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

[Simon Pilgrim via Phabricator via cfe-commits]

RKSimon added a comment.

I agree that its not great, but I don't think we're going to do much better - and matching gcc behaviours does make sense here.


Repository:
  rC Clang

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  https://reviews.llvm.org/D59287/new/

https://reviews.llvm.org/D59287