src/test/mir-opt/retag.main.SimplifyCfg-elaborate-drops.after.mir

   1 // MIR for `main` after SimplifyCfg-elaborate-drops
   2
   3 fn main() -> () {
   4     let mut _0: ();                      // return place in scope 0 at $DIR/retag.rs:29:11: 29:11
   5     let mut _1: i32;                     // in scope 0 at $DIR/retag.rs:30:9: 30:14
   6     let _2: ();                          // in scope 0 at $DIR/retag.rs:31:5: 37:6
   7     let mut _4: &Test;                   // in scope 0 at $DIR/retag.rs:32:17: 32:24
   8     let _5: Test;                        // in scope 0 at $DIR/retag.rs:32:17: 32:24
   9     let mut _6: &mut i32;                // in scope 0 at $DIR/retag.rs:32:29: 32:35
  10     let mut _7: &mut i32;                // in scope 0 at $DIR/retag.rs:32:29: 32:35
  11     let mut _9: &mut i32;                // in scope 0 at $DIR/retag.rs:33:19: 33:20
  12     let mut _12: *mut i32;               // in scope 0 at $DIR/retag.rs:36:18: 36:29
  13     let mut _14: [closure@main::{closure#0}]; // in scope 0 at $DIR/retag.rs:40:31: 43:6
  14     let mut _16: for<'r> fn(&'r i32) -> &'r i32; // in scope 0 at $DIR/retag.rs:44:14: 44:15
  15     let mut _17: &i32;                   // in scope 0 at $DIR/retag.rs:44:16: 44:18
  16     let _18: &i32;                       // in scope 0 at $DIR/retag.rs:44:16: 44:18
  17     let _19: &i32;                       // in scope 0 at $DIR/retag.rs:47:5: 47:24
  18     let mut _20: &Test;                  // in scope 0 at $DIR/retag.rs:47:5: 47:12
  19     let _21: Test;                       // in scope 0 at $DIR/retag.rs:47:5: 47:12
  20     let mut _22: &i32;                   // in scope 0 at $DIR/retag.rs:47:21: 47:23
  21     let _23: &i32;                       // in scope 0 at $DIR/retag.rs:47:21: 47:23
  22     let _24: i32;                        // in scope 0 at $DIR/retag.rs:47:22: 47:23
  23     let mut _26: *const i32;             // in scope 0 at $DIR/retag.rs:50:14: 50:28
  24     scope 1 {
  25         debug x => _1;                   // in scope 1 at $DIR/retag.rs:30:9: 30:14
  26         let _3: &mut i32;                // in scope 1 at $DIR/retag.rs:32:13: 32:14
  27         let _13: for<'r> fn(&'r i32) -> &'r i32; // in scope 1 at $DIR/retag.rs:40:9: 40:10
  28         scope 2 {
  29             debug v => _3;               // in scope 2 at $DIR/retag.rs:32:13: 32:14
  30             let _8: &mut i32;            // in scope 2 at $DIR/retag.rs:33:13: 33:14
  31             scope 3 {
  32                 debug w => _8;           // in scope 3 at $DIR/retag.rs:33:13: 33:14
  33                 let _10: &mut i32;       // in scope 3 at $DIR/retag.rs:34:13: 34:14
  34                 scope 4 {
  35                     debug w => _10;      // in scope 4 at $DIR/retag.rs:34:13: 34:14
  36                     let _11: *mut i32;   // in scope 4 at $DIR/retag.rs:36:13: 36:15
  37                     scope 5 {
  38                         debug _w => _11; // in scope 5 at $DIR/retag.rs:36:13: 36:15
  39                     }
  40                 }
  41             }
  42         }
  43         scope 6 {
  44             debug c => _13;              // in scope 6 at $DIR/retag.rs:40:9: 40:10
  45             let _15: &i32;               // in scope 6 at $DIR/retag.rs:44:9: 44:11
  46             scope 7 {
  47                 debug _w => _15;         // in scope 7 at $DIR/retag.rs:44:9: 44:11
  48                 let _25: *const i32;     // in scope 7 at $DIR/retag.rs:50:9: 50:11
  49                 let mut _27: &i32;       // in scope 7 at $DIR/retag.rs:47:21: 47:23
  50                 scope 8 {
  51                     debug _w => _25;     // in scope 8 at $DIR/retag.rs:50:9: 50:11
