[PATCH] D89206: [MemCpyOpt] Add test scaffolding for MSSA based MemCpyOpt

Wed Oct 28 10:38:16 PDT 2020

mtrofin added a comment.

In D89206#2358375 <https://reviews.llvm.org/D89206#2358375>, @nikic wrote:

> @mtrofin They show cases where the MSSA and MD implementations produce different results. See the test diffs in D89207 <https://reviews.llvm.org/D89207> for examples.

(The context is D90281 <https://reviews.llvm.org/D90281>)

Is this work in progress, meaning there are more patches coming adding coverage? So for example, in Transforms/MemCpyOpt/vscale-memset.ll, there's no NO_MSSA check right now, but there will be later, is that correct?

If D90281 <https://reviews.llvm.org/D90281> applies, could you comment there about your scenario (i.e. had --check-prefixes been strict, how would this work have been impacted)? Thanks!

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https://reviews.llvm.org/D89206