[llvm] [InstCombine] Move foldLogOpOfMaskedICmps to make it possible to handle trunc to i1. (PR #122179)

[Yingwei Zheng via llvm-commits]

dtcxzyw wrote:

>  most of the diffs that I looked at was to the better but there was some regressions.

Can you add some tests for these improvements and regressions?


https://github.com/llvm/llvm-project/pull/122179