// compile-flags: -Z panic-in-drop=abort -O

// Ensure that unwinding code paths are eliminated from the output after
// optimization.

#![crate_type = "lib"]
use std::any::Any;
use std::mem::forget;

pub struct ExternDrop;
impl Drop for ExternDrop {
    #[inline(always)]
    fn drop(&mut self) {
        // This call may potentially unwind.
        extern "Rust" {
            fn extern_drop();
        }
        unsafe {
            extern_drop();
        }
    }
}

struct AssertNeverDrop;
impl Drop for AssertNeverDrop {
    #[inline(always)]
    fn drop(&mut self) {
        // This call should be optimized away as unreachable.
        extern "C" {
            fn should_not_appear_in_output();
        }
        unsafe {
            should_not_appear_in_output();
        }
    }
}

// CHECK-LABEL: normal_drop
// CHECK-NOT: should_not_appear_in_output
#[no_mangle]
pub fn normal_drop(x: ExternDrop) {
    let guard = AssertNeverDrop;
    drop(x);
    forget(guard);
}

// CHECK-LABEL: indirect_drop
// CHECK-NOT: should_not_appear_in_output
#[no_mangle]
pub fn indirect_drop(x: Box<dyn Any>) {
    let guard = AssertNeverDrop;
    drop(x);
    forget(guard);
}

Add test for -Z panic-in-drop=abort
Add test for -Z panic-in-drop=abort
