[PATCH] D25576: Add 64-bit MS _Interlocked functions as builtins again

[Martin Storsjö via cfe-commits]

mstorsjo added a comment.

> (should they be also on AArch64? I had problems with testing it for AArch64, so I left it)

Technically, I think they should be on AArch64 as well. But clang/LLVM probably doesn't support AArch64/Windows yet (I guess?), so testing it probably is impossible. When/if support later gets added for that, it's easy to complete these.

AArch64/Windows in general isn't available yet; the Windows 10 SDK contains some arm64 tools, and the Windows 10 SDK and MSVC 2015 headers have got ifdefs using _M_ARM64, but other than that, there's no public version of Visual Studio even having a compiler for it. So until then, and when someone tries to get clang/LLVM to support it, it's probably ok to just ignore it.


https://reviews.llvm.org/D25576