[PATCH] D17633: [X86] Reuse EFLAGS and form LOCKed ops when only user is SETCC.

[Ahmed Bougacha via llvm-commits]

ab updated this revision to Diff 49245.
ab added a comment.

Flip condition to make it more digestible.


http://reviews.llvm.org/D17633

Files:
  lib/Target/X86/X86ISelLowering.cpp
  test/CodeGen/X86/atomic-eflags-reuse.ll

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