[all-commits] [llvm/llvm-project] 6fdaaa: [AMDGPU] SIPeepholeSDWA: Disable on existing SDWA ...

[Frederik Harwath via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 6fdaaafd89d7cbc15dafe3ebf1aa3235d148aaab
      https://github.com/llvm/llvm-project/commit/6fdaaafd89d7cbc15dafe3ebf1aa3235d148aaab
  Author: Frederik Harwath <frederik.harwath at amd.com>
  Date:   2025-01-23 (Thu, 23 Jan 2025)

  Changed paths:
    M llvm/lib/Target/AMDGPU/SIPeepholeSDWA.cpp
    M llvm/test/CodeGen/AMDGPU/GlobalISel/saddsat.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/ssubsat.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/uaddsat.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/usubsat.ll
    M llvm/test/CodeGen/AMDGPU/buffer-fat-pointer-atomicrmw-fadd.ll
    M llvm/test/CodeGen/AMDGPU/flat-atomicrmw-fadd.ll
    M llvm/test/CodeGen/AMDGPU/flat-atomicrmw-fsub.ll
    M llvm/test/CodeGen/AMDGPU/global-atomicrmw-fadd.ll
    M llvm/test/CodeGen/AMDGPU/global-atomicrmw-fsub.ll
    M llvm/test/CodeGen/AMDGPU/idot4u.ll
    M llvm/test/CodeGen/AMDGPU/local-atomicrmw-fadd.ll
    M llvm/test/CodeGen/AMDGPU/local-atomicrmw-fsub.ll
    M llvm/test/CodeGen/AMDGPU/permute_i8.ll
    A llvm/test/CodeGen/AMDGPU/sdwa-peephole-instr-combine-sel.ll
    A llvm/test/CodeGen/AMDGPU/sdwa-peephole-instr-combine-sel.mir
    M llvm/test/CodeGen/AMDGPU/sdwa-peephole-instr-gfx10.mir
    M llvm/test/CodeGen/AMDGPU/sdwa-peephole-instr.mir
    M llvm/test/CodeGen/AMDGPU/sdwa-preserve.mir

  Log Message:
  -----------
  [AMDGPU] SIPeepholeSDWA: Disable on existing SDWA instructions (#123942)

This is meant as a short-term workaround for an invalid conversion in
this pass that occurs because existing SDWA selections are not correctly
taken into account during the conversion.

See the draft PR #123221 for an attempt to fix the actual issue.

---------

Co-authored-by: Frederik Harwath <fharwath at amd.com>



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