- // MIR for `main` before DestinationPropagation
+ // MIR for `main` after DestinationPropagation
  
  fn main() -> () {
      let mut _0: ();                      // return place in scope 0 at $DIR/cycle.rs:+0:11: +0:11
      let mut _1: i32;                     // in scope 0 at $DIR/cycle.rs:+1:9: +1:14
      let mut _4: i32;                     // in scope 0 at $DIR/cycle.rs:+4:9: +4:10
      let _5: ();                          // in scope 0 at $DIR/cycle.rs:+6:5: +6:12
      let mut _6: i32;                     // in scope 0 at $DIR/cycle.rs:+6:10: +6:11
      scope 1 {
          debug x => _1;                   // in scope 1 at $DIR/cycle.rs:+1:9: +1:14
          let _2: i32;                     // in scope 1 at $DIR/cycle.rs:+2:9: +2:10
          scope 2 {
              debug y => _2;               // in scope 2 at $DIR/cycle.rs:+2:9: +2:10
              let _3: i32;                 // in scope 2 at $DIR/cycle.rs:+3:9: +3:10
              scope 3 {
                  debug z => _3;           // in scope 3 at $DIR/cycle.rs:+3:9: +3:10
                  scope 4 (inlined std::mem::drop::<i32>) { // at $DIR/cycle.rs:14:5: 14:12
                      debug _x => _6;      // in scope 4 at $SRC_DIR/core/src/mem/mod.rs:LL:COL
                  }
              }
          }
      }
  
      bb0: {
          StorageLive(_1);                 // scope 0 at $DIR/cycle.rs:+1:9: +1:14
          _1 = val() -> bb1;               // scope 0 at $DIR/cycle.rs:+1:17: +1:22
                                           // mir::Constant
                                           // + span: $DIR/cycle.rs:9:17: 9:20
                                           // + literal: Const { ty: fn() -> i32 {val}, val: Value(<ZST>) }
      }
  
      bb1: {
          StorageLive(_2);                 // scope 1 at $DIR/cycle.rs:+2:9: +2:10
          nop;                             // scope 1 at $DIR/cycle.rs:+2:13: +2:14
          StorageLive(_3);                 // scope 2 at $DIR/cycle.rs:+3:9: +3:10
          nop;                             // scope 2 at $DIR/cycle.rs:+3:13: +3:14
          StorageLive(_4);                 // scope 3 at $DIR/cycle.rs:+4:9: +4:10
          nop;                             // scope 3 at $DIR/cycle.rs:+4:9: +4:10
          nop;                             // scope 3 at $DIR/cycle.rs:+4:5: +4:10
          StorageDead(_4);                 // scope 3 at $DIR/cycle.rs:+4:9: +4:10
          StorageLive(_5);                 // scope 3 at $DIR/cycle.rs:+6:5: +6:12
          StorageLive(_6);                 // scope 3 at $DIR/cycle.rs:+6:10: +6:11
          nop;                             // scope 3 at $DIR/cycle.rs:+6:10: +6:11
          StorageDead(_6);                 // scope 3 at $DIR/cycle.rs:+6:11: +6:12
          StorageDead(_5);                 // scope 3 at $DIR/cycle.rs:+6:12: +6:13
          StorageDead(_3);                 // scope 2 at $DIR/cycle.rs:+7:1: +7:2
          StorageDead(_2);                 // scope 1 at $DIR/cycle.rs:+7:1: +7:2
          StorageDead(_1);                 // scope 0 at $DIR/cycle.rs:+7:1: +7:2
          return;                          // scope 0 at $DIR/cycle.rs:+7:2: +7:2
      }
  }