rust/tests/mir-opt/derefer_terminator_test.main.Derefer.diff

- // MIR for `main` before Derefer
+ // MIR for `main` after Derefer
  
  fn main() -> () {
      let mut _0: ();                      // return place in scope 0 at $DIR/derefer_terminator_test.rs:+0:11: +0:11
      let _1: bool;                        // in scope 0 at $DIR/derefer_terminator_test.rs:+1:9: +1:10
      let _3: ();                          // in scope 0 at $DIR/derefer_terminator_test.rs:+3:5: +6:6
      let mut _4: &&&&bool;                // in scope 0 at $DIR/derefer_terminator_test.rs:+3:15: +3:22
      let _5: &&&bool;                     // in scope 0 at $DIR/derefer_terminator_test.rs:+3:17: +3:21
      let _6: &&bool;                      // in scope 0 at $DIR/derefer_terminator_test.rs:+3:18: +3:21
      let _7: &bool;                       // in scope 0 at $DIR/derefer_terminator_test.rs:+3:19: +3:21
+     let mut _10: &&&bool;                // in scope 0 at $DIR/derefer_terminator_test.rs:+3:15: +3:22
+     let mut _11: &&bool;                 // in scope 0 at $DIR/derefer_terminator_test.rs:+3:15: +3:22
+     let mut _12: &bool;                  // in scope 0 at $DIR/derefer_terminator_test.rs:+3:15: +3:22
      scope 1 {
          debug b => _1;                   // in scope 1 at $DIR/derefer_terminator_test.rs:+1:9: +1:10
          let _2: bool;                    // in scope 1 at $DIR/derefer_terminator_test.rs:+2:9: +2:10
          scope 2 {
              debug d => _2;               // in scope 2 at $DIR/derefer_terminator_test.rs:+2:9: +2:10
              let _8: i32;                 // in scope 2 at $DIR/derefer_terminator_test.rs:+4:22: +4:23
              let _9: i32;                 // in scope 2 at $DIR/derefer_terminator_test.rs:+7:9: +7:10
              scope 3 {
                  debug x => _8;           // in scope 3 at $DIR/derefer_terminator_test.rs:+4:22: +4:23
              }
              scope 4 {
                  debug y => _9;           // in scope 4 at $DIR/derefer_terminator_test.rs:+7:9: +7:10
              }
          }
      }
  
      bb0: {
          StorageLive(_1);                 // scope 0 at $DIR/derefer_terminator_test.rs:+1:9: +1:10
          _1 = foo() -> bb1;               // scope 0 at $DIR/derefer_terminator_test.rs:+1:13: +1:18
                                           // mir::Constant
                                           // + span: $DIR/derefer_terminator_test.rs:6:13: 6:16
                                           // + literal: Const { ty: fn() -> bool {foo}, val: Value(<ZST>) }
      }
  
      bb1: {
          StorageLive(_2);                 // scope 1 at $DIR/derefer_terminator_test.rs:+2:9: +2:10
          _2 = foo() -> bb2;               // scope 1 at $DIR/derefer_terminator_test.rs:+2:13: +2:18
                                           // mir::Constant
                                           // + span: $DIR/derefer_terminator_test.rs:7:13: 7:16
                                           // + literal: Const { ty: fn() -> bool {foo}, val: Value(<ZST>) }
      }
  
      bb2: {
          StorageLive(_3);                 // scope 2 at $DIR/derefer_terminator_test.rs:+3:5: +6:6
          StorageLive(_4);                 // scope 2 at $DIR/derefer_terminator_test.rs:+3:15: +3:22
          StorageLive(_5);                 // scope 2 at $DIR/derefer_terminator_test.rs:+3:17: +3:21
          StorageLive(_6);                 // scope 2 at $DIR/derefer_terminator_test.rs:+3:18: +3:21
          StorageLive(_7);                 // scope 2 at $DIR/derefer_terminator_test.rs:+3:19: +3:21
          _7 = &_1;                        // scope 2 at $DIR/derefer_terminator_test.rs:+3:19: +3:21
          _6 = &_7;                        // scope 2 at $DIR/derefer_terminator_test.rs:+3:18: +3:21
          _5 = &_6;                        // scope 2 at $DIR/derefer_terminator_test.rs:+3:17: +3:21
          _4 = &_5;                        // scope 2 at $DIR/derefer_terminator_test.rs:+3:15: +3:22
-         switchInt((*(*(*(*_4))))) -> [0: bb3, otherwise: bb4]; // scope 2 at $DIR/derefer_terminator_test.rs:+3:5: +3:22
+         _10 = deref_copy (*_4);          // scope 2 at $DIR/derefer_terminator_test.rs:+3:5: +3:22
+         _11 = deref_copy (*_10);         // scope 2 at $DIR/derefer_terminator_test.rs:+3:5: +3:22
+         _12 = deref_copy (*_11);         // scope 2 at $DIR/derefer_terminator_test.rs:+3:5: +3:22
+         switchInt((*_12)) -> [0: bb3, otherwise: bb4]; // scope 2 at $DIR/derefer_terminator_test.rs:+3:5: +3:22
      }
  
      bb3: {
          _3 = const ();                   // scope 2 at $DIR/derefer_terminator_test.rs:+5:18: +5:20
          goto -> bb5;                     // scope 2 at $DIR/derefer_terminator_test.rs:+5:18: +5:20
      }
  
      bb4: {
          StorageLive(_8);                 // scope 2 at $DIR/derefer_terminator_test.rs:+4:22: +4:23
          _8 = const 5_i32;                // scope 2 at $DIR/derefer_terminator_test.rs:+4:26: +4:27
          _3 = const ();                   // scope 2 at $DIR/derefer_terminator_test.rs:+4:17: +4:29
          StorageDead(_8);                 // scope 2 at $DIR/derefer_terminator_test.rs:+4:28: +4:29
          goto -> bb5;                     // scope 2 at $DIR/derefer_terminator_test.rs:+4:28: +4:29
      }
  
      bb5: {
          StorageDead(_7);                 // scope 2 at $DIR/derefer_terminator_test.rs:+6:5: +6:6
          StorageDead(_6);                 // scope 2 at $DIR/derefer_terminator_test.rs:+6:5: +6:6
          StorageDead(_5);                 // scope 2 at $DIR/derefer_terminator_test.rs:+6:5: +6:6
          StorageDead(_4);                 // scope 2 at $DIR/derefer_terminator_test.rs:+6:5: +6:6
          StorageDead(_3);                 // scope 2 at $DIR/derefer_terminator_test.rs:+6:5: +6:6
          StorageLive(_9);                 // scope 2 at $DIR/derefer_terminator_test.rs:+7:9: +7:10
          _9 = const 42_i32;               // scope 2 at $DIR/derefer_terminator_test.rs:+7:13: +7:15
          _0 = const ();                   // scope 0 at $DIR/derefer_terminator_test.rs:+0:11: +8:2
          StorageDead(_9);                 // scope 2 at $DIR/derefer_terminator_test.rs:+8:1: +8:2
          StorageDead(_2);                 // scope 1 at $DIR/derefer_terminator_test.rs:+8:1: +8:2
          StorageDead(_1);                 // scope 0 at $DIR/derefer_terminator_test.rs:+8:1: +8:2
          return;                          // scope 0 at $DIR/derefer_terminator_test.rs:+8:2: +8:2
      }
  }