[PATCH] D116375: [X86] Use bit test instructions to optimize some logic atomic operations

[Phoebe Wang via Phabricator via llvm-commits]

pengfei updated this revision to Diff 398418.
pengfei added a comment.
Herald added a subscriber: mgorny.

Add a new pass to hosit AND instructions that been split by other passes.
This fixes the failed example. Thanks a lot for Craig's helps!


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D116375/new/

https://reviews.llvm.org/D116375

Files:
  llvm/lib/Target/X86/CMakeLists.txt
  llvm/lib/Target/X86/X86.h
  llvm/lib/Target/X86/X86AtomicANDHoist.cpp
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/lib/Target/X86/X86ISelLowering.h
  llvm/lib/Target/X86/X86InstrCompiler.td
  llvm/lib/Target/X86/X86InstrInfo.td
  llvm/lib/Target/X86/X86TargetMachine.cpp
  llvm/test/CodeGen/X86/O0-pipeline.ll
  llvm/test/CodeGen/X86/atomic-bit-test.ll
  llvm/test/CodeGen/X86/opt-pipeline.ll

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