Cheng Shao pushed to branch wip/bytecode-serialize-3 at Glasgow Haskell Compiler / GHC

Commits:

• f0a19d74
  by fendor at 2025-08-20T19:55:00-04:00

  Remove deprecated functions from the ghci package
  

• ebeb991b
  by fendor at 2025-08-20T19:55:00-04:00

  base: Remove unstable heap representation details from GHC.Exts
  

• e368e247
  by Rodrigo Mesquita at 2025-08-20T19:55:42-04:00

  bytecode: Use 32bits for breakpoint index
  
  Fixes #26325
  

• 42724462
  by Simon Hengel at 2025-08-21T17:52:11-04:00

  Serialize wired-in names as external names when creating HIE files
  
  Note that the domain of de-serialized names stays the same.
  Specifically, for known-key names, before `lookupKnownKeyName` was used,
  while now this is handled by `lookupOrigNameCache` which captures the
  same range provided that the OrigNameCache has been initialized with
  `knownKeyNames` (which is the case by default).
  
  (fixes #26238)
  

• 6a43f8ec
  by Cheng Shao at 2025-08-21T17:52:52-04:00

  compiler: fix closure C type in SPT init code
  
  This patch fixes the closure C type in SPT init code to StgClosure,
  instead of the previously incorrect StgPtr. Having an incorrect C type
  makes SPT init code not compatible with other foreign stub generation
  logic, which may also emit their own extern declarations for the same
  closure symbols and thus will clash with the incorrect prototypes in
  SPT init code.
  

• 5b5d9d47
  by Ben Gamari at 2025-08-25T14:29:35-04:00

  Revert "STM: don't create a transaction in the rhs of catchRetry# (#26028)"
  
  This reverts commit 0a5836891ca29836a24c306d2a364c2e4b5377fd

• 10f06163
  by Cheng Shao at 2025-08-25T14:30:16-04:00

  wasm: ensure setKeepCAFs() is called in ghci
  
  This patch is a critical bugfix for #26106, see comment and linked
  issue for details.
  

• bedc1004
  by Cheng Shao at 2025-08-26T09:31:18-04:00

  compiler: use zero cost coerce in hoopl setElems/mapToList
  
  This patch is a follow-up of !14680 and changes setElems/mapToList in
  GHC/Cmm/Dataflow/Label to use coerce instead of mapping mkHooplLabel
  over the keys.
  

• 13250d97
  by Ryan Scott at 2025-08-26T09:31:59-04:00

  Reject infix promoted data constructors without DataKinds
  
  In the rename, make sure to apply the same `DataKinds` checks for both
  `HsTyVar` (for prefix promoted data constructors) and `HsOpTy` (for infix
  promoted data constructors) alike.
  
  Fixes #26318.
  

• 37655c46
  by Teo Camarasu at 2025-08-26T15:24:51-04:00

  tests: disable T22859 under LLVM
  
  This test was failing under the LLVM backend since the allocations
  differ from the NCG.
  
  Resolves #26282
  

• 2cbba9d6
  by Teo Camarasu at 2025-08-26T15:25:33-04:00

  base-exports: update version numbers
  
  As the version of the compiler has been bumped, a lot of the embedded
  version numbers will need to be updated if we ever run this test with
  `--test-accept` so let's just update them now, and keep future diffs
  clean.
  

• f9f2ffcf
  by Alexandre Esteves at 2025-08-27T07:19:14-04:00

  Import new name for 'utimbuf' on windows to fix #26337
  
  Fixes an `-Wincompatible-pointer-types` instance that turns into an error on
  recent toolchains and surfaced as such on nixpkgs when doing linux->ucrt cross.
  
  This long-standing warning has been present at least since 9.4:
  
  ```
  C:\GitLabRunner\builds\0\1709189\tmp\ghc16652_0\ghc_4.c:26:115: error:
       warning: incompatible pointer types passing 'struct utimbuf *' to parameter of type 'struct _utimbuf *' [-Wincompatible-pointer-types]
     |
  26 | HsInt32 ghczuwrapperZC9ZCbaseZCSystemziPosixziInternalsZCzuutime(char* a1, struct utimbuf* a2) {return _utime(a1, a2);}
  
     |                                                                                                                   ^
  HsInt32 ghczuwrapperZC9ZCbaseZCSystemziPosixziInternalsZCzuutime(char* a1, struct utimbuf* a2) {return _utime(a1, a2);}
                                                                                                                    ^~
  
  C:\GitLabRunner\builds\0\1709189\_build\stage0\lib\..\..\mingw\x86_64-w64-mingw32\include\sys\utime.h:109:72: error:
       note: passing argument to parameter '_Utimbuf' here
      |
  109 | __CRT_INLINE int __cdecl _utime(const char *_Filename,struct _utimbuf *_Utimbuf) {
      |                                                                        ^
  __CRT_INLINE int __cdecl _utime(const char *_Filename,struct _utimbuf *_Utimbuf) {
  ```
  

• ae89f000
  by Hassan Al-Awwadi at 2025-08-27T07:19:56-04:00

  Adds the fucnction addDependentDirectory to Q, resolving issue #26148.
  
