[llvm] [MachineLICM] Fix the check for high register pressure (PR #118780)

[Michael Maitland via llvm-commits]

michaelmaitland wrote:

> See https://github.com/llvm/llvm-project/pull/118783 for the test.

Could you please include the precommit in this patch so we can see how it changed in the diff?

https://github.com/llvm/llvm-project/pull/118780