[llvm] [ValueTracking] Improve KnownBits for signed min-max clamping (PR #120576)

[via llvm-commits]

adam-bzowski wrote:

> ⚠️ C/C++ code formatter, clang-format found issues in your code. ⚠️
> 
> You can test this locally with the following command:
> View the diff from clang-format here.

This is fixed as well. Please let me know if I should do something more. Thanks.

https://github.com/llvm/llvm-project/pull/120576