Sven Tennie pushed to branch wip/romes/hadrian-cross-stage2-rebase_SVEN_FINAL at Glasgow Haskell Compiler / GHC

Commits:

• 322dd672
  by Matthew Pickering at 2026-01-09T02:49:35-05:00

  rts: Use INFO_TABLE_CONSTR for stg_dummy_ret_closure
  
  Since the closure type is CONSTR_NOCAF, we need to use INFO_TABLE_CONSTR
  to populate the constructor description field (this crashes ghc-debug
  when decoding AP_STACK frames sometimes)
  
  Fixes #26745
  

• 039bac4c
  by Ben Gamari at 2026-01-09T20:22:16-05:00

  ghc-internal: Move STM utilities out of GHC.Internal.Conc.Sync
  
  This is necessary to avoid an import cycle on Windows when importing
  `GHC.Internal.Exception.Context` in `GHC.Internal.Conc.Sync`.
  
  On the road to address #25365.
  

• 8c389e8c
  by Ben Gamari at 2026-01-09T20:22:16-05:00

  base: Capture backtrace from throwSTM
  
  Implements core-libraries-committee#297.
  
  Fixes #25365.
  

• e1ce1fc3
  by Ben Gamari at 2026-01-09T20:22:16-05:00

  base: Annotate rethrown exceptions in catchSTM with WhileHandling
  
  Implements core-libraries-committee#298
  

• c4ebdbdf
  by Cheng Shao at 2026-01-09T20:23:06-05:00

  compiler: make getPrim eagerly evaluate its result
  
  This commit makes `GHC.Utils.Binary.getPrim` eagerly evaluate its
  result, to avoid accidental laziness when future patches build other
  binary parsers using `getPrim`.
  

• 66a0c4f7
  by Cheng Shao at 2026-01-09T20:23:06-05:00

  compiler: implement fast get/put for Word16/Word32/Word64
  
  Previously, `GHC.Utils.Binary` contains `get`/`put` functions for
  `Word16`/`Word32`/`Word64` which always loads and stores them as
  big-endian words at a potentially unaligned address. The previous
  implementation is based on loads/stores of individual bytes and
  concatenating bytes with bitwise operations, which currently cannot be
  fused to a single load/store operation by GHC.
  
  This patch implements fast `get`/`put` functions for
  `Word16`/`Word32`/`Word64` based on a single memory load/store, with
  an additional `byteSwap` operation on little-endian hosts. It is based
  on unaligned load/store primops added since GHC 9.10, and we already
  require booting with at least 9.10, so it's about time to switch to
  this faster path.
  

• 641ec3f0
  by Simon Peyton Jones at 2026-01-09T20:23:55-05:00

  Fix scoping errors in specialisation
  
  Using -fspecialise-aggressively in #26682 showed up a couple of
  subtle errors in the type-class specialiser.
  
  * dumpBindUDs failed to call `deleteCallsMentioning`, resulting in a
    call that mentioned a dictionary that was not in scope.  This call
    has been missing since 2009!
      commit c43c981705ec33da92a9ce91eb90f2ecf00be9fe
      Author: Simon Peyton Jones <simonpj@microsoft.com>
      Date:   Fri Oct 23 16:15:51 2009 +0000
  
    Fixed by re-combining `dumpBindUDs` and `dumpUDs`.
  
  * I think there was another bug involving the quantified type
    variables in polymorphic specialisation. In any case I refactored
    `specHeader` and `spec_call` so that the former looks for the
    extra quantified type variables rather than the latter.  This
    is quite a worthwhile simplification: less code, easier to grok.
  
  Test case in simplCore/should_compile/T26682,
  brilliantly minimised by @sheaf.
  

• 2433e91d
  by Cheng Shao at 2026-01-09T20:24:43-05:00

  compiler: change sectionProtection to take SectionType argument
  
  This commit changes `sectionProtection` to only take `SectionType`
  argument instead of whole `Section`, since it doesn't need the Cmm
  section content anyway, and it can then be called in parts of NCG
  where we only have a `SectionType` in scope.
  

