[PATCH] D75917: Expose llvm fence instruction as clang intrinsic

[Jon Chesterfield via Phabricator via cfe-commits]

JonChesterfield added a subscriber: jdoerfert.
JonChesterfield added a comment.

@jdoerfert this is one of the two intrinsics needed to drop the .ll source from the amdgcn deviceRTL. The other is atomic_inc.


Repository:
  rC Clang

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  https://reviews.llvm.org/D75917/new/

https://reviews.llvm.org/D75917