rust/tests/codegen/mir_zst_stores.rs
2023-01-11 09:32:08 +00:00

18 lines
338 B
Rust

// compile-flags: -C no-prepopulate-passes
#![crate_type = "lib"]
use std::marker::PhantomData;
#[derive(Copy, Clone)]
struct Zst { phantom: PhantomData<Zst> }
// CHECK-LABEL: @mir
// CHECK-NOT: store{{.*}}undef
#[no_mangle]
pub fn mir() {
let x = Zst { phantom: PhantomData };
let y = (x, 0);
drop(y);
drop((0, x));
}