Types/Error/Codes.hs
• compiler/GHC/Types/ForeignStubs.hs
• compiler/GHC/Types/Hint.hs
• compiler/GHC/Types/Hint/Ppr.hs
• compiler/GHC/Types/HpcInfo.hs
• compiler/GHC/Types/Name/Env.hs
• compiler/GHC/Types/Name/Occurrence.hs
• compiler/GHC/Types/Name/Reader.hs
• compiler/GHC/Types/Tickish.hs
• compiler/GHC/Types/Unique/DFM.hs
• compiler/GHC/Types/Unique/DSet.hs
• compiler/GHC/Types/Unique/FM.hs
• compiler/GHC/Types/Var/Env.hs
• compiler/GHC/Unit/Module/Deps.hs
• compiler/GHC/Unit/Module/ModGuts.hs
• compiler/GHC/Unit/State.hs
• compiler/GHC/Utils/Binary.hs
• compiler/GHC/Utils/Misc.hs
• compiler/GHC/Utils/Ppr/Colour.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/ImpExp.hs
• compiler/Language/Haskell/Syntax/Pat.hs
• compiler/Language/Haskell/Syntax/Type.hs
• compiler/ghc.cabal.in
• configure.ac
• distrib/configure.ac.in
• − docs/users_guide/10.0.1-notes.rst
• + docs/users_guide/10.2.1-notes.rst
• − docs/users_guide/9.16.1-notes.rst
• docs/users_guide/conf.py
• docs/users_guide/debug-info.rst
• docs/users_guide/extending_ghc.rst
• docs/users_guide/exts/explicit_namespaces.rst
• docs/users_guide/exts/linear_types.rst
• + docs/users_guide/exts/modifiers.rst
• docs/users_guide/exts/qualified_strings.rst
• docs/users_guide/exts/required_type_arguments.rst
• docs/users_guide/exts/syntax.rst
• docs/users_guide/ghc_config.py.in
• − docs/users_guide/ghc_packages.py
• docs/users_guide/packages.rst
• docs/users_guide/release-notes.rst
• docs/users_guide/runtime_control.rst
• docs/users_guide/using-optimisation.rst
• docs/users_guide/using-warnings.rst
• docs/users_guide/using.rst
• ghc/GHC/Driver/Session/Mode.hs
• ghc/GHCi/UI.hs
• ghc/GHCi/UI/Info.hs
• ghc/Main.hs
• ghc/ghc-bin.cabal.in
• hadrian/bindist/Makefile
• hadrian/build-cabal
• hadrian/build-cabal.bat
• hadrian/cfg/default.host.target.in
• hadrian/cfg/default.target.in
• hadrian/cfg/system.config.in
• hadrian/doc/flavours.md
• hadrian/doc/make.md
• hadrian/doc/testsuite.md
• hadrian/hadrian.cabal
• hadrian/src/Builder.hs
• hadrian/src/CommandLine.hs
• hadrian/src/Context.hs
• hadrian/src/Hadrian/Builder.hs
• hadrian/src/Hadrian/Builder/Ar.hs
• hadrian/src/Hadrian/Utilities.hs
• hadrian/src/Main.hs
• hadrian/src/Oracles/Setting.hs
• hadrian/src/Packages.hs
• + hadrian/src/Rules/Changelog.hs
• hadrian/src/Rules/Documentation.hs
• hadrian/src/Rules/Generate.hs
• hadrian/src/Rules/Library.hs
• hadrian/src/Rules/Register.hs
• hadrian/src/Rules/Rts.hs
• hadrian/src/Rules/Test.hs
• hadrian/src/Settings/Builders/Cabal.hs
• hadrian/src/Settings/Builders/Ghc.hs
• hadrian/src/Settings/Builders/RunTest.hs
• hadrian/src/Settings/Default.hs
• hadrian/src/Settings/Packages.hs
• libraries/array
• libraries/base/base.cabal.in
• libraries/base/changelog.md
• libraries/base/src/Control/Concurrent.hs
• libraries/base/src/Data/Data.hs
• libraries/base/src/Data/Functor/Classes.hs
• libraries/base/src/Data/Functor/Compose.hs
• libraries/base/src/Data/Version.hs
• libraries/base/src/GHC/ByteOrder.hs
• libraries/base/src/GHC/IO/Handle.hs
• libraries/base/src/Numeric.hs
• libraries/base/src/Prelude.hs
• libraries/base/src/System/IO.hs
• libraries/base/src/Text/Printf.hs
• libraries/base/src/Text/Read.hs
• + libraries/base/tests/perf/ElemFusionUnknownList.hs
• + libraries/base/tests/perf/ElemFusionUnknownList_O1.stderr
• + libraries/base/tests/perf/ElemFusionUnknownList_O2.stderr
