[all-commits] [llvm/llvm-project] 9872cf: [X86] Add 'sub C1, (xor X, C1) -> add (xor X, ~C2)...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9872cfc5b1774a9d0ab777a3c905013619db5c32
      https://github.com/llvm/llvm-project/commit/9872cfc5b1774a9d0ab777a3c905013619db5c32
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2021-02-21 (Sun, 21 Feb 2021)

  Changed paths:
    M llvm/test/CodeGen/X86/combine-sub.ll

  Log Message:
  -----------
  [X86] Add 'sub C1, (xor X, C1) -> add (xor X, ~C2), C1+1' tests

This is also in sub.ll but that's for a specific i686 pattern - this adds x86_64 and vector tests