[llvm] [SelectOpt] Add handling for Select-like operations. (PR #77284)

[Sjoerd Meijer via llvm-commits]

sjoerdmeijer wrote:

> > I might be wrong, but I suspect we could do with some more test-cases, especially negative tests when this shouldn't trigger. From a quick look, things like when the pattern doesn't exactly matches, one use, dbg instructions, if it is not a terminator, etc.
> 
> There should be tests for one uses select groups and the positions in selectopt.ll. See [365fbbf](https://github.com/llvm/llvm-project/commit/365fbbfbcfefb8766f7716109b9c3767b58e6058). Debug info tests we would not usually add unless we had good reason, they can be quite bulky, but I've added a run line. Anything else specific you think needs adding?

Ok, thanks for clarifying, looks fine then.

https://github.com/llvm/llvm-project/pull/77284