[all-commits] [llvm/llvm-project] 3cac26: [GISel] Combine `(neg (min/max x, (neg x)))` into ...

[Min-Yih Hsu via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 3cac26f5419b68d37e1919001e1c46a765df294f
      https://github.com/llvm/llvm-project/commit/3cac26f5419b68d37e1919001e1c46a765df294f
  Author: Min-Yih Hsu <min.hsu at sifive.com>
  Date:   2025-01-02 (Thu, 02 Jan 2025)

  Changed paths:
    M llvm/include/llvm/CodeGen/GlobalISel/CombinerHelper.h
    M llvm/include/llvm/CodeGen/GlobalISel/Utils.h
    M llvm/include/llvm/Target/GlobalISel/Combine.td
    M llvm/lib/CodeGen/GlobalISel/CombinerHelper.cpp
    M llvm/lib/CodeGen/GlobalISel/Utils.cpp
    M llvm/lib/Target/RISCV/RISCVCombine.td
    A llvm/test/CodeGen/RISCV/GlobalISel/combine-neg-abs.ll

  Log Message:
  -----------
  [GISel] Combine `(neg (min/max x, (neg x)))` into `(max/min x, (neg x))` (#120998)

This is the GISel version of #120666. Also supports both unsigned and
signed version of min & max.



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