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|
// MIR for `enumerated_loop` after PreCodegen
fn enumerated_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () {
debug slice => _1;
debug f => _2;
let mut _0: ();
let mut _10: usize;
let mut _28: std::option::Option<(usize, &T)>;
let mut _31: &impl Fn(usize, &T);
let mut _32: (usize, &T);
let _33: ();
scope 1 {
debug (((iter: Enumerate<std::slice::Iter<'_, T>>).0: std::slice::Iter<'_, T>).0: std::ptr::NonNull<T>) => _6;
debug (((iter: Enumerate<std::slice::Iter<'_, T>>).0: std::slice::Iter<'_, T>).1: *const T) => _9;
debug (((iter: Enumerate<std::slice::Iter<'_, T>>).0: std::slice::Iter<'_, T>).2: std::marker::PhantomData<&T>) => const ZeroSized: PhantomData<&T>;
debug ((iter: Enumerate<std::slice::Iter<'_, T>>).1: usize) => _10;
let _29: usize;
let _30: &T;
scope 2 {
debug i => _29;
debug x => _30;
}
scope 18 (inlined <Enumerate<std::slice::Iter<'_, T>> as Iterator>::next) {
let mut _23: std::option::Option<&T>;
let mut _26: (usize, bool);
let mut _27: (usize, &T);
scope 19 {
let _25: usize;
scope 24 {
}
}
scope 20 {
scope 21 {
scope 27 (inlined <Option<(usize, &T)> as FromResidual<Option<Infallible>>>::from_residual) {
}
}
}
scope 22 {
scope 23 {
}
}
scope 25 (inlined <Option<&T> as Try>::branch) {
let _24: &T;
scope 26 {
}
}
scope 28 (inlined <std::slice::Iter<'_, T> as Iterator>::next) {
let mut _6: std::ptr::NonNull<T>;
let _11: std::ptr::NonNull<T>;
let _13: std::ptr::NonNull<T>;
let mut _16: bool;
let mut _20: usize;
let _22: &T;
scope 29 {
let _12: *const T;
scope 30 {
let _19: usize;
scope 31 {
scope 34 (inlined #[track_caller] core::num::<impl usize>::unchecked_sub) {
scope 35 (inlined core::ub_checks::check_language_ub) {
scope 36 (inlined core::ub_checks::check_language_ub::runtime) {
}
}
}
scope 37 (inlined without_provenance_mut::<T>) {
}
}
scope 32 (inlined std::ptr::const_ptr::<impl *const T>::addr) {
scope 33 (inlined std::ptr::const_ptr::<impl *const T>::cast::<()>) {
}
}
scope 38 (inlined <NonNull<T> as PartialEq>::eq) {
let mut _14: *mut T;
let mut _15: *mut T;
scope 39 (inlined NonNull::<T>::as_ptr) {
}
scope 40 (inlined NonNull::<T>::as_ptr) {
}
}
scope 41 (inlined NonNull::<T>::add) {
let mut _17: *const T;
let mut _18: *const T;
scope 42 (inlined NonNull::<T>::as_ptr) {
}
}
scope 43 (inlined NonNull::<T>::as_ref::<'_>) {
let _21: *const T;
scope 44 (inlined NonNull::<T>::as_ptr) {
}
scope 45 (inlined std::ptr::mut_ptr::<impl *mut T>::cast_const) {
}
}
}
}
}
}
}
scope 3 (inlined core::slice::<impl [T]>::iter) {
scope 4 (inlined std::slice::Iter::<'_, T>::new) {
let _3: usize;
let mut _7: *mut T;
let mut _8: *mut T;
scope 5 {
scope 6 {
let _9: *const T;
scope 7 {
}
scope 11 (inlined std::ptr::without_provenance::<T>) {
scope 12 (inlined without_provenance_mut::<T>) {
}
}
scope 13 (inlined NonNull::<T>::as_ptr) {
}
scope 14 (inlined #[track_caller] std::ptr::mut_ptr::<impl *mut T>::add) {
}
}
scope 8 (inlined NonNull::<[T]>::from_ref) {
let mut _4: *const [T];
}
scope 9 (inlined NonNull::<[T]>::cast::<T>) {
let mut _5: *const T;
scope 10 (inlined NonNull::<[T]>::as_ptr) {
}
}
}
}
}
scope 15 (inlined <std::slice::Iter<'_, T> as Iterator>::enumerate) {
scope 16 (inlined Enumerate::<std::slice::Iter<'_, T>>::new) {
}
}
