| - // MIR for `foo` before SimplifyLocals-final | |
| + // MIR for `foo` after SimplifyLocals-final | |
| fn foo() -> () { | |
| let mut _0: (); | |
| let mut _1: (std::option::Option<u8>, std::option::Option<T>); | |
| let mut _2: std::option::Option<u8>; | |
| let mut _3: std::option::Option<T>; | |
| let mut _4: isize; | |
| let mut _5: isize; | |
| - let mut _7: bool; | |
| - let mut _8: u8; | |
| scope 1 { | |
| debug a => _6; | |
| let _6: u8; | |
| } | |
| bb0: { | |
| StorageLive(_1); | |
| StorageLive(_2); | |
| _2 = Option::<u8>::None; | |
| StorageLive(_3); | |
| _3 = Option::<T>::None; | |
| _1 = (move _2, move _3); | |
| StorageDead(_3); | |
| StorageDead(_2); | |
| _5 = discriminant((_1.0: std::option::Option<u8>)); | |
| switchInt(move _5) -> [1: bb1, 0: bb3, otherwise: bb5]; | |
| } | |
| bb1: { | |
| _4 = discriminant((_1.1: std::option::Option<T>)); | |
| switchInt(move _4) -> [0: bb2, 1: bb3, otherwise: bb5]; | |
| } | |
| bb2: { | |
| StorageLive(_6); | |
| _6 = copy (((_1.0: std::option::Option<u8>) as Some).0: u8); | |
| StorageDead(_6); | |
| goto -> bb3; | |
| } | |
| bb3: { | |
| drop(_1) -> [return: bb4, unwind unreachable]; | |
| } | |
| bb4: { | |
| StorageDead(_1); | |
| return; | |
| } | |
| bb5: { | |
| unreachable; | |
| } | |
| } | |