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

[Craig Topper via Phabricator via cfe-commits]

craig.topper added a comment.

Most if not all of the test cases in test/CodeGen/X86/atomic128.ll fail with a fatal error if you run it in 32-bit mode with -mattr=+cx16  Looks like the backend is also bad at checking 64 bit mode.


Repository:
  rC Clang

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

https://reviews.llvm.org/D59287