- // MIR for `main` before ConstProp
+ // MIR for `main` after ConstProp
  
  fn main() -> () {
      let mut _0: ();                      // return place in scope 0 at $DIR/issue-67019.rs:10:11: 10:11
      let _1: ();                          // in scope 0 at $DIR/issue-67019.rs:11:5: 11:20
      let mut _2: ((u8, u8),);             // in scope 0 at $DIR/issue-67019.rs:11:10: 11:19
      let mut _3: (u8, u8);                // in scope 0 at $DIR/issue-67019.rs:11:11: 11:17
  
      bb0: {
          StorageLive(_1);                 // scope 0 at $DIR/issue-67019.rs:11:5: 11:20
          StorageLive(_2);                 // scope 0 at $DIR/issue-67019.rs:11:10: 11:19
          StorageLive(_3);                 // scope 0 at $DIR/issue-67019.rs:11:11: 11:17
          (_3.0: u8) = const 1_u8;         // scope 0 at $DIR/issue-67019.rs:11:11: 11:17
          (_3.1: u8) = const 2_u8;         // scope 0 at $DIR/issue-67019.rs:11:11: 11:17
-         (_2.0: (u8, u8)) = move _3;      // scope 0 at $DIR/issue-67019.rs:11:10: 11:19
+         (_2.0: (u8, u8)) = const (1_u8, 2_u8); // scope 0 at $DIR/issue-67019.rs:11:10: 11:19
          StorageDead(_3);                 // scope 0 at $DIR/issue-67019.rs:11:18: 11:19
          _1 = test(move _2) -> bb1;       // scope 0 at $DIR/issue-67019.rs:11:5: 11:20
                                           // mir::Constant
                                           // + span: $DIR/issue-67019.rs:11:5: 11:9
                                           // + literal: Const { ty: fn(((u8, u8),)) {test}, val: Value(Scalar(<ZST>)) }
      }
  
      bb1: {
          StorageDead(_2);                 // scope 0 at $DIR/issue-67019.rs:11:19: 11:20
          StorageDead(_1);                 // scope 0 at $DIR/issue-67019.rs:11:20: 11:21
          nop;                             // scope 0 at $DIR/issue-67019.rs:10:11: 12:2
          return;                          // scope 0 at $DIR/issue-67019.rs:12:2: 12:2
      }
  }