[all-commits] [llvm/llvm-project] 7ef1b2: [AMDGPU][GISel] Fold 'min(min(x, y), z)' and 'max(ma...

[Elio via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7ef1b22c75da98b58e5a91cacabeac8e1356ad8f
      https://github.com/llvm/llvm-project/commit/7ef1b22c75da98b58e5a91cacabeac8e1356ad8f
  Author: Elio <xiongzile at bytedance.com>
  Date:   2026-06-06 (Sat, 06 Jun 2026)

  Changed paths:
    M llvm/lib/Target/AMDGPU/AMDGPUCombine.td
    M llvm/lib/Target/AMDGPU/AMDGPUGISel.td
    M llvm/lib/Target/AMDGPU/AMDGPURegBankCombiner.cpp
    M llvm/lib/Target/AMDGPU/SIInstructions.td
    A llvm/test/CodeGen/AMDGPU/GlobalISel/fmin3-fmax3-combine.ll
    A llvm/test/CodeGen/AMDGPU/GlobalISel/min3-max3-combine.ll
    M llvm/test/CodeGen/AMDGPU/ctlz.ll
    M llvm/test/CodeGen/AMDGPU/cttz.ll
    M llvm/test/CodeGen/AMDGPU/fmaximum3.v2f16.ll
    M llvm/test/CodeGen/AMDGPU/fminimum3.v2f16.ll
    M llvm/test/CodeGen/AMDGPU/vector-reduce-fmax.ll
    M llvm/test/CodeGen/AMDGPU/vector-reduce-fmin.ll
    M llvm/test/CodeGen/AMDGPU/vector-reduce-fminimum.ll
    M llvm/test/CodeGen/AMDGPU/vector-reduce-smax.ll
    M llvm/test/CodeGen/AMDGPU/vector-reduce-smin.ll
    M llvm/test/CodeGen/AMDGPU/vector-reduce-umax.ll
    M llvm/test/CodeGen/AMDGPU/vector-reduce-umin.ll

  Log Message:
  -----------
  [AMDGPU][GISel] Fold 'min(min(x,y),z)' and 'max(max(x,y),z)' into min3 and max3 (#200410)

Original PR: https://github.com/llvm/llvm-project/pull/124263
Fixes: https://github.com/llvm/llvm-project/issues/123079



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