[all-commits] [llvm/llvm-project] b568d3: [X86] Add vector support to sub(C1, xor(X, C2)) ->...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b568d3d6c915a515624f6292af0785c43ffaba37
      https://github.com/llvm/llvm-project/commit/b568d3d6c915a515624f6292af0785c43ffaba37
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2021-02-21 (Sun, 21 Feb 2021)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/combine-sub.ll

  Log Message:
  -----------
  [X86] Add vector support to sub(C1, xor(X, C2)) -> add(xor(X, ~C2), C1+1) fold.