tests/mir-opt/uninhabited_enum_branching.main.SimplifyCfg-after-uninhabited-enum-branching.after.mir

   1 // MIR for `main` after SimplifyCfg-after-uninhabited-enum-branching
   2
   3 fn main() -> () {
   4     let mut _0: ();                      // return place in scope 0 at $DIR/uninhabited_enum_branching.rs:+0:11: +0:11
   5     let _1: &str;                        // in scope 0 at $DIR/uninhabited_enum_branching.rs:+1:5: +5:6
   6     let mut _2: Test1;                   // in scope 0 at $DIR/uninhabited_enum_branching.rs:+1:11: +1:19
   7     let mut _3: isize;                   // in scope 0 at $DIR/uninhabited_enum_branching.rs:+2:9: +2:20
   8     let _4: &str;                        // in scope 0 at $DIR/uninhabited_enum_branching.rs:+3:24: +3:34
   9     let _5: &str;                        // in scope 0 at $DIR/uninhabited_enum_branching.rs:+4:21: +4:24
  10     let _6: &str;                        // in scope 0 at $DIR/uninhabited_enum_branching.rs:+7:5: +10:6
  11     let mut _7: Test2;                   // in scope 0 at $DIR/uninhabited_enum_branching.rs:+7:11: +7:19
  12     let mut _8: isize;                   // in scope 0 at $DIR/uninhabited_enum_branching.rs:+8:9: +8:17
  13     let _9: &str;                        // in scope 0 at $DIR/uninhabited_enum_branching.rs:+9:21: +9:24
  14
  15     bb0: {
  16         StorageLive(_1);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:+1:5: +5:6
  17         StorageLive(_2);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:+1:11: +1:19
  18         _2 = Test1::C;                   // scope 0 at $DIR/uninhabited_enum_branching.rs:+1:11: +1:19
  19         _3 = discriminant(_2);           // scope 0 at $DIR/uninhabited_enum_branching.rs:+1:11: +1:19
  20         switchInt(move _3) -> [2: bb1, otherwise: bb2]; // scope 0 at $DIR/uninhabited_enum_branching.rs:+1:5: +1:19
  21     }
  22
  23     bb1: {
  24         StorageLive(_5);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:+4:21: +4:24
  25         _5 = const "C";                  // scope 0 at $DIR/uninhabited_enum_branching.rs:+4:21: +4:24
  26                                          // mir::Constant
  27                                          // + span: $DIR/uninhabited_enum_branching.rs:23:21: 23:24
  28                                          // + literal: Const { ty: &str, val: Value(Slice(..)) }
  29         _1 = &(*_5);                     // scope 0 at $DIR/uninhabited_enum_branching.rs:+4:21: +4:24
  30         StorageDead(_5);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:+4:23: +4:24
  31         StorageDead(_2);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:+5:6: +5:7
  32         StorageDead(_1);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:+5:6: +5:7
  33         StorageLive(_6);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:+7:5: +10:6
  34         StorageLive(_7);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:+7:11: +7:19
  35         _7 = Test2::D;                   // scope 0 at $DIR/uninhabited_enum_branching.rs:+7:11: +7:19
  36         _8 = discriminant(_7);           // scope 0 at $DIR/uninhabited_enum_branching.rs:+7:11: +7:19
  37         switchInt(move _8) -> [4: bb5, 5: bb3, otherwise: bb4]; // scope 0 at $DIR/uninhabited_enum_branching.rs:+7:5: +7:19
  38     }
  39
  40     bb2: {
  41         unreachable;                     // scope 0 at $DIR/uninhabited_enum_branching.rs:+1:11: +1:19
  42     }
  43
  44     bb3: {
  45         StorageLive(_9);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:+9:21: +9:24
  46         _9 = const "E";                  // scope 0 at $DIR/uninhabited_enum_branching.rs:+9:21: +9:24
  47                                          // mir::Constant
  48                                          // + span: $DIR/uninhabited_enum_branching.rs:28:21: 28:24
  49                                          // + literal: Const { ty: &str, val: Value(Slice(..)) }
  50         _6 = &(*_9);                     // scope 0 at $DIR/uninhabited_enum_branching.rs:+9:21: +9:24
  51         StorageDead(_9);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:+9:23: +9:24
  52         goto -> bb6;                     // scope 0 at $DIR/uninhabited_enum_branching.rs:+9:23: +9:24
  53     }
  54
  55     bb4: {
  56         unreachable;                     // scope 0 at $DIR/uninhabited_enum_branching.rs:+7:11: +7:19
  57     }
  58
  59     bb5: {
  60         _6 = const "D";                  // scope 0 at $DIR/uninhabited_enum_branching.rs:+8:21: +8:24
  61                                          // mir::Constant
  62                                          // + span: $DIR/uninhabited_enum_branching.rs:27:21: 27:24
  63                                          // + literal: Const { ty: &str, val: Value(Slice(..)) }
  64         goto -> bb6;                     // scope 0 at $DIR/uninhabited_enum_branching.rs:+8:21: +8:24
  65     }
  66
  67     bb6: {
  68         StorageDead(_7);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:+10:6: +10:7
  69         StorageDead(_6);                 // scope 0 at $DIR/uninhabited_enum_branching.rs:+10:6: +10:7
  70         _0 = const ();                   // scope 0 at $DIR/uninhabited_enum_branching.rs:+0:11: +11:2
  71         return;                          // scope 0 at $DIR/uninhabited_enum_branching.rs:+11:2: +11:2
  72     }
  73 }