• e5926fbe
  by Cheng Shao at 2026-01-09T20:24:43-05:00

  compiler: change isInitOrFiniSection to take SectionType argument
  
  This commit changes `isInitOrFiniSection` to only take `SectionType`
  argument instead of whole `Section`, since it doesn't need the Cmm
  section content anyway, and it can then be called in parts of NCG
  where we only have a `SectionType` in scope. Also marks it as
  exported.
  

• 244d57d7
  by Cheng Shao at 2026-01-09T20:24:43-05:00

  compiler: fix split sections on windows
  
  This patch fixes split sections on windows by emitting the right
  COMDAT section header in NCG, see added comment for more explanation.
  Fix #26696 #26494.
  
  -------------------------
  Metric Decrease:
      LargeRecord
      T9675
      size_hello_artifact
      size_hello_artifact_gzip
      size_hello_unicode
      size_hello_unicode_gzip
  Metric Increase:
      T13035
  -------------------------
  
  Co-authored-by: Codex <codex@openai.com>
  

• 182f3d0f
  by Cheng Shao at 2026-01-09T20:25:28-05:00

  iserv: add comment about -fkeep-cafs
  

• 49675b69
  by Matthew Craven at 2026-01-09T20:26:14-05:00

  Account for "stupid theta" in demand sig for DataCon wrappers
  
  Fixes #26748.
  

• f3c18890
  by Samuel Thibault at 2026-01-10T15:48:22+01:00

  hurd: Fix getExecutablePath build
  
  3939a8bf93e27 ("GNU/Hurd: Add getExecutablePath support") added using
  /proc/self/exe for GNU/Hurd but missed adding the required imports for
  the corresponding code.
  

• 7f15bd15
  by Samuel Thibault at 2026-01-12T07:16:25-05:00

  Fix the OS string encoding for GNU/Hurd
  
  Following https://github.com/haskell/cabal/pull/9434/files , and as seen
  in the various gnu_HOST_OS usages in the source code, it is expected that
  GNU/Hurd is advertised as "gnu", like the autotools do.
  

• 1db2f240
  by Andrew Lelechenko at 2026-01-12T07:17:06-05:00

  Add since annotation for Data.Bifoldable1
  
  Fixes #26432
  

• e038a383
  by Sven Tennie at 2026-01-12T07:17:49-05:00

  Ignore Windows CI tool directories in Git
  
  Otherwise, we see thousands of changes in `git status` which is very
  confusing to work with.
  

• 023c301c
  by sheaf at 2026-01-13T04:57:30-05:00

  Don't re-use stack slots for growing registers
  
  This commit avoids re-using a stack slot for a register that has grown
  but already had a stack slot.
  
  For example, suppose we have stack slot assigments
  
    %v1 :: FF64 |-> StackSlot 0
    %v2 :: FF64 |-> StackSlot 1
  
  Later, we start using %v1 at a larger format (e.g. F64x2) and we need
  to spill it again. Then we **must not** use StackSlot 0, as a spill
  at format F64x2 would clobber the data in StackSlot 1.
  
  This can cause some fragmentation of the `StackMap`, but that's probably
  OK.
  
  Fixes #26668
  

• d0966e64
  by fendor at 2026-01-13T04:58:11-05:00

  Remove `traceId` from ghc-pkg executable
  

• 20d7efec
  by Simon Peyton Jones at 2026-01-13T12:41:22-05:00

  Make SpecContr rules fire a bit later
  
  See #26615 and Note [SpecConstr rule activation]
  

• 8bc4eb8c
  by Andrew Lelechenko at 2026-01-13T12:42:03-05:00

  Upgrade mtl submodule to 2.3.2
  
  Fixes #26656
  

• c94aaacd
  by Cheng Shao at 2026-01-13T12:42:44-05:00

  compiler: remove iserv and only use on-demand external interpreter
  
  This patch removes `iserv` from the tree completely. Hadrian would no
  longer build or distribute `iserv`, and the GHC driver would use the
  on-demand external interpreter by default when invoked with
  `-fexternal-interpreter`, without needing to specify `-pgmi ""`. This
  has multiple benefits:
  
  - It allows cleanup of a lot of legacy hacks in the hadrian codebase.
  - It paves the way for running cross ghc's iserv via cross emulator
    (#25523), fixing TH/ghci support for cross targets other than
    wasm/js.
  

