mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-25 08:13:41 +00:00
22 lines
496 B
Rust
22 lines
496 B
Rust
// skip-filecheck
|
|
//@ test-mir-pass: GVN
|
|
//@ only-64bit
|
|
//@ compile-flags: -Z mir-enable-passes=+Inline
|
|
|
|
// Regression for <https://github.com/rust-lang/rust/issues/127089>
|
|
|
|
struct Foo<T>(std::marker::PhantomData<T>);
|
|
|
|
impl<T> Foo<T> {
|
|
const SENTINEL: *mut T = std::ptr::dangling_mut();
|
|
|
|
fn cmp_ptr(a: *mut T) -> bool {
|
|
std::ptr::eq(a, Self::SENTINEL)
|
|
}
|
|
}
|
|
|
|
// EMIT_MIR gvn_ptr_eq_with_constant.main.GVN.diff
|
|
pub fn main() {
|
|
Foo::<u8>::cmp_ptr(std::ptr::dangling_mut());
|
|
}
|