Hans Wennborg 5c3c51fe05 Implement _interlockedbittestandset as a builtin
It's used by MS headers in VS 2017 without including intrin.h, so we
can't implement it in the header anymore.

Differential Revision: https://reviews.llvm.org/D31736

llvm-svn: 299782
2017-04-07 16:41:47 +00:00
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2016-06-17 00:27:02 +00:00
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