[all-commits] [llvm/llvm-project] 2149aa: [X86] Add support for reusing ZF etc. from locked ...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2149aa73f640c96f278207f0cca630d5caf0a5ab
      https://github.com/llvm/llvm-project/commit/2149aa73f640c96f278207f0cca630d5caf0a5ab
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2021-04-25 (Sun, 25 Apr 2021)

  Changed paths:
    M llvm/lib/Target/X86/X86InstrInfo.cpp
    M llvm/test/CodeGen/X86/atomic-eflags-reuse.ll
    M llvm/test/CodeGen/X86/atomic-flags.ll

  Log Message:
  -----------
  [X86] Add support for reusing ZF etc. from locked XADD instructions (PR20841)

XADD has the same EFLAGS behaviour as ADD