[llvm] [X86][CostModel] Add vXi64 divide/remainder-by-constant costs (PR #208491)

[Rito Takeuchi via llvm-commits]

Licht-T wrote:

@Andarwinux Fair point. Another PR for the scalar side would be a big change and won't meet the timeline. Let me find a way.

https://github.com/llvm/llvm-project/pull/208491