[PATCH] D154133: [amdgpu] start documenting amdgpu support by clang

[Johannes Doerfert via Phabricator via cfe-commits]

jdoerfert added a comment.

I would recommend to introduce `__AMDGCN_WAVEFRONT_SIZE__` as an alias for `'__AMDGCN_WAVEFRONT_SIZE` and at some point to deprecate the latter.
Otherwise, LGTM


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https://reviews.llvm.org/D154133