  This function adds a new directory to the list of things a module depends upon. That means that when the contents of the directory change, the recompilation checker will notice this and the module will be recompiled. Documentation has also been added for addDependentFunction and addDependentDirectory in the user guide.
  

• 00478944
  by Simon Peyton Jones at 2025-08-27T16:48:30+01:00

  Comments only
  

• a7884589
  by Simon Peyton Jones at 2025-08-28T11:08:23+01:00

  Type-family occurs check in unification
  
  The occurs check in `GHC.Core.Unify.uVarOrFam` was inadequate in dealing
  with type families.
  
  Better now.  See Note [The occurs check in the Core unifier].
  
  As I did this I realised that the whole apartness thing is trickier than I
  thought: see the new Note [Shortcomings of the apartness test]
  

• 8adfc222
  by sheaf at 2025-08-28T19:47:17-04:00

  Fix orientation in HsWrapper composition (<.>)
  
  This commit fixes the order in which WpCast HsWrappers are composed,
  fixing a bug introduced in commit 56b32c5a2d5d7cad89a12f4d74dc940e086069d1.
  
  Fixes #26350
  

• eb2ab1e2
  by Oleg Grenrus at 2025-08-29T11:00:53-04:00

  Generalise thNameToGhcName by adding HasHscEnv
  
  There were multiple single monad-specific `getHscEnv` across codebase.
  HasHscEnv is modelled on HasDynFlags.
  
  My first idea was to simply add thNameToGhcNameHsc and
  thNameToGhcNameTc, but those would been exactly the same
  as thNameToGhcName already.
  
  Also add an usage example to thNameToGhcName and mention that it's
  recommended way of looking up names in GHC plugins
  

• 2d575a7f
  by fendor at 2025-08-29T11:01:36-04:00

  configure: Bump minimal bootstrap GHC version to 9.10
  

• 716274a5
  by Simon Peyton Jones at 2025-08-29T17:27:12-04:00

  Fix deep subsumption again
  
  This commit fixed #26255:
  
      commit 56b32c5a2d5d7cad89a12f4d74dc940e086069d1
      Author: sheaf <sam.derbyshire@gmail.com>
      Date:   Mon Aug 11 15:50:47 2025 +0200
  
          Improve deep subsumption
  
          This commit improves the DeepSubsumption sub-typing implementation
          in GHC.Tc.Utils.Unify.tc_sub_type_deep by being less eager to fall back
          to unification.
  
  But alas it still wasn't quite right for view patterns: #26331
  
  This MR does a generalisation to fix it.  A bit of a sledgehammer to crack
  a nut, but nice.
  
  * Add a field `ir_inst :: InferInstFlag` to `InferResult`, where
    ```
    data InferInstFlag = IIF_Sigma | IIF_ShallowRho | IIF_DeepRho
    ```
  
  * The flag says exactly how much `fillInferResult` should instantiate
    before filling the hole.
  
  * We can also use this to replace the previous very ad-hoc `tcInferSigma`
    that was used to implement GHCi's `:type` command.
  

• 27206c5e
  by sheaf at 2025-08-29T17:28:14-04:00

  Back-compat for TH SpecialiseP data-con of Pragma
  
  This commit improves the backwards-compatibility story for the
  SpecialiseP constructor of the Template Haskell 'Pragma' datatype.
  
  Instead of keeping the constructor but deprecating it, this commit makes
  it into a bundled pattern synonym of the Pragma datatype. We no longer
  deprecate it; it's useful for handling old-form specialise pragmas.
  

• 26dbcf61
  by fendor at 2025-08-30T05:10:08-04:00

  Move stack decoding logic from ghc-heap to ghc-internal
  
  The stack decoding logic in `ghc-heap` is more sophisticated than the one
  currently employed in `CloneStack`. We want to use the stack decoding
  implementation from `ghc-heap` in `base`.
  We cannot simply depend on `ghc-heap` in `base` due do bootstrapping
  issues.
  Thus, we move the code that is necessary to implement stack decoding to
  `ghc-internal`. This is the right location, as we don't want to add a
  new API to `base`.
  
  Moving the stack decoding logic and re-exposing it in ghc-heap is
  insufficient, though, as we have a dependency cycle between.
  
  * ghc-heap depends on stage1:ghc-internal
  * stage0:ghc depends on stage0:ghc-heap
  
  To fix this, we remove ghc-heap from the set of `stage0` dependencies.
  
  This is not entirely straight-forward, as a couple of boot dependencies,
  such as `ghci` depend on `ghc-heap`.
  Luckily, the boot compiler of GHC is now >=9.10, so we can migrate `ghci`
  to use `ghc-internal` instead of `ghc-heap`, which already exports the
  relevant modules.
  
