- // MIR for `my_is_some` before MatchBranchSimplification
+ // MIR for `my_is_some` after MatchBranchSimplification
  
  fn my_is_some(_1: Option<()>) -> bool {
      debug bar => _1;
      let mut _0: bool;
      let mut _2: isize;
+     let mut _3: isize;
  
      bb0: {
          _2 = discriminant(_1);
-         switchInt(move _2) -> [0: bb2, 1: bb3, otherwise: bb1];
-     }
- 
-     bb1: {
-         unreachable;
-     }
- 
-     bb2: {
-         _0 = const false;
-         goto -> bb4;
-     }
- 
-     bb3: {
-         _0 = const true;
-         goto -> bb4;
-     }
- 
-     bb4: {
+         StorageLive(_3);
+         _3 = move _2;
+         _0 = Ne(copy _3, const 0_isize);
+         StorageDead(_3);
          return;
      }
  }