[PATCH] X86: sink splat-shuffle into block doing a shift.

Nadav Rotem nrotem at apple.com
Mon Feb 17 11:24:16 PST 2014


  Hi Tim,

  This function answers the question: are vector shifts expensive? AFAIK 8bit shifts are expensive, so I don’t understand why there is a different handling for 8bit and 16bit shifts.  Everything else LGTM.

  Thanks,
  Nadav

http://llvm-reviews.chandlerc.com/D2816



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