[PATCH] D86262: [LoopIdiomRecognizePass] Options to disable part or the entire Loop Idiom Recognize Pass

[Anh Tuyen Tran via Phabricator via llvm-commits]

anhtuyen added a comment.

In D86262#2231209 <https://reviews.llvm.org/D86262#2231209>, @lebedev.ri wrote:

> I'd like to see a PhaseOrdering test showing the IR that is not optimized due to the DA being unaware about these intrinsics.

It is not easy to provide a test case showing that the DA is confused after memset/memcpy function calls are used. For the purpose of this patch, Ettore (thanks @etiotto) and I have shown a few simple testcases where the performance is negatively impacted by the existence of memset (which was inserted by LIRP). I hope you consider it sufficient for the patch to be adopted.


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