| //@ known-bug: #107975 |
| //@ compile-flags: -Copt-level=2 |
| //@ run-pass |
| |
| // https://github.com/rust-lang/rust/issues/107975#issuecomment-1430704499 |
| |
| use std::ptr; |
| |
| fn main() { |
| let a: usize = { |
| let v = 0; |
| ptr::from_ref(&v).expose_provenance() |
| }; |
| let b: usize = { |
| let v = 0; |
| ptr::from_ref(&v).expose_provenance() |
| }; |
| |
| assert_ne!(a, b); |
| assert_ne!(a, b); |
| let c = a; |
| assert_eq!(format!("{} {} {}", a == b, a == c, b == c), "false true false"); |
| println!("{a} {b}"); |
| assert_eq!(format!("{} {} {}", a == b, a == c, b == c), "true true true"); |
| } |