• c1fe0097
  by Peter Trommler at 2026-01-14T03:54:49-05:00

  PPC NCG: Fix shift right MO code
  
  The shift amount in shift right [arithmetic] MOs is machine word
  width. Therefore remove unnecessary zero- or sign-extending of
  shift amount.
  
  It looks harmless to extend the shift amount argument because the
  shift right instruction uses only the seven lowest bits (i. e. mod 128).
  But now we have a conversion operation from a smaller type to word width
  around a memory load at word width. The types are not matching up but
  there is no check done in CodeGen. The necessary conversion from word
  width down to the smaller width would be translated into a no-op on
  PowerPC anyway. So all seems harmless if it was not for a small
  optimisation in getRegister'.
  
  In getRegister' a load instruction with the smaller width of the
  conversion operation was generated. This loaded the most significant
  bits of the word in memory on a big-endian platform. These bits were
  zero and hence shift right was used with shift amount zero and not one
  as required in test Sized.
  
  Fixes #26519
  

• 2dafc65a
  by Cheng Shao at 2026-01-14T03:55:31-05:00

  Tree-wide cleanup of cygwin logic
  
  GHC has not supported cygwin for quite a few years already, and will
  not resume support in the forseeable future. The only supported
  windows toolchain is clang64/clangarm64 of the msys2 project. This
  patch cleans up the unused cygwin logic in the tree.
  
  Co-authored-by: Codex <codex@openai.com>
  

• 66b96e2a
  by Teo Camarasu at 2026-01-14T03:56:13-05:00

  Set default eventlog-flush-interval to 5s
  
  Resolves #26707
  

• d0254579
  by Andrew Lelechenko at 2026-01-14T03:56:53-05:00

  Document when -maxN RTS option was added
  

• f25e2b12
  by Cheng Shao at 2026-01-14T11:10:39-05:00

  testsuite: remove obsolete --ci option from the testsuite driver
  
  This patch removes the obsolete `--ci` option from the testsuite
  driver: neither the CI scripts nor hadrian ever invokes the testsuite
  driver with `--ci`, and the perf notes are always fetched to the
  `refs/notes/perf` local reference anyway.
  

• 7964763b
  by Julian Ospald at 2026-01-14T11:11:31-05:00

  Fix fetch_cabal
  
  * download cabal if the existing one is of an older version
  * fix FreeBSD download url
  * fix unpacking on FreeBSD
  

• 6b0129c1
  by Julian Ospald at 2026-01-14T11:11:31-05:00

  Bump toolchain in CI
  

• 0f53ccc6
  by Julian Ospald at 2026-01-14T11:11:31-05:00

  Use libffi-clib
  
  Previously, we would build libffi via hadrian
  and bundle it manually with the GHC bindist.
  
  This now moves all that logic out of hadrian
  and allows us to have a clean Haskell package
  to build and link against and ship it without
  extra logic.
  
  This patch still retains the ability to link
  against a system libffi.
  
  The main reason of bundling libffi was that on
  some platforms (e.g. FreeBSD and Mac), system libffi
  is not visible to the C toolchain by default,
  so users would require settings in e.g. cabal
  to be able to compile anything.
  
  This adds the submodule libffi-clib to the repository.
  

• 5e1cd595
  by Peng Fan at 2026-01-14T11:12:26-05:00

  NCG/LA64: add support for la664 micro architecture
  
  Add '-mla664' flag to LA664, which has some new features:
  atomic instructions, dbar hints, etc.
  
