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Commit 46a366cc authored by Simon Pilgrim's avatar Simon Pilgrim
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[X86][SSE] Early out from ComputeNumSignBitsForTargetNode. NFCI. 

Early out from vector shift by immediates that will exceed eltsize - don't bother making an unnecessary ComputeNumSignBits recursive call.

llvm-svn: 314903
parent bbf56fb6
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