[PATCH] D34619: [ARM] Enable partial and runtime unrolling

Sjoerd Meijer via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Thu Jul 6 04:43:46 PDT 2017


SjoerdMeijer added a comment.

Sam, interesting performance numbers! It looks like we see some strange bimodal behaviour: (big) improvements are canceled out by (big) regressions. Assuming that codegen for this function is the same here (just the value of dataSize is different), I am wondering if we are not just looking at some micro-architecture weirdness? So I don't think we can draw any conclusions from these numbers. Do we need more data points?


https://reviews.llvm.org/D34619





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