[lld] [llvm] [sancov][LoongArch] Resolve pcaddu18i+jirl in evaluateBranch and teach sancov (PR #155371)

[via llvm-commits]

zhaoqi5 wrote:

> @zhaoqi5 I am going to revert as I am not sure if simple cast to unsigned type is correct here?

@vitalybuka I think it is right to simply cast to unsigned type. I have just created a new PR (https://github.com/llvm/llvm-project/pull/155964) to fix the issue you found. Please take a look when you have a moment.

I will keep a close eye on the bot results once the new PR is merged. Thanks again for your guidence.

https://github.com/llvm/llvm-project/pull/155371