[llvm] [X86] Truncate i64 sub to i32 when upper 33 bits are zeros (PR #145850)

[Omkar Mohanty via llvm-commits]

omkar-mohanty wrote:

> Hi @omkar-mohanty, Noticed your PR has been idle for a while — do you need any help with the remaining issues or the setle/setg test failures?

I haven’t had a chance to look deeper into why the sub changes affect the setle/setg tests. I’d appreciate any pointers on where to start investigating. 

https://github.com/llvm/llvm-project/pull/145850