[llvm] [llvm][CodeGen] Address the issue of multiple resource reservations in window scheduling (PR #100301)

[Kai Yan via llvm-commits]

kaiyan96 wrote:

This PR is reverted at [101658](https://github.com/llvm/llvm-project/pull/101658)
A Fixed PR is at [101665](https://github.com/llvm/llvm-project/pull/101665)

https://github.com/llvm/llvm-project/pull/100301