Sven Tennie pushed to branch wip/supersven/terminfo-not-on-stage0-for-cross at Glasgow Haskell Compiler / GHC

Commits:

• ba210d98
  by Simon Peyton Jones at 2025-09-08T16:26:36+01:00

  Report solid equality errors before custom errors
  
  This MR fixes #26255 by
  
  * Reporting solid equality errors like
       Int ~ Bool
    before "custom type errors".  See comments in `report1` in
    `reportWanteds`
  
  * Suppressing errors that arise from superclasses of
    Wanteds.  See (SCE1) in Note [Suppressing confusing errors]
  
  More details in #26255.
  

• b6249140
  by Simon Peyton Jones at 2025-09-10T10:42:38-04:00

  Fix a scoping error in Specialise
  
  This small patch fixes #26329, which triggered a scoping error.
  
  Test is in T21391, with -fpolymorphic-specialisation enabled
  

• 45305ab8
  by sheaf at 2025-09-10T10:43:29-04:00

  Make rationalTo{Float,Double} inline in phase 0
  
  We hold off on inlining these until phase 0 to allow constant-folding
  rules to fire. However, once we get to phase 0, we should inline them,
  e.g. to expose unboxing opportunities.
  
  See CLC proposal #356.
  

• 0959d4bc
  by Andreas Klebinger at 2025-09-10T10:44:12-04:00

  Add regression test for #26056
  

• dc79593d
  by sheaf at 2025-09-10T10:45:01-04:00

  Deep subsumption: unify mults without tcEqMult
  
  As seen in #26332, we may well end up with a non-reflexive multiplicity
  coercion when doing deep subsumption. We should do the same thing that
  we do without deep subsumption: unify the multiplicities normally,
  without requiring that the coercion is reflexive (which is what
  'tcEqMult' was doing).
  
  Fixes #26332
  

• 4bfe2269
  by sheaf at 2025-09-10T10:45:50-04:00

  lint-codes: fixup MSYS drive letter on Windows
  
  This change ensures that System.Directory.listDirectory doesn't trip up
  on an MSYS-style path like '/c/Foo' when trying to list all testsuite
  stdout/stderr files as required for testing coverage of GHC diagnostic
  codes in the testsuite.
  
  Fixes #25178
  

• 56540775
  by Ben Gamari at 2025-09-10T10:46:32-04:00

  gitlab-ci: Disable split sections on FreeBSD
  
  Due to #26303.
  

• 1537784b
  by Moritz Angermann at 2025-09-10T10:47:13-04:00

  Improve mach-o relocation information
  
  This change adds more information about the symbol and addresses
  we try to relocate in the linker.  This significantly helps when
  deubbging relocation issues reported by users.
  

• 4e67855b
  by Moritz Angermann at 2025-09-10T10:47:54-04:00

  test.mk expect GhcLeadingUnderscore, not LeadingUnderscore (in line with the other Ghc prefixed variables.
  

• c1cdd265
  by Moritz Angermann at 2025-09-10T10:48:35-04:00

  testsuite: Fix broken exec_signals_child.c
  
  There is no signal 0. The signal mask is 1-32.
  

• 99ac335c
  by Moritz Angermann at 2025-09-10T10:49:15-04:00

  testsuite: clarify Windows/Darwin locale rationale for skipping T6037 T2507 T8959a
  

• 0e8fa77a
  by Moritz Angermann at 2025-09-10T10:49:56-04:00

  Skip broken tests on macOS (due to leading underscore not handled properly in the expected output.)
  

• 28570c59
  by Zubin Duggal at 2025-09-10T10:50:37-04:00

  docs(sphinx): fix links to reverse flags when using the :ghc-flag:`-fno-<flag>` syntax
  
  This solution is rather hacky and I suspect there is a better way to do this but I don't know
  enough about Sphinx to do better.
  
  Fixes #26352
  

• d17257ed
  by Cheng Shao at 2025-09-10T17:01:27+02:00

  rel-eng: update alpine images to 3.22
  
  This patch is a part of #25876 and updates alpine images to 3.22,
  while still retaining 3.12 for x86_64 fully_static bindists.
  
  -------------------------
  Metric Decrease:
      MultiComponentModulesRecomp
  -------------------------
  

• db3276bb
  by Sylvain Henry at 2025-09-11T11:27:28-04:00

  T16180: indicate that the stack isn't executable
  

• 11eeeba7
  by Sylvain Henry at 2025-09-11T11:27:28-04:00

  Fix some tests (statically linked GHC vs libc)
  
  When GHC is linked statically, the stdout C global variable that GHC uses
  isn't shared with the stdout C global variable used by loaded code.
  
  As a consequence, the latter must be explicitly flushed because GHC
  won't flush it before exiting.
  

• 80a07571
  by Sylvain Henry at 2025-09-11T11:28:18-04:00

  Testsuite: fix debug_rts detection
  
  Running the testsuite without Hadrian should set config.debug_rts
  correctly too.
  

• 62ae97de
  by Duncan Coutts at 2025-09-12T13:23:33-04:00

  Handle heap allocation failure in I/O primops
  
  The current I/O managers do not use allocateMightFail, but future ones
  will. To support this properly we need to be able to return to the
  primop with a failure. We simply use a bool return value.
  
  Currently however, we will just throw an exception rather than calling
  the GC because that's what all the other primops do too.
  
  For the general issue of primops invoking GC and retrying, see
  https://gitlab.haskell.org/ghc/ghc/-/issues/24105
  

• cb9093f5
  by Duncan Coutts at 2025-09-12T13:23:33-04:00

  Move (and rename) scheduleStartSignalHandlers into RtsSignals.h
  
  Previously it was a local helper (static) function in Schedule.c.
  
  Rename it to startPendingSignalHandlers and deifine it as an inline
  header function in RtsSignals.h. So it should still be fast.
  
  Each (new style) I/O manager is going to need to do the same, so eliminating
  the duplication now makes sense.
  

• 9736d44a
  by Duncan Coutts at 2025-09-12T13:23:33-04:00

  Reduce detail in printThreadBlockage I/O blocking cases
  
  The printThreadBlockage is used in debug tracing output.
  For the cases BlockedOn{Read,Write,Delay} the output previously included
  the fd that was being waited on, and the delay target wake time.
  
  Superficially this sounds useful, but it's clearly not that useful
  because it was already wrong for the Win32 non-threaded I/O manager. In
  that situation it will print garbage (the async_result pointer, cast to
  a fd or a time).
  
  So given that it apparently never mattered that the information was
  accurate, then it's hardly a big jump to say it doesn't matter if it is
  present at all.
  
  A good reason to remove it is that otherwise we have to make a new
  API and a per-I/O manager implementation to fetch the information. And
  for some I/O manager implementations, this information is not available.
  It is not available in the win32 non-threaded I/O manager. And for some
  future Linux ones, there is no need for the fd to be stored, so storing
  it would be just extra space used for very little gain.
  
  So the simplest thing is to just remove the detail.
  

• bc0f2d5d
  by Duncan Coutts at 2025-09-12T13:23:33-04:00

  Add TimeoutQueue.{c,h} and corresponding tests
  
  A data structure used to efficiently manage a collection of timeouts.
  
  It is a priority queue based on absolute expiry time. It uses 64bit
  high-precision Time for the keys. The values are normal closures which
  allows for example using MVars for unblocking.
  
  It is common in many applications for timeouts to be created and then
  deleted or altered before they expire. Thus the choice of data structure
  for timeouts should support this efficiently. The implementation choice
  here is a leftist heap with the extra feature that it supports deleting
  arbitrary elements, provided the caller retain a pointer to the element.
  While the deleteMin operation takes O(log n) time, as in all heap
  structures, the delete operation for arbitrary elements /typically/
  takes O(1), and only O(log n) in the worst case. In practice, when
  managing thousands of timeouts it can be a factor of 10 faster to delete
  a random timeout queue element than to remove the minimum element. This
  supports the common use case.
  
  The plan is to use it in some of the RTS-side I/O managers to support
  their timer functionality. In this use case the heap value will be an
  MVar used for each timeout to unblock waiting threads.
  

• d1679c9d
  by Duncan Coutts at 2025-09-12T13:23:33-04:00

  Add ClosureTable.{c,h} and corresponding tests
  
  A table of pointers to closures on the GC heap with stable indexes.
  
  It provides O(1) alloc, free and lookup. The table can be expanded
  using a simple doubling strategy: in which case allocation is typically
  O(1) and occasionally O(n) for overall amortised O(1). No shrinking is
  used.
  
  The table itself is heap allocated, and points to other heap objects.
  As such it's necessary to use markClosureTable to ensure the table is
  used as a GC root to keep the table entries alive, and maintain proper
  pointers to them as the GC moves heap objects about.
  
  It is designed to be allocated and accesses exclusively from a single
  capability, enabling it to work without any locking. It is thus similar
  to the StablePtr table, but per-capability which removes the need for
  locking. It _should_ also provide lower GC pause times with the
  non-moving GC by spending only O(1) time in markClosureTable, vs O(n)
  for markStablePtrTable.
  
  The plan is to use it in some of the I/O managers to keep track of
  in-flight I/O operations (but not timers). This allows the tracking
  info to be kept on the (unpinned) GC heap, and shared with Haskell
  code, and by putting a pointer to the tracking information in a table,
  the index remains stable and can be passed via foreign code (like the
  kernel).
  

• 78cb8dd5
  by Duncan Coutts at 2025-09-12T13:23:33-04:00

  Add the StgAsyncIOOp closure type
  
  This is intended to be used by multiple I/O managers to help with
  tracking in-flight I/O operations.
  
  It is called asynchronous because from the point of view of the RTS we
  have many such operations in progress at once. From the point of view of
  a Haskell thread of course it can look synchronous.
  

• a2839896
  by Duncan Coutts at 2025-09-12T13:23:33-04:00

  Add StgAsyncIOOp and StgTimeoutQueue to tso->block_info
  
  These will be used by new I/O managers, for threads blocked on I/O or
  timeouts.
  

• fdc2451c
  by Duncan Coutts at 2025-09-12T13:23:33-04:00

  Add a new I/O manager based on poll()
  
  This is a proof of concept I/O manager, to show how to add new ones
  neatly, using the ClosureTable and TimeoutQueue infrastructure.
  
  It uses the old unix poll() API, so it is of course limited in
  performance by that, but it should have the benefit of wide
  compatibility. Also we neatly avoid a name clash with the existing
  select() I/O manager.
  
  Compared to the select() I/O manager:
  1. beause it uses poll() it is not limited to 1024 file descriptors
     (but it's still O(n) so don't expect great performance);
  2. it should have much faster threadDelay (when using it in lots of
     threads at once) because it's based on the new TimeoutQueue which is
     O(log n) rather than O(n).
  