  52                 }
  53             }
  54         }
  55     }
  56
  57     bb0: {
  58         StorageLive(_1);                 // scope 0 at $DIR/retag.rs:30:9: 30:14
  59         _1 = const 0_i32;                // scope 0 at $DIR/retag.rs:30:17: 30:18
  60         StorageLive(_2);                 // scope 1 at $DIR/retag.rs:31:5: 37:6
  61         StorageLive(_3);                 // scope 1 at $DIR/retag.rs:32:13: 32:14
  62         StorageLive(_4);                 // scope 1 at $DIR/retag.rs:32:17: 32:24
  63         StorageLive(_5);                 // scope 1 at $DIR/retag.rs:32:17: 32:24
  64         _5 = Test(const 0_i32);          // scope 1 at $DIR/retag.rs:32:17: 32:24
  65         _4 = &_5;                        // scope 1 at $DIR/retag.rs:32:17: 32:24
  66         Retag(_4);                       // scope 1 at $DIR/retag.rs:32:17: 32:24
  67         StorageLive(_6);                 // scope 1 at $DIR/retag.rs:32:29: 32:35
  68         StorageLive(_7);                 // scope 1 at $DIR/retag.rs:32:29: 32:35
  69         _7 = &mut _1;                    // scope 1 at $DIR/retag.rs:32:29: 32:35
  70         Retag(_7);                       // scope 1 at $DIR/retag.rs:32:29: 32:35
  71         _6 = &mut (*_7);                 // scope 1 at $DIR/retag.rs:32:29: 32:35
  72         Retag([2phase] _6);              // scope 1 at $DIR/retag.rs:32:29: 32:35
  73         _3 = Test::foo(move _4, move _6) -> [return: bb1, unwind: bb7]; // scope 1 at $DIR/retag.rs:32:17: 32:36
  74                                          // mir::Constant
  75                                          // + span: $DIR/retag.rs:32:25: 32:28
  76                                          // + literal: Const { ty: for<'r, 'x> fn(&'r Test, &'x mut i32) -> &'x mut i32 {Test::foo}, val: Value(Scalar(<ZST>)) }
  77     }
  78
  79     bb1: {
  80         Retag(_3);                       // scope 1 at $DIR/retag.rs:32:17: 32:36
  81         StorageDead(_6);                 // scope 1 at $DIR/retag.rs:32:35: 32:36
  82         StorageDead(_4);                 // scope 1 at $DIR/retag.rs:32:35: 32:36
  83         StorageDead(_7);                 // scope 1 at $DIR/retag.rs:32:36: 32:37
  84         drop(_5) -> [return: bb2, unwind: bb8]; // scope 1 at $DIR/retag.rs:32:36: 32:37
  85     }
  86
  87     bb2: {
  88         StorageDead(_5);                 // scope 1 at $DIR/retag.rs:32:36: 32:37
  89         StorageLive(_8);                 // scope 2 at $DIR/retag.rs:33:13: 33:14
  90         StorageLive(_9);                 // scope 2 at $DIR/retag.rs:33:19: 33:20
  91         _9 = move _3;                    // scope 2 at $DIR/retag.rs:33:19: 33:20
  92         Retag(_9);                       // scope 2 at $DIR/retag.rs:33:19: 33:20
  93         _8 = &mut (*_9);                 // scope 2 at $DIR/retag.rs:33:19: 33:20
  94         Retag(_8);                       // scope 2 at $DIR/retag.rs:33:19: 33:20
  95         StorageDead(_9);                 // scope 2 at $DIR/retag.rs:33:22: 33:23
  96         StorageLive(_10);                // scope 3 at $DIR/retag.rs:34:13: 34:14
  97         _10 = move _8;                   // scope 3 at $DIR/retag.rs:34:17: 34:18
  98         Retag(_10);                      // scope 3 at $DIR/retag.rs:34:17: 34:18
  99         StorageLive(_11);                // scope 4 at $DIR/retag.rs:36:13: 36:15
 100         StorageLive(_12);                // scope 4 at $DIR/retag.rs:36:18: 36:29
 101         _12 = &raw mut (*_10);           // scope 4 at $DIR/retag.rs:36:18: 36:19
 102         Retag([raw] _12);                // scope 4 at $DIR/retag.rs:36:18: 36:19
