[PATCH] D29399: [X86][SSE] Combine shuffle nodes with multiple uses if all the users are being combined.

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon updated this revision to Diff 87117.
RKSimon added a comment.

Updated with additional tests - both are stripped down examples of a partially combined build_vector and shuffles all from a single vector source.


Repository:
  rL LLVM

https://reviews.llvm.org/D29399

Files:
  include/llvm/CodeGen/SelectionDAGNodes.h
  lib/CodeGen/SelectionDAG/SelectionDAG.cpp
  lib/Target/X86/X86ISelLowering.cpp
  test/CodeGen/X86/clear_upper_vector_element_bits.ll
  test/CodeGen/X86/vector-shuffle-combining-avx2.ll
  test/CodeGen/X86/vector-shuffle-combining-ssse3.ll

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