[all-commits] [llvm/llvm-project] ec1f28: AMDGPU/gfx12: avoid crashing on legacy waitcnt int...

[Nicolai Hähnle via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ec1f28dc97ce22ba5b3e6f95ff84414dfbda46b0
      https://github.com/llvm/llvm-project/commit/ec1f28dc97ce22ba5b3e6f95ff84414dfbda46b0
  Author: Nicolai Hähnle <nicolai.haehnle at amd.com>
  Date:   2024-05-15 (Wed, 15 May 2024)

  Changed paths:
    M llvm/lib/Target/AMDGPU/SIInsertWaitcnts.cpp
    M llvm/test/CodeGen/AMDGPU/waitcnt-preexisting.mir

  Log Message:
  -----------
  AMDGPU/gfx12: avoid crashing on legacy waitcnt intrinsics (#92306)

They *are* still accepted by the HW but have a conservative effect.

Leave them untouched since handling them would complicate the logic a
bit, and developers who code to such a low level really need to revisit
what they're doing anyway.



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