[all-commits] [llvm/llvm-project] 47a170: [SelectionDAG][X86] Use disjoint flag in Selection...

[Craig Topper via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 47a1704ac94c8aeb1aa7e0fc438ff99d36b632c6
      https://github.com/llvm/llvm-project/commit/47a1704ac94c8aeb1aa7e0fc438ff99d36b632c6
  Author: Craig Topper <craig.topper at sifive.com>
  Date:   2024-01-03 (Wed, 03 Jan 2024)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
    M llvm/test/CodeGen/X86/addsub-constant-folding.ll
    M llvm/test/CodeGen/X86/or-lea.ll

  Log Message:
  -----------
  [SelectionDAG][X86] Use disjoint flag in SelectionDAG::isADDLike. (#76847)

Keep the haveNoCommonBitsSet check because we haven't started inferring
the flag yet.

I've added tests for two transforms, but these are not the only
transforms that use isADDLike.