[llvm] [profcheck] Annotate `select` instructions (PR #152171)

[Mircea Trofin via llvm-commits]

mtrofin wrote:

### Merge activity

* **Aug 6, 12:47 AM UTC**: A user started a stack merge that includes this pull request via [Graphite](https://app.graphite.dev/github/pr/llvm/llvm-project/152171).


https://github.com/llvm/llvm-project/pull/152171