  However, we cannot 100% remove ghc's dependency on `ghc-heap`, since
  when we compile `stage0:ghc`, `stage1:ghc-internal` is not yet
  available.
  Thus, when we compile with the boot-compiler, we still depend on an
  older version of `ghc-heap`, and only use the modules from `ghc-internal`,
  if the `ghc-internal` version is recent enough.
  
  -------------------------
  Metric Increase:
      T24602_perf_size
      T25046_perf_size_gzip
      T25046_perf_size_unicode
      T25046_perf_size_unicode_gzip
      size_hello_artifact
      size_hello_artifact_gzip
      size_hello_unicode
      size_hello_unicode_gzip
  -------------------------
  
  These metric increases are unfortunate, they are most likely caused by
  the larger (literally in terms of lines of code) stack decoder implementation
  that are now linked into hello-word binaries.
  
  On linux, it is almost a 10% increase, which is considerable.
  

• bd80bb70
  by fendor at 2025-08-30T05:10:08-04:00

  Implement `decode` in terms of `decodeStackWithIpe`
  
  Uses the more efficient stack decoder implementation.
  

• 24441165
  by fendor at 2025-08-30T05:10:08-04:00

  Remove stg_decodeStackzh
  

• fb9cc882
  by Simon Peyton Jones at 2025-08-30T05:10:51-04:00

  Fix a long standing bug in the coercion optimiser
  
  We were mis-optimising ForAllCo, leading to #26345
  
  Part of the poblem was the tricky tower of abstractions leading to
  the dreadful
     GHC.Core.TyCo.Subst.substForAllCoTyVarBndrUsing
  This function was serving two masters: regular substitution, but also
  coercion optimsation.  So tricky was it that it did so wrong.
  
  In this MR I locate all the fancy footwork for coercion optimisation
  in GHC.Core.Coercion.Opt, where it belongs.   That leaves substitution
  free to be much simpler.
  

• 6c78de2d
  by Sylvain Henry at 2025-09-01T08:46:19-04:00

  Driver: substitute virtual Prim module in --make mode too
  
  When we build ghc-internal with --make (e.g. with cabal-install), we
  need to be careful to substitute the virtual interface file for
  GHC.Internal.Prim:
  - after code generation (we generate code for an empty module, so we get
    an empty interface)
  - when we try to reload its .hi file
  

• 26e0db16
  by fendor at 2025-09-01T08:47:01-04:00

  Expose Stack Annotation frames in IPE backtraces by default
  
  When decoding the Haskell-native call stack and displaying the IPE information
  for the stack frames, we print the `StackAnnotation` of the `AnnFrame` by default.
  
  This means, when an exception is thrown, any intermediate stack annotations will
  be displayed in the `IPE Backtrace`.
  
  Example backtrace:
  ```
  Exception: ghc-internal:GHC.Internal.Exception.ErrorCall:
  
  Oh no!
  
  IPE backtrace:
    annotateCallStackIO, called at app/Main.hs:48:10 in backtrace-0.1.0.0-inplace-server:Main
    annotateCallStackIO, called at app/Main.hs:46:13 in backtrace-0.1.0.0-inplace-server:Main
    Main.handler (app/Main.hs:(46,1)-(49,30))
    Main.liftIO (src/Servant/Server/Internal/Handler.hs:30:36-42)
    Servant.Server.Internal.Delayed.runHandler' (src/Servant/Server/Internal/Handler.hs:27:31-41)
    Control.Monad.Trans.Resource.runResourceT (./Control/Monad/Trans/Resource.hs:(192,14)-(197,18))
    Network.Wai.Handler.Warp.HTTP1.processRequest (./Network/Wai/Handler/Warp/HTTP1.hs:195:20-22)
    Network.Wai.Handler.Warp.HTTP1.processRequest (./Network/Wai/Handler/Warp/HTTP1.hs:(195,5)-(203,31))
    Network.Wai.Handler.Warp.HTTP1.http1server.loop (./Network/Wai/Handler/Warp/HTTP1.hs:(141,9)-(157,42))
  HasCallStack backtrace:
    error, called at app/Main.hs:48:32 in backtrace-0.1.0.0-inplace-server:Main
  ```
  
  The first two entries have been added by `annotateCallStackIO`, defined in `annotateCallStackIO`.
  

• a1567efd
  by Sylvain Henry at 2025-09-01T23:01:35-04:00

  RTS: rely less on Hadrian for flag setting (#25843)
  
  Hadrian used to pass -Dfoo command-line flags directly to build the rts.
  We can replace most of these flags with CPP based on cabal flags.
  It makes building boot libraries with cabal-install simpler (cf #25843).
  

