[PATCH] D12052: [X86][SSE] Add _mm_undefined_* intrinsics

[Michael Kuperstein via cfe-commits]

mkuper added a comment.

I think this is slightly less elegant than having a generic builtin, but I'm just fine with it, especially if David/Eric prefer it to the generic version.


Repository:
  rL LLVM

http://reviews.llvm.org/D12052