[PATCH] D12125: [DAGCombiner] Fold CONCAT_VECTORS of EXTRACT_SUBVECTOR (or undef) to VECTOR_SHUFFLE.

[Simon Pilgrim via llvm-commits]

This revision was automatically updated to reflect the committed changes.
Closed by commit rL245490: [DAGCombiner] Fold CONCAT_VECTORS of EXTRACT_SUBVECTOR (or undef) to… (authored by RKSimon).

Changed prior to commit:
  http://reviews.llvm.org/D12125?vs=32541&id=32603#toc

Repository:
  rL LLVM

http://reviews.llvm.org/D12125

Files:
  llvm/trunk/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
  llvm/trunk/test/CodeGen/X86/pr15267.ll
  llvm/trunk/test/CodeGen/X86/vector-shuffle-256-v16.ll
  llvm/trunk/test/CodeGen/X86/vector-shuffle-256-v4.ll
  llvm/trunk/test/CodeGen/X86/vector-shuffle-256-v8.ll

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