[all-commits] [llvm/llvm-project] 07056c: [SystemZ] Use LCGR/AGHI for i64 XOR with -1 (#74882)

[Jonas Paulsson via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 07056c227456a63893cc809fadf62537863cb92d
      https://github.com/llvm/llvm-project/commit/07056c227456a63893cc809fadf62537863cb92d
  Author: Jonas Paulsson <paulson1 at linux.ibm.com>
  Date:   2023-12-11 (Mon, 11 Dec 2023)

  Changed paths:
    M llvm/lib/Target/SystemZ/SystemZISelDAGToDAG.cpp
    M llvm/lib/Target/SystemZ/SystemZInstrInfo.td
    M llvm/test/CodeGen/SystemZ/atomicrmw-nand-04.ll
    M llvm/test/CodeGen/SystemZ/xor-04.ll

  Log Message:
  -----------
  [SystemZ]  Use LCGR/AGHI for i64 XOR with -1 (#74882)

LCGR/AGHI is a more compact way of implementing a 64-bit NOT.