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On Sat, Sep 20, 2014 at 7:12 AM, Simon Pilgrim <llvm-dev at redking.me.uk> wrote: > Hi Andrea / Chandler / Quentin, > > If AVX is available I would expect the vpermilps/vpermilpd instruction to > be used for all float/double single vector shuffles, especially as it can > deal with the folded load case as well - this would avoid the integer/float > execution domain

...urious, how important is this? This lowering has always seemed deeply magical and unlikely to be necessary in practice. palignr at least allows blending. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20140923/a5156662/attachment.html>