[all-commits] [llvm/llvm-project] c80282: AMDGPU: Directly select minimumnum/maximumnum with...

[Matt Arsenault via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c80282d333d7248c8a34694ce1bec9a40681c1c5
      https://github.com/llvm/llvm-project/commit/c80282d333d7248c8a34694ce1bec9a40681c1c5
  Author: Matt Arsenault <Matthew.Arsenault at amd.com>
  Date:   2025-06-18 (Wed, 18 Jun 2025)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPUInstructions.td
    M llvm/lib/Target/AMDGPU/AMDGPULegalizerInfo.cpp
    M llvm/lib/Target/AMDGPU/AMDGPURegisterBankInfo.cpp
    M llvm/lib/Target/AMDGPU/SIISelLowering.cpp
    M llvm/lib/Target/AMDGPU/SIISelLowering.h
    M llvm/lib/Target/AMDGPU/SIInstructions.td
    M llvm/test/CodeGen/AMDGPU/fneg-combines.new.ll
    M llvm/test/CodeGen/AMDGPU/maximumnum.ll
    M llvm/test/CodeGen/AMDGPU/minimumnum.ll

  Log Message:
  -----------
  AMDGPU: Directly select minimumnum/maximumnum with ieee_mode=0 (#141903)

The hardware min/max follow the IR rules with IEEE mode disabled,
so we can avoid the canonicalizes of the input. We lose the quieting
of a signaling nan if both inputs are nans, but we only require that
with strictfp.



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