[PATCH] D37232: [InstCombine] Teach select01 helper of foldSelectIntoOp to handle vector splats

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.

We were handling some vectors in foldSelectIntoOp, but not if the operand of the bin op was any kind of vector constant. This patch fixes it to treat vector splats the same as scalars.


https://reviews.llvm.org/D37232

Files:
  lib/Transforms/InstCombine/InstCombineSelect.cpp
  test/Transforms/InstCombine/select.ll
  test/Transforms/LoopVectorize/phi-cost.ll

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