| - // MIR for `main` before ConstProp |
| + // MIR for `main` after ConstProp |
| |
| fn main() -> () { |
| let mut _0: (); |
| let _1: A; |
| let mut _2: std::boxed::Box<[bool]>; |
| scope 1 { |
| debug a => _1; |
| } |
| scope 2 (inlined <Box<[bool]> as Default>::default) { |
| let _3: std::ptr::Unique<[bool]>; |
| let mut _4: std::ptr::Unique<[bool; 0]>; |
| scope 3 { |
| debug ptr => _3; |
| } |
| scope 4 (inlined Unique::<[bool; 0]>::dangling) { |
| let mut _5: std::ptr::NonNull<[bool; 0]>; |
| scope 5 (inlined NonNull::<[bool; 0]>::dangling) { |
| let mut _7: usize; |
| scope 6 { |
| let _6: *mut [bool; 0]; |
| scope 7 { |
| debug ptr => _6; |
| scope 11 (inlined NonNull::<[bool; 0]>::new_unchecked) { |
| debug ptr => _6; |
| let mut _8: *const [bool; 0]; |
| scope 12 { |
| scope 13 (inlined NonNull::<T>::new_unchecked::runtime::<[bool; 0]>) { |
| debug ptr => _6; |
| scope 14 (inlined std::ptr::mut_ptr::<impl *mut [bool; 0]>::is_null) { |
| debug self => _6; |
| let mut _9: *mut u8; |
| scope 15 { |
| scope 16 (inlined std::ptr::mut_ptr::<impl *mut T>::is_null::runtime_impl) { |
| debug ptr => _9; |
| scope 17 (inlined std::ptr::mut_ptr::<impl *mut u8>::addr) { |
| debug self => _9; |
| scope 18 { |
| scope 19 (inlined std::ptr::mut_ptr::<impl *mut u8>::cast::<()>) { |
| debug self => _9; |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| scope 8 (inlined align_of::<[bool; 0]>) { |
| } |
| scope 9 (inlined invalid_mut::<[bool; 0]>) { |
| debug addr => _7; |
| scope 10 { |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| bb0: { |
| StorageLive(_1); |
| StorageLive(_2); |
| StorageLive(_3); |
| StorageLive(_4); |
| StorageLive(_5); |
| StorageLive(_6); |
| StorageLive(_7); |
| - _7 = AlignOf([bool; 0]); |
| - _6 = _7 as *mut [bool; 0] (Transmute); |
| + _7 = const 1_usize; |
| + _6 = const {0x1 as *mut [bool; 0]}; |
| StorageDead(_7); |
| StorageLive(_8); |
| StorageLive(_9); |
| - _8 = _6 as *const [bool; 0] (PointerCoercion(MutToConstPointer)); |
| - _5 = NonNull::<[bool; 0]> { pointer: _8 }; |
| + _8 = const {0x1 as *const [bool; 0]}; |
| + _5 = const NonNull::<[bool; 0]> {{ pointer: {0x1 as *const [bool; 0]} }}; |
| StorageDead(_9); |
| StorageDead(_8); |
| StorageDead(_6); |
| - _4 = Unique::<[bool; 0]> { pointer: move _5, _marker: const PhantomData::<[bool; 0]> }; |
| + _4 = const Unique::<[bool; 0]> {{ pointer: NonNull::<[bool; 0]> {{ pointer: {0x1 as *const [bool; 0]} }}, _marker: PhantomData::<[bool; 0]> }}; |
| StorageDead(_5); |
| - _3 = move _4 as std::ptr::Unique<[bool]> (PointerCoercion(Unsize)); |
| + _3 = const Unique::<[bool]> {{ pointer: NonNull::<[bool]> {{ pointer: Indirect { alloc_id: ALLOC0, offset: Size(0 bytes) }: *const [bool] }}, _marker: PhantomData::<[bool]> }}; |
| StorageDead(_4); |
| - _2 = Box::<[bool]>(_3, const std::alloc::Global); |
| + _2 = const Box::<[bool]>(Unique::<[bool]> {{ pointer: NonNull::<[bool]> {{ pointer: Indirect { alloc_id: ALLOC1, offset: Size(0 bytes) }: *const [bool] }}, _marker: PhantomData::<[bool]> }}, std::alloc::Global); |
| StorageDead(_3); |
| - _1 = A { foo: move _2 }; |
| + _1 = A { foo: const Box::<[bool]>(Unique::<[bool]> {{ pointer: NonNull::<[bool]> {{ pointer: Indirect { alloc_id: ALLOC2, offset: Size(0 bytes) }: *const [bool] }}, _marker: PhantomData::<[bool]> }}, std::alloc::Global) }; |
| StorageDead(_2); |
| _0 = const (); |
| drop(_1) -> [return: bb1, unwind: bb2]; |
| } |
| |
| bb1: { |
| StorageDead(_1); |
| return; |
| } |
| |
| bb2 (cleanup): { |
| resume; |
| } |
| + } |
| + |
| + ALLOC2 (size: 8, align: 4) { |
| + 01 00 00 00 00 00 00 00 │ ........ |
| + } |
| + |
| + ALLOC1 (size: 8, align: 4) { |
| + 01 00 00 00 00 00 00 00 │ ........ |
| + } |
| + |
| + ALLOC0 (size: 8, align: 4) { |
| + 01 00 00 00 00 00 00 00 │ ........ |
| } |
| |