[PATCH] D11804: Fix an alignment error in `llvm::expandAtomicRMWToCmpXchg` without breaking the build where X86 isn't enabled.

[JF Bastien via llvm-commits]

jfb accepted this revision.
jfb added a comment.
This revision is now accepted and ready to land.

lgtm, sorry folks for not seeing the breakage earlier.


Repository:
  rL LLVM

http://reviews.llvm.org/D11804