[PATCH] D28777: [InstCombine][SSE] Add DemandedElts support for PACKSS/PACKUS instructions

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon updated this revision to Diff 85040.
RKSimon added a comment.

Removed duplication of each operand by putting the demanded elts code in a loop.


Repository:
  rL LLVM

https://reviews.llvm.org/D28777

Files:
  lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp
  test/Transforms/InstCombine/x86-pack.ll

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