[PATCH] D31736: Implement _interlockedbittestandset as a builtin

[Hans Wennborg via Phabricator via cfe-commits]

hans created this revision.

It's used by MS headers in VS 2017 without including intrin.h, so we can't implement it in the header anymore.


https://reviews.llvm.org/D31736

Files:
  include/clang/Basic/Builtins.def
  lib/CodeGen/CGBuiltin.cpp
  lib/Headers/intrin.h
  test/CodeGen/ms-intrinsics.c

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