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

[Jim Grosbach]

> On Sep 10, 2014, at 2:10 PM, Chandler Carruth <chandlerc at google.com> wrote:
> 
> 
> On Wed, Sep 10, 2014 at 12:31 PM, Jim Grosbach <grosbach at apple.com <mailto:grosbach at apple.com>> wrote:
> What MC pass? Are you using the acronym generically rather than referring specifically to the MC layer? This sort of transform is almost certainly better done on MachineInstr rather than MCInst.
> 
> I fat-fingered it, I was imagining an MI combine pass.

OK, cool. Panic averted. I post-regalloc peephole or something like that sounds totally reasonable. Thanks. :)

-Jim
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