88 lines
3.6 KiB
Diff
88 lines
3.6 KiB
Diff
- // MIR for `main` before GVN
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+ // MIR for `main` after GVN
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fn main() -> () {
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let mut _0: ();
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let _1: A;
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let mut _2: std::boxed::Box<[bool]>;
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scope 1 {
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debug a => _1;
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}
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scope 2 (inlined <Box<[bool]> as Default>::default) {
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let _3: std::ptr::Unique<[bool]>;
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let mut _4: std::ptr::Unique<[bool; 0]>;
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scope 3 {
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}
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scope 4 (inlined Unique::<[bool; 0]>::dangling) {
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let mut _5: std::ptr::NonNull<[bool; 0]>;
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scope 5 (inlined NonNull::<[bool; 0]>::dangling) {
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let mut _6: std::num::NonZero<usize>;
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scope 6 {
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scope 8 (inlined std::ptr::Alignment::as_nonzero) {
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}
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scope 9 (inlined NonNull::<[bool; 0]>::without_provenance) {
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let _7: *const [bool; 0];
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scope 10 {
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}
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scope 11 (inlined NonZero::<usize>::get) {
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}
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scope 12 (inlined std::ptr::without_provenance::<[bool; 0]>) {
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scope 13 (inlined without_provenance_mut::<[bool; 0]>) {
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}
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}
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}
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}
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scope 7 (inlined std::ptr::Alignment::of::<[bool; 0]>) {
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}
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}
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}
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}
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bb0: {
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StorageLive(_1);
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StorageLive(_2);
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StorageLive(_3);
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StorageLive(_4);
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StorageLive(_5);
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StorageLive(_6);
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- _6 = const std::ptr::Alignment::of::<[bool; 0]>::{constant#0} as std::num::NonZero<usize> (Transmute);
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+ _6 = const NonZero::<usize>(core::num::niche_types::NonZeroUsizeInner(1_usize));
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StorageLive(_7);
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- _7 = copy _6 as *const [bool; 0] (Transmute);
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- _5 = NonNull::<[bool; 0]> { pointer: copy _7 };
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+ _7 = const {0x1 as *const [bool; 0]};
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+ _5 = const NonNull::<[bool; 0]> {{ pointer: {0x1 as *const [bool; 0]} }};
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StorageDead(_7);
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StorageDead(_6);
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- _4 = Unique::<[bool; 0]> { pointer: move _5, _marker: const PhantomData::<[bool; 0]> };
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+ _4 = const Unique::<[bool; 0]> {{ pointer: NonNull::<[bool; 0]> {{ pointer: {0x1 as *const [bool; 0]} }}, _marker: PhantomData::<[bool; 0]> }};
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StorageDead(_5);
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- _3 = move _4 as std::ptr::Unique<[bool]> (PointerCoercion(Unsize, Implicit));
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+ _3 = const Unique::<[bool]> {{ pointer: NonNull::<[bool]> {{ pointer: Indirect { alloc_id: ALLOC0, offset: Size(0 bytes) }: *const [bool] }}, _marker: PhantomData::<[bool]> }};
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StorageDead(_4);
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- _2 = Box::<[bool]>(copy _3, const std::alloc::Global);
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+ _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);
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StorageDead(_3);
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- _1 = A { foo: move _2 };
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+ _1 = const A {{ foo: Box::<[bool]>(Unique::<[bool]> {{ pointer: NonNull::<[bool]> {{ pointer: Indirect { alloc_id: ALLOC2, offset: Size(0 bytes) }: *const [bool] }}, _marker: PhantomData::<[bool]> }}, std::alloc::Global) }};
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StorageDead(_2);
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_0 = const ();
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drop(_1) -> [return: bb1, unwind: bb2];
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}
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bb1: {
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StorageDead(_1);
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return;
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}
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bb2 (cleanup): {
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resume;
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}
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}
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+
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+ ALLOC2 (size: 8, align: 4) { .. }
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+
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+ ALLOC1 (size: 8, align: 4) { .. }
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+
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+ ALLOC0 (size: 8, align: 4) { .. }
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