• ca5b0283
  by Sergey Vinokurov at 2025-09-01T23:02:23-04:00

  Remove unnecessary irrefutable patterns from Bifunctor instances for tuples
  
  Implementation of https://github.com/haskell/core-libraries-committee/issues/339
  
  Metric Decrease:
      mhu-perf
  

• 2da84b7a
  by sheaf at 2025-09-01T23:03:23-04:00

  Only use active rules when simplifying rule RHSs
  
  When we are simplifying the RHS of a rule, we make sure to only apply
  rewrites from rules that are active throughout the original rule's
  range of active phases.
  
  For example, if a rule is always active, we only fire rules that are
  themselves always active when simplifying the RHS. Ditto for inline
  activations.
  
  This is achieved by setting the simplifier phase to a range of phases,
  using the new SimplPhaseRange constructor. Then:
  
    1. When simplifying the RHS of a rule, or of a stable unfolding,
       we set the simplifier phase to a range of phases, computed from
       the activation of the RULE/unfolding activation, using the
       function 'phaseFromActivation'.
  
       The details are explained in Note [What is active in the RHS of a RULE?]
       in GHC.Core.Opt.Simplify.Utils.
  
    2. The activation check for other rules and inlinings is then:
       does the activation of the other rule/inlining cover the whole
       phase range set in sm_phase? This continues to use the 'isActive'
       function, which now accounts for phase ranges.
  
  On the way, this commit also moves the exact-print SourceText annotation
  from the Activation datatype to the ActivationAnn type. This keeps the
  main Activation datatype free of any extra cruft.
  
  Fixes #26323
  

• 79816cc4
  by Rodrigo Mesquita at 2025-09-02T12:19:59-04:00

  cleanup: Move dehydrateCgBreakInfo to Stg2Bc
  
  This no longer has anything to do with Core.
  

• 53da94ff
  by Rodrigo Mesquita at 2025-09-02T12:19:59-04:00

  rts/Disassembler: Fix spacing of BRK_FUN
  

• 08c0cf85
  by Rodrigo Mesquita at 2025-09-02T12:19:59-04:00

  debugger: Fix bciPtr in Step-out
  
  We need to use `BCO_NEXT` to move bciPtr to ix=1, because ix=0 points to
  the instruction itself!
  
  I do not understand how this didn't crash before.
  

• e7e021fa
  by Rodrigo Mesquita at 2025-09-02T12:19:59-04:00

  debugger: Allow BRK_FUNs to head case continuation BCOs
  
  When we start executing a BCO, we may want to yield to the scheduler:
  this may be triggered by a heap/stack check, context switch, or a
  breakpoint. To yield, we need to put the stack in a state such that
  when execution is resumed we are back to where we yielded from.
  
  Previously, a BKR_FUN could only head a function BCO because we only
  knew how to construct a valid stack for yielding from one -- simply add
  `apply_interp_info` + the BCO to resume executing. This is valid because
  the stack at the start of run_BCO is headed by that BCO's arguments.
  
  However, in case continuation BCOs (as per Note [Case continuation BCOs]),
  we couldn't easily reconstruct a valid stack that could be resumed
  because we dropped too soon the stack frames regarding the value
  returned (stg_ret) and received (stg_ctoi) by that continuation.
  This is especially tricky because of the variable type and size return
  frames (e.g. pointer ret_p/ctoi_R1p vs a tuple ret_t/ctoi_t2).
  
  The trick to being able to yield from a BRK_FUN at the start of a case
  cont BCO is to stop removing the ret frame headers eagerly and instead
  keep them until the BCO starts executing. The new layout at the start of
  a case cont. BCO is described by the new Note [Stack layout when entering run_BCO].
  
  Now, we keep the ret_* and ctoi_* frames when entering run_BCO.
  A BRK_FUN is then executed if found, and the stack is yielded as-is with
  the preserved ret and ctoi frames.
  Then, a case cont BCO's instructions always SLIDE off the headers of the
  ret and ctoi frames, in StgToByteCode.doCase, turning a stack like
  
     |     ....      |
     +---------------+
     |     fv2       |
     +---------------+
     |     fv1       |
     +---------------+
     |     BCO       |
     +---------------+
     | stg_ctoi_ret_ |
     +---------------+
     |    retval     |
     +---------------+
     | stg_ret_..... |
     +---------------+
  
  into
  
     |     ....      |
     +---------------+
     |     fv2       |
     +---------------+
     |     fv1       |
     +---------------+
     |    retval     |
     +---------------+
  
  for the remainder of the BCO.
  
  Moreover, this more uniform approach of keeping the ret and ctoi frames
  means we need less ad-hoc logic concerning the variable size of
  ret_tuple vs ret_p/np frames in the code generator and interpreter:
  Always keep the return to cont. stack intact at the start of run_BCO,
  and the statically generated instructions will take care of adjusting
  it.
  
