[all-commits] [llvm/llvm-project] c64f37: [X86] matchAddressRecursively - add XOR(X, MIN_SIG...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: c64f37f818b7a928b48540920d6e0c6df8903128
      https://github.com/llvm/llvm-project/commit/c64f37f818b7a928b48540920d6e0c6df8903128
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2022-04-01 (Fri, 01 Apr 2022)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
    M llvm/lib/Target/X86/X86InstrInfo.td
    M llvm/test/CodeGen/X86/xor-lea.ll

  Log Message:
  -----------
  [X86] matchAddressRecursively - add XOR(X, MIN_SIGNED_VALUE) handling

Allows us to fold XOR(X, MIN_SIGNED_VALUE) == ADD(X, MIN_SIGNED_VALUE) into LEA patterns

As mentioned on PR52267.

Differential Revision: https://reviews.llvm.org/D122815