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Author SHA1 Message Date
Michael Liao
facace808c Lower BUILD_VECTOR to SHUFFLE + INSERT_VECTOR_ELT for X86 
- If INSERT_VECTOR_ELT is supported (above SSE2, either by custom
  sequence of legal insn), transform BUILD_VECTOR into SHUFFLE +
  INSERT_VECTOR_ELT if most of elements could be built from SHUFFLE with few
  (so far 1) elements being inserted.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166288 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-19 17:15:18 +00:00