[PATCH] SSE pslldq/psrldq shuffle mask decodes

[Simon Pilgrim]

Hi Quentin,

> Could you add test cases with the ymm versions?

Chandler can confirm but I don't think we have anything that creates vec256 byte rotates/shifts yet (and http://reviews.llvm.org/D5699 doesn't help either - it only improves the vec128 case) - if you wish I can remove the ymm support from X86InstComments.cpp to make this clear and add it back in a future patch that adds better support?

Simon.

http://reviews.llvm.org/D5598