[PATCH] D14901: [X86][SSE] Improve i16 splatting shuffles

[Simon Pilgrim via llvm-commits]

RKSimon added a comment.

I've raised a bugzilla: https://llvm.org/bugs/show_bug.cgi?id=26183 to discuss what the threshold for combines to PSHUFB should be and how it should be controlled.


Repository:
  rL LLVM

http://reviews.llvm.org/D14901