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

32 lines
734 B
Rust

// compile-flags: -g -C no-prepopulate-passes
#![crate_type = "lib"]
#[derive(Clone, Copy)]
pub enum EmptyEnum {}
#[no_mangle]
pub fn empty(x: &EmptyEnum) -> EmptyEnum {
// CHECK: @empty({{.*}}) unnamed_addr #0
// CHECK-NOT: ret void
// CHECK: call void @llvm.trap()
// CHECK: unreachable
*x
}
pub struct Foo(String, EmptyEnum);
#[no_mangle]
pub fn foo(x: String, y: &EmptyEnum) -> Foo {
// CHECK: @foo({{.*}}) unnamed_addr #0
// CHECK-NOT: ret %Foo
// CHECK: call void @llvm.trap()
// CHECK: unreachable
Foo(x, *y)
}
// CHECK: attributes #0 = {{{.*}} noreturn {{.*}}}
// CHECK: DISubprogram(name: "empty", {{.*}} DIFlagNoReturn
// CHECK: DISubprogram(name: "foo", {{.*}} DIFlagNoReturn