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Commit e744f513 authored by Simon Pilgrim's avatar Simon Pilgrim
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[X86][SSE] SimplifyDemandedVectorEltsForTargetNode - handle repeated shift amounts 

If a value with multiple uses is only ever used for SSE shift amounts then we know that only the bottom 64-bits are needed.

llvm-svn: 356483
parent 2153c4b8
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