[PATCH] D35788: [DAGCombiner] Extending pattern detection for vector shuffle.

[Jatin Bhateja via Phabricator via llvm-commits]

jbhateja updated this revision to Diff 108409.
jbhateja added a comment.

Updating post rebase.

Splitting of a vector argument of shuffle vector based on extracted shuffle_mask from the build_vector 
is pattern independent w.r.t shuffle mask and looks at the maximal index of vector access.


https://reviews.llvm.org/D35788

Files:
  lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  test/CodeGen/X86/oddshuffles.ll
  test/CodeGen/X86/vector-shuffle-512-v16.ll
  test/CodeGen/X86/vector-shuffle-512-v8.ll

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