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2 Commits

Author SHA1 Message Date
Michael Liao
1a5cc710ee Teach DAG combine to fold (buildvec (Xint2fp x)) to (Xint2fp (buildvec x)) 
- If more than 1 elemennts are defined and target supports the vectorized
  conversion, use the vectorized one instead to reduce the strength on
  conversion operation.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166546 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-24 04:14:18 +00:00
Michael Liao
991b6a22b6 Add custom conversion from v2u32 to v2f32 in 32-bit mode 
- As there's no 64-bit GPRs in 32-bit mode, a custom conversion from v2u32 to
  v2f32 is added to improve the efficiency of the code generated.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166545 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-10-24 04:09:32 +00:00