1fn f() i32 {
 2    return @as(i32, return 1);
 3}
 4export fn entry() void {
 5    _ = f();
 6}
 7
 8// error
 9//
10// :2:12: error: unreachable code
11// :2:21: note: control flow is diverted here
12// :2:5: error: unreachable code
13// :2:12: note: control flow is diverted here