src/test/mir-opt/try_identity_e2e.old.PreCodegen.after.mir

   1 // MIR for `old` after PreCodegen
   2
   3 fn old(_1: Result<T, E>) -> Result<T, E> {
   4     debug x => _1;                       // in scope 0 at $DIR/try_identity_e2e.rs:+0:14: +0:15
   5     let mut _0: std::result::Result<T, E>; // return place in scope 0 at $DIR/try_identity_e2e.rs:+0:34: +0:46
   6     let mut _2: T;                       // in scope 0 at $DIR/try_identity_e2e.rs:+2:9: +5:10
   7     let mut _3: isize;                   // in scope 0 at $DIR/try_identity_e2e.rs:+3:13: +3:18
   8     let _4: T;                           // in scope 0 at $DIR/try_identity_e2e.rs:+3:16: +3:17
   9     let _5: E;                           // in scope 0 at $DIR/try_identity_e2e.rs:+4:17: +4:18
  10     let mut _6: E;                       // in scope 0 at $DIR/try_identity_e2e.rs:+4:34: +4:35
  11     scope 1 {
  12         debug v => _4;                   // in scope 1 at $DIR/try_identity_e2e.rs:+3:16: +3:17
  13     }
  14     scope 2 {
  15         debug e => _5;                   // in scope 2 at $DIR/try_identity_e2e.rs:+4:17: +4:18
  16     }
  17
  18     bb0: {
  19         StorageLive(_2);                 // scope 0 at $DIR/try_identity_e2e.rs:+2:9: +5:10
  20         _3 = discriminant(_1);           // scope 0 at $DIR/try_identity_e2e.rs:+2:15: +2:16
  21         switchInt(move _3) -> [0_isize: bb3, 1_isize: bb1, otherwise: bb2]; // scope 0 at $DIR/try_identity_e2e.rs:+2:9: +2:16
  22     }
  23
  24     bb1: {
  25         StorageLive(_5);                 // scope 0 at $DIR/try_identity_e2e.rs:+4:17: +4:18
  26         _5 = move ((_1 as Err).0: E);    // scope 0 at $DIR/try_identity_e2e.rs:+4:17: +4:18
  27         StorageLive(_6);                 // scope 2 at $DIR/try_identity_e2e.rs:+4:34: +4:35
  28         _6 = move _5;                    // scope 2 at $DIR/try_identity_e2e.rs:+4:34: +4:35
  29         Deinit(_0);                      // scope 2 at $DIR/try_identity_e2e.rs:+4:30: +4:36
  30         ((_0 as Err).0: E) = move _6;    // scope 2 at $DIR/try_identity_e2e.rs:+4:30: +4:36
  31         discriminant(_0) = 1;            // scope 2 at $DIR/try_identity_e2e.rs:+4:30: +4:36
  32         StorageDead(_6);                 // scope 2 at $DIR/try_identity_e2e.rs:+4:35: +4:36
  33         StorageDead(_5);                 // scope 0 at $DIR/try_identity_e2e.rs:+4:35: +4:36
  34         StorageDead(_2);                 // scope 0 at $DIR/try_identity_e2e.rs:+6:5: +6:6
  35         return;                          // scope 0 at $DIR/try_identity_e2e.rs:+7:1: +7:2
  36     }
  37
  38     bb2: {
  39         unreachable;                     // scope 0 at $DIR/try_identity_e2e.rs:+2:15: +2:16
  40     }
  41
  42     bb3: {
  43         StorageLive(_4);                 // scope 0 at $DIR/try_identity_e2e.rs:+3:16: +3:17
  44         _4 = move ((_1 as Ok).0: T);     // scope 0 at $DIR/try_identity_e2e.rs:+3:16: +3:17
  45         _2 = move _4;                    // scope 1 at $DIR/try_identity_e2e.rs:+3:22: +3:23
  46         StorageDead(_4);                 // scope 0 at $DIR/try_identity_e2e.rs:+3:22: +3:23
  47         Deinit(_0);                      // scope 0 at $DIR/try_identity_e2e.rs:+1:5: +6:6
  48         ((_0 as Ok).0: T) = move _2;     // scope 0 at $DIR/try_identity_e2e.rs:+1:5: +6:6
  49         discriminant(_0) = 0;            // scope 0 at $DIR/try_identity_e2e.rs:+1:5: +6:6
  50         StorageDead(_2);                 // scope 0 at $DIR/try_identity_e2e.rs:+6:5: +6:6
  51         return;                          // scope 0 at $DIR/try_identity_e2e.rs:+7:1: +7:2
  52     }
  53 }