[all-commits] [llvm/llvm-project] 4c42ab: [DAGCombiner] Change foldAndOrOfSETCC() to optimiz...

Konstantina Mitropoulou via All-commits all-commits at lists.llvm.org
Mon Jul 17 17:14:29 PDT 2023


  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4c42ab1199e9729c2f3a74f77ba765e4f9190d57
      https://github.com/llvm/llvm-project/commit/4c42ab1199e9729c2f3a74f77ba765e4f9190d57
  Author: Konstantina Mitropoulou <Konstantina.Mitropoulou at amd.com>
  Date:   2023-07-17 (Mon, 17 Jul 2023)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
    M llvm/test/CodeGen/AArch64/vecreduce-bool.ll
    M llvm/test/CodeGen/AMDGPU/combine-cond-add-sub.ll
    M llvm/test/CodeGen/AMDGPU/combine_andor_with_cmps.ll
    M llvm/test/CodeGen/PowerPC/setcc-logic.ll
    M llvm/test/CodeGen/RISCV/zbb-cmp-combine.ll
    M llvm/test/CodeGen/X86/movmsk-cmp.ll

  Log Message:
  -----------
  [DAGCombiner] Change foldAndOrOfSETCC() to optimize and/or patterns

CMP(A,C)||CMP(B,C) => CMP(MIN/MAX(A,B), C)
CMP(A,C)&&CMP(B,C) => CMP(MIN/MAX(A,B), C)

This first patch handles integer types.

Reviewed By: craig.topper

Differential Revision: https://reviews.llvm.org/D153502




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