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940e7965f1
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
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