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https://github.com/rust-lang/rust.git
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202 lines
5.9 KiB
Rust
202 lines
5.9 KiB
Rust
// MIR for `enumerated_loop` after PreCodegen
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fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () {
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debug slice => _1;
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debug f => _2;
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let mut _0: ();
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let mut _11: std::slice::Iter<'_, T>;
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let mut _12: std::iter::Enumerate<std::slice::Iter<'_, T>>;
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let mut _13: std::iter::Enumerate<std::slice::Iter<'_, T>>;
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let mut _21: std::option::Option<(usize, &T)>;
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let mut _24: &impl Fn(usize, &T);
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let mut _25: (usize, &T);
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let _26: ();
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scope 1 {
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debug iter => _13;
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let _22: usize;
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let _23: &T;
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scope 2 {
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debug i => _22;
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debug x => _23;
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}
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scope 17 (inlined <Enumerate<std::slice::Iter<'_, T>> as Iterator>::next) {
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let mut _14: &mut std::slice::Iter<'_, T>;
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let mut _15: std::option::Option<&T>;
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let mut _19: (usize, bool);
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let mut _20: (usize, &T);
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scope 18 {
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let _18: usize;
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scope 23 {
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}
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}
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scope 19 {
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scope 20 {
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scope 26 (inlined <Option<(usize, &T)> as FromResidual<Option<Infallible>>>::from_residual) {
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}
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}
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}
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scope 21 {
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scope 22 {
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}
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}
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scope 24 (inlined <Option<&T> as Try>::branch) {
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let mut _16: isize;
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let _17: &T;
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scope 25 {
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}
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}
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}
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}
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scope 3 (inlined core::slice::<impl [T]>::iter) {
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scope 4 (inlined std::slice::Iter::<'_, T>::new) {
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let _3: usize;
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let mut _7: *mut T;
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let mut _8: *mut T;
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let mut _10: *const T;
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scope 5 {
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let _6: std::ptr::NonNull<T>;
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scope 6 {
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let _9: *const T;
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scope 7 {
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}
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scope 11 (inlined without_provenance::<T>) {
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}
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scope 12 (inlined NonNull::<T>::as_ptr) {
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}
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scope 13 (inlined std::ptr::mut_ptr::<impl *mut T>::add) {
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}
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}
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scope 8 (inlined <NonNull<[T]> as From<&[T]>>::from) {
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let mut _4: *const [T];
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}
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scope 9 (inlined NonNull::<[T]>::cast::<T>) {
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let mut _5: *const T;
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scope 10 (inlined NonNull::<[T]>::as_ptr) {
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}
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}
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}
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}
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}
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scope 14 (inlined <std::slice::Iter<'_, T> as Iterator>::enumerate) {
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scope 15 (inlined Enumerate::<std::slice::Iter<'_, T>>::new) {
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}
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}
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scope 16 (inlined <Enumerate<std::slice::Iter<'_, T>> as IntoIterator>::into_iter) {
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}
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bb0: {
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StorageLive(_11);
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StorageLive(_3);
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StorageLive(_6);
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StorageLive(_4);
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StorageLive(_5);
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_3 = PtrMetadata(copy _1);
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_4 = &raw const (*_1);
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_5 = copy _4 as *const T (PtrToPtr);
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_6 = NonNull::<T> { pointer: copy _5 };
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StorageLive(_9);
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switchInt(const <T as std::mem::SizedTypeProperties>::IS_ZST) -> [0: bb1, otherwise: bb2];
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}
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bb1: {
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StorageLive(_8);
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StorageLive(_7);
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_7 = copy _4 as *mut T (PtrToPtr);
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_8 = Offset(copy _7, copy _3);
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StorageDead(_7);
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_9 = move _8 as *const T (PtrToPtr);
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StorageDead(_8);
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goto -> bb3;
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}
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bb2: {
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_9 = copy _3 as *const T (Transmute);
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goto -> bb3;
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}
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bb3: {
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StorageLive(_10);
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_10 = copy _9;
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_11 = std::slice::Iter::<'_, T> { ptr: copy _6, end_or_len: move _10, _marker: const ZeroSized: PhantomData<&T> };
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StorageDead(_10);
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StorageDead(_9);
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StorageDead(_5);
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StorageDead(_4);
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StorageDead(_6);
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StorageDead(_3);
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_12 = Enumerate::<std::slice::Iter<'_, T>> { iter: copy _11, count: const 0_usize };
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StorageDead(_11);
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StorageLive(_13);
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_13 = copy _12;
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goto -> bb4;
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}
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bb4: {
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StorageLive(_21);
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StorageLive(_18);
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StorageLive(_19);
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StorageLive(_15);
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StorageLive(_14);
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_14 = &mut (_13.0: std::slice::Iter<'_, T>);
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_15 = <std::slice::Iter<'_, T> as Iterator>::next(move _14) -> [return: bb5, unwind unreachable];
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}
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bb5: {
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StorageDead(_14);
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StorageLive(_16);
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_16 = discriminant(_15);
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switchInt(move _16) -> [0: bb6, 1: bb8, otherwise: bb11];
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}
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bb6: {
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StorageDead(_16);
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StorageDead(_15);
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StorageDead(_19);
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StorageDead(_18);
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StorageDead(_21);
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StorageDead(_13);
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drop(_2) -> [return: bb7, unwind unreachable];
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}
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bb7: {
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return;
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}
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bb8: {
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_17 = move ((_15 as Some).0: &T);
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StorageDead(_16);
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StorageDead(_15);
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_18 = copy (_13.1: usize);
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_19 = AddWithOverflow(copy (_13.1: usize), const 1_usize);
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assert(!move (_19.1: bool), "attempt to compute `{} + {}`, which would overflow", copy (_13.1: usize), const 1_usize) -> [success: bb9, unwind unreachable];
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}
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bb9: {
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(_13.1: usize) = move (_19.0: usize);
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StorageLive(_20);
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_20 = (copy _18, copy _17);
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_21 = Option::<(usize, &T)>::Some(move _20);
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StorageDead(_20);
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StorageDead(_19);
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StorageDead(_18);
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_22 = copy (((_21 as Some).0: (usize, &T)).0: usize);
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_23 = copy (((_21 as Some).0: (usize, &T)).1: &T);
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StorageLive(_24);
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_24 = &_2;
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StorageLive(_25);
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_25 = (copy _22, copy _23);
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_26 = <impl Fn(usize, &T) as Fn<(usize, &T)>>::call(move _24, move _25) -> [return: bb10, unwind unreachable];
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}
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bb10: {
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StorageDead(_25);
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StorageDead(_24);
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StorageDead(_21);
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goto -> bb4;
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}
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bb11: {
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unreachable;
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}
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}
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