  'LA464' is the default so that unrecognized instructions are not
  generated.
  

• c56567ec
  by Simon Peyton Jones at 2026-01-15T23:19:04+00:00

  Add evals for strict data-con args in worker-functions
  
  This fixes #26722, by adding an eval in a worker for
  arguments of strict data constructors, even if the
  function body uses them strictly.
  
  See (WIS1) in Note [Which Ids should be strictified]
  
  I took the opportunity to make substantial improvements in the
  documentation for call-by-value functions.  See especially
     Note [CBV Function Ids: overview] in GHC.Types.Id.Info
     Note [Which Ids should be CBV candidates?] ditto
     Note [EPT enforcement] in GHC.Stg.EnforceEpt
  among others.
  

• 9719ce5d
  by Simon Peyton Jones at 2026-01-15T23:19:04+00:00

  Improve `interestingArg`
  
  This function analyses a function's argument to see if it is
  interesting enough to deserve an inlining discount. Improvements
  for
    * LitRubbish arguments
    * exprIsExpandable arguments
  
  See Note [Interesting arguments] which is substantially rewritten.
  

• 7b616b9f
  by Cheng Shao at 2026-01-16T06:45:00-05:00

  compiler: fix regression when compiling foreign stubs in the rts unit
  
  This patch fixes a regression when compiling foreign stubs in the rts
  unit introduced in 05e25647f72bc102061af3f20478aa72bff6ff6e. A simple
  revert would fix it, but it's better to implement a proper fix with
  comment for better understanding of the underlying problem, see the
  added comment for explanation.
  
  Co-authored-by: Codex <codex@openai.com>
  

• c343ef64
  by Sylvain Henry at 2026-01-16T06:45:51-05:00

  base: remove GHC.JS.Prim.Internal.Build (#23432)
  
  See accepted CLC proposal https://github.com/haskell/core-libraries-committee/issues/329
  

• 7bc29236
  by Matthew Pickering at 2026-01-16T22:19:16+01:00

  Add missing req_interp modifier to T18441fail3 and T18441fail19
  
  These tests require the interpreter but they were failing in a different
  way with the javascript backend because the interpreter was disabled and
  stderr is ignored by the test.
  

• 997811f1
  by Matthew Pickering at 2026-01-16T22:19:16+01:00

  Use explicit syntax rather than pure
  

• c0c2b8b1
  by Matthew Pickering at 2026-01-16T22:19:16+01:00

  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
  

• 647f7598
  by Matthew Pickering at 2026-01-16T22:19:16+01:00

  hadrian: Fill in more of the default.host toolchain file
  
  When you are building a cross compiler this file will be used to build
  stage1 and it's libraries, so we need enough information here to work
  accurately. There is still more work to be done (see for example, word
  size is still fixed).
  

• a3f6d80f
  by Matthew Pickering at 2026-01-16T22:19:16+01:00

  hadrian: Disable docs when cross compiling
  
  Before there were a variety of ad-hoc places where doc building was
  disabled when cross compiling.
  
  * Some CI jobs sets --docs=none in gen_ci.hs
  * Some CI jobs set --docs=none in .gitlab/ci.sh
  * There was some logic in hadrian to not need the ["docs"] target when
    making a bindist.
  
  Now the situation is simple:
  
  * If you are cross compiling then defaultDocsTargets is empty by
    default.
  
  In theory, there is no reason why we can't build documentation for cross
  compiler bindists, but this is left to future work to generalise the
  documentation building rules to allow this (#24289)
  

• dc096eba
  by Matthew Pickering at 2026-01-16T22:19:16+01:00

  hadrian: Build stage 2 cross compilers
  
  * Most of hadrian is abstracted over the stage in order to remove the
    assumption that the target of all stages is the same platform. This
    allows the RTS to be built for two different targets for example.
  * Abstracts the bindist creation logic to allow building either normal
    or cross bindists. Normal bindists use stage 1 libraries and a stage 2
    compiler. Cross bindists use stage 2 libararies and a stage 2
    compiler.
  * hadrian: Make binary-dist-dir the default build target. This allows us
    to have the logic in one place about which libraries/stages to build
    with cross compilers. Fixes #24192
  
  New hadrian target:
  
  * `binary-dist-dir-cross`: Build a cross compiler bindist (compiler =
    stage 1, libraries = stage 2)
  
  This commit also contains various changes to make stage2 compilers
  feasible.
  
