rsmith accepted this revision.
rsmith added a comment.
This revision is now accepted and ready to land.
I'm not thrilled about adding yet more predefined macros, but it really doesn't
make sense for libc++ to depend on `__GCC_*` macros when targeting Windows, nor
for these to be Windows-only, so let's do it.
================
Comment at: lib/Frontend/InitPreprocessor.cpp:910-912
+ addLockFreeMacros("__CLANG_ATOMIC");
+ if (!LangOpts.MSVCCompat)
+ addLockFreeMacros("__GCC_ATOMIC");
----------------
I'd sink the `_` into the prefix too, but this looks fine either way.
https://reviews.llvm.org/D32265
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