[PATCH] D120199: [X86] Use bit test instructions to optimize some logic atomic operations

[Phoebe Wang via Phabricator via llvm-commits]

pengfei updated this revision to Diff 410429.
pengfei added a comment.

Add attribute `MOVolatile`.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D120199/new/

https://reviews.llvm.org/D120199

Files:
  llvm/include/llvm/CodeGen/TargetLowering.h
  llvm/include/llvm/IR/IntrinsicsX86.td
  llvm/lib/CodeGen/AtomicExpandPass.cpp
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/lib/Target/X86/X86ISelLowering.h
  llvm/lib/Target/X86/X86InstrCompiler.td
  llvm/test/CodeGen/X86/atomic-bit-test.ll

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