- // MIR for `wide_ptr_same_provenance` before GVN
+ // MIR for `wide_ptr_same_provenance` after GVN
  
  fn wide_ptr_same_provenance() -> () {
      let mut _0: ();
      let _1: &[i32; 2];
      let _2: [i32; 2];
      let mut _4: *const dyn std::marker::Send;
      let _5: &dyn std::marker::Send;
      let mut _6: &i32;
      let _7: &i32;
      let _8: usize;
      let mut _9: usize;
      let mut _10: bool;
      let mut _12: *const dyn std::marker::Send;
      let _13: &dyn std::marker::Send;
      let mut _14: &i32;
      let _15: &i32;
      let _16: usize;
      let mut _17: usize;
      let mut _18: bool;
      let _19: ();
      let mut _20: bool;
      let mut _21: *const dyn std::marker::Send;
      let mut _22: *const dyn std::marker::Send;
      let mut _23: *const dyn std::marker::Send;
      let _24: ();
      let mut _25: bool;
      let mut _26: *const dyn std::marker::Send;
      let mut _27: *const dyn std::marker::Send;
      let mut _28: *const dyn std::marker::Send;
      let _29: ();
      let mut _30: bool;
      let mut _31: *const dyn std::marker::Send;
      let mut _32: *const dyn std::marker::Send;
      let mut _33: *const dyn std::marker::Send;
      let _34: ();
      let mut _35: bool;
      let mut _36: *const dyn std::marker::Send;
      let mut _37: *const dyn std::marker::Send;
      let mut _38: *const dyn std::marker::Send;
      let _39: ();
      let mut _40: bool;
      let mut _41: *const dyn std::marker::Send;
      let mut _42: *const dyn std::marker::Send;
      let mut _43: *const dyn std::marker::Send;
      let _44: ();
      let mut _45: bool;
      let mut _46: *const dyn std::marker::Send;
      let mut _47: *const dyn std::marker::Send;
      let mut _48: *const dyn std::marker::Send;
      let mut _49: &[i32; 2];
      scope 1 {
          debug slice => _1;
          let _3: *const dyn std::marker::Send;
          scope 2 {
              debug a => _3;
              let _11: *const dyn std::marker::Send;
              scope 3 {
                  debug b => _11;
              }
          }
      }
  
      bb0: {
          StorageLive(_1);
          _49 = const wide_ptr_same_provenance::promoted[0];
          _1 = &(*_49);
          StorageLive(_3);
-         StorageLive(_4);
+         nop;
          StorageLive(_5);
          StorageLive(_6);
          StorageLive(_7);
          StorageLive(_8);
          _8 = const 0_usize;
-         _9 = Len((*_1));
-         _10 = Lt(copy _8, copy _9);
-         assert(move _10, "index out of bounds: the length is {} but the index is {}", move _9, copy _8) -> [success: bb1, unwind unreachable];
+         _9 = const 2_usize;
+         _10 = const true;
+         assert(const true, "index out of bounds: the length is {} but the index is {}", const 2_usize, const 0_usize) -> [success: bb1, unwind unreachable];
      }
  
      bb1: {
-         _7 = &(*_1)[_8];
+         _7 = &(*_1)[0 of 1];
          _6 = &(*_7);
          _5 = move _6 as &dyn std::marker::Send (PointerCoercion(Unsize, AsCast));
          StorageDead(_6);
          _4 = &raw const (*_5);
-         _3 = move _4 as *const dyn std::marker::Send (PointerCoercion(Unsize, Implicit));
-         StorageDead(_4);
+         _3 = copy _4;
+         nop;
          StorageDead(_7);
          StorageDead(_5);
          StorageLive(_11);
-         StorageLive(_12);
+         nop;
          StorageLive(_13);
          StorageLive(_14);
          StorageLive(_15);
          StorageLive(_16);
          _16 = const 1_usize;
-         _17 = Len((*_1));
-         _18 = Lt(copy _16, copy _17);
-         assert(move _18, "index out of bounds: the length is {} but the index is {}", move _17, copy _16) -> [success: bb2, unwind unreachable];
+         _17 = const 2_usize;
+         _18 = const true;
+         assert(const true, "index out of bounds: the length is {} but the index is {}", const 2_usize, const 1_usize) -> [success: bb2, unwind unreachable];
      }
  
