Marge Bot pushed to branch wip/marge_bot_batch_merge_job at Glasgow Haskell Compiler / GHC

Commits:

• a724ef5f
  by Cheng Shao at 2026-07-14T12:39:12-04:00

  hadrian: fix HLS support
  
  This patch fixes hadrian's HLS support so one can rely on HLS when
  working on the hadrian codebase. Fixes #27480.
  
  Not building/linking shared libraries for hadrian is a severely
  premature optimization; this top-level setting in `cabal.project` only
  affects home packages while the dependencies in the cabal store are
  built with vanilla/dynamic anyway, and even adding dynamic builds to
  home packages would not be costly due to cabal's usage of
  `-dynamic-too`.
  

• 5b8dfeb2
  by Cheng Shao at 2026-07-14T12:39:12-04:00

  compiler: fix miscompiled %load_relaxed, add missing %store_relaxed
  
  This patch fixes the %load_relaxed cmm primop compilation logic to
  correctly use relaxed memory ordering, and adds the missing
  %store_relaxed primop. Parsing logic of %load/%store with explicit
  ordering is covered in the AtomicFetch test case. Fixes #27483.
  
  Co-authored-by: Codex <codex@openai.com>
  

• de07f85c
  by Alan Zimmerman at 2026-07-14T12:39:13-04:00

  EPA: Keep binds and sigs together in HsValBindsLR
  
  We combine them into a single list for GhcPs, wrapped in the
  ValBind data type, which is the bind equivalent of ValD, having
  constructors for binds and sigs.
  
  This simplifies exact print processing, especially when using it to
  update the contents of local binds, as we no longer need AnnSortKey
  BindTag
  

• 54e8aa69
  by Andreas Klebinger at 2026-07-14T12:39:14-04:00

  Bump nofib submodule to account for MonoLocalBinds.
  
  New versions of GHC enable MonoLocalBinds by default.
  This breaks some of the benchmarks. I've fixed this and
  this bump pulls in that fix.
  

• 05cf34f9
  by Cheng Shao at 2026-07-14T12:39:15-04:00

  testsuite: fix bytecodeIPE test under +ipe flavours
  
  This patch fixes the bytecodeIPE test under +ipe flavours. It used to
  fail under +ipe because the RTS is built with IPE info, then
  stg_AP_info in RTS carries IPE info, so whereFrom wouldn't return
  Nothing. Now the test checks IPE info of a datacon in the ghci-loaded
  module which is not affected by whether the RTS is built with IPE info
  or not. Fixes #27498.
  
  Co-authored-by: Codex <codex@openai.com>
  

32 changed files:

• + changelog.d/fix-cmm-atomic-load-store
• compiler/GHC/Cmm/Parser.y
• compiler/GHC/Hs/Binds.hs
• compiler/GHC/Hs/Instances.hs
• compiler/GHC/Hs/Utils.hs
• compiler/GHC/HsToCore/Quote.hs
• compiler/GHC/HsToCore/Ticks.hs
• compiler/GHC/Iface/Ext/Ast.hs
• compiler/GHC/Parser/Annotation.hs
• compiler/GHC/Parser/PostProcess.hs
• compiler/GHC/Rename/Bind.hs
• compiler/GHC/Rename/Expr.hs
• compiler/GHC/Rename/Module.hs
• compiler/GHC/Rename/Names.hs
• compiler/GHC/Rename/Utils.hs
• compiler/GHC/Runtime/Eval.hs
• compiler/GHC/Tc/Deriv.hs
• compiler/GHC/ThToHs.hs
• compiler/Language/Haskell/Syntax/Binds.hs
• compiler/Language/Haskell/Syntax/Extension.hs
• ghc/GHCi/UI.hs
• hadrian/cabal.project
• nofib
• testsuite/tests/cmm/should_run/AtomicFetch.hs
• testsuite/tests/cmm/should_run/AtomicFetch_cmm.cmm
• testsuite/tests/ghci/scripts/bytecodeIPE.hs
• testsuite/tests/parser/should_compile/DumpSemis.stderr
• testsuite/tests/printer/Test20297.stdout
• utils/check-exact/ExactPrint.hs
• utils/check-exact/Main.hs
• utils/check-exact/Transform.hs
• utils/check-exact/Utils.hs

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