Ben Gamari pushed to branch wip/backports-9.14 at Glasgow Haskell Compiler / GHC

Commits:

• 6576e711
  by Ben Gamari at 2025-08-12T12:45:20-04:00

  Kill IOPort#
  
  This type is unnecessary, having been superceded by `MVar` and a rework
  of WinIO's blocking logic.
  
  See #20947.
  
  See https://github.com/haskell/core-libraries-committee/issues/213.
  
  (cherry picked from commit 34fc50c13b47842e0d1f9879285a68b06215c16b)
  

• bf3a76e1
  by Zubin Duggal at 2025-08-12T12:45:20-04:00

  compiler: Export a version of `newNameCache` that is not prone to footguns.
  `newNameCache` must be initialized with both a non-"reserved" unique tag, as well
  as a list of known key names. Failing to do so results in hard to debug unique conflicts.
  
  It is difficult for API users to tell which unique tags are safe to use. So instead of leaving
  this up to the user to decide, we now export a version of `newNameCache` which uses a guaranteed
  non-reserved unique tag. In fact, this is now the way the unique tag is initialized for all invocations
  of the compiler.
  
  The original version of `newNameCache` is now exported as `newNameCache'` for advanced users.
  
  We also deprecate `initNameCache` as it is also prone to footguns and is completely subsumed in
  functionality by `newNameCache` and `newNameCache'`.
  
  Fixes #26135 and #26055
  
  (cherry picked from commit bcdec6572a098f984efeb85bf45ff7c0b5d717af)
  

• d832844a
  by Ben Gamari at 2025-08-12T12:45:20-04:00

  testsuite/recomp015: Ignore stderr
  
  This is necessary since ld.bfd complains
  that we don't have a .note.GNU-stack section,
  potentially resulting in an executable stack.
  
  (cherry picked from commit 637bb53825b9414f7c7dbed4cc3e5cc1ed4d2329)
  

• 5b1d9b41
  by Ben Gamari at 2025-08-12T12:45:20-04:00

  configure: Drop probing of ld.gold
  
  As noted in #25716, `gold` has been dropped from binutils-2.44.
  
  Fixes #25716.
  
  Metric Increase:
      size_hello_artifact_gzip
      size_hello_unicode_gzip
      ghc_prim_so
  
  (cherry picked from commit c635f164cb62bcb3f34166adc24e5a9437415311)
  

• a444cab6
  by fendor at 2025-08-13T09:20:59-04:00

  Bump GHC on darwin CI to 9.10.1
  
  (cherry picked from commit 358bc4fc8324a0685f336142d0d608cbd51d54f9)
  

• 2391e2cf
  by Zubin Duggal at 2025-08-13T09:59:41-04:00

  ci: upgrade bootstrap compiler on windows to 9.10.1
  
  (cherry picked from commit c8d76a2994b8620c54adc2069f4728135d6b5059)
  

• db5147a2
  by Ben Gamari at 2025-08-13T10:01:43-04:00

  Accept performance shifts
  
  Metric Increase:
      WWRec
  

47 changed files:

• .gitlab/darwin/toolchain.nix
• .gitlab/generate-ci/gen_ci.hs
• .gitlab/jobs.yaml
• compiler/GHC/Builtin/Names.hs
• compiler/GHC/Builtin/Types/Prim.hs
• compiler/GHC/Builtin/primops.txt.pp
• compiler/GHC/Driver/Main.hs
• compiler/GHC/StgToCmm/Prim.hs
• compiler/GHC/StgToJS/Prim.hs
• compiler/GHC/Types/Name/Cache.hs
• libraries/base/base.cabal.in
• libraries/base/changelog.md
• libraries/base/src/GHC/Exts.hs
• − libraries/base/src/GHC/IOPort.hs
• libraries/ghc-heap/GHC/Exts/Heap/Closures.hs
• libraries/ghc-internal/ghc-internal.cabal.in
• libraries/ghc-internal/src/GHC/Internal/Event/Windows.hsc
• libraries/ghc-internal/src/GHC/Internal/Event/Windows/Thread.hs
• libraries/ghc-internal/src/GHC/Internal/Exts.hs
• libraries/ghc-internal/src/GHC/Internal/IO/Buffer.hs
• libraries/ghc-internal/src/GHC/Internal/IO/Windows/Handle.hsc
• − libraries/ghc-internal/src/GHC/Internal/IOPort.hs
• libraries/ghc-internal/src/GHC/Internal/Prim/PtrEq.hs
• libraries/ghc-prim/changelog.md
• m4/find_ld.m4
• rts/Prelude.h
• rts/PrimOps.cmm
• rts/RtsSymbols.c
• rts/external-symbols.list.in
• rts/include/stg/MiscClosures.h
• rts/include/stg/SMP.h
• rts/win32/AsyncWinIO.c
• rts/win32/libHSghc-internal.def
• testsuite/tests/driver/recomp015/all.T
• testsuite/tests/hiefile/should_run/TestUtils.hs
• testsuite/tests/interface-stability/base-exports.stdout
• testsuite/tests/interface-stability/base-exports.stdout-javascript-unknown-ghcjs
• testsuite/tests/interface-stability/base-exports.stdout-mingw32
• testsuite/tests/interface-stability/base-exports.stdout-ws-32
• testsuite/tests/interface-stability/ghc-experimental-exports.stdout
• testsuite/tests/interface-stability/ghc-experimental-exports.stdout-mingw32
• testsuite/tests/interface-stability/ghc-prim-exports.stdout
• testsuite/tests/interface-stability/ghc-prim-exports.stdout-mingw32
• testsuite/tests/primops/should_run/UnliftedIOPort.hs
• testsuite/tests/primops/should_run/all.T
• utils/genprimopcode/Main.hs
• utils/ghc-toolchain/src/GHC/Toolchain/Tools/Link.hs

The diff was not included because it is too large.