  -------------------------
  Metric Decrease:
      ManyAlternatives
      MultiComponentModulesRecomp
      MultiLayerModulesRecomp
      T10421
      T12425
      T12707
      T13035
      T13379
      T15703
      T16577
      T18698a
      T18698b
      T18923
      T1969
      T21839c
      T3294
      T4801
      T5030
      T5321Fun
      T5642
      T783
      T9198
      T9872d
      T9961
      parsing001
      T5321FD
      T6048
  -------------------------
  
  Co-authored-by: Sven Tennie <sven.tennie@gmail.com>
  

• 07a03187
  by Sven Tennie at 2026-01-16T22:19:16+01:00

  Align CI scripts with master
  
  Fixup
  

• e6ec1ff3
  by Matthew Pickering at 2026-01-16T22:19:16+01:00

  ci: Test cross bindists
  
  We remove the special logic for testing in-tree cross
  compilers and instead test cross compiler bindists, like we do for all
  other platforms.
  

• 365ac1a8
  by Matthew Pickering at 2026-01-16T22:19:16+01:00

  ci: Introduce CROSS_STAGE variable
  
  In preparation for building and testing stage3 bindists we introduce the
  CROSS_STAGE variable which is used by a CI job to determine what kind of
  bindist the CI job should produce.
  
  At the moment we are only using CROSS_STAGE=2 but in the future we will
  have some jobs which set CROSS_STAGE=3 to produce native bindists for a
  target, but produced by a cross compiler, which can be tested on by
  another CI job on the native platform.
  
  CROSS_STAGE=2: Build a normal cross compiler bindist
  CROSS_STAGE=3: Build a stage 3 bindist, one which is a native compiler and library for the target
  

• ba73c3bb
  by Matthew Pickering at 2026-01-16T22:19:16+01:00

  hadrian: Refactor system-cxx-std-lib rules0
  
  I noticed a few things wrong with the hadrian rules for `system-cxx-std-lib` rules.
  
  * For `text` there is an ad-hoc check to depend on `system-cxx-std-lib` outside of `configurePackage`.
  * The `system-cxx-std-lib` dependency is not read from cabal files.
  * Recache is not called on the packge database after the `.conf` file is generated, a more natural place for this rule is `registerRules`.
  
  Treating this uniformly like other packages is complicated by it not having any source code or a cabal file. However we can do a bit better by reporting the dependency firstly in `PackageData` and then needing the `.conf` file in the same place as every other package in `configurePackage`.
  
  Fixes #25303
  

• e61ada48
  by Sven Tennie at 2026-01-16T22:19:16+01:00

  ci: Increase timeout for emulators
  
  Test runs with emulators naturally take longer than on native machines.
  
  Generate jobs.yml
  

• d5a745dd
  by Sven Tennie at 2026-01-16T22:19:17+01:00

  ghc: Distinguish between having an interpreter and having an internal one
  
  Otherwise, we fail with warnings when compiling tools. Actually, these
  are related but different things:
  
  - ghc can run an interpreter (either internal or external)
  - ghc is compiled with an internal interpreter
  

• 56f91636
  by Matthew Pickering at 2026-01-16T22:19:17+01:00

  ci: Javascript don't set CROSS_EMULATOR
  
  There is no CROSS_EMULATOR needed to run javascript binaries, so we
  don't set the CROSS_EMULATOR to some dummy value.
  

