src/test/mir-opt/separate_const_switch.identity.PreCodegen.after.mir

   1 // MIR for `identity` after PreCodegen
   2
   3 fn identity(_1: Result<i32, i32>) -> Result<i32, i32> {
   4     debug x => _1;                       // in scope 0 at $DIR/separate_const_switch.rs:28:13: 28:14
   5     let mut _0: std::result::Result<i32, i32>; // return place in scope 0 at $DIR/separate_const_switch.rs:28:37: 28:53
   6     let mut _2: i32;                     // in scope 0 at $DIR/separate_const_switch.rs:29:8: 29:10
   7     let mut _3: std::ops::ControlFlow<std::result::Result<std::convert::Infallible, i32>, i32>; // in scope 0 at $DIR/separate_const_switch.rs:29:8: 29:10
   8     let mut _4: std::result::Result<i32, i32>; // in scope 0 at $DIR/separate_const_switch.rs:29:8: 29:9
   9     let _5: std::result::Result<std::convert::Infallible, i32>; // in scope 0 at $DIR/separate_const_switch.rs:29:9: 29:10
  10     let mut _6: std::result::Result<std::convert::Infallible, i32>; // in scope 0 at $DIR/separate_const_switch.rs:29:9: 29:10
  11     let _7: i32;                         // in scope 0 at $DIR/separate_const_switch.rs:29:8: 29:10
  12     scope 1 {
  13         debug residual => _5;            // in scope 1 at $DIR/separate_const_switch.rs:29:9: 29:10
  14         scope 2 {
  15             scope 8 (inlined <Result<i32, i32> as FromResidual<Result<Infallible, i32>>>::from_residual) { // at $DIR/separate_const_switch.rs:29:8: 29:10
  16                 debug residual => _6;    // in scope 8 at $DIR/separate_const_switch.rs:29:8: 29:10
  17                 let _14: i32;            // in scope 8 at $DIR/separate_const_switch.rs:29:8: 29:10
  18                 let mut _15: i32;        // in scope 8 at $DIR/separate_const_switch.rs:29:8: 29:10
  19                 let mut _16: i32;        // in scope 8 at $DIR/separate_const_switch.rs:29:8: 29:10
  20                 scope 9 {
  21                     debug e => _14;      // in scope 9 at $DIR/separate_const_switch.rs:29:8: 29:10
  22                     scope 10 (inlined <i32 as From<i32>>::from) { // at $DIR/separate_const_switch.rs:29:8: 29:10
  23                         debug t => _16;  // in scope 10 at $DIR/separate_const_switch.rs:29:8: 29:10
  24                     }
  25                 }
  26             }
  27         }
  28     }
  29     scope 3 {
  30         debug val => _7;                 // in scope 3 at $DIR/separate_const_switch.rs:29:8: 29:10
  31         scope 4 {
  32         }
  33     }
  34     scope 5 (inlined <Result<i32, i32> as Try>::branch) { // at $DIR/separate_const_switch.rs:29:8: 29:10
  35         debug self => _4;                // in scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
  36         let mut _8: isize;               // in scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
  37         let _9: i32;                     // in scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
  38         let mut _10: i32;                // in scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
  39         let _11: i32;                    // in scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
  40         let mut _12: std::result::Result<std::convert::Infallible, i32>; // in scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
  41         let mut _13: i32;                // in scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
  42         scope 6 {
  43             debug v => _9;               // in scope 6 at $DIR/separate_const_switch.rs:29:8: 29:10
  44         }
  45         scope 7 {
  46             debug e => _11;              // in scope 7 at $DIR/separate_const_switch.rs:29:8: 29:10
  47         }
  48     }
  49
  50     bb0: {
  51         StorageLive(_2);                 // scope 0 at $DIR/separate_const_switch.rs:29:8: 29:10
  52         StorageLive(_3);                 // scope 0 at $DIR/separate_const_switch.rs:29:8: 29:10
  53         StorageLive(_4);                 // scope 0 at $DIR/separate_const_switch.rs:29:8: 29:9
  54         _4 = _1;                         // scope 0 at $DIR/separate_const_switch.rs:29:8: 29:9
  55         StorageLive(_8);                 // scope 0 at $DIR/separate_const_switch.rs:29:8: 29:10
  56         _8 = discriminant(_4);           // scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
  57         switchInt(move _8) -> [0_isize: bb3, 1_isize: bb1, otherwise: bb2]; // scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
  58     }
  59
  60     bb1: {
  61         StorageLive(_11);                // scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
  62         _11 = move ((_4 as Err).0: i32); // scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
  63         StorageLive(_12);                // scope 7 at $DIR/separate_const_switch.rs:29:8: 29:10
  64         StorageLive(_13);                // scope 7 at $DIR/separate_const_switch.rs:29:8: 29:10
  65         _13 = move _11;                  // scope 7 at $DIR/separate_const_switch.rs:29:8: 29:10
  66         ((_12 as Err).0: i32) = move _13; // scope 7 at $DIR/separate_const_switch.rs:29:8: 29:10