      bb2: {
-         _15 = &(*_1)[_16];
+         _15 = &(*_1)[1 of 2];
          _14 = &(*_15);
          _13 = move _14 as &dyn std::marker::Send (PointerCoercion(Unsize, AsCast));
          StorageDead(_14);
          _12 = &raw const (*_13);
-         _11 = move _12 as *const dyn std::marker::Send (PointerCoercion(Unsize, Implicit));
-         StorageDead(_12);
+         _11 = copy _12;
+         nop;
          StorageDead(_15);
          StorageDead(_13);
          StorageLive(_19);
          StorageLive(_20);
          StorageLive(_21);
-         _21 = copy _3;
+         _21 = copy _4;
          StorageLive(_22);
          StorageLive(_23);
-         _23 = copy _11;
-         _22 = move _23 as *const dyn std::marker::Send (PointerCoercion(Unsize, Implicit));
+         _23 = copy _12;
+         _22 = copy _12;
          StorageDead(_23);
-         _20 = Eq(move _21, move _22);
+         _20 = Eq(copy _4, copy _12);
          StorageDead(_22);
          StorageDead(_21);
          _19 = opaque::<bool>(move _20) -> [return: bb3, unwind unreachable];
      }
  
      bb3: {
          StorageDead(_20);
          StorageDead(_19);
          StorageLive(_24);
          StorageLive(_25);
          StorageLive(_26);
-         _26 = copy _3;
+         _26 = copy _4;
          StorageLive(_27);
          StorageLive(_28);
-         _28 = copy _11;
-         _27 = move _28 as *const dyn std::marker::Send (PointerCoercion(Unsize, Implicit));
+         _28 = copy _12;
+         _27 = copy _12;
          StorageDead(_28);
-         _25 = Ne(move _26, move _27);
+         _25 = Ne(copy _4, copy _12);
          StorageDead(_27);
          StorageDead(_26);
          _24 = opaque::<bool>(move _25) -> [return: bb4, unwind unreachable];
      }
  
      bb4: {
          StorageDead(_25);
          StorageDead(_24);
          StorageLive(_29);
          StorageLive(_30);
          StorageLive(_31);
-         _31 = copy _3;
+         _31 = copy _4;
          StorageLive(_32);
          StorageLive(_33);
-         _33 = copy _11;
-         _32 = move _33 as *const dyn std::marker::Send (PointerCoercion(Unsize, Implicit));
+         _33 = copy _12;
+         _32 = copy _12;
          StorageDead(_33);
-         _30 = Lt(move _31, move _32);
+         _30 = Lt(copy _4, copy _12);
          StorageDead(_32);
          StorageDead(_31);
          _29 = opaque::<bool>(move _30) -> [return: bb5, unwind unreachable];
      }
  
      bb5: {
          StorageDead(_30);
          StorageDead(_29);
          StorageLive(_34);
          StorageLive(_35);
          StorageLive(_36);
-         _36 = copy _3;
+         _36 = copy _4;
          StorageLive(_37);
          StorageLive(_38);
-         _38 = copy _11;
-         _37 = move _38 as *const dyn std::marker::Send (PointerCoercion(Unsize, Implicit));
+         _38 = copy _12;
+         _37 = copy _12;
          StorageDead(_38);
-         _35 = Le(move _36, move _37);
+         _35 = Le(copy _4, copy _12);
          StorageDead(_37);
          StorageDead(_36);
          _34 = opaque::<bool>(move _35) -> [return: bb6, unwind unreachable];
      }
  
      bb6: {
          StorageDead(_35);
          StorageDead(_34);
          StorageLive(_39);
          StorageLive(_40);
          StorageLive(_41);
-         _41 = copy _3;
+         _41 = copy _4;
          StorageLive(_42);
          StorageLive(_43);
-         _43 = copy _11;
-         _42 = move _43 as *const dyn std::marker::Send (PointerCoercion(Unsize, Implicit));
+         _43 = copy _12;
+         _42 = copy _12;
          StorageDead(_43);
-         _40 = Gt(move _41, move _42);
+         _40 = Gt(copy _4, copy _12);
          StorageDead(_42);
          StorageDead(_41);
          _39 = opaque::<bool>(move _40) -> [return: bb7, unwind unreachable];
      }
  
      bb7: {
          StorageDead(_40);
          StorageDead(_39);
          StorageLive(_44);
          StorageLive(_45);
          StorageLive(_46);
-         _46 = copy _3;
+         _46 = copy _4;
          StorageLive(_47);
          StorageLive(_48);
-         _48 = copy _11;
-         _47 = move _48 as *const dyn std::marker::Send (PointerCoercion(Unsize, Implicit));
+         _48 = copy _12;
+         _47 = copy _12;
          StorageDead(_48);
-         _45 = Ge(move _46, move _47);
+         _45 = Ge(copy _4, copy _12);
          StorageDead(_47);
          StorageDead(_46);
          _44 = opaque::<bool>(move _45) -> [return: bb8, unwind unreachable];
      }
  
      bb8: {
          StorageDead(_45);
          StorageDead(_44);
          _0 = const ();
          StorageDead(_16);
          StorageDead(_11);
          StorageDead(_8);
          StorageDead(_3);
          StorageDead(_1);
          return;
      }
  }