 103         _11 = _12;                       // scope 4 at $DIR/retag.rs:36:18: 36:29
 104         StorageDead(_12);                // scope 4 at $DIR/retag.rs:36:29: 36:30
 105         _2 = const ();                   // scope 1 at $DIR/retag.rs:31:5: 37:6
 106         StorageDead(_11);                // scope 4 at $DIR/retag.rs:37:5: 37:6
 107         StorageDead(_10);                // scope 3 at $DIR/retag.rs:37:5: 37:6
 108         StorageDead(_8);                 // scope 2 at $DIR/retag.rs:37:5: 37:6
 109         StorageDead(_3);                 // scope 1 at $DIR/retag.rs:37:5: 37:6
 110         StorageDead(_2);                 // scope 1 at $DIR/retag.rs:37:5: 37:6
 111         StorageLive(_13);                // scope 1 at $DIR/retag.rs:40:9: 40:10
 112         StorageLive(_14);                // scope 1 at $DIR/retag.rs:40:31: 43:6
 113         _14 = [closure@main::{closure#0}]; // scope 1 at $DIR/retag.rs:40:31: 43:6
 114                                          // closure
 115                                          // + def_id: DefId(0:14 ~ retag[317d]::main::{closure#0})
 116                                          // + substs: [
 117                                          //     i8,
 118                                          //     for<'r> extern "rust-call" fn((&'r i32,)) -> &'r i32,
 119                                          //     (),
 120                                          // ]
 121         Retag(_14);                      // scope 1 at $DIR/retag.rs:40:31: 43:6
 122         _13 = move _14 as for<'r> fn(&'r i32) -> &'r i32 (Pointer(ClosureFnPointer(Normal))); // scope 1 at $DIR/retag.rs:40:31: 43:6
 123         StorageDead(_14);                // scope 1 at $DIR/retag.rs:43:5: 43:6
 124         StorageLive(_15);                // scope 6 at $DIR/retag.rs:44:9: 44:11
 125         StorageLive(_16);                // scope 6 at $DIR/retag.rs:44:14: 44:15
 126         _16 = _13;                       // scope 6 at $DIR/retag.rs:44:14: 44:15
 127         StorageLive(_17);                // scope 6 at $DIR/retag.rs:44:16: 44:18
 128         StorageLive(_18);                // scope 6 at $DIR/retag.rs:44:16: 44:18
 129         _18 = &_1;                       // scope 6 at $DIR/retag.rs:44:16: 44:18
 130         Retag(_18);                      // scope 6 at $DIR/retag.rs:44:16: 44:18
 131         _17 = &(*_18);                   // scope 6 at $DIR/retag.rs:44:16: 44:18
 132         Retag(_17);                      // scope 6 at $DIR/retag.rs:44:16: 44:18
 133         _15 = move _16(move _17) -> bb3; // scope 6 at $DIR/retag.rs:44:14: 44:19
 134     }
 135
 136     bb3: {
 137         Retag(_15);                      // scope 6 at $DIR/retag.rs:44:14: 44:19
 138         StorageDead(_17);                // scope 6 at $DIR/retag.rs:44:18: 44:19
 139         StorageDead(_16);                // scope 6 at $DIR/retag.rs:44:18: 44:19
 140         StorageDead(_18);                // scope 6 at $DIR/retag.rs:44:19: 44:20
 141         StorageLive(_19);                // scope 7 at $DIR/retag.rs:47:5: 47:24
 142         StorageLive(_20);                // scope 7 at $DIR/retag.rs:47:5: 47:12
 143         StorageLive(_21);                // scope 7 at $DIR/retag.rs:47:5: 47:12
 144         _21 = Test(const 0_i32);         // scope 7 at $DIR/retag.rs:47:5: 47:12
 145         _20 = &_21;                      // scope 7 at $DIR/retag.rs:47:5: 47:12
 146         Retag(_20);                      // scope 7 at $DIR/retag.rs:47:5: 47:12
 147         StorageLive(_22);                // scope 7 at $DIR/retag.rs:47:21: 47:23
 148         StorageLive(_23);                // scope 7 at $DIR/retag.rs:47:21: 47:23