  Some of the code related to timers/timouts is put into a shared module
  rts/posix/Timeout.{h,c} since it is intended to be shared with other
  similar I/O managers.
  

• 6c273b76
  by Duncan Coutts at 2025-09-12T13:23:34-04:00

  Document the I/O managers in the user guide
  
  and note the new poll I/O manager in the release notes.
  

• 824fab74
  by Duncan Coutts at 2025-09-12T13:23:34-04:00

  Use the poll() I/O manager by default
  
  That is, for the non-threaded RTS, prefer the poll I/O manager over the
  legacy select() one, if both can be enabled.
  
  This patch is primarily for CI testing, so we should probably remove
  this patch before merging. We can change defaults later after wider
  testing and feedback.
  

• 39392532
  by Luite Stegeman at 2025-09-12T13:24:16-04:00

  Support larger unboxed sums
  
  Change known constructor encoding for sums in interfaces to use
  11 bits for both the arity and the alternative (up from 8 and 6,
  respectively)
  

• 2af12e21
  by Luite Stegeman at 2025-09-12T13:24:16-04:00

  Decompose padding smallest-first in Cmm toplevel data constructors
  
  This makes each individual padding value aligned
  

• 418fa78f
  by Luite Stegeman at 2025-09-12T13:24:16-04:00

  Use slots smaller than word as tag for smaller unboxed sums
  
  This packs unboxed sums more efficiently by allowing
  Word8, Word16 and Word32 for the tag field if the number of
  constructors is small enough
  

• 8d7e912f
  by Rodrigo Mesquita at 2025-09-12T17:57:24-04:00

  ghc-toolchain: Use ByteOrder rather than new Endianness
  
  Don't introduce a duplicate datatype when the previous one is equivalent
  and already used elsewhere. This avoids unnecessary translation between
  the two.
  

• 7d378476
  by Rodrigo Mesquita at 2025-09-12T17:57:24-04:00

  Read Toolchain.Target files rather than 'settings'
  
  This commit makes GHC read `lib/targets/default.target`, a file with a
  serialized value of `ghc-toolchain`'s `GHC.Toolchain.Target`.
  
  Moreover, it removes all the now-redundant entries from `lib/settings`
  that are configured as part of a `Target` but were being written into
  `settings`.
  
  This makes it easier to support multiple targets from the same compiler
  (aka runtime retargetability). `ghc-toolchain` can be re-run many times
  standalone to produce a `Target` description for different targets, and,
  in the future, GHC will be able to pick at runtime amongst different
  `Target` files.
  
  This commit only makes it read the default `Target` configured in-tree
  or configured when installing the bindist.
  
  The remaining bits of `settings` need to be moved to `Target` in follow
  up commits, but ultimately they all should be moved since they are
  per-target relevant.
  
  Fixes #24212
  
  On Windows, the constant overhead of parsing a slightly more complex
  data structure causes some small-allocation tests to wiggle around 1 to
  2 extra MB (1-2% in these cases).
  
  -------------------------
  Metric Increase:
      MultiLayerModulesTH_OneShot
      T10421
      T10547
      T12234
      T12425
      T13035
      T18140
      T18923
      T9198
      TcPlugin_RewritePerf
  -------------------------
  

• e0780a16
  by Rodrigo Mesquita at 2025-09-12T17:57:24-04:00

  ghc-toolchain: Move TgtHasLibm to per-Target file
  
  TargetHasLibm is now part of the per-target configuration
  
  Towards #26227
  

• 8235dd8c
  by Rodrigo Mesquita at 2025-09-12T17:57:24-04:00

  ghc-toolchain: Move UseLibdw to per-Target file
  
  To support DWARF unwinding, the RTS must be built with the -f+libdw flag
  and with the -DUSE_LIBDW macro definition. These flags are passed on
  build by Hadrian when --enable-dwarf-unwinding is specified at configure
  time.
  
  Whether the RTS was built with support for DWARF is a per-target
  property, and as such, it was moved to the per-target
  GHC.Toolchain.Target.Target file.
  
  Additionally, we keep in the target file the include and library paths
  for finding libdw, since libdw should be checked at configure time (be
  it by configure, or ghc-toolchain, that libdw is properly available).
  
  Preserving the user-given include paths for libdw facilitates in the
  future building the RTS on demand for a given target (if we didn't keep
  that user input, we couldn't)
  
  Towards #26227
  

• d5ecf2e8
  by Rodrigo Mesquita at 2025-09-12T17:57:25-04:00

  ghc-toolchain: Make "Support SMP" a query on a Toolchain.Target
  
  "Support SMP" is merely a function of target, so we can represent it as
  such in `ghc-toolchain`.
  
  Hadrian queries the Target using this predicate to determine how to
  build GHC, and GHC queries the Target similarly to report under --info
  whether it "Support SMP"
  
  Towards #26227
  

• e07b031a
  by Rodrigo Mesquita at 2025-09-12T17:57:25-04:00

  ghc-toolchain: Make "tgt rts linker only supports shared libs" function on Target
  
  Just like with "Support SMP", "target RTS linker only supports shared
  libraries" is a predicate on a `Target` so we can just compute it when
  necessary from the given `Target`.
  
  Towards #26227
  

• 14123ee6
  by Simon Peyton Jones at 2025-09-12T17:58:07-04:00

  Solve forall-constraints via an implication, again
  
  In this earlier commit:
  
    commit 953fd8f1dc080f1c56e3a60b4b7157456949be29
    Author: Simon Peyton Jones <simon.peytonjones@gmail.com>
    Date:   Mon Jul 21 10:06:43 2025 +0100
  
    Solve forall-constraints immediately, or not at all
  
  I used a all-or-nothing strategy for quantified constraints
  (aka forall-constraints).  But alas that fell foul of #26315,
  and #26376.
  
  So this MR goes back to solving a quantified constraint by
  turning it into an implication; UNLESS we are simplifying
  constraints from a SPECIALISE pragma, in which case the
  all-or-nothing strategy is great.  See:
  
     Note [Solving a Wanted forall-constraint]
  
  Other stuff in this MR:
  
  * TcSMode becomes a record of flags, rather than an enumeration
    type; much nicer.
  
  * Some fancy footwork to avoid error messages worsening again
    (The above MR made them better; we want to retain that.)
    See `GHC.Tc.Errors.Ppr.pprQCOriginExtra`.
  
  -------------------------
  Metric Decrease:
      T24471
  -------------------------
  

• e6c192e2
  by Simon Peyton Jones at 2025-09-12T17:58:07-04:00

  Add a test case for #26396
  
  ...same bug ast #26315
  

• 8f3d80ff
  by Luite Stegeman at 2025-09-13T08:43:09+02:00

  Use mkVirtHeapOffsets for reconstructing terms in RTTI
  
  This makes mkVirtHeapOffsets the single source of truth for
  finding field offsets in closures.
  

• eb389338
  by Luite Stegeman at 2025-09-13T08:43:09+02:00

  Sort non-pointer fields by size for more efficient packing
  
  This sorts non-pointer fields in mkVirtHeapOffsets, always
  storing the largest field first. The relative order of
  equally sized fields remains unchanged.
  
  This reduces wasted padding/alignment space in closures with
  differently sized fields.
  

• 99b233f4
  by Alison at 2025-09-13T16:51:04-04:00

  ghc-heap: Fix race condition with profiling builds
  
  Apply the same fix from Closures.hs (64fd0fac83) to Heap.hs by adding
  empty imports to make way-dependent dependencies visible to `ghc -M`.
  
  Fixes #15197, #26407
  

• 77deaa7a
  by Cheng Shao at 2025-09-14T21:29:45-04:00

  hadrian: build in-tree gmp with -fvisibility=hidden
  
  When hadrian builds in-tree gmp, it should build the shared objects
  with -fvisibility=hidden. The gmp symbols are only used by bignum
  logic in ghc-internal and shouldn't be exported by the ghc-internal
  shared library. We should always strive to keep shared library symbol
  table lean, which benefits platforms with slow dynamic linker or even
  hard limits about how many symbols can be exported (e.g. macos dyld,
  win32 dll and wasm dyld).
  

• 42a18960
  by Cheng Shao at 2025-09-14T21:30:26-04:00

  Revert "wasm: add brotli compression for ghci browser mode"
  
  This reverts commit 731217ce68a1093b5f9e26a07d5bd2cdade2b352.
  Benchmarks show non-negligible overhead when browser runs on the same
  host, which is the majority of actual use cases.
  

• e6755b9f
  by Cheng Shao at 2025-09-14T21:30:26-04:00

  wasm: remove etag logic in ghci browser mode web server
  
  This commit removes the etag logic in dyld script's ghci browser mode
  web server. It was meant to support caching logic of wasm shared
  libraries, but even if the port is manually specified to make caching
  even relevant, for localhost the extra overhead around etag logic is
  simply not worth it according to benchmarks.
  

• ac5859b9
  by sheaf at 2025-09-16T14:58:38-04:00

  Add 'Outputable Natural' instance
  
  This commit adds an Outputable instance for the Natural natural-number type,
  as well as a "natural :: Natural -> SDoc" function that mirrors the existing
  "integer" function.
  

• d48ebc23
  by Cheng Shao at 2025-09-16T14:59:18-04:00

  autoconf: emit warning instead of error for FIND_PYTHON logic
  
  This patch makes FIND_PYTHON logic emit warning instead of error, so
  when the user doesn't expect to run the testsuite driver (especially
  when installing a bindist), python would not be mandatory. Fixes #26347.
  

• 54b5950e
  by Sylvain Henry at 2025-09-17T04:45:18-04:00

  Print fully qualified unit names in name mismatch
  
  It's more user-friendly to directly print the right thing instead of
  requiring the user to retry with the additional `-dppr-debug` flag.
  

• 403cb665
  by Ben Gamari at 2025-09-17T04:46:00-04:00

  configure: Fix consistency between distrib and source CC check
  
  Previously distrib/configure.ac did not
  include `cc`.
  
  Closes #26394.
  

• 2dcd4cb9
  by Oleg Grenrus at 2025-09-17T04:46:41-04:00

  Use isPrint in showUnique
  
  The comment say
  
  ```
  -- Avoid emitting non-printable characters in pretty uniques. See #25989.
  ```
  
  so let the code do exactly that.
  
  There are tags (at least : and 0 .. 9) which weren't in A .. z range.
  

• e5dd754b
  by Oleg Grenrus at 2025-09-17T04:46:42-04:00

  Shorten in-module links in hyperlinked source
  
  Instead of href="This.Module#ident" to just "#ident"
  

• 63189b2c
  by Oleg Grenrus at 2025-09-17T04:46:42-04:00

  Use showUnique in internalAnchorIdent
  
  Showing the key of Unique as a number is generally not a great idea.
  GHC Unique has a tag in high bits, so the raw number is unnecessarily
  big.
  
