[PATCH] D53919: [X86] Don't allow illegal vector types to return by direct value on x86-64.

[H.J Lu via Phabricator via cfe-commits]

hjl.tools added a comment.

In https://reviews.llvm.org/D53919#1282797, @efriedma wrote:

> I just tried clang 3.3, and as far as I can tell it behaves the same way as trunk.
>
> If the argument is that we should be compatible with gcc on Linux, that's fine, but we should explicitly state that in a comment.


Does clang 3.3 support AVX512?


Repository:
  rC Clang

https://reviews.llvm.org/D53919