- // MIR for `FOO` before PromoteTemps
+ // MIR for `FOO` after PromoteTemps
  
  static mut FOO: *const &i32 = {
      let mut _0: *const &i32;             // return place in scope 0 at $DIR/const-promotion-extern-static.rs:13:17: 13:28
      let mut _1: &[&i32];                 // in scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
      let mut _2: &[&i32; 1];              // in scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
      let _3: [&i32; 1];                   // in scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
      let mut _4: &i32;                    // in scope 0 at $DIR/const-promotion-extern-static.rs:13:32: 13:45
      let _5: &i32;                        // in scope 0 at $DIR/const-promotion-extern-static.rs:13:42: 13:43
+     let mut _6: &[&i32; 1];              // in scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
      scope 1 {
      }
  
      bb0: {
          StorageLive(_1);                 // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
          StorageLive(_2);                 // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
-         StorageLive(_3);                 // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
-         StorageLive(_4);                 // scope 0 at $DIR/const-promotion-extern-static.rs:13:32: 13:45
-         StorageLive(_5);                 // scope 1 at $DIR/const-promotion-extern-static.rs:13:42: 13:43
-         _5 = const {alloc2: &i32};       // scope 1 at $DIR/const-promotion-extern-static.rs:13:42: 13:43
+         _6 = const FOO::promoted[0];     // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
                                           // ty::Const
-                                          // + ty: &i32
-                                          // + val: Value(Scalar(alloc2))
+                                          // + ty: &[&i32; 1]
+                                          // + val: Unevaluated(WithOptConstParam { did: DefId(0:7 ~ const_promotion_extern_static[317d]::FOO[0]), const_param_did: None }, [], Some(promoted[0]))
                                           // mir::Constant
-                                          // + span: $DIR/const-promotion-extern-static.rs:13:42: 13:43
-                                          // + literal: Const { ty: &i32, val: Value(Scalar(alloc2)) }
-         _4 = &(*_5);                     // scope 1 at $DIR/const-promotion-extern-static.rs:13:41: 13:43
-         _3 = [move _4];                  // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
-         _2 = &_3;                        // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
+                                          // + span: $DIR/const-promotion-extern-static.rs:13:31: 13:46
+                                          // + literal: Const { ty: &[&i32; 1], val: Unevaluated(WithOptConstParam { did: DefId(0:7 ~ const_promotion_extern_static[317d]::FOO[0]), const_param_did: None }, [], Some(promoted[0])) }
+         _2 = &(*_6);                     // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
          _1 = move _2 as &[&i32] (Pointer(Unsize)); // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:46
          _0 = const core::slice::<impl [&i32]>::as_ptr(move _1) -> [return: bb2, unwind: bb1]; // scope 0 at $DIR/const-promotion-extern-static.rs:13:31: 13:55
                                           // ty::Const
                                           // + ty: for<'r> fn(&'r [&i32]) -> *const &i32 {core::slice::<impl [&i32]>::as_ptr}
                                           // + val: Value(Scalar(<ZST>))
                                           // mir::Constant
                                           // + span: $DIR/const-promotion-extern-static.rs:13:47: 13:53
                                           // + literal: Const { ty: for<'r> fn(&'r [&i32]) -> *const &i32 {core::slice::<impl [&i32]>::as_ptr}, val: Value(Scalar(<ZST>)) }
      }
  
      bb1 (cleanup): {
          resume;                          // scope 0 at $DIR/const-promotion-extern-static.rs:13:1: 13:56
      }
  
      bb2: {
-         StorageDead(_5);                 // scope 0 at $DIR/const-promotion-extern-static.rs:13:54: 13:55
-         StorageDead(_3);                 // scope 0 at $DIR/const-promotion-extern-static.rs:13:54: 13:55
          return;                          // scope 0 at $DIR/const-promotion-extern-static.rs:13:1: 13:56
      }
  }
- 
- alloc2 (extern static: X)