  So now we have
  
  ```html
  <a href="#l-rvgK"><span class="hs-identifier hs-var hs-var">bar</span></a>
  ```
  
  instead of
  
  ```html
  <a href="#local-6989586621679015689"><span class="hs-identifier hs-var hs-var">bar</span></a>
  ```
  
  Together with previous changes of shorter intra-module links the effect
  on compressed files is not huge, that is expected as we simply remove
  repetitive contents which pack well.
  
  ```
  12_694_206  Agda-2.9.0-docs-orig.tar.gz
  12_566_065  Agda-2.9.0-docs.tar.gz
  ```
  
  However when unpacked, the difference can be significant,
  e.g. Agda's largest module source got 5% reduction:
  
  ```
  14_230_117  Agda.Syntax.Parser.Parser.html
  13_422_109  Agda.Syntax.Parser.Parser.html
  ```
  
  The whole hyperlinked source code directory got similar reduction
  
  ```
  121M	Agda-2.9.0-docs-orig/src
  114M	Agda-2.9.0-docs/src
  ```
  
  For the reference, sources are about 2/3 of the generated haddocks
  
  ```
  178M	Agda-2.9.0-docs-old
  172M	Agda-2.9.0-docs
  ```
  
  so we get around 3.5% size reduction overall. Not bad for a small local
  changes.
  

• 6f63f57b
  by Stefan Schulze Frielinghaus at 2025-09-17T04:47:22-04:00

  rts: Fix alignment for gen_workspace #26334
  
  After a0fa4941903272c48b050d24e93eec819eff51bd bootstrap is broken on
  s390x and errors out with
  
  rts/sm/GCThread.h:207:5: error:
       error: alignment of array elements is greater than element size
        207 |     gen_workspace gens[];
            |     ^~~~~~~~~~~~~
  
  The alignment constraint is applied via the attribute to the type
  gen_workspace and leaves the underlying type struct gen_workspace_
  untouched.  On Aarch64, x86, and s390x the struct has a size of 128
  bytes.  On Aarch64 and x86 the alignments of 128 and 64 are divisors of
  the size, respectively, which is why the type is a viable member type
  for an array.  However, on s390x, the alignment is 256 and therefore is
  not a divisor of the size and hence cannot be used for arrays.
  
  Basically I see two fixes here.  Either decrease the alignment
  requirement on s390x, or by applying the alignment constraint on the
  struct itself.  The former might affect performance as noted in
  a0fa4941903272c48b050d24e93eec819eff51bd.  The latter introduces padding
  bits whenever necessary in order to ensure that
  sizeof(gen_workspace[N])==N*sizeof(gen_workspace) holds which is done by
  this patch.
  

• 06d25623
  by Cheng Shao at 2025-09-17T19:32:27-04:00

  ghci: add :shell command
  
  This patch adds a new :shell command to ghci which works similarly to
  :!, except it guarantees to run the command via sh -c. On POSIX hosts
  the behavior is identical to :!, but on Windows it uses the msys2
  shell instead of system cmd.exe shell. This is convenient when writing
  simple ghci scripts that run simple POSIX commands, and the behavior
  can be expected to be coherent on both Windows and POSIX.
  
  Co-authored-by: Codex <codex@openai.com>
  

• 186054f7
  by Cheng Shao at 2025-09-17T19:32:27-04:00

  testsuite: remove legacy :shell trick
  
  This commit makes use of the built-in :shell functionality in ghci in
  the test cases, and remove the legacy :shell trick.
  

• 0a3a4aa3
  by Cheng Shao at 2025-09-17T19:32:27-04:00

  docs: document :shell in ghci
  
  This commit documents the :shell command in ghci.
  
  Co-authored-by: Codex <codex@openai.com>
  

• a4ff12bb
  by Cheng Shao at 2025-09-17T19:33:09-04:00

  ghc-internal: fix codepages program
  
  codepages was not properly updated during the base -> ghc-internal
  migration, this commit fixes it.
  

• 7e094def
  by Cheng Shao at 2025-09-17T19:33:09-04:00

  ghc-internal: relax ucd2haskell cabal upper bounds
  
  This commit relaxes ucd2haskell cabal upper bounds to make it runnable
  via ghc 9.12/9.14.
  

• 7077c9f7
  by Cheng Shao at 2025-09-17T19:33:09-04:00

  ghc-internal: update to unicode 17.0.0
  
  This commit updates the generated code in ghc-internal to match
  unicode 17.0.0.
  

• cef8938f
  by sheaf at 2025-09-17T19:34:09-04:00

  Bad record update msg: allow out-of-scope datacons
  
  This commit ensures that, when we encounter an invalid record update
  (because no constructor exists which contains all of the record fields
  mentioned in the record update), we graciously handle the situation in
  which the constructors themselves are not in scope. In that case,
  instead of looking up the constructors in the GlobalRdrEnv, directly
  look up their GREInfo using the lookupGREInfo function.
  
  Fixes #26391
  

• a2d9d7c2
  by sheaf at 2025-09-17T19:34:09-04:00

  Improve Notes about disambiguating record updates
  
  This commit updates the notes [Disambiguating record updates] and
  [Type-directed record disambiguation], in particular adding more
  information about the deprecation status of type-directed disambiguation
  of record updates.
  

• de44e69e
  by sheaf at 2025-09-19T05:16:51-04:00

  Enable TcM plugins in initTc
  
  This commit ensures that we run typechecker plugins and defaulting
  plugins whenever we call initTc.
  
  In particular, this ensures that the pattern-match checker, which calls
  'initTcDsForSolver' which calls 'initTc', runs with typechecker plugins
  enabled. This matters for situations like:
  
    merge :: Vec n a -> Vec n a -> Vec (2 * n) a
    merge Nil Nil = Nil
    merge (a <: as) (b <: bs) = a :< (b <: merge as bs)
  
  in which we need the typechecker plugin to run in order to tell us that
  the Givens would be inconsistent in the additional equation
  
    merge (_ <: _) Nil
  
  and thus that the equation is not needed.
  
  Fixes #26395
  

• 2c378ad2
  by Cheng Shao at 2025-09-19T05:17:33-04:00

  rel-eng: update fedora image to 42
  
  This patch is a part of #25876 and updates fedora image to 42.
  

• 0a9d9ffc
  by Sylvain Henry at 2025-09-19T13:12:14-04:00

  Fix output of T14999 (#23685)
  
  Fix output of T14999 to:
  - take into account the +1 offset to DW_AT_low_pc (see Note [Info Offset])
  - always use Intel's syntax to force consistency: it was reported that
    sometimes GDB prints `jmpq` instead of `jmp` with the AT&T syntax
  

• 1480872a
  by Vladislav Zavialov at 2025-09-19T13:12:54-04:00

  Fix PREP_MAYBE_LIBRARY in prep_target_file.m4
  
  This change fixes a configure error introduced in:
  
    commit 8235dd8c4945db9cb03e3be3c388d729d576ed1e
    ghc-toolchain: Move UseLibdw to per-Target file
  
  Now the build no longer fails with:
  
    acghc-toolchain: Failed to read a valid Target value from hadrian/cfg/default.target
  

• d1d9e39e
  by Ben Gamari at 2025-09-19T18:24:52-04:00

  StgToByteCode: Don't assume that data con workers are nullary
  
  Previously StgToByteCode assumed that all data-con workers were of a
  nullary representation. This is not a valid assumption, as seen
  in #23210, where an unsaturated application of a unary data
  constructor's worker resulted in invalid bytecode. Sadly, I have not yet
  been able to reduce a minimal testcase for this.
  
  Fixes #23210.
  

• 3eeecd50
  by Ben Gamari at 2025-09-19T18:24:53-04:00

  testsuite: Mark T23146* as unbroken
  

• 2e73f342
  by sheaf at 2025-09-19T18:24:53-04:00

  Add test for #26216
  

• c2efb912
  by Sven Tennie at 2025-09-19T18:25:36-04:00

  Generate correct test header
  
  This increases convenience when copying & pasting...
  

• d2fb811e
  by Sven Tennie at 2025-09-19T18:25:36-04:00

  foundation test: Fix shift amount (#26248)
  
  Shift primops' results are only defined for shift amounts of 0 to word
  size - 1. The approach is similar to testing div-like operations (which
  have a constraint regarding zero operands.)
  
  This was partly vibe coded (https://github.com/supersven/ghc/pull/1) but
  then heavily refactored.
  

• a62ce115
  by Andreas Klebinger at 2025-09-19T18:26:18-04:00

  Tweak jspace test
  
  I've given it a longer timeout, and tweaked the test file generation
  to speed it up a bit. Hopefully that is enough to make it constentily pass.
  
  Last but not least it now also always uses three threads.
  

• 0f034942
  by Cheng Shao at 2025-09-19T18:26:59-04:00

  rts: remove obsolete CC_SUPPORTS_TLS logic
  
  This patch removes obsolete CC_SUPPORTS_TLS logic throughout the rts,
  given __thread is now uniformly supported by C toolchains of all
  platforms we currently support.
  

• ef705655
  by Cheng Shao at 2025-09-19T18:27:41-04:00

  rts: remove obsolete HAS_VISIBILITY_HIDDEN logic
  
  This patch removes obsolete HAS_VISIBILITY_HIDDEN logic throughout the
  rts, given __attribute__((visibility("hidden"))) is uniformly
  supported by C toolchains of all platforms we currently support.
  

• 9fdc1f7d
  by Cheng Shao at 2025-09-19T18:28:21-04:00

  rts: remove -O3 pragma hack in Hash.c
  
  This patch removes an obsolete gcc pragma to specify -O3 in Hash.c.
  Hadrian already passes the right flag.
  

• b8cfa8f7
  by Cheng Shao at 2025-09-19T18:29:01-04:00

  rts: remove obsolete COMPILING_WINDOWS_DLL logic
  
  This patch removes obsolete COMPILING_WINDOWS_DLL logic throughout the
  rts. They were once used for compiling to win32 DLLs, but we haven't
  been able to compile Haskell units to win32 DLLs for many years now,
  due to PE format's restriction of no more than 65536 exported symbols
  in a single DLL.
  

• bb760611
  by Cheng Shao at 2025-09-19T18:29:42-04:00

  wasm: bump browser_wasi_shim to 0.4.2
  
  This patch bumps the browser_wasi_shim dependency of wasm dyld script
  to 0.4.2.
  

