1 // MIR for `main` before ElaborateDrops
4 let mut _0: (); // return place in scope 0 at $DIR/box_expr.rs:+0:11: +0:11
5 let _1: std::boxed::Box<S>; // in scope 0 at $DIR/box_expr.rs:+1:9: +1:10
6 let mut _2: usize; // in scope 0 at $DIR/box_expr.rs:+1:13: +1:25
7 let mut _3: usize; // in scope 0 at $DIR/box_expr.rs:+1:13: +1:25
8 let mut _4: *mut u8; // in scope 0 at $DIR/box_expr.rs:+1:13: +1:25
9 let mut _5: std::boxed::Box<S>; // in scope 0 at $DIR/box_expr.rs:+1:13: +1:25
10 let _6: (); // in scope 0 at $DIR/box_expr.rs:+2:5: +2:12
11 let mut _7: std::boxed::Box<S>; // in scope 0 at $DIR/box_expr.rs:+2:10: +2:11
13 debug x => _1; // in scope 1 at $DIR/box_expr.rs:+1:9: +1:10
19 StorageLive(_1); // scope 0 at $DIR/box_expr.rs:+1:9: +1:10
20 _2 = SizeOf(S); // scope 2 at $DIR/box_expr.rs:+1:13: +1:25
21 _3 = AlignOf(S); // scope 2 at $DIR/box_expr.rs:+1:13: +1:25
22 _4 = alloc::alloc::exchange_malloc(move _2, move _3) -> bb1; // scope 2 at $DIR/box_expr.rs:+1:13: +1:25
24 // + span: $DIR/box_expr.rs:7:13: 7:25
25 // + literal: Const { ty: unsafe fn(usize, usize) -> *mut u8 {alloc::alloc::exchange_malloc}, val: Value(<ZST>) }
29 StorageLive(_5); // scope 0 at $DIR/box_expr.rs:+1:13: +1:25
30 _5 = ShallowInitBox(move _4, S); // scope 0 at $DIR/box_expr.rs:+1:13: +1:25
31 (*_5) = S::new() -> [return: bb2, unwind: bb8]; // scope 0 at $DIR/box_expr.rs:+1:17: +1:25
33 // + span: $DIR/box_expr.rs:7:17: 7:23
34 // + literal: Const { ty: fn() -> S {S::new}, val: Value(<ZST>) }
38 _1 = move _5; // scope 0 at $DIR/box_expr.rs:+1:13: +1:25
39 drop(_5) -> bb3; // scope 0 at $DIR/box_expr.rs:+1:24: +1:25
43 StorageDead(_5); // scope 0 at $DIR/box_expr.rs:+1:24: +1:25
44 StorageLive(_6); // scope 1 at $DIR/box_expr.rs:+2:5: +2:12
45 StorageLive(_7); // scope 1 at $DIR/box_expr.rs:+2:10: +2:11
46 _7 = move _1; // scope 1 at $DIR/box_expr.rs:+2:10: +2:11
47 _6 = std::mem::drop::<Box<S>>(move _7) -> [return: bb4, unwind: bb6]; // scope 1 at $DIR/box_expr.rs:+2:5: +2:12
49 // + span: $DIR/box_expr.rs:8:5: 8:9
50 // + literal: Const { ty: fn(Box<S>) {std::mem::drop::<Box<S>>}, val: Value(<ZST>) }
54 StorageDead(_7); // scope 1 at $DIR/box_expr.rs:+2:11: +2:12
55 StorageDead(_6); // scope 1 at $DIR/box_expr.rs:+2:12: +2:13
56 _0 = const (); // scope 0 at $DIR/box_expr.rs:+0:11: +3:2
57 drop(_1) -> bb5; // scope 0 at $DIR/box_expr.rs:+3:1: +3:2
61 StorageDead(_1); // scope 0 at $DIR/box_expr.rs:+3:1: +3:2
62 return; // scope 0 at $DIR/box_expr.rs:+3:2: +3:2
66 drop(_7) -> bb7; // scope 1 at $DIR/box_expr.rs:+2:11: +2:12
70 drop(_1) -> bb9; // scope 0 at $DIR/box_expr.rs:+3:1: +3:2
74 drop(_5) -> bb9; // scope 0 at $DIR/box_expr.rs:+1:24: +1:25
78 resume; // scope 0 at $DIR/box_expr.rs:+0:1: +3:2