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

[Nikita Popov via llvm-commits]

nikic 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?

PR per use (or at least per pass) is preferred.

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