• 8b0940db
  by Cheng Shao at 2025-09-20T06:48:05-04:00

  compiler: move Binary instance of Map to GHC.Utils.Binary
  
  This patch moves `Binary` instance of `Map` from `haddock-api` to
  `GHC.Utils.Binary`. This also allows us to remove a redundant instance
  defined for `NameEntityInfo`, which is a type synonym for `Map`.
  

• 4a8fed75
  by Vladislav Zavialov at 2025-09-20T06:48:47-04:00

  Fix keyword in ExplicitNamespaces error message (#26418)
  
  Consider this module header and the resulting error:
  
    {-# LANGUAGE NoExplicitNamespaces #-}
    module T26418 (data HeadC) where
  
    -- error: [GHC-47007]
    --   Illegal keyword 'type'
  
  Previously, the error message would mention 'type' (as shown above),
  even though the user wrote 'data'. This has now been fixed.
  
  The error location has also been corrected: it is now reported at the
  keyword position rather than at the position of the associated
  import/export item.
  

• 867c2675
  by Cheng Shao at 2025-09-20T06:49:28-04:00

  wasm: fix dyld handling for forward declared GOT.func items
  
  This patch fixes wasm shared linker's handling of forward declared
  GOT.func items, see linked issue for details. Also adds T26430 test to
  witness the fix. Fixes #26430.
  
  Co-authored-by: Codex <codex@openai.com>
  

• e7df6cc0
  by Simon Peyton Jones at 2025-09-23T14:34:39-04:00

  Improve pretty printer for HsExpr
  
  Given a very deeply-nested application, it just kept printing
  deeper and deeper.  This small change makes it cut off.
  
  Test is in #26330, but we also get a dramatic decrease in compile
  time for perf/compiler/InstanceMatching:
     InstanceMatching  4,086,884,584  1,181,767,232 -71.1% GOOD
  Why? Because before we got a GIGANTIC error message that took
  ages to pretty-print; now we get this much more civilised message
  (I have removed some whitespace.)
  
  Match.hs:1007:1: error:
      • No instance for ‘Show (F001 a)’ arising from a use of ‘showsPrec’
      • In the second argument of ‘showString’, namely
          ‘(showsPrec
              11 b1
           (GHC.Internal.Show.showSpace
              (showsPrec
                 11 b2
           (GHC.Internal.Show.showSpace
              (showsPrec
                 11 b3
           (GHC.Internal.Show.showSpace
              (showsPrec
                 11 b4
           (GHC.Internal.Show.showSpace
              (showsPrec
                 11 b5
           (GHC.Internal.Show.showSpace
              (showsPrec
                 11 b6
                 (GHC.Internal.Show.showSpace (showsPrec ...)))))))))))))’
  
  -----------------------
  The main payload is
  
  * At the start of `pprExpr`
  * In the defn of `pprApp`
  
  A little bit of refactoring:
  
  * It turned out that we were setting the default cut-off depth to a
    fixed value in two places, so changing one didn't change the other.
    See defaultSDocDepth and defaultSDocCols
  
  * I refactored `pprDeeperList` a bit so I could understand it better.
  
  Because the depth calculation has changed, there are lots of small
  error message wibbles.
  
  Metric Decrease:
      InstanceMatching
  

• 209f0158
  by Simon Peyton Jones at 2025-09-23T14:34:39-04:00

  Use Outputable.ellipsis rather than text "..."
  

• 64bb0e37
  by Sylvain Henry at 2025-09-23T14:35:56-04:00

  deriveConstants: automatically pass -fcommon CC flag (#26393)
  
  By mistake we tried to use deriveConstants without passing
  `--gcc-flag -fcommon` (which Hadrian does) and it failed.
  
  This patch:
  1. adds parsing support for constants stored in the .bss section (i.e.
     when -fcommon isn't passed)
  2. enables passing `-fcommon` automatically to the C compiler because
     Windows requires this for subtle reasons
  3. Documents the subtle reasons
  
  (1) isn't strictly necessary because we always do (2) but it does no
  harm and it is still useful if the CC flags ever contain -fno-common
  

• afcdf92f
  by Oleg Grenrus at 2025-09-23T14:36:41-04:00

  Don't wrap spaces in <span>s
  
  Doing similar comparison as in 63189b2ceca07edf4e179f4180ca60d470c62cb3
  
  With this change the gzipped documentation is now 2% smaller (previously 1%)
  
  12_694_206 Agda-2.9.0-docs-orig.tar.gz
  12_436_829 Agda-2.9.0-docs.tar.gz
  
  Unzipped docs are 5% smaller (previously 3%)
  
  178M	Agda-2.9.0-docs-orig
  169M	Agda-2.9.0-docs
  
  Individual hyperlinked sources are around 7-10% smaller (previously 5%)
  (`Parser` module is generated by happy and has relatively little whitespace)
  
  14_230_117 Agda.Syntax.Parser.Parser.html
  13_220_758 Agda.Syntax.Parser.Parser.html
  
  Agda's hyperlinked sources are 9% smaller now:
  
  121M	Agda-2.9.0-docs-orig/src
  110M	Agda-2.9.0-docs/src
  

• 67de53a6
  by Cheng Shao at 2025-09-23T14:37:31-04:00

  rts: remove obsolete __GNUC__ related logic
  
  This patch removes obsolete `__GNUC__` related logic, given on any
  currently supported platform and toolchain, `__GNUC__ >= 4` is
  universally true. Also pulls some other weeds and most notably, use
  `__builtin___clear_cache` for clang as well, since clang has supported
  this gcc intrinsic since 2014, see
  https://github.com/llvm/llvm-project/commit/c491a8d4577052bc6b3b4c72a7db6a7cfcbc2ed0.
  

• c4d32493
  by Sven Tennie at 2025-09-23T20:40:57-04:00

  RV64: Fix: Add missing truncation to MO_S_Shr (#26248)
  
  Sub-double word (<W64) registers need to be truncated after the
  operation.
  

• 41dce477
  by Sven Tennie at 2025-09-23T20:40:57-04:00

  RV64: Cleanup shift emitting cases/code
  
  Remove overlapping cases to make the shift logic easier to understand.
  

• 0a601c30
  by Alex Washburn at 2025-09-23T20:41:41-04:00

  Correcting LLVM linking of Intel BMI intrinsics pdep{8,16} and pext{8,16}.
  
  This patch fixes #26065.
  
  The LLVM interface does not expose bindings to:
  
    - llvm.x86.bmi.pdep.8
    - llvm.x86.bmi.pdep.16
    - llvm.x86.bmi.pext.8
    - llvm.x86.bmi.pext.16
  
  So calls are instead made to llvm.x86.bmi.{pdep,pext}.32 in these cases,
  with pre/post-operation truncation to constrain the logical value range.
  

• 89e8ff3d
  by Peng Fan at 2025-09-23T20:42:37-04:00

  NCG/LA64: Implement MO_BSwap and MO_BRev with bit-manipulation Instructions
  

• 50f6be09
  by Sylvain Henry at 2025-09-23T20:43:29-04:00

  Allow Core plugins to access unoptimized Core (#23337)
  
  Make the first simple optimization pass after desugaring a real CoreToDo
  pass. This allows CorePlugins to decide whether they want to be executed
  before or after this pass.
  

• 30ef0aac
  by Simon Hengel at 2025-09-23T20:44:12-04:00

  docs: Fix typo in scoped_type_variables.rst

• f8919262
  by Cheng Shao at 2025-09-23T20:44:54-04:00

  ghci: fix bootstrapping with 9.12.3-rc1 and above
  
  This patch fixes bootstrapping GHC with 9.12.3-rc1 and above. ghci
  defines `Binary` instance for `HalfWord` in `ghc-heap`, which is a
  proper `newtype` in 9.14 and starting from 9.12.3. Given we don't
  build `ghc-heap` in stage0, we need to fix this predicate so that it
  corresponds to the boot ghc versions that contain the right version of
  `ghc-heap`.
  

• a7f15858
  by sheaf at 2025-09-24T09:49:53-04:00

  User's guide: clarify optimisation of INLINABLE unfoldings
  
  This updates the user's guide section on INLINABLE pragmas to explain how
  the unfoldings of inlineable functions are optimised. The user's guide incorrectly
  stated that the RHS was not optimised at all, but this is not true. Instead, GHC
  is careful about phase control to optmise the RHS while retaining the guarantee
  that GHC behaves as if the original RHS had been written.

• 495886d9
  by Rodrigo Mesquita at 2025-09-24T09:50:35-04:00

  cleanup: Delete historical artifact of COMPILING_WINDOWS_DLL
  
  Namely, drop the obsolete
  - DLL_IMPORT_RTS
  - DLL_IMPORT_DATA_VAR
  - DLL_IMPORT_DATA_VARNAME
  - DLL_IMPORT_DATA_REF
  
  These macros were not doing anything and placed inconsistently
  
  Looking at the git logs reveal these macros were used to support
  dynamic libraries on Win32, a feature that was dropped
  in b8cfa8f741729ef123569fb321c4b2ab4a1a941c
  
  This allows us to get rid of the rts/DLL.h file too.
  

• 5ae89054
  by Sylvain Henry at 2025-09-24T17:07:00-04:00

  Allow disabling builtin rules (#20298)
  
  Add a way to disable built-in rules programmatically and with a debug flag.
  
  I also took the opportunity to add a debug flag to disable bignum rules,
  which was only possible programmatically (e.g. in a plugin).
  

• 135242ca
  by Rodrigo Mesquita at 2025-09-24T17:07:44-04:00

  Don't use build CFLAGS and friends as target settings
  
  In the GHC in tree configure, `CFLAGS`, `CXXFLAGS`, and similar tool
  configuration flags apply to the BUILD phase of the compiler, i.e. to
  the tools run to compile GHC itself.
  
  Notably, they should /not/ be carried over to the Target settings, i.e.
  these flags should /not/ apply to the tool which GHC invokes at runtime.
  
  Fixes #25637
  

• b418408b
  by Irene Knapp at 2025-09-25T09:47:54-04:00

  Document etymology of "bind" as the name for `>>=`
  
  It took me twenty years of contemplation to realize why it's called that.
  I therefore feel that it may not be obvious to beginners.
  

• e9c5e46f
  by Brandon Chinn at 2025-09-25T09:48:36-04:00

  Fix tabs in string gaps (#26415)
  
  Tabs in string gaps were broken in bb030d0d because previously, string gaps were manually parsed, but now it's lexed by the usual Alex grammar and post-processed after successful lexing.
  
  It broke because of a discrepancy between GHC's lexer grammar and the Haskell Report. The Haskell Report includes tabs in whitechar:
  
  whitechar  →  newline | vertab | space | tab | uniWhite
  
  $whitechar used to include tabs until 18 years ago, when it was removed in order to exclude tabs from $white_no_nl in order to warn on tabs: 6e202120. In this MR, I'm adding \t back into $whitechar, and explicitly excluding \t from the $white_no_nl+ rule ignoring all whitespace in source code, which more accurately colocates the "ignore all whitespace except tabs, which is handled in the next line" logic.
  