  Unlocks BRK_FUNs at the start of case cont. BCOs which will enable a
  better user-facing step-out (#26042) which is free of the bugs the
  current BRK_ALTS implementation suffers from (namely, using BRK_FUN
  rather than BRK_ALTS in a case cont. means we'll never accidentally end
  up in a breakpoint "deeper" than the continuation, because we stop at
  the case cont itself rather than on the first breakpoint we evaluate
  after it).
  

• ade3c1e6
  by Rodrigo Mesquita at 2025-09-02T12:19:59-04:00

  BRK_FUN with InternalBreakLocs for code-generation time breakpoints
  
  At the start of a case continuation BCO, place a BRK_FUN.
  This BRK_FUN uses the new "internal breakpoint location" -- allowing us
  to come up with a valid source location for this breakpoint that is not associated with a source-level tick.
  
  For case continuation BCOs, we use the last tick seen before it as the
  source location. The reasoning is described in Note [Debugger: Stepout internal break locs].
  
  Note how T26042c, which was broken because it displayed the incorrect
  behavior of the previous step out when we'd end up at a deeper level
  than the one from which we initiated step-out, is now fixed.
  
  As of this commit, BRK_ALTS is now dead code and is thus dropped.
  
  Note [Debugger: Stepout internal break locs]
  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  Step-out tells the interpreter to run until the current function
  returns to where it was called from, and stop there.
  
  This is achieved by enabling the BRK_FUN found on the first RET_BCO
  frame on the stack (See [Note Debugger: Step-out]).
  
  Case continuation BCOs (which select an alternative branch) must
  therefore be headed by a BRK_FUN. An example:
  
      f x = case g x of <--- end up here
          1 -> ...
          2 -> ...
  
      g y = ... <--- step out from here
  
  - `g` will return a value to the case continuation BCO in `f`
  - The case continuation BCO will receive the value returned from g
  - Match on it and push the alternative continuation for that branch
  - And then enter that alternative.
  
  If we step-out of `g`, the first RET_BCO on the stack is the case
  continuation of `f` -- execution should stop at its start, before
  selecting an alternative. (One might ask, "why not enable the breakpoint
  in the alternative instead?", because the alternative continuation is
  only pushed to the stack *after* it is selected by the case cont. BCO)
  
  However, the case cont. BCO is not associated with any source-level
  tick, it is merely the glue code which selects alternatives which do
  have source level ticks. Therefore, we have to come up at code
  generation time with a breakpoint location ('InternalBreakLoc') to
  display to the user when it is stopped there.
  
  Our solution is to use the last tick seen just before reaching the case
  continuation. This is robust because a case continuation will thus
  always have a relevant breakpoint location:
  
      - The source location will be the last source-relevant expression
        executed before the continuation is pushed
  
      - So the source location will point to the thing you've just stepped
        out of
  
      - Doing :step-local from there will put you on the selected
        alternative (which at the source level may also be the e.g. next
        line in a do-block)
  
  Examples, using angle brackets (<<...>>) to denote the breakpoint span:
  
      f x = case <<g x>> {- step in here -} of
          1 -> ...
          2 -> ...>
  
      g y = <<...>> <--- step out from here
  
      ...
  
      f x = <<case g x of <--- end up here, whole case highlighted
          1 -> ...
          2 -> ...>>
  
      doing :step-local ...
  
      f x = case g x of
          1 -> <<...>> <--- stop in the alternative
          2 -> ...
  
  A second example based on T26042d2, where the source is a do-block IO
  action, optimised to a chain of `case expressions`.
  
      main = do
        putStrLn "hello1"
        <<f>> <--- step-in here
        putStrLn "hello3"
        putStrLn "hello4"
  
      f = do
        <<putStrLn "hello2.1">> <--- step-out from here
        putStrLn "hello2.2"
  
      ...
  
      main = do
        putStrLn "hello1"
        <<f>> <--- end up here again, the previously executed expression
        putStrLn "hello3"
        putStrLn "hello4"
  
      doing step/step-local ...
  
      main = do
        putStrLn "hello1"
        f
        <<putStrLn "hello3">> <--- straight to the next line
        putStrLn "hello4"
  
  Finishes #26042
  

• c66910c0
  by Rodrigo Mesquita at 2025-09-02T12:19:59-04:00

  debugger: Re-use the last BreakpointId whole in step-out
  
  Previously, to come up with a location to stop at for `:stepout`, we
  would store the location of the last BreakpointId surrounding the
  continuation, as described by Note [Debugger: Stepout internal break locs].
  
  However, re-using just the location from the last source breakpoint
  isn't sufficient to provide the necessary information in the break
  location. Specifically, it wouldn't bind any variables at that location.
  
  Really, there is no reason not to re-use the last breakpoint wholesale,
  and re-use all the information we had there. Step-out should behave just
  as if we had stopped at the call, but s.t. continuing will not
  re-execute the call.
  
  This commit updates the CgBreakInfo to always store a BreakpointId, be
  it the original one or the one we're emulating (for step-out).
  
