[llvm] X86: Stop using MachineFunction in getPointerRegClass (PR #156880)

[Martin Storsjö via llvm-commits]

mstorsjo wrote:

This caused quite widespread breakage when targeting windows x86_64. It doesn't seem to trigger any failed asserts anywhere, but just causes the built binaries to crash/misbehave.

I'll try to pinpoint some form of reproducer for this.

https://github.com/llvm/llvm-project/pull/156880