[PATCH] D155472: [DAG] Attempt shl narrowing in SimplifyDemandedBits

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added a comment.

In D155472#4652231 <https://reviews.llvm.org/D155472#4652231>, @goldstein.w.n wrote:

> In D155472#4652226 <https://reviews.llvm.org/D155472#4652226>, @RKSimon wrote:
>
>> address feedback and rebase - I'm still investigating how to handle more of the X86-specific changes in pre-commits
>
> Do they cause regressions if committed independently?

They currently cause no test changes against trunk - I need to create a few tests that I'm happy with and that should cover most of the X86 changes so I will be able to pre-commit those. The DAGCombiner.cpp change might have to stay though.


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  https://reviews.llvm.org/D155472/new/

https://reviews.llvm.org/D155472