  It makes variable bindings on :stepout work
  

• e4abed7b
  by sheaf at 2025-09-02T12:20:40-04:00

  Revert accidental changes to hie.yaml

• 52ab84a6
  by Cheng Shao at 2025-09-02T18:23:04+02:00

  compiler: implement and test bytecode serialization logic
  

216 changed files:

• .gitlab-ci.yml
• compiler/GHC/Builtin/PrimOps.hs
• compiler/GHC/ByteCode/Asm.hs
• compiler/GHC/ByteCode/Breakpoints.hs
• compiler/GHC/ByteCode/Instr.hs
• + compiler/GHC/ByteCode/Serialize.hs
• compiler/GHC/ByteCode/Types.hs
• compiler/GHC/Cmm/Dataflow/Label.hs
• compiler/GHC/Core/Coercion.hs
• compiler/GHC/Core/Coercion/Opt.hs
• compiler/GHC/Core/Opt/Monad.hs
• compiler/GHC/Core/Opt/Pipeline/Types.hs
• compiler/GHC/Core/Opt/Simplify/Env.hs
• compiler/GHC/Core/Opt/Simplify/Inline.hs
• compiler/GHC/Core/Opt/Simplify/Iteration.hs
• compiler/GHC/Core/Opt/Simplify/Utils.hs
• compiler/GHC/Core/Opt/Specialise.hs
• compiler/GHC/Core/Opt/WorkWrap.hs
• compiler/GHC/Core/Rules.hs
• compiler/GHC/Core/TyCo/Compare.hs
• compiler/GHC/Core/TyCo/Subst.hs
• compiler/GHC/Core/Type.hs
• compiler/GHC/Core/Unify.hs
• compiler/GHC/CoreToIface.hs
• compiler/GHC/Data/FlatBag.hs
• compiler/GHC/Data/SmallArray.hs
• compiler/GHC/Driver/Config/Core/Lint.hs
• compiler/GHC/Driver/Config/Core/Opt/Simplify.hs
• compiler/GHC/Driver/Downsweep.hs
• compiler/GHC/Driver/Env.hs
• compiler/GHC/Driver/Env/Types.hs
• compiler/GHC/Driver/Main.hs
• compiler/GHC/Driver/Make.hs
• compiler/GHC/Driver/Pipeline.hs
• compiler/GHC/Hs/Binds.hs
• compiler/GHC/HsToCore/Breakpoints.hs
• compiler/GHC/HsToCore/Quote.hs
• compiler/GHC/HsToCore/Usage.hs
• compiler/GHC/Iface/Ext/Binary.hs
• compiler/GHC/Iface/Ext/Types.hs
• compiler/GHC/Iface/Load.hs
• compiler/GHC/Iface/Make.hs
• compiler/GHC/Iface/Recomp.hs
• compiler/GHC/Iface/Recomp/Types.hs
• compiler/GHC/Iface/Tidy/StaticPtrTable.hs
• compiler/GHC/Linker/Loader.hs
• compiler/GHC/Parser.y
• compiler/GHC/Plugins.hs
• compiler/GHC/Rename/HsType.hs
• compiler/GHC/Runtime/Debugger/Breakpoints.hs
• compiler/GHC/Runtime/Eval.hs
• compiler/GHC/Runtime/Heap/Inspect.hs
• compiler/GHC/StgToByteCode.hs
• compiler/GHC/Tc/Deriv/Generics.hs
• compiler/GHC/Tc/Gen/App.hs
• compiler/GHC/Tc/Gen/Bind.hs
• compiler/GHC/Tc/Gen/Expr.hs
• compiler/GHC/Tc/Gen/Expr.hs-boot
• compiler/GHC/Tc/Gen/Head.hs
• compiler/GHC/Tc/Gen/HsType.hs
• compiler/GHC/Tc/Gen/Match.hs
• compiler/GHC/Tc/Gen/Pat.hs
• compiler/GHC/Tc/Gen/Splice.hs
• compiler/GHC/Tc/Module.hs
• compiler/GHC/Tc/Types.hs
• compiler/GHC/Tc/Types/Evidence.hs
• compiler/GHC/Tc/Utils/Monad.hs
• compiler/GHC/Tc/Utils/TcMType.hs
• compiler/GHC/Tc/Utils/TcType.hs
• compiler/GHC/Tc/Utils/Unify.hs
• compiler/GHC/ThToHs.hs
• compiler/GHC/Types/Basic.hs
• compiler/GHC/Types/Id/Make.hs
• compiler/GHC/Types/Name/Cache.hs
• compiler/GHC/Types/SptEntry.hs
• compiler/GHC/Types/Tickish.hs
• compiler/GHC/Unit/Finder.hs
• compiler/GHC/Unit/Finder/Types.hs
• compiler/GHC/Unit/Module/Deps.hs
• compiler/GHC/Utils/Binary.hs
• compiler/ghc.cabal.in
• configure.ac
• docs/users_guide/9.16.1-notes.rst
• docs/users_guide/separate_compilation.rst
• ghc/GHCi/UI.hs
• hadrian/src/Rules/ToolArgs.hs
• hadrian/src/Settings/Default.hs
• hadrian/src/Settings/Packages.hs
• libraries/base/changelog.md
• libraries/base/src/Data/Bifunctor.hs
• libraries/base/src/GHC/Exts.hs
• libraries/base/src/GHC/Stack/CloneStack.hs
• libraries/ghc-boot-th/GHC/Boot/TH/Ppr.hs
