[rustc.git] / src / test / mir-opt / dest-prop / cycle.rs

//! Tests that cyclic assignments don't hang DestinationPropagation, and result in reasonable code.
// compile-flags: -Zunsound-mir-opts
fn val() -> i32 {
    1
}

// EMIT_MIR cycle.main.DestinationPropagation.diff
fn main() {
    let mut x = val();
    let y = x;
    let z = y;
    x = z;

    drop(x);
}
Commit	Line	Data
1b1a35ee	1	//! Tests that cyclic assignments don't hang DestinationPropagation, and result in reasonable code.
6a06907d	2	// compile-flags: -Zunsound-mir-opts
1b1a35ee XL	3	fn val() -> i32 {
	4	1
	5	}
	6
	7	// EMIT_MIR cycle.main.DestinationPropagation.diff
	8	fn main() {
	9	let mut x = val();
	10	let y = x;
	11	let z = y;
	12	x = z;
	13
	14	drop(x);
	15	}