| - // 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; |
| 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 continue]; |
| } |
| |
| bb4: { |
| StorageDead(_1); |
| return; |
| } |
| |
| bb5: { |
| unreachable; |
| } |
| } |
| |