[all-commits] [llvm/llvm-project] 093c76: [SelectionDAG] Preserve IR alignment on atomicrmw/...

[Justin Lebar via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 093c76a9b101e4ed14854daad66223463d86d2ba
      https://github.com/llvm/llvm-project/commit/093c76a9b101e4ed14854daad66223463d86d2ba
  Author: Justin Lebar <justin.lebar at gmail.com>
  Date:   2026-05-30 (Sat, 30 May 2026)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
    A llvm/test/CodeGen/X86/atomic-mmo-align.ll

  Log Message:
  -----------
  [SelectionDAG] Preserve IR alignment on atomicrmw/cmpxchg MMOs (#200332)

Previously SelectionDAG used the natural alignment of the value type,
even if the instruction specified a different alignment.

This bug was found by a large run of Opus 4.7 looking for bugs in LLVM.



To unsubscribe from these emails, change your notification settings at https://github.com/llvm/llvm-project/settings/notifications