• 61f47cb6
  by Sven Tennie at 2026-01-16T22:19:17+01:00

  Javascript skip T23697
  
  See #22355 about how HSC2HS and the Javascript target don't play well
  together.
  

• 89875fff
  by Sven Tennie at 2026-01-16T22:19:17+01:00

  Mark T24602 as fragile
  
  It was skipped before (due to CROSS_EMULATOR being set, which changed
  for JS), so we don't make things worse by marking it as fragile.
  

• 9a8afd5d
  by Sven Tennie at 2026-01-16T22:19:17+01:00

  WIP: Dirty hack
  
  Let Stage0 build with the default.host.target file and decide for other
  stages if default.target cannot be used.
  
  Acutally, I don't like this logic on this level.
  

• 53dfdb41
  by Sven Tennie at 2026-01-16T22:19:17+01:00

  Windows needs NM_STAGE0 as well
  
  The stage0 always needs nm.
  

• e96d0e07
  by Sven Tennie at 2026-01-16T22:19:17+01:00

  T17912 sometimes works for windows-validate
  
  This seems to be timing related. However, just simply increasing the
  timeout (sleep) statement of this test didn't help. Maybe, it has been
  flaky on CI before.
  

203 changed files:

• .gitignore
• .gitlab/ci.sh
• .gitlab/generate-ci/gen_ci.hs
• .gitlab/jobs.yaml
• .gitmodules
• CODEOWNERS
• cabal.project-reinstall
• compiler/GHC/Cmm.hs
• compiler/GHC/Cmm/InitFini.hs
• compiler/GHC/CmmToAsm/AArch64/Ppr.hs
• compiler/GHC/CmmToAsm/Config.hs
• compiler/GHC/CmmToAsm/PPC/CodeGen.hs
• compiler/GHC/CmmToAsm/Ppr.hs
• compiler/GHC/CmmToAsm/Reg/Linear.hs
• compiler/GHC/CmmToAsm/Reg/Linear/StackMap.hs
• compiler/GHC/CmmToAsm/Wasm/FromCmm.hs
• compiler/GHC/CmmToAsm/X86/Ppr.hs
• compiler/GHC/CmmToC.hs
• compiler/GHC/CmmToLlvm/Data.hs
• compiler/GHC/Core/Opt/Arity.hs
• compiler/GHC/Core/Opt/Simplify/Env.hs
• compiler/GHC/Core/Opt/Simplify/Iteration.hs
• compiler/GHC/Core/Opt/Simplify/Utils.hs
• compiler/GHC/Core/Opt/SpecConstr.hs
• compiler/GHC/Core/Opt/Specialise.hs
• compiler/GHC/Core/Opt/WorkWrap.hs
• compiler/GHC/Core/Opt/WorkWrap/Utils.hs
• compiler/GHC/Core/Rules.hs
• compiler/GHC/Core/Tidy.hs
• compiler/GHC/Core/Unfold.hs
• compiler/GHC/Core/Unfold/Make.hs
• compiler/GHC/Core/Utils.hs
• compiler/GHC/CoreToStg/Prep.hs
• compiler/GHC/Driver/CodeOutput.hs
• compiler/GHC/Driver/Config/CmmToAsm.hs
• compiler/GHC/Driver/DynFlags.hs
• compiler/GHC/Driver/MakeFile.hs
• compiler/GHC/Driver/Session.hs
• compiler/GHC/Linker/Loader.hs
• compiler/GHC/Linker/Unit.hs
• compiler/GHC/Runtime/Interpreter/Init.hs
• compiler/GHC/Settings/IO.hs
• compiler/GHC/Stg/EnforceEpt.hs
• compiler/GHC/Stg/Lint.hs
• compiler/GHC/StgToCmm/Closure.hs
• compiler/GHC/StgToCmm/Expr.hs
• compiler/GHC/SysTools/Terminal.hs
• compiler/GHC/Types/Id.hs
• compiler/GHC/Types/Id/Info.hs
• compiler/GHC/Types/Id/Make.hs
• compiler/GHC/Unit/State.hs
• compiler/GHC/Utils/Binary.hs
• configure.ac
• distrib/configure.ac.in
