|  | - // MIR for `main` before InstrumentCoverage | 
|  | + // MIR for `main` after InstrumentCoverage | 
|  |  | 
|  | fn main() -> () { | 
|  | let mut _0: (); | 
|  | let mut _1: Enum; | 
|  | let mut _2: isize; | 
|  | let _3: u32; | 
|  | let mut _4: u32; | 
|  | let _5: u32; | 
|  | let mut _6: u32; | 
|  | let _7: u32; | 
|  | let mut _8: u32; | 
|  | let _9: u32; | 
|  | let mut _10: u32; | 
|  | scope 1 { | 
|  | debug d => _3; | 
|  | } | 
|  | scope 2 { | 
|  | debug c => _5; | 
|  | } | 
|  | scope 3 { | 
|  | debug b => _7; | 
|  | } | 
|  | scope 4 { | 
|  | debug a => _9; | 
|  | } | 
|  |  | 
|  | +     coverage Code { bcb: bcb0 } => $DIR/branch_match_arms.rs:14:1: 14:10 (#0); | 
|  | +     coverage Code { bcb: bcb0 } => $DIR/branch_match_arms.rs:15:11: 15:21 (#0); | 
|  | +     coverage Code { bcb: bcb1 } => $DIR/branch_match_arms.rs:16:17: 16:18 (#0); | 
|  | +     coverage Code { bcb: bcb1 } => $DIR/branch_match_arms.rs:16:23: 16:30 (#0); | 
|  | +     coverage Code { bcb: bcb1 } => $DIR/branch_match_arms.rs:16:31: 16:32 (#0); | 
|  | +     coverage Code { bcb: bcb3 } => $DIR/branch_match_arms.rs:17:17: 17:18 (#0); | 
|  | +     coverage Code { bcb: bcb3 } => $DIR/branch_match_arms.rs:17:23: 17:30 (#0); | 
|  | +     coverage Code { bcb: bcb3 } => $DIR/branch_match_arms.rs:17:31: 17:32 (#0); | 
|  | +     coverage Code { bcb: bcb4 } => $DIR/branch_match_arms.rs:18:17: 18:18 (#0); | 
|  | +     coverage Code { bcb: bcb4 } => $DIR/branch_match_arms.rs:18:23: 18:30 (#0); | 
|  | +     coverage Code { bcb: bcb4 } => $DIR/branch_match_arms.rs:18:31: 18:32 (#0); | 
|  | +     coverage Code { bcb: bcb5 } => $DIR/branch_match_arms.rs:19:17: 19:18 (#0); | 
|  | +     coverage Code { bcb: bcb5 } => $DIR/branch_match_arms.rs:19:23: 19:30 (#0); | 
|  | +     coverage Code { bcb: bcb5 } => $DIR/branch_match_arms.rs:19:31: 19:32 (#0); | 
|  | +     coverage Code { bcb: bcb2 } => $DIR/branch_match_arms.rs:21:1: 21:2 (#0); | 
|  | + | 
|  | bb0: { | 
|  | +         Coverage::VirtualCounter(bcb0); | 
|  | StorageLive(_1); | 
|  | _1 = Enum::A(const 0_u32); | 
|  | PlaceMention(_1); | 
|  | _2 = discriminant(_1); | 
|  | switchInt(move _2) -> [0: bb5, 1: bb4, 2: bb3, 3: bb2, otherwise: bb1]; | 
|  | } | 
|  |  | 
|  | bb1: { | 
|  | FakeRead(ForMatchedPlace(None), _1); | 
|  | unreachable; | 
|  | } | 
|  |  | 
|  | bb2: { | 
|  | +         Coverage::VirtualCounter(bcb1); | 
|  | falseEdge -> [real: bb8, imaginary: bb3]; | 
|  | } | 
|  |  | 
|  | bb3: { | 
|  | +         Coverage::VirtualCounter(bcb3); | 
|  | falseEdge -> [real: bb7, imaginary: bb4]; | 
|  | } | 
|  |  | 
|  | bb4: { | 
|  | +         Coverage::VirtualCounter(bcb4); | 
|  | falseEdge -> [real: bb6, imaginary: bb5]; | 
|  | } | 
|  |  | 
|  | bb5: { | 
|  | +         Coverage::VirtualCounter(bcb5); | 
|  | StorageLive(_9); | 
|  | _9 = copy ((_1 as A).0: u32); | 
|  | StorageLive(_10); | 
|  | _10 = copy _9; | 
|  | _0 = consume(move _10) -> [return: bb12, unwind: bb14]; | 
|  | } | 
|  |  | 
|  | bb6: { | 
|  | StorageLive(_7); | 
|  | _7 = copy ((_1 as B).0: u32); | 
|  | StorageLive(_8); | 
|  | _8 = copy _7; | 
|  | _0 = consume(move _8) -> [return: bb11, unwind: bb14]; | 
|  | } | 
|  |  | 
|  | bb7: { | 
|  | StorageLive(_5); | 
|  | _5 = copy ((_1 as C).0: u32); | 
|  | StorageLive(_6); | 
|  | _6 = copy _5; | 
|  | _0 = consume(move _6) -> [return: bb10, unwind: bb14]; | 
|  | } | 
|  |  | 
|  | bb8: { | 
|  | StorageLive(_3); | 
|  | _3 = copy ((_1 as D).0: u32); | 
|  | StorageLive(_4); | 
|  | _4 = copy _3; | 
|  | _0 = consume(move _4) -> [return: bb9, unwind: bb14]; | 
|  | } | 
|  |  | 
|  | bb9: { | 
|  | StorageDead(_4); | 
|  | StorageDead(_3); | 
|  | goto -> bb13; | 
|  | } | 
|  |  | 
|  | bb10: { | 
|  | StorageDead(_6); | 
|  | StorageDead(_5); | 
|  | goto -> bb13; | 
|  | } | 
|  |  | 
|  | bb11: { | 
|  | StorageDead(_8); | 
|  | StorageDead(_7); | 
|  | goto -> bb13; | 
|  | } | 
|  |  | 
|  | bb12: { | 
|  | StorageDead(_10); | 
|  | StorageDead(_9); | 
|  | goto -> bb13; | 
|  | } | 
|  |  | 
|  | bb13: { | 
|  | +         Coverage::VirtualCounter(bcb2); | 
|  | StorageDead(_1); | 
|  | return; | 
|  | } | 
|  |  | 
|  | bb14 (cleanup): { | 
|  | resume; | 
|  | } | 
|  | } | 
|  |  |