[PATCH] D101900: [InstCombine] Fold extractelement + vector GEP with one use

[David Sherwood via Phabricator via llvm-commits]

david-arm updated this revision to Diff 343661.
david-arm edited the summary of this revision.
david-arm added a comment.

- Tried to improve the commit message to explain why I've chosed to unconditionall apply the fold for all cases, not just splats.
- Added extra negative test for GEPs with vector of ptrs + vector of indices.
- Changed code to assume GEP result is always a VectorType.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D101900/new/

https://reviews.llvm.org/D101900

Files:
  llvm/lib/Transforms/InstCombine/InstCombineVectorOps.cpp
  llvm/test/Transforms/InstCombine/gep-vector-indices.ll
  llvm/test/Transforms/InstCombine/vec_demanded_elts-inseltpoison.ll
  llvm/test/Transforms/InstCombine/vec_demanded_elts.ll

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