[PATCH] D126617: [InstCombine] Optimize shl+lshr+and conversion pattern

[Sanjay Patel via Phabricator via llvm-commits]

spatel added a comment.

In D126617#3559375 <https://reviews.llvm.org/D126617#3559375>, @bcl5980 wrote:

> 1. the demanded bits fix. I think it is a safe and independent change.

Ok, let's try to make improvements in small steps; one part for demanded bits is here:
D127122 <https://reviews.llvm.org/D127122>


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https://reviews.llvm.org/D126617