  As a side effect of this MR, tabs are now allowed in pragmas; currently, a pragma written as {-# \t LANGUAGE ... #-} is interpreted as the tab character being the pragma name, and GHC warns "Unrecognized pragma". With this change, tabs are ignored as whitespace, which more closely matches the Report anyway.
  

• 8bf5b309
  by Cheng Shao at 2025-09-25T09:49:18-04:00

  wasm: remove the --no-turbo-fast-api-calls hack from dynamic linker shebang
  
  This patch removes the `--no-turbo-fast-api-calls` hack from the dyld
  script shebang; it was used to workaround v8 fast call coredumps in
  nodejs and no longer needed, and comes with a performance penalty,
  hence the removal.
  

• c1cab0c3
  by Sylvain Henry at 2025-09-26T10:36:30-04:00

  Revert "Add necessary flag for js linking"
  
  This reverts commit 84f68e2231b2eddb2e1dc4e90af394ef0f2e803f.
  
  This commit didn't have the expected effect. See discussion in #26290.
  Instead we export HEAP8 and HEAPU8 from rts/js/mem.js
  

• 0a434a80
  by Sylvain Henry at 2025-09-26T10:36:30-04:00

  JS: export HEAPU8 (#26290)
  
  This is now required by newer Emscripten versions.
  

• b10296a9
  by Andreas Klebinger at 2025-09-26T10:37:11-04:00

  sizeExpr: Improve Tick handling.
  
  When determining if we scrutinize a function argument we
  now properly look through ticks. Fixes #26444.
  

• d9e2a9a7
  by mniip at 2025-09-26T16:00:50-04:00

  rts: Refactor parsing of -h flags
  
  We have a nontrivial amount of heap profiling flags available in the
  non-profiled runtime, so it makes sense to reuse the parsing code
  between the profiled and the non-profiled runtime, only restricting
  which flags are allowed.
  

• 089e45aa
  by mniip at 2025-09-26T16:00:50-04:00

  rts: Fix parsing of -h options with braces
  
  When the "filter by" -h options were introduced in
  bc210f7d267e8351ccb66972f4b3a650eb9338bb, the braces were mandatory.
  Then in 3c22fb21fb18e27ce8d941069a6915fce584a526, the braces were made
  optional. Then in d1ce35d2271ac8b79cb5e37677b1a989749e611c the brace
  syntax stopped working, and no one seems to have noticed.
  

• 423f1472
  by mniip at 2025-09-26T16:00:50-04:00

  rts: add -hT<type> and -hi<table id> heap filtering options (#26361)
  
  They are available in non-profiled builds.
  
  Along the way fixed a bug where combining -he<era> and -hr<retainer>
  would ignore whether the retainer matches or not.
  

• 4cda4785
  by mniip at 2025-09-26T16:00:50-04:00

  docs: Document -hT<type> and -hi<addr>
  

• 982ad30f
  by mniip at 2025-09-26T16:00:50-04:00

  rts: Refactor dumping the heap census
  
  Always do the printing of the total size right next to where the bucket
  label is printed. This prevents accidentally printing a label without
  the corresponding amount.
  
  Fixed a bug where exactly this happened for -hi profile and the 0x0
  (uncategorized) info table.
  
  There is now also much more symmetry between fprintf(hp_file,...) and
  the corresponding traceHeapProfSampleString.
  

• 8cbe006a
  by Cheng Shao at 2025-09-26T16:01:34-04:00

  hadrian: fix GHC.Platform.Host generation for cross stage1
  
  This patch fixes incorrectly GHC.Platform.Host generation logic for
  cross stage1 in hadrian (#26449). Also adds T26449 test case to
  witness the fix.
  
  Co-authored-by: Codex <codex@openai.com>
  

• 0ddd0fdc
  by soulomoon at 2025-09-28T19:24:10-04:00

  Remove hptAllInstances usage during upsweep
  
  Previously, during the upsweep phase when
  checking safe imports, we were loading the module
  interface with runTcInteractive, which in turn calls
  hptAllInstances. This accesses non-below modules
  from the home package table.
  
  Change the implementation of checkSafeImports
  to use initTcWithGbl and loadSysInterface to load the
  module interface, since we already have TcGblEnv at hand.
  This eliminates the unnecessary use of runTcInteractive
  and hptAllInstances during the upsweep phase.
  

• e05c496c
  by Ben Gamari at 2025-09-28T19:24:59-04:00

  base: Update changelog to reflect timing of IOPort# removal
  
  This change will make 9.14 afterall.
  

• bdc9d130
  by Cheng Shao at 2025-09-28T19:25:45-04:00

  rts: fix wasm JSFFI initialization constructor code
  
  This commit fixes wasm JSFFI initialization constructor code so that
  the constructor is self-contained and avoids invoking a fake
  __main_argc_argv function. The previous approach of reusing
  __main_void logic in wasi-libc saves a tiny bit of code, at the
  expense of link-time trouble whenever GHC links a wasm module without
  -no-hs-main, in which case the driver-generated main function would
  clash with the definition here, resulting in a linker error. It's
  simply better to avoid messing with the main function, and it would
  additionally allow linking wasm32-wasi command modules that does make
  use of synchronous JSFFI.
  

• 5d59fc8f
  by Cheng Shao at 2025-09-28T19:26:27-04:00

  rts: provide stub implementations of ExecPage functions for wasm
  
  This patch provides stub implementations of ExecPage functions for
  wasm. They are never actually invoked at runtime for any non-TNTC
  platform, yet they can cause link-time errors of missing symbols when
  the GHCi.InfoTable module gets linked into the final wasm module (e.g.
  a GHC API program).
  

• a4d664c7
  by Cheng Shao at 2025-09-29T17:29:22+02:00

  compiler/ghci: replace the LoadDLL message with LoadDLLs
  
  As a part of #25407, this commit changes the LoadDLL message to
  LoadDLLs, which takes a list of DLL paths to load and returns the list
  of remote pointer handles. The wasm dyld is refactored to take
  advantage of LoadDLLs and harvest background parallelism. On other
  platforms, LoadDLLs is based on a fallback codepath that does
  sequential loading.
  
  The driver is not actually emitting singular LoadDLLs message with
  multiple DLLs yet, this is left in subsequent commits.
  
  Co-authored-by: Codex <codex@openai.com>
  

• c7fc4bae
  by Cheng Shao at 2025-09-29T17:29:22+02:00

  driver: separate downsweep/upsweep phase in loadPackages'
  
  This commit refactors GHC.Linker.Loader.loadPackages' to be separated
  into downsweep/upsweep phases:
  
  - The downsweep phase performs dependency analysis and generates a
    list of topologically sorted packages to load
  - The upsweep phase sequentially loads these packages by calling
    loadPackage
  
  This is a necessary refactoring to make it possible to make loading of
  DLLs concurrent.
  

• ab180104
  by Cheng Shao at 2025-09-29T17:57:19+02:00

  driver: emit single LoadDLLs message to load multiple DLLs
  
  This commit refactors the driver so that it emits a single LoadDLLs
  message to load multiple DLLs in GHC.Linker.Loader.loadPackages'.
  Closes #25407.
  
  -------------------------
  Metric Increase:
      MultiLayerModulesTH_OneShot
      TcPlugin_RewritePerf
  -------------------------
  
  Co-authored-by: Codex <codex@openai.com>
  

• 9c304ec0
  by Sean D. Gillespie at 2025-09-29T19:57:07-04:00

  Fix SIZED_BIN_OP_TY_INT casts in RTS interpreter
  
  Correct `SIZED_BIN_OP_TY_INT` cast to integer. Previously, it cast
  its second operand as its parameter `ty`. This does not currently
  cause any issues, since we are only using it for bit shifts.
  
  Fixes #26287
  

• a1de535f
  by Luite Stegeman at 2025-09-30T18:40:28-04:00

  rts: Fix lost wakeups in threadPaused for threads blocked on black holes
  
  The lazy blackholing code in threadPaused could overwrite closures
  that were already eagerly blackholed, and as such wouldn't have a
  marked update frame. If the black hole was overwritten by its
  original owner, this would lead to an undetected collision, and
  the contents of any existing blocking queue being lost.
  
  This adds a check for eagerly blackholed closures and avoids
  overwriting their contents.
  
  Fixes #26324
  

• b7e21e49
  by Luite Stegeman at 2025-09-30T18:40:28-04:00

  rts: push the correct update frame in stg_AP_STACK
  
  The frame contains an eager black hole (__stg_EAGER_BLACKHOLE_info) so
  we should push an stg_bh_upd_frame_info instead of an stg_upd_frame_info.
  

• 02a7c18a
  by Cheng Shao at 2025-09-30T18:41:27-04:00

  ghci: fix lookupSymbolInDLL behavior on wasm
  
  This patch fixes lookupSymbolInDLL behavior on wasm to return Nothing
  instead of throwing. On wasm, we only have lookupSymbol, and the
  driver would attempt to call lookupSymbolInDLL first before falling
  back to lookupSymbol, so lookupSymbolInDLL needs to return Nothing
  gracefully for the fallback behavior to work.
  

• aa0ca5e3
  by Cheng Shao at 2025-09-30T18:41:27-04:00

  hadrian/compiler: enable internal-interpreter for ghc library in wasm stage1
  
  This commit enables the internal-interpreter flag for ghc library in
  wasm stage1, as well as other minor adjustments to make it actually
  possible to launch a ghc api session that makes use of the internal
  interpreter. Closes #26431 #25400.
  

• 69503668
  by Cheng Shao at 2025-09-30T18:41:27-04:00

  testsuite: add T26431 test case
  
  This commit adds T26431 to testsuite/tests/ghci-wasm which goes
  through the complete bytecode compilation/linking/running pipeline in
  wasm, so to witness that the ghc shared library in wasm have full
  support for internal-interpreter.
  

• e9445c01
  by Matthew Pickering at 2025-09-30T18:42:23-04:00

  driver: Load bytecode static pointer entries during linking
  
  Previously the entries were loaded too eagerly, during upsweep, but we
  should delay loading them until we know that the relevant bytecode
  object is demanded.
  
  Towards #25230
  

• b8307eab
  by Cheng Shao at 2025-09-30T18:43:14-04:00

  autoconf/ghc-toolchain: remove obsolete C99 check
  
  This patch removes obsolete c99 check from autoconf/ghc-toolchain. For
  all toolchain & platform combination we support, gnu11 or above is
  already supported without any -std flag required, and our RTS already
  required C11 quite a few years ago, so the C99 check is completely
  pointless.
  