• + libraries/base/tests/perf/ElemNoFusion.hs
• + libraries/base/tests/perf/ElemNoFusion_O1.stderr
• + libraries/base/tests/perf/ElemNoFusion_O2.stderr
• − libraries/base/tests/perf/Makefile
• libraries/base/tests/perf/T17752.hs
• − libraries/base/tests/perf/T17752.stdout
• + libraries/base/tests/perf/T17752_O1.stderr
• + libraries/base/tests/perf/T17752_O2.stderr
• libraries/base/tests/perf/all.T
• libraries/deepseq
• libraries/directory
• libraries/exceptions
• libraries/file-io
• libraries/filepath
• libraries/ghc-boot-th/ghc-boot-th.cabal.in
• libraries/ghc-boot/GHC/Unit/Database.hs
• libraries/ghc-boot/ghc-boot.cabal.in
• libraries/ghc-compact/ghc-compact.cabal
• libraries/ghc-experimental/ghc-experimental.cabal.in
• libraries/ghc-experimental/tests/backtraces/all.T
• libraries/ghc-heap/tests/tso_and_stack_closures.hs
• libraries/ghc-internal/ghc-internal.cabal.in
• libraries/ghc-internal/include/CTypes.h
• libraries/ghc-internal/src/GHC/Internal/Data/Data.hs
• libraries/ghc-internal/src/GHC/Internal/Data/Version.hs
• libraries/ghc-internal/src/GHC/Internal/Float.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/Handle/Types.hs
• libraries/ghc-internal/src/GHC/Internal/IO/IOMode.hs
• libraries/ghc-internal/src/GHC/Internal/LanguageExtensions.hs
• libraries/ghc-internal/src/GHC/Internal/Numeric.hs
• libraries/ghc-internal/src/GHC/Internal/Read.hs
• libraries/ghc-internal/src/GHC/Internal/System/IO.hs
• − libraries/ghc-internal/src/GHC/Internal/Text/Read.hs
• libraries/ghc-internal/tests/stack-annotation/all.T
• libraries/ghc-prim/changelog.md
• libraries/ghc-prim/ghc-prim.cabal
• + libraries/ghci/GHCi/Coverage.hs
• libraries/ghci/GHCi/CreateBCO.hs
• libraries/ghci/GHCi/Message.hs
• libraries/ghci/GHCi/ObjLink.hs
• libraries/ghci/GHCi/ResolvedBCO.hs
• libraries/ghci/GHCi/Run.hs
• libraries/ghci/GHCi/TH.hs
• libraries/ghci/ghci.cabal.in
• libraries/haskeline
• libraries/hpc
• libraries/os-string
• libraries/parsec
• libraries/process
• libraries/semaphore-compat
• libraries/stm
• libraries/template-haskell-lift
• libraries/template-haskell-quasiquoter
• libraries/template-haskell/template-haskell.cabal.in
• libraries/terminfo
• libraries/unix
• m4/find_llvm_prog.m4
• m4/fp_setup_project_version.m4
• m4/fp_setup_windows_toolchain.m4
• m4/fptools_ghc_version.m4
• m4/fptools_set_platform_vars.m4
• m4/ghc_toolchain.m4
• m4/prep_target_file.m4
• rts/.gitignore
• rts/Disassembler.c
• rts/Hpc.c
• rts/IOManager.h
• rts/Interpreter.c
• rts/Linker.c
• rts/LinkerInternals.h
• rts/Messages.c
• rts/PrimOps.cmm
• rts/RtsSymbols.c
• rts/RtsSymbols.h
• rts/StgMiscClosures.cmm
• rts/Threads.c
• rts/Threads.h
• rts/Trace.c
• rts/Trace.h
• rts/include/Rts.h
• rts/include/rts/Bytecodes.h
• rts/include/rts/EventLogWriter.h
• rts/include/rts/storage/ClosureMacros.h
• rts/include/rts/storage/Closures.h
• rts/include/stg/MiscClosures.h
• rts/linker/Elf.c
• + rts/posix/FdWakeup.c
• + rts/posix/FdWakeup.h
• rts/posix/Ticker.c
• − rts/posix/ticker/Pthread.c
• − rts/posix/ticker/TimerFd.c
• rts/rts.cabal
• rts/sm/NonMoving.c
• + rts/win32/libHSghc-internal.def.in
• testsuite/driver/runtests.py
• testsuite/driver/testglobals.py
• testsuite/driver/testlib.py
• testsuite/mk/boilerplate.mk
• + testsuite/tests/MiniQuickCheck.hs
• testsuite/tests/cabal/Makefile
• testsuite/tests/cabal/all.T
• + testsuite/tests/cabal/ghcpkg10.stdout
