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//@ compile-flags: -O
//@ only-x86_64
#![crate_type = "rlib"]
#![feature(asm_unwind)]
use std::arch::asm;
#[no_mangle]
pub extern "C" fn panicky() {}
struct Foo;
impl Drop for Foo {
fn drop(&mut self) {
println!();
}
}
// CHECK-LABEL: @asm_may_unwind
#[no_mangle]
pub unsafe fn asm_may_unwind() {
let _m = Foo;
// CHECK: invoke void asm sideeffect alignstack inteldialect unwind ""
asm!("", options(may_unwind));
}
// CHECK-LABEL: @asm_with_result_may_unwind
#[no_mangle]
pub unsafe fn asm_with_result_may_unwind() -> u64 {
let _m = Foo;
let res: u64;
// CHECK: [[RES:%[0-9]+]] = invoke i64 asm sideeffect alignstack inteldialect unwind
// CHECK-NEXT: to label %[[NORMALBB:[a-b0-9]+]]
asm!("mov {}, 1", out(reg) res, options(may_unwind));
// CHECK: [[NORMALBB]]:
// CHECK: ret i64 [[RES:%[0-9]+]]
res
}
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