[compiler-rt] [compiler-rt] optimize __umodti3 (PR #82353)

[Jan Schultke via llvm-commits]

Eisenwave wrote:

> Is this patch waiting for something?

I just need to make some changes regarding code formatting.

> Actually, I'm pretty sure the logic here is wrong if b.s.hi is non-zero. Among other things, there's an incorrect divide by zero.

`b.s.hi` is always zero/ignored. That's a precondition of this function.

https://github.com/llvm/llvm-project/pull/82353