- // MIR for `foo` before DestinationPropagation + // MIR for `foo` after DestinationPropagation fn foo(_1: u8) -> () { debug x => _1; let mut _0: (); let mut _2: u8; let mut _3: u8; bb0: { - StorageLive(_2); + nop; StorageLive(_3); _3 = _1; - _2 = dummy(move _3) -> [return: bb1, unwind unreachable]; + _1 = dummy(move _3) -> [return: bb1, unwind unreachable]; } bb1: { StorageDead(_3); - _1 = move _2; - StorageDead(_2); + nop; + nop; _0 = const (); return; } }