[PATCH] D59287: [X86] Only define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_16 in 64-bit mode.

[JF Bastien via Phabricator via cfe-commits]

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

OK, that seems unfortunate but unlikely and consistency terrible with GCC. Let's do it.


Repository:
  rC Clang

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D59287/new/

https://reviews.llvm.org/D59287