• libraries/ghc-experimental/src/GHC/Stack/Annotation/Experimental.hs
• libraries/ghc-heap/GHC/Exts/Heap/ClosureTypes.hs
• libraries/ghc-heap/GHC/Exts/Heap/Closures.hs
• + libraries/ghc-heap/GHC/Exts/Heap/Constants.hs
• + libraries/ghc-heap/GHC/Exts/Heap/InfoTable.hs
• + libraries/ghc-heap/GHC/Exts/Heap/InfoTable/Types.hs
• + libraries/ghc-heap/GHC/Exts/Heap/InfoTableProf.hs
• libraries/ghc-heap/GHC/Exts/Heap/ProfInfo/Types.hs
• + libraries/ghc-heap/GHC/Exts/Stack/Constants.hs
• libraries/ghc-heap/GHC/Exts/Stack/Decode.hs
• libraries/ghc-heap/ghc-heap.cabal.in
• − libraries/ghc-heap/tests/stack-annotation/ann_frame004.stdout
• libraries/ghc-heap/cbits/HeapPrim.cmm → libraries/ghc-internal/cbits/HeapPrim.cmm
• libraries/ghc-heap/cbits/Stack.cmm → libraries/ghc-internal/cbits/Stack.cmm
• libraries/ghc-internal/cbits/StackCloningDecoding.cmm
• libraries/ghc-heap/cbits/Stack_c.c → libraries/ghc-internal/cbits/Stack_c.c
• libraries/ghc-internal/ghc-internal.cabal.in
• libraries/ghc-internal/jsbits/base.js
• libraries/ghc-internal/src/GHC/Internal/Exception/Backtrace.hs
• + libraries/ghc-internal/src/GHC/Internal/Heap/Closures.hs
• libraries/ghc-heap/GHC/Exts/Heap/Constants.hsc → libraries/ghc-internal/src/GHC/Internal/Heap/Constants.hsc
• libraries/ghc-heap/GHC/Exts/Heap/InfoTable.hsc → libraries/ghc-internal/src/GHC/Internal/Heap/InfoTable.hsc
• libraries/ghc-heap/GHC/Exts/Heap/InfoTable/Types.hsc → libraries/ghc-internal/src/GHC/Internal/Heap/InfoTable/Types.hsc
• libraries/ghc-heap/GHC/Exts/Heap/InfoTableProf.hsc → libraries/ghc-internal/src/GHC/Internal/Heap/InfoTableProf.hsc
• + libraries/ghc-internal/src/GHC/Internal/Heap/ProfInfo/Types.hs
• + libraries/ghc-internal/src/GHC/Internal/Stack/Annotation.hs
• libraries/ghc-internal/src/GHC/Internal/Stack/CloneStack.hs
• libraries/ghc-heap/GHC/Exts/Stack/Constants.hsc → libraries/ghc-internal/src/GHC/Internal/Stack/Constants.hsc
• + libraries/ghc-internal/src/GHC/Internal/Stack/Decode.hs
• libraries/ghc-internal/src/GHC/Internal/System/Posix/Internals.hs
• libraries/ghc-internal/src/GHC/Internal/TH/Syntax.hs
• libraries/ghc-heap/tests/stack-annotation/Makefile → libraries/ghc-internal/tests/stack-annotation/Makefile
• libraries/ghc-heap/tests/stack-annotation/TestUtils.hs → libraries/ghc-internal/tests/stack-annotation/TestUtils.hs
• libraries/ghc-heap/tests/stack-annotation/all.T → libraries/ghc-internal/tests/stack-annotation/all.T
• libraries/ghc-heap/tests/stack-annotation/ann_frame001.hs → libraries/ghc-internal/tests/stack-annotation/ann_frame001.hs
• libraries/ghc-heap/tests/stack-annotation/ann_frame001.stdout → libraries/ghc-internal/tests/stack-annotation/ann_frame001.stdout
• libraries/ghc-heap/tests/stack-annotation/ann_frame002.hs → libraries/ghc-internal/tests/stack-annotation/ann_frame002.hs
• libraries/ghc-heap/tests/stack-annotation/ann_frame002.stdout → libraries/ghc-internal/tests/stack-annotation/ann_frame002.stdout
• libraries/ghc-heap/tests/stack-annotation/ann_frame003.hs → libraries/ghc-internal/tests/stack-annotation/ann_frame003.hs
• libraries/ghc-heap/tests/stack-annotation/ann_frame003.stdout → libraries/ghc-internal/tests/stack-annotation/ann_frame003.stdout
• libraries/ghc-heap/tests/stack-annotation/ann_frame004.hs → libraries/ghc-internal/tests/stack-annotation/ann_frame004.hs
• + libraries/ghc-internal/tests/stack-annotation/ann_frame004.stdout
• libraries/ghci/GHCi/CreateBCO.hs
