- // MIR for `concrete` before ConstProp
+ // MIR for `concrete` after ConstProp
  
  fn concrete() -> () {
      let mut _0: ();
      let _1: usize;
      let mut _2: usize;
      let mut _4: usize;
      let mut _6: usize;
      let mut _8: usize;
      let mut _10: usize;
      let mut _12: usize;
      let mut _14: usize;
      scope 1 {
          debug x => _1;
          let _3: usize;
          scope 2 {
              debug y => _3;
              let _5: usize;
              scope 3 {
                  debug z0 => _5;
                  let _7: usize;
                  scope 4 {
                      debug z1 => _7;
                      let _9: usize;
                      scope 5 {
                          debug eA0 => _9;
                          let _11: usize;
                          scope 6 {
                              debug eA1 => _11;
                              let _13: usize;
                              scope 7 {
                                  debug eC => _13;
                              }
                          }
                      }
                  }
              }
          }
      }
  
      bb0: {
          StorageLive(_1);
          StorageLive(_2);
-         _2 = OffsetOf(Alpha, [(0, 0)]);
-         _1 = must_use::<usize>(move _2) -> [return: bb1, unwind unreachable];
+         _2 = const 4_usize;
+         _1 = must_use::<usize>(const 4_usize) -> [return: bb1, unwind unreachable];
      }
  
      bb1: {
          StorageDead(_2);
          StorageLive(_3);
          StorageLive(_4);
-         _4 = OffsetOf(Alpha, [(0, 1)]);
-         _3 = must_use::<usize>(move _4) -> [return: bb2, unwind unreachable];
+         _4 = const 0_usize;
+         _3 = must_use::<usize>(const 0_usize) -> [return: bb2, unwind unreachable];
      }
  
      bb2: {
          StorageDead(_4);
          StorageLive(_5);
          StorageLive(_6);
-         _6 = OffsetOf(Alpha, [(0, 2), (0, 0)]);
-         _5 = must_use::<usize>(move _6) -> [return: bb3, unwind unreachable];
+         _6 = const 2_usize;
+         _5 = must_use::<usize>(const 2_usize) -> [return: bb3, unwind unreachable];
      }
  
      bb3: {
          StorageDead(_6);
          StorageLive(_7);
          StorageLive(_8);
-         _8 = OffsetOf(Alpha, [(0, 2), (0, 1)]);
-         _7 = must_use::<usize>(move _8) -> [return: bb4, unwind unreachable];
+         _8 = const 3_usize;
+         _7 = must_use::<usize>(const 3_usize) -> [return: bb4, unwind unreachable];
      }
  
      bb4: {
          StorageDead(_8);
          StorageLive(_9);
          StorageLive(_10);
-         _10 = OffsetOf(Epsilon, [(0, 0)]);
-         _9 = must_use::<usize>(move _10) -> [return: bb5, unwind unreachable];
+         _10 = const 1_usize;
+         _9 = must_use::<usize>(const 1_usize) -> [return: bb5, unwind unreachable];
      }
  
      bb5: {
          StorageDead(_10);
          StorageLive(_11);
          StorageLive(_12);
-         _12 = OffsetOf(Epsilon, [(0, 1)]);
-         _11 = must_use::<usize>(move _12) -> [return: bb6, unwind unreachable];
+         _12 = const 2_usize;
+         _11 = must_use::<usize>(const 2_usize) -> [return: bb6, unwind unreachable];
      }
  
      bb6: {
          StorageDead(_12);
          StorageLive(_13);
          StorageLive(_14);
-         _14 = OffsetOf(Epsilon, [(2, 0)]);
-         _13 = must_use::<usize>(move _14) -> [return: bb7, unwind unreachable];
+         _14 = const 4_usize;
+         _13 = must_use::<usize>(const 4_usize) -> [return: bb7, unwind unreachable];
      }
  
      bb7: {
          StorageDead(_14);
          _0 = const ();
          StorageDead(_13);
          StorageDead(_11);
          StorageDead(_9);
          StorageDead(_7);
          StorageDead(_5);
          StorageDead(_3);
          StorageDead(_1);
          return;
      }
  }