[llvm] [LAA] Fix implicit trunc from int64 to int and losing info (PR #139553)

[Ramkumar Ramachandra via llvm-commits]

artagnon wrote:

> Based on the comments, should we merge this patch(as this fixes the bug) and then let @artagnon follow up in a separate patch?

See #139941.

https://github.com/llvm/llvm-project/pull/139553