scope 17 (inlined <Enumerate<std::slice::Iter<'_, T>> as IntoIterator>::into_iter) {
}
bb0: {
StorageLive(_3);
StorageLive(_4);
_3 = PtrMetadata(copy _1);
_4 = &raw const (*_1);
StorageLive(_5);
_5 = copy _4 as *const T (PtrToPtr);
_6 = NonNull::<T> { pointer: copy _5 };
StorageDead(_5);
switchInt(const <T as std::mem::SizedTypeProperties>::IS_ZST) -> [0: bb1, otherwise: bb2];
}
bb1: {
StorageLive(_8);
StorageLive(_7);
_7 = copy _4 as *mut T (PtrToPtr);
_8 = Offset(copy _7, copy _3);
StorageDead(_7);
_9 = copy _8 as *const T (PtrToPtr);
StorageDead(_8);
goto -> bb3;
}
bb2: {
_9 = copy _3 as *const T (Transmute);
goto -> bb3;
}
bb3: {
StorageDead(_4);
StorageDead(_3);
StorageLive(_10);
_10 = const 0_usize;
goto -> bb4;
}
bb4: {
StorageLive(_28);
StorageLive(_25);
StorageLive(_26);
StorageLive(_23);
StorageLive(_11);
StorageLive(_12);
StorageLive(_19);
StorageLive(_20);
StorageLive(_13);
StorageLive(_22);
_11 = copy _6;
_12 = copy _9;
switchInt(const <T as std::mem::SizedTypeProperties>::IS_ZST) -> [0: bb5, otherwise: bb8];
}
bb5: {
StorageLive(_16);
_13 = copy _12 as std::ptr::NonNull<T> (Transmute);
StorageLive(_14);
_14 = copy _11 as *mut T (Transmute);
StorageLive(_15);
_15 = copy _13 as *mut T (Transmute);
_16 = Eq(copy _14, copy _15);
StorageDead(_15);
StorageDead(_14);
switchInt(move _16) -> [0: bb6, otherwise: bb7];
}
bb6: {
StorageDead(_16);
StorageLive(_18);
StorageLive(_17);
_17 = copy _11 as *const T (Transmute);
_18 = Offset(copy _17, const 1_usize);
StorageDead(_17);
_6 = NonNull::<T> { pointer: copy _18 };
StorageDead(_18);
goto -> bb13;
}
bb7: {
StorageDead(_16);
StorageDead(_22);
StorageDead(_13);
StorageDead(_20);
StorageDead(_19);
StorageDead(_12);
StorageDead(_11);
goto -> bb10;
}
bb8: {
_19 = copy _12 as usize (Transmute);
switchInt(copy _19) -> [0: bb9, otherwise: bb12];
}
bb9: {
StorageDead(_22);
StorageDead(_13);
StorageDead(_20);
StorageDead(_19);
StorageDead(_12);
StorageDead(_11);
goto -> bb10;
}
bb10: {
StorageDead(_23);
StorageDead(_26);
StorageDead(_25);
StorageDead(_28);
StorageDead(_10);
drop(_2) -> [return: bb11, unwind unreachable];
}
bb11: {
return;
}
bb12: {
_20 = SubUnchecked(copy _19, const 1_usize);
_9 = copy _20 as *const T (Transmute);
goto -> bb13;
}
bb13: {
StorageLive(_21);
_21 = copy _11 as *const T (Transmute);
_22 = &(*_21);
StorageDead(_21);
_23 = Option::<&T>::Some(copy _22);
StorageDead(_22);
StorageDead(_13);
StorageDead(_20);
StorageDead(_19);
StorageDead(_12);
StorageDead(_11);
_24 = copy ((_23 as Some).0: &T);
StorageDead(_23);
_25 = copy _10;
_26 = AddWithOverflow(copy _10, const 1_usize);
assert(!move (_26.1: bool), "attempt to compute `{} + {}`, which would overflow", copy _10, const 1_usize) -> [success: bb14, unwind unreachable];
}
bb14: {
_10 = move (_26.0: usize);
StorageLive(_27);
_27 = (copy _25, copy _24);
_28 = Option::<(usize, &T)>::Some(move _27);
StorageDead(_27);
StorageDead(_26);
StorageDead(_25);
_29 = copy (((_28 as Some).0: (usize, &T)).0: usize);
_30 = copy (((_28 as Some).0: (usize, &T)).1: &T);
StorageLive(_31);
_31 = &_2;
StorageLive(_32);
_32 = (copy _29, copy _30);
_33 = <impl Fn(usize, &T) as Fn<(usize, &T)>>::call(move _31, move _32) -> [return: bb15, unwind unreachable];
}
bb15: {
StorageDead(_32);
StorageDead(_31);
StorageDead(_28);
goto -> bb4;
}
}
|
