- // MIR for `unchecked` before LowerIntrinsics
+ // MIR for `unchecked` after LowerIntrinsics
  
  fn unchecked(_1: i32, _2: i32) -> () {
      debug a => _1;
      debug b => _2;
      let mut _0: ();
      let _3: i32;
      let mut _4: i32;
      let mut _5: i32;
      let mut _7: i32;
      let mut _8: i32;
      let mut _10: i32;
      let mut _11: i32;
      let mut _13: i32;
      let mut _14: i32;
      let mut _16: i32;
      let mut _17: i32;
      let mut _19: i32;
      let mut _20: i32;
      let mut _22: i32;
      let mut _23: i32;
      scope 1 {
          debug _a => _3;
          let _6: i32;
          scope 2 {
              debug _b => _6;
              let _9: i32;
              scope 3 {
                  debug _c => _9;
                  let _12: i32;
                  scope 4 {
                      debug _x => _12;
                      let _15: i32;
                      scope 5 {
                          debug _y => _15;
                          let _18: i32;
                          scope 6 {
                              debug _i => _18;
                              let _21: i32;
                              scope 7 {
                                  debug _j => _21;
                              }
                          }
                      }
                  }
              }
          }
      }
  
      bb0: {
          StorageLive(_3);
          StorageLive(_4);
          _4 = _1;
          StorageLive(_5);
          _5 = _2;
-         _3 = unchecked_add::<i32>(move _4, move _5) -> [return: bb1, unwind unreachable];
+         _3 = AddUnchecked(move _4, move _5);
+         goto -> bb1;
      }
  
      bb1: {
          StorageDead(_5);
          StorageDead(_4);
          StorageLive(_6);
          StorageLive(_7);
          _7 = _1;
          StorageLive(_8);
          _8 = _2;
-         _6 = unchecked_sub::<i32>(move _7, move _8) -> [return: bb2, unwind unreachable];
+         _6 = SubUnchecked(move _7, move _8);
+         goto -> bb2;
      }
  
      bb2: {
          StorageDead(_8);
          StorageDead(_7);
          StorageLive(_9);
          StorageLive(_10);
          _10 = _1;
          StorageLive(_11);
          _11 = _2;
-         _9 = unchecked_mul::<i32>(move _10, move _11) -> [return: bb3, unwind unreachable];
+         _9 = MulUnchecked(move _10, move _11);
+         goto -> bb3;
      }
  
      bb3: {
          StorageDead(_11);
          StorageDead(_10);
          StorageLive(_12);
          StorageLive(_13);
          _13 = _1;
          StorageLive(_14);
          _14 = _2;
-         _12 = unchecked_div::<i32>(move _13, move _14) -> [return: bb4, unwind unreachable];
+         _12 = Div(move _13, move _14);
+         goto -> bb4;
      }
  
      bb4: {
          StorageDead(_14);
          StorageDead(_13);
          StorageLive(_15);
          StorageLive(_16);
          _16 = _1;
          StorageLive(_17);
          _17 = _2;
-         _15 = unchecked_rem::<i32>(move _16, move _17) -> [return: bb5, unwind unreachable];
+         _15 = Rem(move _16, move _17);
+         goto -> bb5;
      }
  
      bb5: {
          StorageDead(_17);
          StorageDead(_16);
          StorageLive(_18);
          StorageLive(_19);
          _19 = _1;
          StorageLive(_20);
          _20 = _2;
-         _18 = unchecked_shl::<i32>(move _19, move _20) -> [return: bb6, unwind unreachable];
+         _18 = ShlUnchecked(move _19, move _20);
+         goto -> bb6;
      }
  
      bb6: {
          StorageDead(_20);
          StorageDead(_19);
          StorageLive(_21);
          StorageLive(_22);
          _22 = _1;
          StorageLive(_23);
          _23 = _2;
-         _21 = unchecked_shr::<i32>(move _22, move _23) -> [return: bb7, unwind unreachable];
+         _21 = ShrUnchecked(move _22, move _23);
+         goto -> bb7;
      }
  
      bb7: {
          StorageDead(_23);
          StorageDead(_22);
          _0 = const ();
          StorageDead(_21);
          StorageDead(_18);
          StorageDead(_15);
          StorageDead(_12);
          StorageDead(_9);
          StorageDead(_6);
          StorageDead(_3);
          return;
      }
  }