core.checkedint.addu: Faster (like subu: only one compare-and-branch) (resubmit).

[DoctorNoobingstoneIPresume]

#3511 (comment) ...

[dlang-bot]

Thanks for your pull request and interest in making D better, @DoctorNoobingstoneIPresume! We are looking forward to reviewing it, and you should be hearing from a maintainer soon.
Please verify that your PR follows this checklist:

• My PR is fully covered with tests (you can see the coverage diff by visiting the details link of the codecov check)
• My PR is as minimal as possible (smaller, focused PRs are easier to review than big ones)
• I have provided a detailed rationale explaining my changes
• New or modified functions have Ddoc comments (with Params: and Returns:)

Please see CONTRIBUTING.md for more information.

---

If you have addressed all reviews or aren't sure how to proceed, don't hesitate to ping us with a simple comment.

Bugzilla references

Your PR doesn't reference any Bugzilla issue.

If your PR contains non-trivial changes, please reference a Bugzilla issue or create a manual changelog.

Testing this PR locally

If you don't have a local development environment setup, you can use Digger to test this PR:

dub run digger -- build "master + druntime#3513"

[ibuclaw]

At this point, I'm not sure the druntime pipelines can be trusted.

[DoctorNoobingstoneIPresume]

At this point, I'm not sure the druntime pipelines can be trusted.

"So I have heard.", @DoctorNoobingstoneIPresume typed with a hypocrite grin from his Windows 98^H^HXP computer. :'(

[DoctorNoobingstoneIPresume]

Check warning on line 173 in src/core/checkedint.d
Codecov / codecov/patch
src/core/checkedint.d#L171-L173
Added lines #L171 - L173 were not covered by tests

But it appears to me that these lines of code are actually covered by unittests.

[RazvanN7]

@ibuclaw Any second thoughts on this?

[RazvanN7]

@ibuclaw Should this be closed or can we merge it?

Stale