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3093316
2014 Sep 20
2
[LLVMdev] Please benchmark new x86 vector shuffle lowering, planning to make it the default very soon!
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