[llvm] [SCCP] Refine trunc with nsw/nuw flags (PR #87926)

[Yingwei Zheng via llvm-commits]

dtcxzyw wrote:

> Can you please fix the failing clang tests?

Should be fixed by https://github.com/llvm/llvm-project/pull/87910/commits/72985d72186822547a35044b3a80653831f70c4c.


https://github.com/llvm/llvm-project/pull/87926