[llvm] [CodeGen][MISched] Handle empty sized resource usage. (PR #75951)

[Michael Maitland via llvm-commits]

michaelmaitland wrote:

> We're seeing build failures as a result of this change, PTAL: https://lab.llvm.org/buildbot/#/builders/225/builds/30132

I've pushed a fix in d2d42dcfde7e9bf58e49b376ae7488ffac97f4c8

https://github.com/llvm/llvm-project/pull/75951