- // MIR for `main` before ConstProp
+ // MIR for `main` after ConstProp
  
  fn main() -> () {
      let mut _0: ();                      // return place in scope 0 at $DIR/tuple_literal_propagation.rs:+0:11: +0:11
      let _1: (u32, u32);                  // in scope 0 at $DIR/tuple_literal_propagation.rs:+1:9: +1:10
      let _2: ();                          // in scope 0 at $DIR/tuple_literal_propagation.rs:+3:5: +3:15
      let mut _3: (u32, u32);              // in scope 0 at $DIR/tuple_literal_propagation.rs:+3:13: +3:14
      scope 1 {
          debug x => _1;                   // in scope 1 at $DIR/tuple_literal_propagation.rs:+1:9: +1:10
      }
  
      bb0: {
          StorageLive(_1);                 // scope 0 at $DIR/tuple_literal_propagation.rs:+1:9: +1:10
          Deinit(_1);                      // scope 0 at $DIR/tuple_literal_propagation.rs:+1:13: +1:19
          (_1.0: u32) = const 1_u32;       // scope 0 at $DIR/tuple_literal_propagation.rs:+1:13: +1:19
          (_1.1: u32) = const 2_u32;       // scope 0 at $DIR/tuple_literal_propagation.rs:+1:13: +1:19
          StorageLive(_2);                 // scope 1 at $DIR/tuple_literal_propagation.rs:+3:5: +3:15
          StorageLive(_3);                 // scope 1 at $DIR/tuple_literal_propagation.rs:+3:13: +3:14
-         _3 = _1;                         // scope 1 at $DIR/tuple_literal_propagation.rs:+3:13: +3:14
+         _3 = const (1_u32, 2_u32);       // scope 1 at $DIR/tuple_literal_propagation.rs:+3:13: +3:14
          _2 = consume(move _3) -> bb1;    // scope 1 at $DIR/tuple_literal_propagation.rs:+3:5: +3:15
                                           // mir::Constant
                                           // + span: $DIR/tuple_literal_propagation.rs:5:5: 5:12
                                           // + literal: Const { ty: fn((u32, u32)) {consume}, val: Value(<ZST>) }
      }
  
      bb1: {
          StorageDead(_3);                 // scope 1 at $DIR/tuple_literal_propagation.rs:+3:14: +3:15
          StorageDead(_2);                 // scope 1 at $DIR/tuple_literal_propagation.rs:+3:15: +3:16
          StorageDead(_1);                 // scope 0 at $DIR/tuple_literal_propagation.rs:+4:1: +4:2
          return;                          // scope 0 at $DIR/tuple_literal_propagation.rs:+4:2: +4:2
      }
  }