[llvm] [LoopUnroll] Add flag to disable profile usage (PR #102950)

[Nikita Popov via llvm-commits]

https://github.com/nikic requested changes to this pull request.

This isn't the correct way to fix the stated problem. This particular peeling form shouldn't be performed when optimizing for size at all. It should pretty much always be bad for code size.

https://github.com/llvm/llvm-project/pull/102950