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...d since AVX2 supports 256 bits integer arithmetic, so its cost is less than AVX1. One query though - shouldn't then the cost of integer ADD/SUB/MUL (which would be 1) be explicitly specified in AVX2 cost table? Because right now this entry is missing and cost of these operations are taken from BaseTTI (which is generic). IMO, it will make things more clear. Your thoughts on this?? Regards, Suyog Sarda On 4 May 2015 21:57, "Nadav Rotem" <nrotem at apple.com> wrote: > > > On May 4, 2015, at 2:36 AM, suyog sarda <sardask01 at gmail.com> wrote: > > > > H...

Hi all, I have a query regarding Cost Table for AVX2 in TargetTransformInfo. The table consist of entries for shift and div operations only. There are no entries for ADD, SUB and MUL for AVX2 cost table. Those entries are present in Cost Table for AVX. The reason for query is - when my sub target feature is AVX2, in SLP Vectorization, while calculating scalar cost of ADD, it doesn't see