• libraries/ghci/GHCi/Message.hs
• libraries/ghci/GHCi/Run.hs
• libraries/ghci/GHCi/TH.hs
• libraries/ghci/ghci.cabal.in
• libraries/template-haskell/Language/Haskell/TH/Lib.hs
• libraries/template-haskell/Language/Haskell/TH/Syntax.hs
• libraries/template-haskell/changelog.md
• rts/CloneStack.c
• rts/CloneStack.h
• rts/Disassembler.c
• rts/Interpreter.c
• rts/PrimOps.cmm
• rts/Profiling.c
• rts/RaiseAsync.c
• rts/RtsMessages.c
• rts/RtsSymbols.c
• rts/RtsUtils.c
• rts/STM.c
• rts/Trace.c
• rts/include/rts/Bytecodes.h
• testsuite/.gitignore
• testsuite/tests/count-deps/CountDepsAst.stdout
• testsuite/tests/count-deps/CountDepsParser.stdout
• + testsuite/tests/driver/make-prim/GHC/Internal/Prim.hs
• + testsuite/tests/driver/make-prim/Makefile
• + testsuite/tests/driver/make-prim/Test.hs
• + testsuite/tests/driver/make-prim/Test2.hs
• + testsuite/tests/driver/make-prim/all.T
• testsuite/tests/ghci.debugger/scripts/T26042b.script
• testsuite/tests/ghci.debugger/scripts/T26042b.stdout
• testsuite/tests/ghci.debugger/scripts/T26042c.script
• testsuite/tests/ghci.debugger/scripts/T26042c.stdout
• + testsuite/tests/ghci.debugger/scripts/T26042d2.hs
• + testsuite/tests/ghci.debugger/scripts/T26042d2.script
• + testsuite/tests/ghci.debugger/scripts/T26042d2.stdout
• testsuite/tests/ghci.debugger/scripts/T26042e.stdout
• testsuite/tests/ghci.debugger/scripts/T26042f.script
• testsuite/tests/ghci.debugger/scripts/T26042f1.stdout
• testsuite/tests/ghci.debugger/scripts/T26042f2.stdout
• testsuite/tests/ghci.debugger/scripts/T26042g.stdout
• testsuite/tests/ghci.debugger/scripts/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/interface-stability/ghc-experimental-exports.stdout
• testsuite/tests/interface-stability/ghc-experimental-exports.stdout-mingw32
• testsuite/tests/interface-stability/template-haskell-exports.stdout
• − testsuite/tests/lib/stm/T26028.hs
• − testsuite/tests/lib/stm/T26028.stdout
• − testsuite/tests/lib/stm/all.T
• − testsuite/tests/module/T21752.stderr
• + testsuite/tests/patsyn/should_compile/T26331.hs
• + testsuite/tests/patsyn/should_compile/T26331a.hs
• testsuite/tests/patsyn/should_compile/all.T
• testsuite/tests/perf/compiler/T4007.stdout
• testsuite/tests/rts/all.T
• testsuite/tests/simplCore/should_compile/T15056.stderr
• testsuite/tests/simplCore/should_compile/T15445.stderr
• + testsuite/tests/simplCore/should_compile/T26323b.hs
• testsuite/tests/simplCore/should_compile/all.T
• + testsuite/tests/simplCore/should_run/T26323.hs
• + testsuite/tests/simplCore/should_run/T26323.stdout
• testsuite/tests/simplCore/should_run/all.T
• testsuite/tests/th/Makefile
• + testsuite/tests/th/TH_Depends_Dir.hs
• + testsuite/tests/th/TH_Depends_Dir.stdout
• + testsuite/tests/th/TH_Depends_Dir_External.hs
• testsuite/tests/th/all.T
• + testsuite/tests/typecheck/should_compile/T26345.hs
• + testsuite/tests/typecheck/should_compile/T26346.hs
• + testsuite/tests/typecheck/should_compile/T26350.hs
• + testsuite/tests/typecheck/should_compile/T26358.hs
• testsuite/tests/typecheck/should_compile/all.T
• + testsuite/tests/typecheck/should_fail/T26318.hs
• + testsuite/tests/typecheck/should_fail/T26318.stderr
• testsuite/tests/typecheck/should_fail/all.T
• utils/check-exact/ExactPrint.hs
• utils/haddock/haddock-api/src/Haddock/InterfaceFile.hs
• utils/jsffi/dyld.mjs

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