File: noreturn-uninhabited.rs

package info (click to toggle)
rustc 1.85.0%2Bdfsg3-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental, trixie
  • size: 893,396 kB
  • sloc: xml: 158,127; python: 35,830; javascript: 19,497; cpp: 19,002; sh: 17,245; ansic: 13,127; asm: 4,376; makefile: 1,051; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (31 lines) | stat: -rw-r--r-- 735 bytes parent folder | download | duplicates (5)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
//@ 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