search for: d41578

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2018 Jan 25
1
Late setting of SCEV NoWrap flags does bad with cache
Hi, I think these two patches are related to the topic: https://reviews.llvm.org/D41578 “[SCEV] Do not cache S -> V if S is not equivalent of V” * It’s committed. It can cause generation of redundant instructions. We’ve got regressions due to it. The biggest one is 7.31% regression in Spec2k6 401.bzip2 on Cortex-A57(AArch64). https://reviews.llvm.org/D42290 “[SCEV] Clear pois...