[PATCH] D66718: [DAGCombiner] (insert_vector_elt (vector_shuffle X, Y), (extract_vector_elt X, N), IdxC) -> (vector_shuffle X, Y)

[Amaury SECHET via Phabricator via llvm-commits]

deadalnix updated this revision to Diff 217061.
deadalnix added a comment.

- Add comments
- dyn_cast -> cast


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D66718/new/

https://reviews.llvm.org/D66718

Files:
  lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  test/CodeGen/X86/madd.ll
  test/CodeGen/X86/vector-shuffle-combining.ll

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