| - // MIR for `identity` before JumpThreading |
| + // MIR for `identity` after JumpThreading |
| |
| fn identity(_1: Result<i32, i32>) -> Result<i32, i32> { |
| debug x => _1; |
| let mut _0: std::result::Result<i32, i32>; |
| let mut _2: i32; |
| let mut _3: std::ops::ControlFlow<std::result::Result<std::convert::Infallible, i32>, i32>; |
| let mut _4: std::result::Result<i32, i32>; |
| let mut _5: isize; |
| let _6: std::result::Result<std::convert::Infallible, i32>; |
| let mut _7: !; |
| let mut _8: std::result::Result<std::convert::Infallible, i32>; |
| let _9: i32; |
| scope 1 { |
| debug residual => _6; |
| scope 2 { |
| scope 8 (inlined #[track_caller] <Result<i32, i32> as FromResidual<Result<Infallible, i32>>>::from_residual) { |
| let _14: i32; |
| let mut _15: i32; |
| scope 9 { |
| scope 10 (inlined <i32 as From<i32>>::from) { |
| } |
| } |
| } |
| } |
| } |
| scope 3 { |
| debug val => _9; |
| scope 4 { |
| } |
| } |
| scope 5 (inlined <Result<i32, i32> as Try>::branch) { |
| let mut _10: isize; |
| let _11: i32; |
| let _12: i32; |
| let mut _13: std::result::Result<std::convert::Infallible, i32>; |
| scope 6 { |
| } |
| scope 7 { |
| } |
| } |
| |
| bb0: { |
| StorageLive(_2); |
| StorageLive(_3); |
| StorageLive(_4); |
| _4 = copy _1; |
| StorageLive(_10); |
| StorageLive(_11); |
| StorageLive(_12); |
| _10 = discriminant(_4); |
| switchInt(move _10) -> [0: bb7, 1: bb6, otherwise: bb1]; |
| } |
| |
| bb1: { |
| unreachable; |
| } |
| |
| bb2: { |
| StorageLive(_9); |
| _9 = copy ((_3 as Continue).0: i32); |
| _2 = copy _9; |
| StorageDead(_9); |
| _0 = Result::<i32, i32>::Ok(move _2); |
| StorageDead(_2); |
| StorageDead(_3); |
| goto -> bb4; |
| } |
| |
| bb3: { |
| StorageLive(_6); |
| _6 = copy ((_3 as Break).0: std::result::Result<std::convert::Infallible, i32>); |
| StorageLive(_8); |
| _8 = copy _6; |
| StorageLive(_14); |
| _14 = move ((_8 as Err).0: i32); |
| StorageLive(_15); |
| _15 = move _14; |
| _0 = Result::<i32, i32>::Err(move _15); |
| StorageDead(_15); |
| StorageDead(_14); |
| StorageDead(_8); |
| StorageDead(_6); |
| StorageDead(_2); |
| StorageDead(_3); |
| goto -> bb4; |
| } |
| |
| bb4: { |
| return; |
| } |
| |
| bb5: { |
| StorageDead(_12); |
| StorageDead(_11); |
| StorageDead(_10); |
| StorageDead(_4); |
| _5 = discriminant(_3); |
| - switchInt(move _5) -> [0: bb2, 1: bb3, otherwise: bb1]; |
| + goto -> bb2; |
| } |
| |
| bb6: { |
| _12 = move ((_4 as Err).0: i32); |
| StorageLive(_13); |
| _13 = Result::<Infallible, i32>::Err(copy _12); |
| _3 = ControlFlow::<Result<Infallible, i32>, i32>::Break(move _13); |
| StorageDead(_13); |
| - goto -> bb5; |
| + goto -> bb8; |
| } |
| |
| bb7: { |
| _11 = move ((_4 as Ok).0: i32); |
| _3 = ControlFlow::<Result<Infallible, i32>, i32>::Continue(copy _11); |
| goto -> bb5; |
| + } |
| + |
| + bb8: { |
| + StorageDead(_12); |
| + StorageDead(_11); |
| + StorageDead(_10); |
| + StorageDead(_4); |
| + _5 = discriminant(_3); |
| + goto -> bb3; |
| } |
| } |
| |