michaelmaitland wrote: @camel-cdr
> Are the vrgather.vv numbers correct? According to llvm-exegisis, our micro-architecture spec, and llvm-mca reports, we believe these numbers are correct. > Usually LMUL>1 vrgather is implemented by applying a LMUL=1 vrgather LMUL^2 > times. Since the LMUL=1 vrgather.vv takes a single cycle, I would've expected > a 4 cycle LMUL=2 vrgather.vv instead of 12. We don't think using the approach you present here agrees with what we see in llvm-exegisis. We think the approach we take is a good representation. > Oh, and did you use upstream llvm-exegesis? I didn't managed to get it to > work last time I tried. This is a question for @mshockwave. https://github.com/llvm/llvm-project/pull/102155 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
