[PATCH] D122152: [InstCombine] Fold two select patterns into and-or

Tue Mar 22 08:03:45 PDT 2022

RKSimon added a comment.

In D122152#3396833 <https://reviews.llvm.org/D122152#3396833>, @bcl5980 wrote:

> In D122152#3396735 <https://reviews.llvm.org/D122152#3396735>, @RKSimon wrote:
>
>> I'm almost afraid to ask - but should we consider supporting this with freeze?
>
> Which way is better do you think?

I'm of the opinion we should start using freeze more in general codegen - using isGuaranteedNotToBePoison is very limiting to how often the combine will ever get used.

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https://reviews.llvm.org/D122152