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Commit f0e8c1d6 authored by Simon Pilgrim's avatar Simon Pilgrim
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[CostModel][X86] Adjust 256-bit select costs to account for slow BLENDV op 

Based off the script from D103695, on AVX1, Jaguar/Bulldozer both have low throughput for ymm select patterns (BLENDV + OR(AND,ANDN))), and even on AVX2 Haswell still struggles with BLENDV ops
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