  67         discriminant(_12) = 1;           // scope 7 at $DIR/separate_const_switch.rs:29:8: 29:10
  68         StorageDead(_13);                // scope 7 at $DIR/separate_const_switch.rs:29:8: 29:10
  69         ((_3 as Break).0: std::result::Result<std::convert::Infallible, i32>) = move _12; // scope 7 at $DIR/separate_const_switch.rs:29:8: 29:10
  70         discriminant(_3) = 1;            // scope 7 at $DIR/separate_const_switch.rs:29:8: 29:10
  71         StorageDead(_12);                // scope 7 at $DIR/separate_const_switch.rs:29:8: 29:10
  72         StorageDead(_11);                // scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
  73         StorageDead(_8);                 // scope 0 at $DIR/separate_const_switch.rs:29:8: 29:10
  74         StorageDead(_4);                 // scope 0 at $DIR/separate_const_switch.rs:29:9: 29:10
  75         StorageLive(_5);                 // scope 0 at $DIR/separate_const_switch.rs:29:9: 29:10
  76         _5 = ((_3 as Break).0: std::result::Result<std::convert::Infallible, i32>); // scope 0 at $DIR/separate_const_switch.rs:29:9: 29:10
  77         StorageLive(_6);                 // scope 2 at $DIR/separate_const_switch.rs:29:9: 29:10
  78         _6 = _5;                         // scope 2 at $DIR/separate_const_switch.rs:29:9: 29:10
  79         StorageLive(_14);                // scope 8 at $DIR/separate_const_switch.rs:29:8: 29:10
  80         _14 = move ((_6 as Err).0: i32); // scope 8 at $DIR/separate_const_switch.rs:29:8: 29:10
  81         StorageLive(_15);                // scope 9 at $DIR/separate_const_switch.rs:29:8: 29:10
  82         StorageLive(_16);                // scope 9 at $DIR/separate_const_switch.rs:29:8: 29:10
  83         _16 = move _14;                  // scope 9 at $DIR/separate_const_switch.rs:29:8: 29:10
  84         _15 = move _16;                  // scope 10 at $DIR/separate_const_switch.rs:29:8: 29:10
  85         StorageDead(_16);                // scope 9 at $DIR/separate_const_switch.rs:29:8: 29:10
  86         ((_0 as Err).0: i32) = move _15; // scope 9 at $DIR/separate_const_switch.rs:29:8: 29:10
  87         discriminant(_0) = 1;            // scope 9 at $DIR/separate_const_switch.rs:29:8: 29:10
  88         StorageDead(_15);                // scope 9 at $DIR/separate_const_switch.rs:29:8: 29:10
  89         StorageDead(_14);                // scope 8 at $DIR/separate_const_switch.rs:29:8: 29:10
  90         StorageDead(_6);                 // scope 2 at $DIR/separate_const_switch.rs:29:9: 29:10
  91         StorageDead(_5);                 // scope 0 at $DIR/separate_const_switch.rs:29:9: 29:10
  92         StorageDead(_2);                 // scope 0 at $DIR/separate_const_switch.rs:29:10: 29:11
  93         StorageDead(_3);                 // scope 0 at $DIR/separate_const_switch.rs:30:1: 30:2
  94         return;                          // scope 0 at $DIR/separate_const_switch.rs:30:2: 30:2
  95     }
  96
  97     bb2: {
  98         unreachable;                     // scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
  99     }
 100
 101     bb3: {
 102         StorageLive(_9);                 // scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
 103         _9 = move ((_4 as Ok).0: i32);   // scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
 104         StorageLive(_10);                // scope 6 at $DIR/separate_const_switch.rs:29:8: 29:10
 105         _10 = move _9;                   // scope 6 at $DIR/separate_const_switch.rs:29:8: 29:10
 106         ((_3 as Continue).0: i32) = move _10; // scope 6 at $DIR/separate_const_switch.rs:29:8: 29:10
 107         discriminant(_3) = 0;            // scope 6 at $DIR/separate_const_switch.rs:29:8: 29:10
 108         StorageDead(_10);                // scope 6 at $DIR/separate_const_switch.rs:29:8: 29:10
 109         StorageDead(_9);                 // scope 5 at $DIR/separate_const_switch.rs:29:8: 29:10
 110         StorageDead(_8);                 // scope 0 at $DIR/separate_const_switch.rs:29:8: 29:10
 111         StorageDead(_4);                 // scope 0 at $DIR/separate_const_switch.rs:29:9: 29:10
 112         StorageLive(_7);                 // scope 0 at $DIR/separate_const_switch.rs:29:8: 29:10
 113         _7 = ((_3 as Continue).0: i32);  // scope 0 at $DIR/separate_const_switch.rs:29:8: 29:10
 114         _2 = _7;                         // scope 4 at $DIR/separate_const_switch.rs:29:8: 29:10
 115         StorageDead(_7);                 // scope 0 at $DIR/separate_const_switch.rs:29:9: 29:10
 116         ((_0 as Ok).0: i32) = move _2;   // scope 0 at $DIR/separate_const_switch.rs:29:5: 29:11
 117         discriminant(_0) = 0;            // scope 0 at $DIR/separate_const_switch.rs:29:5: 29:11
 118         StorageDead(_2);                 // scope 0 at $DIR/separate_const_switch.rs:29:10: 29:11
 119         StorageDead(_3);                 // scope 0 at $DIR/separate_const_switch.rs:30:1: 30:2
 120         return;                          // scope 0 at $DIR/separate_const_switch.rs:30:2: 30:2
 121     }
 122 }