[rustc.git] / src / test / mir-opt / copy_propagation.rs

fn test(x: u32) -> u32 {
    let y = x;
    y
}

fn main() {
    // Make sure the function actually gets instantiated.
    test(0);
}

// END RUST SOURCE
// START rustc.test.CopyPropagation.before.mir
//  bb0: {
//      ...
//      _2 = _1;
//      ...
//      _0 = _2;
//      ...
//      return;
//  }
// END rustc.test.CopyPropagation.before.mir
// START rustc.test.CopyPropagation.after.mir
//  bb0: {
//      ...
//      _0 = _1;
//      ...
//      return;
//  }
// END rustc.test.CopyPropagation.after.mir
Commit	Line	Data
476ff2be SL	1	fn test(x: u32) -> u32 {
	2	let y = x;
	3	y
a7813a04 XL	4	}
a7813a04 XL	5
abe05a73 XL	6	fn main() {
	7	// Make sure the function actually gets instantiated.
	8	test(0);
	9	}
476ff2be SL	10
476ff2be SL	11	// END RUST SOURCE
abe05a73	12	// START rustc.test.CopyPropagation.before.mir
476ff2be	13	// bb0: {
abe05a73	14	// ...
8faf50e0	15	// _2 = _1;
abe05a73	16	// ...
8faf50e0	17	// _0 = _2;
abe05a73	18	// ...
476ff2be SL	19	// return;
476ff2be SL	20	// }
abe05a73 XL	21	// END rustc.test.CopyPropagation.before.mir
abe05a73 XL	22	// START rustc.test.CopyPropagation.after.mir
476ff2be	23	// bb0: {
abe05a73	24	// ...
8faf50e0	25	// _0 = _1;
abe05a73	26	// ...
476ff2be SL	27	// return;
476ff2be SL	28	// }
abe05a73	29	// END rustc.test.CopyPropagation.after.mir