mirror of
https://github.com/rust-lang/rust.git
synced 2024-11-24 07:44:10 +00:00
36 lines
817 B
Rust
36 lines
817 B
Rust
// compile-flags: -Zvirtual-function-elimination -Clto -O -Csymbol-mangling-version=v0
|
|
// ignore-64bit
|
|
|
|
// CHECK: @vtable.0 = {{.*}}, !type ![[TYPE0:[0-9]+]], !vcall_visibility ![[VCALL_VIS0:[0-9]+]]
|
|
|
|
#![crate_type = "lib"]
|
|
|
|
trait T {
|
|
// CHECK-LABEL: ; <virtual_function_elimination_32bit::S as virtual_function_elimination_32bit::T>::used
|
|
fn used(&self) -> i32 {
|
|
1
|
|
}
|
|
// CHECK-LABEL-NOT: {{.*}}::unused
|
|
fn unused(&self) -> i32 {
|
|
2
|
|
}
|
|
}
|
|
|
|
#[derive(Copy, Clone)]
|
|
struct S;
|
|
|
|
impl T for S {}
|
|
|
|
fn taking_t(t: &dyn T) -> i32 {
|
|
// CHECK: @llvm.type.checked.load({{.*}}, i32 12, metadata !"[[MANGLED_TYPE0:[0-9a-zA-Z_]+]]")
|
|
t.used()
|
|
}
|
|
|
|
pub fn main() {
|
|
let s = S;
|
|
taking_t(&s);
|
|
}
|
|
|
|
// CHECK: ![[TYPE0]] = !{i32 0, !"[[MANGLED_TYPE0]]"}
|
|
// CHECK: ![[VCALL_VIS0]] = !{i64 2}
|