[PATCH] SSE pslldq/psrldq shuffle mask decodes

[Chandler Carruth]

On Fri, Oct 10, 2014 at 4:12 AM, Simon Pilgrim <llvm-dev at redking.me.uk>
wrote:

> Chandler can confirm but I don't think we have anything that creates
> vec256 byte rotates/shifts


You could perhaps use an x86 intrinsic to manually trigger an instruction.
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