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cd5177a158
This is "cvtdq2ps" which does not appear to be particularly slow on any CPU according to Agner's tables. Choosing "5" as a cost here as suggested in: https://llvm.org/bugs/show_bug.cgi?id=21356 ...but it seems very conservative given that the instruction is fully pipelined, and I think these costs are supposed to model throughput. Note that related costs are also most likely too high, but this fixes PR21356 and partly fixes PR28434. llvm-svn: 274658 |
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