- // MIR for `main` before InstrumentCoverage
+ // MIR for `main` after InstrumentCoverage
  
  fn main() -> () {
      let mut _0: ();
      let mut _1: bool;
  
      coverage branch { true: BlockMarkerId(0), false: BlockMarkerId(1) } => $DIR/instrument_coverage_cleanup.rs:14:8: 14:36 (#0)
  
+     coverage ExpressionId(0) => Expression { lhs: Counter(0), op: Subtract, rhs: Counter(1) };
+     coverage ExpressionId(1) => Expression { lhs: Counter(1), op: Add, rhs: Expression(0) };
+     coverage Code(Counter(0)) => $DIR/instrument_coverage_cleanup.rs:13:1 - 14:36;
+     coverage Code(Expression(0)) => $DIR/instrument_coverage_cleanup.rs:14:37 - 14:39;
+     coverage Code(Counter(1)) => $DIR/instrument_coverage_cleanup.rs:14:39 - 14:40;
+     coverage Code(Expression(1)) => $DIR/instrument_coverage_cleanup.rs:15:1 - 15:2;
+     coverage Branch { true_term: Expression(0), false_term: Counter(1) } => $DIR/instrument_coverage_cleanup.rs:14:8 - 14:36;
+ 
      bb0: {
+         Coverage::CounterIncrement(0);
          Coverage::SpanMarker;
          StorageLive(_1);
          _1 = std::hint::black_box::<bool>(const true) -> [return: bb1, unwind: bb5];
      }
  
      bb1: {
          switchInt(move _1) -> [0: bb3, otherwise: bb2];
      }
  
      bb2: {
+         Coverage::CounterIncrement(1);
          Coverage::BlockMarker(1);
          _0 = const ();
          goto -> bb4;
      }
  
      bb3: {
+         Coverage::ExpressionUsed(0);
          Coverage::BlockMarker(0);
          _0 = const ();
          goto -> bb4;
      }
  
      bb4: {
+         Coverage::ExpressionUsed(1);
          StorageDead(_1);
          return;
      }
  
      bb5 (cleanup): {
          resume;
      }
  }