src/test/mir-opt/nll/region-subtyping-basic/64bit/rustc.main.nll.0.mir

   1 // MIR for `main` 0 nll
   2
   3 | Free Region Mapping
   4 | '_#0r | Global | ['_#0r, '_#1r]
   5 | '_#1r | Local | ['_#1r]
   6 |
   7 | Inferred Region Values
   8 | '_#0r | U0 | {bb0[0..=8], bb1[0], bb2[0..=8], bb3[0], bb4[0..=1], bb5[0..=3], bb6[0..=3], bb7[0..=2], bb8[0..=5], '_#0r, '_#1r}
   9 | '_#1r | U0 | {bb0[0..=8], bb1[0], bb2[0..=8], bb3[0], bb4[0..=1], bb5[0..=3], bb6[0..=3], bb7[0..=2], bb8[0..=5], '_#1r}
  10 | '_#2r | U0 | {bb2[0..=8], bb3[0], bb5[0..=2]}
  11 | '_#3r | U0 | {bb2[1..=8], bb3[0], bb5[0..=2]}
  12 | '_#4r | U0 | {bb2[4..=8], bb3[0], bb5[0..=2]}
  13 |
  14 | Inference Constraints
  15 | '_#0r live at {bb0[0..=8], bb1[0], bb2[0..=8], bb3[0], bb4[0..=1], bb5[0..=3], bb6[0..=3], bb7[0..=2], bb8[0..=5]}
  16 | '_#1r live at {bb0[0..=8], bb1[0], bb2[0..=8], bb3[0], bb4[0..=1], bb5[0..=3], bb6[0..=3], bb7[0..=2], bb8[0..=5]}
  17 | '_#2r live at {bb2[0]}
  18 | '_#3r live at {bb2[1..=3]}
  19 | '_#4r live at {bb2[4..=8], bb3[0], bb5[0..=2]}
  20 | '_#2r: '_#3r due to Assignment at Single(bb2[0])
  21 | '_#3r: '_#4r due to Assignment at Single(bb2[3])
  22 |
  23 fn main() -> () {
  24     let mut _0: ();                      // return place in scope 0 at $DIR/region-subtyping-basic.rs:14:11: 14:11
  25     let mut _1: [usize; Const { ty: usize, val: Value(Scalar(0x0000000000000003)) }]; // in scope 0 at $DIR/region-subtyping-basic.rs:15:9: 15:14
  26     let _3: usize;                       // in scope 0 at $DIR/region-subtyping-basic.rs:16:16: 16:17
  27     let mut _4: usize;                   // in scope 0 at $DIR/region-subtyping-basic.rs:16:14: 16:18
  28     let mut _5: bool;                    // in scope 0 at $DIR/region-subtyping-basic.rs:16:14: 16:18
  29     let mut _7: bool;                    // in scope 0 at $DIR/region-subtyping-basic.rs:18:8: 18:12
  30     let _8: bool;                        // in scope 0 at $DIR/region-subtyping-basic.rs:19:9: 19:18
  31     let mut _9: usize;                   // in scope 0 at $DIR/region-subtyping-basic.rs:19:15: 19:17
  32     let _10: bool;                       // in scope 0 at $DIR/region-subtyping-basic.rs:21:9: 21:18
  33     scope 1 {
  34         debug v => _1;                   // in scope 1 at $DIR/region-subtyping-basic.rs:15:9: 15:14
  35         let _2: &'_#3r usize;            // in scope 1 at $DIR/region-subtyping-basic.rs:16:9: 16:10
  36         scope 2 {
  37             debug p => _2;               // in scope 2 at $DIR/region-subtyping-basic.rs:16:9: 16:10
  38             let _6: &'_#4r usize;        // in scope 2 at $DIR/region-subtyping-basic.rs:17:9: 17:10
  39             scope 3 {
  40                 debug q => _6;           // in scope 3 at $DIR/region-subtyping-basic.rs:17:9: 17:10
  41             }
  42         }
  43     }
  44
  45     bb0: {
  46         StorageLive(_1);                 // bb0[0]: scope 0 at $DIR/region-subtyping-basic.rs:15:9: 15:14
  47         _1 = [const Const(Value(Scalar(0x0000000000000001)): usize), const Const(Value(Scalar(0x0000000000000002)): usize), const Const(Value(Scalar(0x0000000000000003)): usize)]; // bb0[1]: scope 0 at $DIR/region-subtyping-basic.rs:15:17: 15:26
  48                                          // ty::Const
  49                                          // + ty: usize
  50                                          // + val: Value(Scalar(0x0000000000000001))
  51                                          // mir::Constant
  52                                          // + span: $DIR/region-subtyping-basic.rs:15:18: 15:19
  53                                          // + literal: Const { ty: usize, val: Value(Scalar(0x0000000000000001)) }
  54                                          // ty::Const
  55                                          // + ty: usize
  56                                          // + val: Value(Scalar(0x0000000000000002))
  57                                          // mir::Constant
  58                                          // + span: $DIR/region-subtyping-basic.rs:15:21: 15:22
  59                                          // + literal: Const { ty: usize, val: Value(Scalar(0x0000000000000002)) }
  60                                          // ty::Const
