[all-commits] [llvm/llvm-project] 37c341: Revert "AMDGPU: Don't canonicalize fminnum/fmaxnum...

[Matt Arsenault via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 37c341df283fa028c6e3849d4c024456e4d197c5
      https://github.com/llvm/llvm-project/commit/37c341df283fa028c6e3849d4c024456e4d197c5
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2025-02-20 (Thu, 20 Feb 2025)

  Changed paths:
    M llvm/include/llvm/CodeGen/GlobalISel/LegalizerHelper.h
    M llvm/include/llvm/CodeGen/TargetLowering.h
    M llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp
    M llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
    M llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
    M llvm/lib/Target/AMDGPU/GCNSubtarget.h
    M llvm/lib/Target/AMDGPU/SIISelLowering.cpp
    M llvm/test/CodeGen/AMDGPU/GlobalISel/atomicrmw_fmax.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/atomicrmw_fmin.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/clamp-fmed3-const-combine.ll
    M llvm/test/CodeGen/AMDGPU/GlobalISel/fmed3-min-max-const-combine.ll
    M llvm/test/CodeGen/AMDGPU/buffer-fat-pointer-atomicrmw-fmax.ll
    M llvm/test/CodeGen/AMDGPU/buffer-fat-pointer-atomicrmw-fmin.ll
    M llvm/test/CodeGen/AMDGPU/clamp.ll
    M llvm/test/CodeGen/AMDGPU/flat-atomicrmw-fmax.ll
    M llvm/test/CodeGen/AMDGPU/flat-atomicrmw-fmin.ll
    M llvm/test/CodeGen/AMDGPU/fmin3.ll
    M llvm/test/CodeGen/AMDGPU/global-atomicrmw-fmax.ll
    M llvm/test/CodeGen/AMDGPU/global-atomicrmw-fmin.ll
    M llvm/test/CodeGen/AMDGPU/local-atomicrmw-fmax.ll
    M llvm/test/CodeGen/AMDGPU/local-atomicrmw-fmin.ll
    M llvm/test/CodeGen/AMDGPU/minmax.ll

  Log Message:
  -----------
  Revert "AMDGPU: Don't canonicalize fminnum/fmaxnum if targets support IEEE fminimum(maximum)_num (#127711)"

This reverts commit 36eaf0daf5d6dd665d7c7a9ec38ea22f27709fed.

This is not a sound approach to dealing with this instruction change.
The new behavior is a different opcode pair, not a modifier on the
existing opcode.



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