[PATCH] D88471: [Passes] Run peeling as part of simple/full loop unrolling.

Fri Oct 2 04:37:17 PDT 2020

lebedev.ri added a comment.

In D88471#2308297 <https://reviews.llvm.org/D88471#2308297>, @fhahn wrote:

> In D88471#2308260 <https://reviews.llvm.org/D88471#2308260>, @lebedev.ri wrote:
>
>> The patch doesn't seem to apply for me:
>
> Rebased, should apply now.

It does, thank you.

> In terms of runtime impact, I measured the following impact on SPEC2006 on ARM64 with -O3 -flto, outside the noise:
>
>   test-suite...006/450.soplex/450.soplex.test   -2.4%
>   test-suite...6/464.h264ref/464.h264ref.test    1.3%
>   test-suite...T2006/473.astar/473.astar.test   -0.9%
>
> Presumably the h264ref regression is related to wrong decisions in the cost modeling and probably warrants some further analysis.

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https://reviews.llvm.org/D88471