[llvm] [X86][GlobalISel] Enable G_SDIV/G_UDIV/G_SREM/G_UREM (PR #81615)

[Matt Arsenault via llvm-commits]

arsenm wrote:

> One of the nice features of GlobalIsel is that you can test passes in isolation. Why did the mir tests did not reveal the bug? End-to-end tests are a SelectionDag feature.

Neither is a replacement for each other. I would add new end to end tests, not delete existing MIR tests 

https://github.com/llvm/llvm-project/pull/81615