• 9c293544
  by Simon Peyton Jones at 2025-10-01T09:36:10+01:00

  Fix buglet in GHC.Core.Unify.uVarOrFam
  
  We were failing to match two totally-equal types!
  
  This led to #26457.
  

• 554487a7
  by Rodrigo Mesquita at 2025-10-01T23:04:43-04:00

  cleanup: Drop obsolete comment about HsConDetails
  
  HsConDetails used to have an argument representing the type of the
  tyargs in a list:
  
      data HsConDetails tyarg arg rec
        = PrefixCon [tyarg] [arg]
  
  This datatype was shared across 3 synonyms: HsConPatDetails,
  HsConDeclH98Details, HsPatSynDetails. In the latter two cases, `tyarg`
  was instanced to `Void` meaning the list was always empty for these
  cases.
  
  In 7b84c58867edca57a45945a20a9391724db6d9e4, this was refactored such
  that HsConDetails no longer needs a type of tyargs by construction. The
  first case now represents the type arguments in the args type itself,
  with something like:
  
      ConPat "MkE" [InvisP tp1, InvisP tp2, p1, p2]
  
  So the deleted comment really is just obsolete.
  
  Fixes #26461
  

• 6992ac09
  by Cheng Shao at 2025-10-02T07:27:55-04:00

  testsuite: remove unused expected output files
  
  This patch removes unused expected output files in the testsuites on
  platforms that we no longer support.
  

• 39eaaaba
  by Ben Gamari at 2025-10-02T07:28:45-04:00

  rts: Dynamically initialize built-in closures
  
  To resolve #26166 we need to eliminate references to undefined symbols
  in the runtime system. One such source of these is the runtime's
  static references to `I#` and `C#` due the `stg_INTLIKE` and
  `stg_CHARLIKE` arrays.
  
  To avoid this we make these dynamic, initializing them during RTS
  start-up.
  

• c254c54b
  by Cheng Shao at 2025-10-02T07:29:33-04:00

  compiler: only invoke keepCAFsForGHCi if internal-interpreter is enabled
  
  This patch makes the ghc library only invoke keepCAFsForGHCi if
  internal-interpreter is enabled. For cases when it's not (e.g. the
  host build of a cross ghc), this avoids unnecessarily retaining all
  CAFs in the heap. Also fixes the type signature of c_keepCAFsForGHCi
  to match the C ABI.
  

• c9ec4d43
  by Simon Hengel at 2025-10-02T18:42:20-04:00

  Update copyright in documentation
  

• da9633a9
  by Matthew Pickering at 2025-10-02T18:43:04-04:00

  loader: Unify loadDecls and loadModuleLinkables functions
  
  These two functions nearly did the same thing. I have refactored them so
  that `loadDecls` now calls `loadModuleLinkables`.
  
  Fixes #26459
  

• 5db98d80
  by Simon Hengel at 2025-10-02T18:43:53-04:00

  Fix typo

• 1275d360
  by Matthew Pickering at 2025-10-03T06:05:56-04:00

  testsuite: Use ghci_ways to set ways in PackedDataCon/UnboxedTuples/UnliftedDataTypeInterp tests
  
  These tests reimplemented the logic from `valid_way` in order to
  determine what ways to run. It's easier to use this combination of
  `only_ways` and `extra_ways` to only run in GHCi ways and always run in
  GHCi ways.
  

• c06b534b
  by Matthew Pickering at 2025-10-03T06:06:40-04:00

  Rename interpreterBackend to bytecodeBackend
  
  This is preparation for creating bytecode files.
  
  The "interpreter" is one way in which we can run bytecode objects. It is
  more accurate to describe that the backend produces bytecode, rather
  than the means by which the code will eventually run.
  
  The "interpreterBackend" binding is left as a deprecated alias.
  

• c4292872
  by Sven Tennie at 2025-10-04T13:56:39+02:00

  Build terminfo only in upper stages in cross-builds (#26288)
  
  Currently, there's no way to provide library paths for [n]curses for
  both - build and target - in cross-builds. As stage0 is only used to
  build upper stages, it should be fine to build terminfo only for them.
  
  This re-enables building cross-compilers with terminfo.
  

477 changed files:

• .gitlab-ci.yml
• .gitlab/generate-ci/gen_ci.hs
• .gitlab/jobs.yaml
• .gitlab/rel_eng/fetch-gitlab-artifacts/fetch_gitlab.py
• .gitlab/rel_eng/mk-ghcup-metadata/mk_ghcup_metadata.py
• compiler/GHC.hs
• compiler/GHC/Builtin/Uniques.hs
• compiler/GHC/Builtin/primops.txt.pp
• compiler/GHC/Cmm/Parser.y
• compiler/GHC/Cmm/Utils.hs
• compiler/GHC/CmmToAsm/LA64/CodeGen.hs
• compiler/GHC/CmmToAsm/LA64/Instr.hs
• compiler/GHC/CmmToAsm/LA64/Ppr.hs
• compiler/GHC/CmmToAsm/RV64/CodeGen.hs
• compiler/GHC/CmmToLlvm/CodeGen.hs
• compiler/GHC/Core/Opt/ConstantFold.hs
• compiler/GHC/Core/Opt/Pipeline.hs
• compiler/GHC/Core/Opt/Pipeline/Types.hs
• compiler/GHC/Core/Opt/Simplify/Env.hs
• compiler/GHC/Core/Opt/Specialise.hs
• compiler/GHC/Core/Ppr.hs
• compiler/GHC/Core/Rules.hs
• compiler/GHC/Core/Rules/Config.hs
• compiler/GHC/Core/Type.hs
• compiler/GHC/Core/Unfold.hs
• compiler/GHC/Core/Unify.hs
• compiler/GHC/Driver/Backend.hs
• compiler/GHC/Driver/Backend/Internal.hs
• compiler/GHC/Driver/Config/Core/Rules.hs
• compiler/GHC/Driver/Downsweep.hs
• compiler/GHC/Driver/DynFlags.hs
• compiler/GHC/Driver/Flags.hs
• compiler/GHC/Driver/Main.hs
• compiler/GHC/Driver/Make.hs
• compiler/GHC/Driver/Pipeline.hs
• compiler/GHC/Driver/Plugins.hs
• compiler/GHC/Driver/Session.hs
• compiler/GHC/Hs/Expr.hs
• compiler/GHC/HsToCore.hs
• compiler/GHC/HsToCore/Binds.hs
• compiler/GHC/HsToCore/Errors/Ppr.hs
• compiler/GHC/HsToCore/Monad.hs
• compiler/GHC/HsToCore/Pmc/Ppr.hs
• compiler/GHC/HsToCore/Pmc/Solver.hs
• compiler/GHC/HsToCore/Pmc/Types.hs
• compiler/GHC/Iface/Errors/Ppr.hs
• compiler/GHC/Iface/Ext/Types.hs
• compiler/GHC/Iface/Syntax.hs
• compiler/GHC/Iface/Tidy/StaticPtrTable.hs
• compiler/GHC/Linker/Loader.hs
• compiler/GHC/Linker/MacOS.hs
• compiler/GHC/Linker/Types.hs
• compiler/GHC/Llvm/Ppr.hs
• compiler/GHC/Llvm/Types.hs
• compiler/GHC/Parser.y
• compiler/GHC/Parser/Errors/Ppr.hs
• compiler/GHC/Parser/Errors/Types.hs
• compiler/GHC/Parser/Lexer.x
• compiler/GHC/Parser/Lexer/String.x
• compiler/GHC/Parser/PostProcess.hs
• compiler/GHC/Parser/Types.hs
• compiler/GHC/Rename/Env.hs
• compiler/GHC/Rename/Pat.hs
• compiler/GHC/Runtime/Heap/Inspect.hs
• compiler/GHC/Runtime/Interpreter.hs
• compiler/GHC/Runtime/Interpreter/Types.hs
• compiler/GHC/Runtime/Loader.hs
• compiler/GHC/Settings.hs
• compiler/GHC/Settings/IO.hs
• compiler/GHC/Stg/Unarise.hs
• compiler/GHC/StgToByteCode.hs
• compiler/GHC/StgToCmm/DataCon.hs
• compiler/GHC/StgToCmm/Layout.hs
• compiler/GHC/SysTools/BaseDir.hs
• compiler/GHC/Tc/Deriv/Utils.hs
• compiler/GHC/Tc/Errors.hs
• compiler/GHC/Tc/Errors/Ppr.hs
• compiler/GHC/Tc/Gen/Expr.hs
• compiler/GHC/Tc/Gen/Sig.hs
• compiler/GHC/Tc/Module.hs
• compiler/GHC/Tc/Solver.hs
• compiler/GHC/Tc/Solver/Default.hs
• compiler/GHC/Tc/Solver/Dict.hs
• compiler/GHC/Tc/Solver/Equality.hs
• compiler/GHC/Tc/Solver/InertSet.hs
• compiler/GHC/Tc/Solver/Monad.hs
• compiler/GHC/Tc/Solver/Solve.hs
• compiler/GHC/Tc/Solver/Solve.hs-boot
• compiler/GHC/Tc/Types/Constraint.hs
• compiler/GHC/Tc/Types/Evidence.hs
• compiler/GHC/Tc/Types/Origin.hs
• compiler/GHC/Tc/Utils/Monad.hs
• compiler/GHC/Tc/Utils/TcType.hs
• compiler/GHC/Tc/Utils/Unify.hs
• compiler/GHC/Tc/Zonk/TcType.hs
• compiler/GHC/Tc/Zonk/Type.hs
• compiler/GHC/Types/Hint/Ppr.hs
• compiler/GHC/Types/RepType.hs
• compiler/GHC/Types/Unique.hs
• compiler/GHC/Unit/State.hs
• compiler/GHC/Utils/Binary.hs
• compiler/GHC/Utils/Outputable.hs
• compiler/GHC/Utils/Ppr.hs
• compiler/Language/Haskell/Syntax/Decls.hs
• compiler/cbits/keepCAFsForGHCi.c
• compiler/ghc.cabal.in
• configure.ac
• distrib/configure.ac.in
• docs/users_guide/9.16.1-notes.rst
• docs/users_guide/conf.py
• docs/users_guide/debugging.rst
• docs/users_guide/extending_ghc.rst
• docs/users_guide/exts/pragmas.rst
• docs/users_guide/exts/scoped_type_variables.rst
• docs/users_guide/flags.py
• docs/users_guide/ghci.rst
• docs/users_guide/profiling.rst
• docs/users_guide/runtime_control.rst
• ghc/GHCi/UI.hs
• ghc/Main.hs
• hadrian/bindist/Makefile
• hadrian/bindist/config.mk.in
• hadrian/cfg/default.host.target.in
• hadrian/cfg/default.target.in
• hadrian/cfg/system.config.in
• hadrian/src/Base.hs
• hadrian/src/Oracles/Flag.hs
• hadrian/src/Oracles/Setting.hs
• hadrian/src/Oracles/TestSettings.hs
• hadrian/src/Rules/Generate.hs
• hadrian/src/Rules/Gmp.hs
• hadrian/src/Settings/Builders/DeriveConstants.hs
• hadrian/src/Settings/Default.hs
• hadrian/src/Settings/Packages.hs
• libraries/base/changelog.md
• libraries/base/src/GHC/RTS/Flags.hs
• libraries/base/tests/unicode002.stdout
• libraries/base/tests/unicode003.stdout
• libraries/ghc-boot/GHC/Settings/Utils.hs
• libraries/ghc-boot/ghc-boot.cabal.in
• libraries/ghc-heap/GHC/Exts/Heap.hs
• libraries/ghc-internal/cbits/atomic.c
• libraries/ghc-internal/cbits/ctz.c
• libraries/ghc-internal/codepages/MakeTable.hs
• libraries/ghc-internal/codepages/Makefile
• libraries/ghc-internal/src/GHC/Internal/Base.hs
• libraries/ghc-internal/src/GHC/Internal/Float.hs
• libraries/ghc-internal/src/GHC/Internal/RTS/Flags.hsc
• libraries/ghc-internal/src/GHC/Internal/ResponseFile.hs
• libraries/ghc-internal/src/GHC/Internal/Unicode/Char/DerivedCoreProperties.hs
• libraries/ghc-internal/src/GHC/Internal/Unicode/Char/UnicodeData/GeneralCategory.hs
• libraries/ghc-internal/src/GHC/Internal/Unicode/Char/UnicodeData/SimpleLowerCaseMapping.hs
• libraries/ghc-internal/src/GHC/Internal/Unicode/Char/UnicodeData/SimpleTitleCaseMapping.hs
• libraries/ghc-internal/src/GHC/Internal/Unicode/Char/UnicodeData/SimpleUpperCaseMapping.hs
• libraries/ghc-internal/src/GHC/Internal/Unicode/Version.hs
• libraries/ghc-internal/tools/ucd2haskell/ucd.sh
• libraries/ghc-internal/tools/ucd2haskell/ucd2haskell.cabal
• libraries/ghc-internal/tools/ucd2haskell/unicode_version
• libraries/ghci/GHCi/Message.hs
• libraries/ghci/GHCi/ObjLink.hs
• libraries/ghci/GHCi/Run.hs
• linters/lint-codes/LintCodes/Coverage.hs
• m4/find_python.m4
• m4/fp_cmm_cpp_cmd_with_args.m4
• m4/fp_find_libdw.m4
• − m4/fp_set_cflags_c99.m4
• − m4/fp_settings.m4
• m4/fp_setup_windows_toolchain.m4
• − m4/fp_visibility_hidden.m4
• m4/fptools_set_c_ld_flags.m4
• m4/ghc_toolchain.m4
• m4/prep_target_file.m4
• + m4/subst_tooldir.m4
• mk/hsc2hs.in
• rts/Apply.cmm
• rts/BeginPrivate.h
• + rts/BuiltinClosures.c
• + rts/BuiltinClosures.h
• rts/CloneStack.h
• + rts/ClosureTable.c
• + rts/ClosureTable.h
• rts/EndPrivate.h
• rts/ExecPage.c
• rts/Hash.c
• rts/IOManager.c
• rts/IOManager.h
• rts/IOManagerInternals.h
• rts/Interpreter.c
• rts/Prelude.h
• rts/PrimOps.cmm
• rts/ProfHeap.c
• rts/RetainerSet.c
• − rts/RtsDllMain.c
• − rts/RtsDllMain.h
• rts/RtsFlags.c
• rts/RtsSignals.h
• rts/RtsStartup.c
• rts/RtsSymbols.c
• rts/Schedule.c
• rts/StgMiscClosures.cmm
• rts/Task.c
• rts/Task.h
• rts/ThreadPaused.c
• rts/Threads.c
• + rts/TimeoutQueue.c
• + rts/TimeoutQueue.h
• rts/configure.ac
• rts/include/Rts.h
• rts/include/RtsAPI.h
• rts/include/Stg.h
• rts/include/rts/Constants.h
• rts/include/rts/Flags.h
• rts/include/rts/NonMoving.h
• rts/include/rts/OSThreads.h
• rts/include/rts/StableName.h
• rts/include/rts/StablePtr.h
• rts/include/rts/Types.h
• rts/include/rts/storage/Closures.h
• rts/include/rts/storage/TSO.h
• − rts/include/stg/DLL.h
• rts/include/stg/MiscClosures.h
• rts/js/mem.js
• rts/linker/MachO.c
• rts/posix/OSThreads.c
• + rts/posix/Poll.c
• + rts/posix/Poll.h
• + rts/posix/Timeout.c
• + rts/posix/Timeout.h
• rts/rts.cabal
• rts/sm/BlockAlloc.c
• rts/sm/Evac.c
• rts/sm/Evac.h
• rts/sm/GCTDecl.h
• rts/sm/GCThread.h
• rts/sm/Storage.c
• rts/wasm/JSFFI.c
• rts/win32/OSThreads.c
• testsuite/driver/testglobals.py
• testsuite/driver/testlib.py
• testsuite/ghc-config/ghc-config.hs
• testsuite/mk/test.mk
• testsuite/tests/arrows/gadt/T17423.stderr
• testsuite/tests/backpack/should_fail/bkpfail11.stderr
• testsuite/tests/backpack/should_fail/bkpfail43.stderr
• + testsuite/tests/bytecode/T26216.hs
• + testsuite/tests/bytecode/T26216.script
• + testsuite/tests/bytecode/T26216.stdout
• + testsuite/tests/bytecode/T26216_aux.hs
• testsuite/tests/bytecode/all.T
• testsuite/tests/codeGen/should_compile/Makefile
• testsuite/tests/codeGen/should_compile/T14999.stdout
• + testsuite/tests/codeGen/should_compile/T20298a.hs
• + testsuite/tests/codeGen/should_compile/T20298a.stderr
• + testsuite/tests/codeGen/should_compile/T20298b.hs
• + testsuite/tests/codeGen/should_compile/T20298b.stderr
• + testsuite/tests/codeGen/should_compile/T20298c.hs
• + testsuite/tests/codeGen/should_compile/T20298c.stderr
• testsuite/tests/codeGen/should_compile/T25166.stdout → testsuite/tests/codeGen/should_compile/T25166.stdout-ws-32
• + testsuite/tests/codeGen/should_compile/T25166.stdout-ws-64
• testsuite/tests/codeGen/should_compile/all.T
• testsuite/tests/codeGen/should_run/T13825-unit.hs
• testsuite/tests/codeGen/should_run/T23146/all.T
• + testsuite/tests/cross/should_run/T26449.hs
• + testsuite/tests/cross/should_run/all.T
• + testsuite/tests/deriving/should_compile/T26396.hs
• testsuite/tests/deriving/should_compile/all.T
• testsuite/tests/deriving/should_fail/T12768.stderr
• testsuite/tests/deriving/should_fail/T1496.stderr
• testsuite/tests/deriving/should_fail/T21302.stderr
• testsuite/tests/deriving/should_fail/T22696b.stderr
• testsuite/tests/deriving/should_fail/T5498.stderr
• testsuite/tests/deriving/should_fail/T7148.stderr
• testsuite/tests/deriving/should_fail/T7148a.stderr
• testsuite/tests/driver/T5313.hs
• testsuite/tests/driver/all.T
• testsuite/tests/driver/j-space/Makefile
• testsuite/tests/driver/j-space/all.T
• testsuite/tests/driver/j-space/genJspace
• testsuite/tests/driver/multipleHomeUnits/all.T
• testsuite/tests/ffi/should_run/T1288_c.c
• testsuite/tests/ffi/should_run/T1288_ghci_c.c
• testsuite/tests/ffi/should_run/T2276_c.c
• testsuite/tests/ffi/should_run/T2276_ghci_c.c
• testsuite/tests/ghc-api/T10052/T10052.hs
• testsuite/tests/ghc-api/T20757.hs
• testsuite/tests/ghc-api/T8639_api.hs
