Kalle Raiskila 940e7965f1 Improve lowering of sext to i128 on SPU.
The old algorithm inserted a 'rotqmbyi' instruction which was
both redundant and wrong - it made shufb select bytes from the
wrong end of the input quad.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@116701 91177308-0d34-0410-b5e6-96231b3b80d8
2010-10-18 09:34:19 +00:00
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