tests/mir-opt/matches_reduce_branches.match_u8_i8_2.MatchBranchSimplification.diff

- // MIR for `match_u8_i8_2` before MatchBranchSimplification
+ // MIR for `match_u8_i8_2` after MatchBranchSimplification
  
  fn match_u8_i8_2(_1: EnumAu8) -> (i8, i8) {
      debug i => _1;
      let mut _0: (i8, i8);
      let _2: i8;
      let _4: ();
      let mut _5: u8;
      let mut _6: i8;
      let mut _7: i8;
+     let mut _8: u8;
      scope 1 {
          debug a => _2;
          let _3: i8;
          scope 2 {
              debug b => _3;
          }
      }
  
      bb0: {
          StorageLive(_2);
          StorageLive(_3);
          StorageLive(_4);
          _5 = discriminant(_1);
-         switchInt(move _5) -> [0: bb5, 127: bb4, 128: bb3, 255: bb2, otherwise: bb1];
-     }
- 
-     bb1: {
-         unreachable;
-     }
- 
-     bb2: {
-         _2 = const -1_i8;
-         _3 = const -1_i8;
+         StorageLive(_8);
+         _8 = no_retag move _5;
+         _2 = copy _8 as i8 (IntToInt);
+         _3 = copy _8 as i8 (IntToInt);
          _4 = ();
-         goto -> bb6;
-     }
- 
-     bb3: {
-         _2 = const i8::MIN;
-         _3 = const i8::MIN;
-         _4 = ();
-         goto -> bb6;
-     }
- 
-     bb4: {
-         _2 = const i8::MAX;
-         _3 = const i8::MAX;
-         _4 = ();
-         goto -> bb6;
-     }
- 
-     bb5: {
-         _2 = const 0_i8;
-         _3 = const 0_i8;
-         _4 = ();
-         goto -> bb6;
-     }
- 
-     bb6: {
+         StorageDead(_8);
          StorageDead(_4);
          StorageLive(_6);
          _6 = copy _2;
          StorageLive(_7);
          _7 = copy _3;
          _0 = (move _6, move _7);
          StorageDead(_7);
          StorageDead(_6);
          StorageDead(_3);
          StorageDead(_2);
          return;
      }
  }