• testsuite/tests/codeGen/should_run/T23146/T23146_liftedeq.hs
• + testsuite/tests/codeGen/should_run/T23146/T25636.script
• + testsuite/tests/codeGen/should_run/T23146/T25636.stdout
• testsuite/tests/codeGen/should_run/T23146/all.T
• + testsuite/tests/codeGen/should_run/T25636a/T25636a.script
• + testsuite/tests/codeGen/should_run/T25636a/T25636a.stdout
• + testsuite/tests/codeGen/should_run/T25636a/all.T
• + testsuite/tests/codeGen/should_run/T25636b/T25636b.script
• + testsuite/tests/codeGen/should_run/T25636b/T25636b.stdout
• + testsuite/tests/codeGen/should_run/T25636b/all.T
• + testsuite/tests/codeGen/should_run/T25636c/T25636c.script
• + testsuite/tests/codeGen/should_run/T25636c/T25636c.stdout
• + testsuite/tests/codeGen/should_run/T25636c/all.T
• + testsuite/tests/codeGen/should_run/T25636d/T25636d.script
• + testsuite/tests/codeGen/should_run/T25636d/T25636d.stdout
• + testsuite/tests/codeGen/should_run/T25636d/all.T
• + testsuite/tests/codeGen/should_run/T25636e/T25636e.script
• + testsuite/tests/codeGen/should_run/T25636e/T25636e.stdout
• + testsuite/tests/codeGen/should_run/T25636e/all.T
• + testsuite/tests/codeGen/should_run/T27072d.hs
• + testsuite/tests/codeGen/should_run/T27072d.stdout
• + testsuite/tests/codeGen/should_run/T27072d_c.c
• + testsuite/tests/codeGen/should_run/T27072d_check.c
• + testsuite/tests/codeGen/should_run/T27072w.hs
• + testsuite/tests/codeGen/should_run/T27072w.stdout
• + testsuite/tests/codeGen/should_run/T27072w_c.c
• testsuite/tests/codeGen/should_run/all.T
• testsuite/tests/corelint/LintEtaExpand.stderr
• testsuite/tests/corelint/T21115b.stderr
• + testsuite/tests/deSugar/should_compile/T25996.hs
• + testsuite/tests/deSugar/should_compile/T25996.stderr
• testsuite/tests/deSugar/should_compile/all.T
• 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/T10531/A.hs
• + testsuite/tests/driver/T10531/B.hs
• + testsuite/tests/driver/T10531/C.hs
• + testsuite/tests/driver/T10531/Makefile
• + testsuite/tests/driver/T10531/all.T
• + testsuite/tests/driver/T26435.ghc.stderr
• + testsuite/tests/driver/T26435.hs
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• utils/check-exact/ExactPrint.hs
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• utils/ghc-pkg/ghc-pkg.cabal.in
• utils/ghc-toolchain/exe/Main.hs
• utils/ghc-toolchain/src/GHC/Toolchain/Target.hs
• utils/haddock/haddock-api/haddock-api.cabal
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• 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/AttachInstances.hs
• utils/haddock/haddock-api/src/Haddock/Interface/Create.hs
• utils/haddock/haddock-api/src/Haddock/Interface/Rename.hs
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• utils/haddock/haddock-api/src/Haddock/InterfaceFile.hs
• utils/haddock/haddock-api/src/Haddock/Types.hs
• utils/haddock/haddock-library/haddock-library.cabal
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• utils/haddock/haddock.cabal
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• 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
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• utils/haddock/html-test/ref/QuasiExpr.html
• utils/haddock/html-test/ref/Test.html
• utils/haddock/html-test/src/LinearTypes.hs
• utils/haddock/latex-test/src/LinearTypes/LinearTypes.hs
• utils/hsc2hs
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