[llvm] [CVP] Propagate constant range on icmp at use level (PR #73767)

[via llvm-commits]

XChy wrote:

> In [7de592b](https://github.com/llvm/llvm-project/commit/7de592b9f9f12f861cc1bdc667d6042569bc42a2) I have refactored the getConstantRangeAtUse() implementation to be based on an internal getValueAtUse() method that works on ValueLatticeElement. I think with that, it should be possible to integrate the implementations.

OK, I will rebase on it and integrate them.

https://github.com/llvm/llvm-project/pull/73767