• testsuite/tests/ghc-api/apirecomp001/myghc.hs
• testsuite/tests/ghc-api/settings-escape/T24265.hs
• testsuite/tests/ghc-api/settings-escape/T24265.stderr
• + testsuite/tests/ghc-api/settings-escape/ghc-install-folder/lib with spaces/targets/.gitkeep
• + testsuite/tests/ghci-wasm/Makefile
• + testsuite/tests/ghci-wasm/T26430.hs
• + testsuite/tests/ghci-wasm/T26430A.c
• + testsuite/tests/ghci-wasm/T26430B.c
• + testsuite/tests/ghci-wasm/T26431.hs
• + testsuite/tests/ghci-wasm/T26431.stdout
• + testsuite/tests/ghci-wasm/all.T
• testsuite/tests/ghci.debugger/scripts/break022/all.T
• testsuite/tests/ghci.debugger/scripts/break022/break022.script
• testsuite/tests/ghci.debugger/scripts/break023/all.T
• testsuite/tests/ghci.debugger/scripts/break023/break023.script
• testsuite/tests/ghci/linking/dyn/T3372.hs
• testsuite/tests/ghci/prog001/prog001.T
• testsuite/tests/ghci/prog001/prog001.script
• testsuite/tests/ghci/prog002/prog002.T
• testsuite/tests/ghci/prog002/prog002.script
• testsuite/tests/ghci/prog003/prog003.T
• testsuite/tests/ghci/prog003/prog003.script
• testsuite/tests/ghci/prog005/prog005.T
• testsuite/tests/ghci/prog005/prog005.script
• testsuite/tests/ghci/prog010/all.T
• testsuite/tests/ghci/prog010/ghci.prog010.script
• testsuite/tests/ghci/prog012/all.T
• testsuite/tests/ghci/prog012/prog012.script
• testsuite/tests/ghci/recompTHghci/all.T
• testsuite/tests/ghci/recompTHghci/recompTHghci.script
• testsuite/tests/ghci/scripts/T18330.script
• testsuite/tests/ghci/scripts/T18330.stdout
• testsuite/tests/ghci/scripts/T1914.script
• testsuite/tests/ghci/scripts/T20587.script
• testsuite/tests/ghci/scripts/T6106.script
• testsuite/tests/ghci/scripts/T7388.hs
• testsuite/tests/ghci/scripts/T7388.script
• testsuite/tests/ghci/scripts/T8353.script
• testsuite/tests/ghci/scripts/all.T
• testsuite/tests/ghci/scripts/ghci038.script
• testsuite/tests/ghci/scripts/ghci058.script
• testsuite/tests/ghci/scripts/ghci063.script
• − testsuite/tests/ghci/shell.hs
• testsuite/tests/ghci/should_run/PackedDataCon/packeddatacon.T
• testsuite/tests/ghci/should_run/UnboxedTuples/unboxedtuples.T
• testsuite/tests/ghci/should_run/UnliftedDataTypeInterp/unlifteddatatypeinterp.T
• testsuite/tests/impredicative/T17332.stderr
• testsuite/tests/indexed-types/should_compile/PushedInAsGivens.stderr
• testsuite/tests/indexed-types/should_fail/T26176.stderr
• testsuite/tests/indexed-types/should_fail/T2693.stderr
• testsuite/tests/indexed-types/should_fail/T4093b.stderr
• testsuite/tests/indexed-types/should_fail/T8518.stderr
• testsuite/tests/indexed-types/should_fail/T9662.stderr
• testsuite/tests/interface-stability/ghc-experimental-exports.stdout
• testsuite/tests/interface-stability/ghc-experimental-exports.stdout-mingw32
• + testsuite/tests/linear/should_compile/T26332.hs
• testsuite/tests/linear/should_compile/all.T
• testsuite/tests/linear/should_fail/Linear17.stderr
• testsuite/tests/linear/should_fail/LinearLet7.stderr
• + testsuite/tests/llvm/should_run/T26065.hs
• + testsuite/tests/llvm/should_run/T26065.stdout
• testsuite/tests/llvm/should_run/all.T
• testsuite/tests/numeric/should_run/foundation.hs
• + testsuite/tests/overloadedrecflds/should_fail/T26391.hs
• + testsuite/tests/overloadedrecflds/should_fail/T26391.stderr
• testsuite/tests/overloadedrecflds/should_fail/all.T
• testsuite/tests/parser/should_fail/RecordDotSyntaxFail10.stderr
• testsuite/tests/parser/should_fail/RecordDotSyntaxFail11.stderr
• testsuite/tests/parser/should_fail/RecordDotSyntaxFail13.stderr
• testsuite/tests/parser/should_fail/RecordDotSyntaxFail8.stderr
• testsuite/tests/parser/should_fail/T16270h.stderr
• + testsuite/tests/parser/should_fail/T26418.hs
• + testsuite/tests/parser/should_fail/T26418.stderr
• testsuite/tests/parser/should_fail/all.T
• + testsuite/tests/parser/should_run/T26415.hs
• + testsuite/tests/parser/should_run/T26415.stdout
• testsuite/tests/parser/should_run/all.T
• testsuite/tests/partial-sigs/should_compile/T21719.stderr
• testsuite/tests/perf/compiler/MultiLayerModulesDefsGhci.script
• testsuite/tests/perf/compiler/all.T
• testsuite/tests/plugins/annotation-plugin/SayAnnNames.hs
• testsuite/tests/plugins/late-plugin/LatePlugin.hs
• testsuite/tests/plugins/simple-plugin/Simple/ReplacePlugin.hs
• testsuite/tests/polykinds/T13393.stderr
• − testsuite/tests/process/process010.stdout-i386-unknown-solaris2
• + testsuite/tests/profiling/should_compile/T26056.hs
• testsuite/tests/profiling/should_compile/all.T
• testsuite/tests/quantified-constraints/T19690.stderr
• testsuite/tests/quantified-constraints/T19921.stderr
• testsuite/tests/quantified-constraints/T21006.stderr
• testsuite/tests/rep-poly/T12709.stderr
• testsuite/tests/roles/should_fail/RolesIArray.stderr
• + testsuite/tests/rts/ClosureTable.hs
• + testsuite/tests/rts/ClosureTable_c.c
• + testsuite/tests/rts/TimeoutQueue.c
• + testsuite/tests/rts/TimeoutQueue.stdout
• testsuite/tests/rts/all.T
• testsuite/tests/rts/exec_signals_child.c
• − testsuite/tests/rts/linker/T11223/T11223_link_order_a_b_2_fail.stderr-ws-32-mingw32
• − testsuite/tests/rts/linker/T11223/T11223_simple_duplicate_lib.stderr-ws-32-mingw32
• testsuite/tests/rts/linker/T11223/all.T
• testsuite/tests/rts/linker/T2615.hs
• − testsuite/tests/rts/outofmem.stderr-i386-apple-darwin
• − testsuite/tests/rts/outofmem.stderr-i386-unknown-mingw32
• − testsuite/tests/rts/outofmem.stderr-powerpc-apple-darwin
• testsuite/tests/simplCore/should_compile/DsSpecPragmas.hs
• testsuite/tests/simplCore/should_compile/DsSpecPragmas.stderr
• testsuite/tests/simplCore/should_compile/simpl017.stderr
• + testsuite/tests/tcplugins/T26395.hs
• + testsuite/tests/tcplugins/T26395.stderr
• + testsuite/tests/tcplugins/T26395_Plugin.hs
• testsuite/tests/tcplugins/all.T
• testsuite/tests/th/T10945.stderr
• testsuite/tests/th/T16180.hs
• testsuite/tests/th/TH_StaticPointers02.stderr
• testsuite/tests/typecheck/should_compile/T11339.stderr
• testsuite/tests/typecheck/should_compile/T14434.hs
• + testsuite/tests/typecheck/should_compile/T26376.hs
• + testsuite/tests/typecheck/should_compile/T26457.hs
• testsuite/tests/typecheck/should_compile/all.T
• testsuite/tests/typecheck/should_fail/DoExpansion3.stderr
• testsuite/tests/typecheck/should_fail/T12177.stderr
• testsuite/tests/typecheck/should_fail/T15801.stderr
• testsuite/tests/typecheck/should_fail/T18851.hs
• testsuite/tests/typecheck/should_fail/T19627.stderr
• testsuite/tests/typecheck/should_fail/T20666.stderr
• testsuite/tests/typecheck/should_fail/T20666a.stderr
• testsuite/tests/typecheck/should_fail/T20666b.stderr
• testsuite/tests/typecheck/should_fail/T22707.stderr
• testsuite/tests/typecheck/should_fail/T22912.stderr
• testsuite/tests/typecheck/should_fail/T23427.stderr
• testsuite/tests/typecheck/should_fail/T24064.stderr
• + testsuite/tests/typecheck/should_fail/T26255a.hs
• + testsuite/tests/typecheck/should_fail/T26255a.stderr
• + testsuite/tests/typecheck/should_fail/T26255b.hs
• + testsuite/tests/typecheck/should_fail/T26255b.stderr
• + testsuite/tests/typecheck/should_fail/T26255c.hs
• + testsuite/tests/typecheck/should_fail/T26255c.stderr
• + testsuite/tests/typecheck/should_fail/T26330.hs
• + testsuite/tests/typecheck/should_fail/T26330.stderr
• testsuite/tests/typecheck/should_fail/T8142.stderr
• testsuite/tests/typecheck/should_fail/T8603.stderr
• testsuite/tests/typecheck/should_fail/UnliftedNewtypesFamilyKindFail2.stderr
• testsuite/tests/typecheck/should_fail/all.T
• testsuite/tests/typecheck/should_fail/tcfail128.stderr
• testsuite/tests/typecheck/should_fail/tcfail153.stderr
• testsuite/tests/typecheck/should_fail/tcfail168.stderr
• testsuite/tests/typecheck/should_fail/tcfail177.stderr
• testsuite/tests/typecheck/should_fail/tcfail185.stderr
• testsuite/tests/typecheck/should_run/Typeable1.stderr
• + testsuite/tests/unboxedsums/UbxSumUnpackedSize.hs
• + testsuite/tests/unboxedsums/UbxSumUnpackedSize.stdout
• + testsuite/tests/unboxedsums/UbxSumUnpackedSize.stdout-ws-32
• testsuite/tests/unboxedsums/all.T
• testsuite/tests/unboxedsums/unboxedsums_unit_tests.hs
• utils/deriveConstants/Main.hs
• utils/genprimopcode/Main.hs
• utils/genprimopcode/Syntax.hs
• utils/ghc-pkg/Main.hs
• utils/ghc-pkg/ghc-pkg.cabal.in
• utils/ghc-toolchain/exe/Main.hs
• utils/ghc-toolchain/ghc-toolchain.cabal
• + utils/ghc-toolchain/src/GHC/Toolchain/Library.hs
• utils/ghc-toolchain/src/GHC/Toolchain/PlatformDetails.hs
• utils/ghc-toolchain/src/GHC/Toolchain/Target.hs
• utils/ghc-toolchain/src/GHC/Toolchain/Tools/Cc.hs
• utils/ghc-toolchain/src/GHC/Toolchain/Tools/Cpp.hs
• utils/ghc-toolchain/src/GHC/Toolchain/Tools/Cxx.hs
• utils/ghc-toolchain/src/GHC/Toolchain/Tools/Link.hs
• utils/haddock/haddock-api/src/Haddock/Backends/Hyperlinker.hs
• utils/haddock/haddock-api/src/Haddock/Backends/Hyperlinker/Renderer.hs
• utils/haddock/haddock-api/src/Haddock/Backends/Hyperlinker/Utils.hs
• utils/haddock/haddock-api/src/Haddock/InterfaceFile.hs
• utils/haddock/hypsrc-test/Main.hs
• utils/haddock/hypsrc-test/ref/src/Bug1091.html
• utils/haddock/hypsrc-test/ref/src/CPP.html
• utils/haddock/hypsrc-test/ref/src/Classes.html
• utils/haddock/hypsrc-test/ref/src/Constructors.html
• utils/haddock/hypsrc-test/ref/src/Identifiers.html
• utils/haddock/hypsrc-test/ref/src/LinkingIdentifiers.html
• utils/haddock/hypsrc-test/ref/src/Literals.html
• utils/haddock/hypsrc-test/ref/src/Operators.html
• utils/haddock/hypsrc-test/ref/src/Polymorphism.html
• utils/haddock/hypsrc-test/ref/src/PositionPragmas.html
• utils/haddock/hypsrc-test/ref/src/Quasiquoter.html
• utils/haddock/hypsrc-test/ref/src/Records.html
• utils/haddock/hypsrc-test/ref/src/TemplateHaskellQuasiquotes.html
• utils/haddock/hypsrc-test/ref/src/TemplateHaskellSplices.html
• utils/haddock/hypsrc-test/ref/src/Types.html
• utils/haddock/hypsrc-test/ref/src/UsingQuasiquotes.html
• utils/jsffi/dyld.mjs

The diff was not included because it is too large.