tests/mir-opt/matches_reduce_branches.match_option.MatchBranchSimplification.diff

- // MIR for `match_option` before MatchBranchSimplification
+ // MIR for `match_option` after MatchBranchSimplification
  
  fn match_option(_1: &Option<i32>) -> Option<i32> {
      debug i => _1;
      let mut _0: std::option::Option<i32>;
      let mut _2: isize;
  
      bb0: {
          _2 = discriminant((*_1));
-         switchInt(move _2) -> [0: bb2, 1: bb3, otherwise: bb1];
-     }
- 
-     bb1: {
-         unreachable;
-     }
- 
-     bb2: {
-         _0 = Option::<i32>::None;
-         goto -> bb4;
-     }
- 
-     bb3: {
-         _0 = copy (*_1);
-         goto -> bb4;
-     }
- 
-     bb4: {
+         _0 = no_retag copy (*_1);
          return;
      }
  }