  61                                          // + ty: usize
  62                                          // + val: Value(Scalar(0x0000000000000003))
  63                                          // mir::Constant
  64                                          // + span: $DIR/region-subtyping-basic.rs:15:24: 15:25
  65                                          // + literal: Const { ty: usize, val: Value(Scalar(0x0000000000000003)) }
  66         FakeRead(ForLet, _1);            // bb0[2]: scope 0 at $DIR/region-subtyping-basic.rs:15:9: 15:14
  67         StorageLive(_2);                 // bb0[3]: scope 1 at $DIR/region-subtyping-basic.rs:16:9: 16:10
  68         StorageLive(_3);                 // bb0[4]: scope 1 at $DIR/region-subtyping-basic.rs:16:16: 16:17
  69         _3 = const Const(Value(Scalar(0x0000000000000000)): usize); // bb0[5]: scope 1 at $DIR/region-subtyping-basic.rs:16:16: 16:17
  70                                          // ty::Const
  71                                          // + ty: usize
  72                                          // + val: Value(Scalar(0x0000000000000000))
  73                                          // mir::Constant
  74                                          // + span: $DIR/region-subtyping-basic.rs:16:16: 16:17
  75                                          // + literal: Const { ty: usize, val: Value(Scalar(0x0000000000000000)) }
  76         _4 = Len(_1);                    // bb0[6]: scope 1 at $DIR/region-subtyping-basic.rs:16:14: 16:18
  77         _5 = Lt(_3, _4);                 // bb0[7]: scope 1 at $DIR/region-subtyping-basic.rs:16:14: 16:18
  78         assert(move _5, "index out of bounds: the len is {} but the index is {}", move _4, _3) -> [success: bb2, unwind: bb1]; // bb0[8]: scope 1 at $DIR/region-subtyping-basic.rs:16:14: 16:18
  79     }
  80
  81     bb1 (cleanup): {
  82         resume;                          // bb1[0]: scope 0 at $DIR/region-subtyping-basic.rs:14:1: 23:2
  83     }
  84
  85     bb2: {
  86         _2 = &'_#2r _1[_3];              // bb2[0]: scope 1 at $DIR/region-subtyping-basic.rs:16:13: 16:18
  87         FakeRead(ForLet, _2);            // bb2[1]: scope 1 at $DIR/region-subtyping-basic.rs:16:9: 16:10
  88         StorageLive(_6);                 // bb2[2]: scope 2 at $DIR/region-subtyping-basic.rs:17:9: 17:10
  89         _6 = _2;                         // bb2[3]: scope 2 at $DIR/region-subtyping-basic.rs:17:13: 17:14
  90         FakeRead(ForLet, _6);            // bb2[4]: scope 2 at $DIR/region-subtyping-basic.rs:17:9: 17:10
  91         StorageLive(_7);                 // bb2[5]: scope 3 at $DIR/region-subtyping-basic.rs:18:8: 18:12
  92         _7 = const Const(Value(Scalar(0x01)): bool); // bb2[6]: scope 3 at $DIR/region-subtyping-basic.rs:18:8: 18:12
  93                                          // ty::Const
  94                                          // + ty: bool
  95                                          // + val: Value(Scalar(0x01))
  96                                          // mir::Constant
  97                                          // + span: $DIR/region-subtyping-basic.rs:18:8: 18:12
  98                                          // + literal: Const { ty: bool, val: Value(Scalar(0x01)) }
  99         FakeRead(ForMatchedPlace, _7);   // bb2[7]: scope 3 at $DIR/region-subtyping-basic.rs:18:8: 18:12
 100         switchInt(_7) -> [Const(Value(Scalar(0x00)): bool): bb4, otherwise: bb3]; // bb2[8]: scope 3 at $DIR/region-subtyping-basic.rs:18:5: 22:6
 101     }
 102
 103     bb3: {
 104         falseEdges -> [real: bb5, imaginary: bb4]; // bb3[0]: scope 3 at $DIR/region-subtyping-basic.rs:18:5: 22:6
 105     }
 106
 107     bb4: {
 108         StorageLive(_10);                // bb4[0]: scope 3 at $DIR/region-subtyping-basic.rs:21:9: 21:18
 109         _10 = const Const(Value(Scalar(<ZST>)): fn(usize) -> bool {use_x})(const Const(Value(Scalar(0x0000000000000016)): usize)) -> [return: bb7, unwind: bb1]; // bb4[1]: scope 3 at $DIR/region-subtyping-basic.rs:21:9: 21:18
 110                                          // ty::Const
 111                                          // + ty: fn(usize) -> bool {use_x}
 112                                          // + val: Value(Scalar(<ZST>))
