[PATCH] D137341: [VectorCombine] widen a load with subvector insert

[Sanjay Patel via Phabricator via llvm-commits]

spatel updated this revision to Diff 473502.
spatel marked an inline comment as done.
spatel added a comment.

Patch updated:
There are no guarantees on what shuffles the other vectorizer passes can produce, and we don't know that instcombine is run before this pass, so added code/test to handle a non-canonical identity shuffle that is choosing from operand 1 of the shuffle.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D137341/new/

https://reviews.llvm.org/D137341

Files:
  llvm/lib/Transforms/Vectorize/VectorCombine.cpp
  llvm/test/Transforms/VectorCombine/X86/load-widening.ll

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