Merging r200705:

------------------------------------------------------------------------
r200705 | hfinkel | 2014-02-03 12:27:25 -0500 (Mon, 03 Feb 2014) | 5 lines

Expand vector bswap in LegalizeVectorOps

ISD::BSWAP was missing from the list of node types that should be expanded
element-wise.

llvm-svn: 205910