rust/tests/codegen-units/item-collection/instantiation-through-vtable.rs
2024-05-31 15:56:45 +10:00

43 lines
1001 B
Rust

//
//@ compile-flags:-Zprint-mono-items=eager -Zinline-in-all-cgus -Zmir-opt-level=0
#![deny(dead_code)]
#![feature(start)]
trait Trait {
fn foo(&self) -> u32;
fn bar(&self);
}
struct Struct<T> {
_a: T,
}
impl<T> Trait for Struct<T> {
fn foo(&self) -> u32 {
0
}
fn bar(&self) {}
}
//~ MONO_ITEM fn start
#[start]
fn start(_: isize, _: *const *const u8) -> isize {
let s1 = Struct { _a: 0u32 };
//~ MONO_ITEM fn std::ptr::drop_in_place::<Struct<u32>> - shim(None) @@ instantiation_through_vtable-cgu.0[Internal]
//~ MONO_ITEM fn <Struct<u32> as Trait>::foo
//~ MONO_ITEM fn <Struct<u32> as Trait>::bar
let r1 = &s1 as &Trait;
r1.foo();
r1.bar();
let s1 = Struct { _a: 0u64 };
//~ MONO_ITEM fn std::ptr::drop_in_place::<Struct<u64>> - shim(None) @@ instantiation_through_vtable-cgu.0[Internal]
//~ MONO_ITEM fn <Struct<u64> as Trait>::foo
//~ MONO_ITEM fn <Struct<u64> as Trait>::bar
let _ = &s1 as &Trait;
0
}