[PATCH] D89197: [X86] Support -march=x86-64-v[234]

[Fangrui Song via Phabricator via cfe-commits]

MaskRay added inline comments.


================
Comment at: clang/test/Preprocessor/predefined-arch-macros-x86.c:20
+
+/// TODO: __LAHF_SAHF__
+// X86_64_V2:      #define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_16 1
----------------
I'll add it after D89198 is accepted.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D89197/new/

https://reviews.llvm.org/D89197