[PATCH] D136015: [InstCombine] Fold series of instructions into mull

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added a comment.

In D136015#3875187 <https://reviews.llvm.org/D136015#3875187>, @chfast wrote:

> In https://reviews.llvm.org/D56214 similar pattern match was applied in AggressiveInstCombine.
>
> Do you want me to submit test cases from there?

Yes please @chfast, if you think we can just use this patch then maybe just move them (and tweak for -instcombine).


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