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2 Commits

Author SHA1 Message Date
Andrea Di Biagio eb33134ce7 Simplify code; NFC. 
Also, moved test cases from CodeGen/X86/fold-buildvector-bug.ll into
CodeGen/X86/buildvec-insertvec.ll and regenerated CHECK lines using
update_llc_test_checks.py.

llvm-svn: 239142
 2015-06-05 10:29:55 +00:00
Michael Liao 4b7ccfcaad 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.

llvm-svn: 166288
 2012-10-19 17:15:18 +00:00