[llvm] [llvm][NVPTX] Fix quadratic runtime in ProxyRegErasure (PR #105730)

[Jeff Niu via llvm-commits]

Mogball wrote:

@Groverkss I'm not able to reproduce this. Do you have a commit hash I can try? Also, you're on the cmake relwithdebinfo config right?

https://github.com/llvm/llvm-project/pull/105730