 149         _27 = const main::promoted[0];   // scope 7 at $DIR/retag.rs:47:21: 47:23
 150                                          // ty::Const
 151                                          // + ty: &i32
 152                                          // + val: Unevaluated(main, [], Some(promoted[0]))
 153                                          // mir::Constant
 154                                          // + span: $DIR/retag.rs:47:21: 47:23
 155                                          // + literal: Const { ty: &i32, val: Unevaluated(Unevaluated { def: WithOptConstParam { did: DefId(0:13 ~ retag[317d]::main), const_param_did: None }, substs: [], promoted: Some(promoted[0]) }) }
 156         Retag(_27);                      // scope 7 at $DIR/retag.rs:47:21: 47:23
 157         _23 = &(*_27);                   // scope 7 at $DIR/retag.rs:47:21: 47:23
 158         Retag(_23);                      // scope 7 at $DIR/retag.rs:47:21: 47:23
 159         _22 = &(*_23);                   // scope 7 at $DIR/retag.rs:47:21: 47:23
 160         Retag(_22);                      // scope 7 at $DIR/retag.rs:47:21: 47:23
 161         _19 = Test::foo_shr(move _20, move _22) -> [return: bb4, unwind: bb6]; // scope 7 at $DIR/retag.rs:47:5: 47:24
 162                                          // mir::Constant
 163                                          // + span: $DIR/retag.rs:47:13: 47:20
 164                                          // + literal: Const { ty: for<'r, 'x> fn(&'r Test, &'x i32) -> &'x i32 {Test::foo_shr}, val: Value(Scalar(<ZST>)) }
 165     }
 166
 167     bb4: {
 168         Retag(_19);                      // scope 7 at $DIR/retag.rs:47:5: 47:24
 169         StorageDead(_22);                // scope 7 at $DIR/retag.rs:47:23: 47:24
 170         StorageDead(_20);                // scope 7 at $DIR/retag.rs:47:23: 47:24
 171         StorageDead(_23);                // scope 7 at $DIR/retag.rs:47:24: 47:25
 172         drop(_21) -> [return: bb5, unwind: bb8]; // scope 7 at $DIR/retag.rs:47:24: 47:25
 173     }
 174
 175     bb5: {
 176         StorageDead(_21);                // scope 7 at $DIR/retag.rs:47:24: 47:25
 177         StorageDead(_19);                // scope 7 at $DIR/retag.rs:47:24: 47:25
 178         StorageLive(_25);                // scope 7 at $DIR/retag.rs:50:9: 50:11
 179         StorageLive(_26);                // scope 7 at $DIR/retag.rs:50:14: 50:28
 180         _26 = &raw const (*_15);         // scope 7 at $DIR/retag.rs:50:14: 50:16
 181         Retag([raw] _26);                // scope 7 at $DIR/retag.rs:50:14: 50:16
 182         _25 = _26;                       // scope 7 at $DIR/retag.rs:50:14: 50:28
 183         StorageDead(_26);                // scope 7 at $DIR/retag.rs:50:28: 50:29
 184         _0 = const ();                   // scope 0 at $DIR/retag.rs:29:11: 51:2
 185         StorageDead(_25);                // scope 7 at $DIR/retag.rs:51:1: 51:2
 186         StorageDead(_15);                // scope 6 at $DIR/retag.rs:51:1: 51:2
 187         StorageDead(_13);                // scope 1 at $DIR/retag.rs:51:1: 51:2
 188         StorageDead(_1);                 // scope 0 at $DIR/retag.rs:51:1: 51:2
 189         return;                          // scope 0 at $DIR/retag.rs:51:2: 51:2
 190     }
 191
 192     bb6 (cleanup): {
 193         drop(_21) -> bb8;                // scope 7 at $DIR/retag.rs:47:24: 47:25
 194     }
 195
 196     bb7 (cleanup): {
 197         drop(_5) -> bb8;                 // scope 1 at $DIR/retag.rs:32:36: 32:37
 198     }
 199
 200     bb8 (cleanup): {
 201         resume;                          // scope 0 at $DIR/retag.rs:29:1: 51:2
 202     }
 203 }