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Author SHA1 Message Date
Michael Liao
8c702e1a18 Fix PR18054
- Fix bug in (vsext (vzext x)) -> (vsext x) in SIGN_EXTEND_IN_REG
  lowering where we need to check whether x is a vector type (in-reg
  type) of i8, i16 or i32; otherwise, that optimization is not valid.

llvm-svn: 195779
2013-11-26 20:31:31 +00:00