 113                                          // mir::Constant
 114                                          // + span: $DIR/region-subtyping-basic.rs:21:9: 21:14
 115                                          // + literal: Const { ty: fn(usize) -> bool {use_x}, val: Value(Scalar(<ZST>)) }
 116                                          // ty::Const
 117                                          // + ty: usize
 118                                          // + val: Value(Scalar(0x0000000000000016))
 119                                          // mir::Constant
 120                                          // + span: $DIR/region-subtyping-basic.rs:21:15: 21:17
 121                                          // + literal: Const { ty: usize, val: Value(Scalar(0x0000000000000016)) }
 122     }
 123
 124     bb5: {
 125         StorageLive(_8);                 // bb5[0]: scope 3 at $DIR/region-subtyping-basic.rs:19:9: 19:18
 126         StorageLive(_9);                 // bb5[1]: scope 3 at $DIR/region-subtyping-basic.rs:19:15: 19:17
 127         _9 = (*_6);                      // bb5[2]: scope 3 at $DIR/region-subtyping-basic.rs:19:15: 19:17
 128         _8 = const Const(Value(Scalar(<ZST>)): fn(usize) -> bool {use_x})(move _9) -> [return: bb6, unwind: bb1]; // bb5[3]: scope 3 at $DIR/region-subtyping-basic.rs:19:9: 19:18
 129                                          // ty::Const
 130                                          // + ty: fn(usize) -> bool {use_x}
 131                                          // + val: Value(Scalar(<ZST>))
 132                                          // mir::Constant
 133                                          // + span: $DIR/region-subtyping-basic.rs:19:9: 19:14
 134                                          // + literal: Const { ty: fn(usize) -> bool {use_x}, val: Value(Scalar(<ZST>)) }
 135     }
 136
 137     bb6: {
 138         StorageDead(_9);                 // bb6[0]: scope 3 at $DIR/region-subtyping-basic.rs:19:17: 19:18
 139         StorageDead(_8);                 // bb6[1]: scope 3 at $DIR/region-subtyping-basic.rs:19:18: 19:19
 140         _0 = const Const(Value(Scalar(<ZST>)): ()); // bb6[2]: scope 3 at $DIR/region-subtyping-basic.rs:18:13: 20:6
 141                                          // ty::Const
 142                                          // + ty: ()
 143                                          // + val: Value(Scalar(<ZST>))
 144                                          // mir::Constant
 145                                          // + span: $DIR/region-subtyping-basic.rs:18:13: 20:6
 146                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
 147         goto -> bb8;                     // bb6[3]: scope 3 at $DIR/region-subtyping-basic.rs:18:5: 22:6
 148     }
 149
 150     bb7: {
 151         StorageDead(_10);                // bb7[0]: scope 3 at $DIR/region-subtyping-basic.rs:21:18: 21:19
 152         _0 = const Const(Value(Scalar(<ZST>)): ()); // bb7[1]: scope 3 at $DIR/region-subtyping-basic.rs:20:12: 22:6
 153                                          // ty::Const
 154                                          // + ty: ()
 155                                          // + val: Value(Scalar(<ZST>))
 156                                          // mir::Constant
 157                                          // + span: $DIR/region-subtyping-basic.rs:20:12: 22:6
 158                                          // + literal: Const { ty: (), val: Value(Scalar(<ZST>)) }
 159         goto -> bb8;                     // bb7[2]: scope 3 at $DIR/region-subtyping-basic.rs:18:5: 22:6
 160     }
 161
 162     bb8: {
 163         StorageDead(_6);                 // bb8[0]: scope 2 at $DIR/region-subtyping-basic.rs:23:1: 23:2
 164         StorageDead(_3);                 // bb8[1]: scope 1 at $DIR/region-subtyping-basic.rs:23:1: 23:2
 165         StorageDead(_2);                 // bb8[2]: scope 1 at $DIR/region-subtyping-basic.rs:23:1: 23:2
 166         StorageDead(_1);                 // bb8[3]: scope 0 at $DIR/region-subtyping-basic.rs:23:1: 23:2
 167         StorageDead(_7);                 // bb8[4]: scope 0 at $DIR/region-subtyping-basic.rs:23:1: 23:2
 168         return;                          // bb8[5]: scope 0 at $DIR/region-subtyping-basic.rs:23:2: 23:2
 169     }
 170 }