rust/src/test/mir-opt/matches_u8.exhaustive_match.MatchBranchSimplification.64bit.diff at 1ad305e66ce5aaeedd8480bf8b760c8314c3ab15 · tmiasko/rust · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
- // MIR for `exhaustive_match` before MatchBranchSimplification
+ // MIR for `exhaustive_match` after MatchBranchSimplification

  fn exhaustive_match(_1: E) -> u8 {
      debug e => _1;                       // in scope 0 at $DIR/matches_u8.rs:11:25: 11:26
      let mut _0: u8;                      // return place in scope 0 at $DIR/matches_u8.rs:11:34: 11:36
      let mut _2: isize;                   // in scope 0 at $DIR/matches_u8.rs:13:9: 13:13

      bb0: {
          _2 = discriminant(_1);           // scope 0 at $DIR/matches_u8.rs:13:9: 13:13
          switchInt(move _2) -> [0_isize: bb3, 1_isize: bb1, otherwise: bb2]; // scope 0 at $DIR/matches_u8.rs:13:9: 13:13
      }

      bb1: {
          _0 = const 1_u8;                 // scope 0 at $DIR/matches_u8.rs:14:17: 14:18
          goto -> bb4;                     // scope 0 at $DIR/matches_u8.rs:12:5: 15:6
      }

      bb2: {
          unreachable;                     // scope 0 at $DIR/matches_u8.rs:12:11: 12:12
      }

      bb3: {
          _0 = const 0_u8;                 // scope 0 at $DIR/matches_u8.rs:13:17: 13:18
          goto -> bb4;                     // scope 0 at $DIR/matches_u8.rs:12:5: 15:6
      }

      bb4: {
          return;                          // scope 0 at $DIR/matches_u8.rs:16:2: 16:2
      }
  }