[all-commits] [llvm/llvm-project] e6c0bf: GlobalISel: Fix combine duplicating atomic loads

[Matt Arsenault via All-commits]

  Branch: refs/heads/users/arsenm/globalisel-fix-duplicating-atomic-loads
  Home:   https://github.com/llvm/llvm-project
  Commit: e6c0bf257510507bea11e9e8de2533cdd36cc13d
      https://github.com/llvm/llvm-project/commit/e6c0bf257510507bea11e9e8de2533cdd36cc13d
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2024-10-17 (Thu, 17 Oct 2024)

  Changed paths:
    M llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
    M llvm/test/CodeGen/AMDGPU/GlobalISel/atomic_load_flat.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/atomic_load_global.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/atomic_load_local_2.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/postlegalizer-combiner-sextload-from-sextinreg.mir

  Log Message:
  -----------
  GlobalISel: Fix combine duplicating atomic loads

The sext_inreg (load) combine was not deleting the old load instruction,
and it would never be deleted if volatile or atomic.


  Commit: 02d2bcc1c40165fa88bcec191738b74bdb4e23aa
      https://github.com/llvm/llvm-project/commit/02d2bcc1c40165fa88bcec191738b74bdb4e23aa
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2024-10-17 (Thu, 17 Oct 2024)

  Changed paths:
    M llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp

  Log Message:
  -----------
  Add comment


Compare: https://github.com/llvm/llvm-project/compare/203907314da8...02d2bcc1c401

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