• docs/users_guide/9.16.1-notes.rst
• docs/users_guide/ghci.rst
• docs/users_guide/packages.rst
• docs/users_guide/phases.rst
• docs/users_guide/using-concurrent.rst
• docs/users_guide/using.rst
• docs/users_guide/win32-dlls.rst
• driver/ghci/ghci.c
• driver/utils/cwrapper.c
• driver/utils/isMinTTY.c
• ghc/GHC/Driver/Session/Mode.hs
• ghc/GHCi/UI.hs
• ghc/Main.hs
• ghc/ghc-bin.cabal.in
• hadrian/README.md
• hadrian/bindist/config.mk.in
• hadrian/bindist/cwrappers/cwrapper.c
• hadrian/cfg/default.host.target.in
• + hadrian/cfg/system.config.host.in
• hadrian/cfg/system.config.in
• + hadrian/cfg/system.config.target.in
• hadrian/doc/user-settings.md
• hadrian/hadrian.cabal
• hadrian/src/Base.hs
• + hadrian/src/BindistConfig.hs
• hadrian/src/Builder.hs
• hadrian/src/Context.hs
• hadrian/src/Expression.hs
• hadrian/src/Flavour.hs
• hadrian/src/Flavour/Type.hs
• hadrian/src/Hadrian/Builder.hs
• hadrian/src/Hadrian/Haskell/Cabal/Parse.hs
• hadrian/src/Hadrian/Haskell/Cabal/Type.hs
• hadrian/src/Hadrian/Haskell/Hash.hs
• hadrian/src/Hadrian/Oracles/TextFile.hs
• hadrian/src/Oracles/Flag.hs
• hadrian/src/Oracles/Flavour.hs
• hadrian/src/Oracles/Setting.hs
• hadrian/src/Oracles/TestSettings.hs
• hadrian/src/Packages.hs
• hadrian/src/Rules.hs
• hadrian/src/Rules/BinaryDist.hs
• hadrian/src/Rules/CabalReinstall.hs
• hadrian/src/Rules/Compile.hs
• hadrian/src/Rules/Documentation.hs
• hadrian/src/Rules/Generate.hs
• hadrian/src/Rules/Gmp.hs
• hadrian/src/Rules/Libffi.hs
• hadrian/src/Rules/Library.hs
• hadrian/src/Rules/Lint.hs
• hadrian/src/Rules/Program.hs
• hadrian/src/Rules/Register.hs
• hadrian/src/Rules/Rts.hs
• hadrian/src/Rules/SourceDist.hs
• hadrian/src/Rules/Test.hs
• hadrian/src/Settings.hs
• hadrian/src/Settings/Builders/Cabal.hs
• hadrian/src/Settings/Builders/Common.hs
• hadrian/src/Settings/Builders/Configure.hs
• hadrian/src/Settings/Builders/DeriveConstants.hs
• hadrian/src/Settings/Builders/Ghc.hs
• hadrian/src/Settings/Builders/Hsc2Hs.hs
• hadrian/src/Settings/Builders/RunTest.hs
• hadrian/src/Settings/Builders/SplitSections.hs
• hadrian/src/Settings/Default.hs
• hadrian/src/Settings/Flavours/Benchmark.hs
• hadrian/src/Settings/Flavours/Development.hs
• hadrian/src/Settings/Flavours/GhcInGhci.hs
• hadrian/src/Settings/Flavours/Performance.hs
• hadrian/src/Settings/Flavours/Quick.hs
• hadrian/src/Settings/Flavours/QuickCross.hs
• hadrian/src/Settings/Flavours/Quickest.hs
• hadrian/src/Settings/Flavours/Validate.hs
• hadrian/src/Settings/Packages.hs
• hadrian/src/Settings/Program.hs
• hadrian/src/Settings/Warnings.hs
• − libffi-tarballs
• libraries/base/base.cabal.in
• libraries/base/changelog.md
• libraries/base/src/Data/Bifoldable1.hs
• libraries/base/src/GHC/Conc.hs
• libraries/base/src/GHC/Conc/Sync.hs
• − libraries/base/src/GHC/JS/Prim/Internal/Build.hs
