[llvm] Use range attribute to constant fold comparisons with constant values. (PR #84627)

[Andreas Jonson via llvm-commits]

andjo403 wrote:

Will try to check all places that use the range metadata and see if the range attribute also shall be handled.
Is it good to have a PR per use or shall I add more to this?

https://github.com/llvm/llvm-project/pull/84627