[PATCH] D11382: x86 atomic: optimize a.store(reg op a.load(acquire), release)

[JF Bastien]

jfb updated this revision to Diff 30499.
jfb added a comment.

- *sd instructions are in SSE2.


http://reviews.llvm.org/D11382

Files:
  lib/Target/X86/X86ISelLowering.cpp
  lib/Target/X86/X86ISelLowering.h
  lib/Target/X86/X86InstrCompiler.td
  lib/Target/X86/X86MCInstLower.cpp
  test/CodeGen/X86/atomic_mi.ll

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