• libraries/base/tests/IO/T12010/cbits/initWinSock.c
• libraries/base/tests/IO/all.T
• libraries/base/tests/all.T
• libraries/ghc-internal/cbits/consUtils.c
• libraries/ghc-internal/configure.ac
• libraries/ghc-internal/ghc-internal.cabal.in
• libraries/ghc-internal/src/GHC/Internal/Conc/IO.hs
• libraries/ghc-internal/src/GHC/Internal/Conc/POSIX.hs
• libraries/ghc-internal/src/GHC/Internal/Conc/Sync.hs
• libraries/ghc-internal/src/GHC/Internal/Conc/Sync.hs-boot
• libraries/ghc-internal/src/GHC/Internal/Conc/Windows.hs
• libraries/ghc-internal/src/GHC/Internal/ConsoleHandler.hsc
• libraries/ghc-internal/src/GHC/Internal/Event/Thread.hs
• libraries/ghc-internal/src/GHC/Internal/Event/Windows/Thread.hs
• libraries/ghc-internal/src/GHC/Internal/IO/Handle.hs
• + libraries/ghc-internal/src/GHC/Internal/STM.hs
• libraries/ghc-internal/src/GHC/Internal/System/Environment/ExecutablePath.hsc
• libraries/ghc-platform/src/GHC/Platform/ArchOS.hs
• + libraries/libffi-clib
• libraries/mtl
• m4/fp_find_nm.m4
• m4/fptools_set_platform_vars.m4
• m4/ghc_select_file_extensions.m4
• m4/prep_target_file.m4
• packages
• rts/RtsFlags.c
• rts/StgMiscClosures.cmm
• rts/include/rts/ghc_ffi.h
• rts/rts.buildinfo.in
• rts/rts.cabal
• testsuite/driver/perf_notes.py
• testsuite/driver/runtests.py
• testsuite/driver/testglobals.py
• testsuite/driver/testlib.py
• testsuite/ghc-config/ghc-config.hs
• testsuite/mk/test.mk
• + testsuite/tests/dmdanal/should_run/T26748.hs
• + testsuite/tests/dmdanal/should_run/T26748.stdout
• testsuite/tests/dmdanal/should_run/all.T
• − testsuite/tests/driver/T24731.hs
• testsuite/tests/driver/all.T
• testsuite/tests/ghc-e/should_fail/all.T
• 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/javascript/closure/all.T
• testsuite/tests/rts/linker/rdynamic.hs
• testsuite/tests/simplCore/should_compile/T14003.stderr
• testsuite/tests/simplCore/should_compile/T18013.stderr
• testsuite/tests/simplCore/should_compile/T19672.stderr
• testsuite/tests/simplCore/should_compile/T21763.stderr
• testsuite/tests/simplCore/should_compile/T21763a.stderr
• + testsuite/tests/simplCore/should_compile/T26615.hs
• + testsuite/tests/simplCore/should_compile/T26615.stderr
• + testsuite/tests/simplCore/should_compile/T26615a.hs
• + testsuite/tests/simplCore/should_compile/T26682.hs
• + testsuite/tests/simplCore/should_compile/T26682a.hs
• + testsuite/tests/simplCore/should_compile/T26722.hs
• + testsuite/tests/simplCore/should_compile/T26722.stderr
• testsuite/tests/simplCore/should_compile/T4908.stderr
• testsuite/tests/simplCore/should_compile/all.T
• testsuite/tests/simplCore/should_compile/spec-inline.stderr
• utils/ghc-pkg/Main.hs
• − utils/iserv/iserv.cabal.in
• − utils/iserv/src/Main.hs

The diff was not included because it is too large.