1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
|
// MIR for `forward_loop` after PreCodegen
fn forward_loop(_1: &[T], _2: impl Fn(&T)) -> () {
debug slice => _1;
debug f => _2;
let mut _0: ();
let mut _22: std::option::Option<&T>;
let mut _24: &impl Fn(&T);
let mut _25: (&T,);
let _26: ();
scope 1 {
debug ((iter: std::slice::Iter<'_, T>).0: std::ptr::NonNull<T>) => _6;
debug ((iter: std::slice::Iter<'_, T>).1: *const T) => _9;
debug ((iter: std::slice::Iter<'_, T>).2: std::marker::PhantomData<&T>) => const ZeroSized: PhantomData<&T>;
let _23: &T;
scope 2 {
debug x => _23;
}
scope 16 (inlined <std::slice::Iter<'_, T> as Iterator>::next) {
let mut _6: std::ptr::NonNull<T>;
let _10: std::ptr::NonNull<T>;
let _12: std::ptr::NonNull<T>;
let mut _15: bool;
let mut _19: usize;
let _21: &T;
scope 17 {
let _11: *const T;
scope 18 {
let _18: usize;
scope 19 {
scope 22 (inlined #[track_caller] core::num::<impl usize>::unchecked_sub) {
scope 23 (inlined core::ub_checks::check_language_ub) {
scope 24 (inlined core::ub_checks::check_language_ub::runtime) {
}
}
}
scope 25 (inlined without_provenance_mut::<T>) {
}
}
scope 20 (inlined std::ptr::const_ptr::<impl *const T>::addr) {
scope 21 (inlined std::ptr::const_ptr::<impl *const T>::cast::<()>) {
}
}
scope 26 (inlined <NonNull<T> as PartialEq>::eq) {
let mut _13: *mut T;
let mut _14: *mut T;
scope 27 (inlined NonNull::<T>::as_ptr) {
}
scope 28 (inlined NonNull::<T>::as_ptr) {
}
}
scope 29 (inlined NonNull::<T>::add) {
let mut _16: *const T;
let mut _17: *const T;
scope 30 (inlined NonNull::<T>::as_ptr) {
}
}
scope 31 (inlined NonNull::<T>::as_ref::<'_>) {
let _20: *const T;
scope 32 (inlined NonNull::<T>::as_ptr) {
}
scope 33 (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 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);
goto -> bb4;
}
bb4: {
StorageLive(_22);
StorageLive(_10);
StorageLive(_11);
StorageLive(_18);
StorageLive(_19);
StorageLive(_12);
StorageLive(_21);
_10 = copy _6;
_11 = copy _9;
switchInt(const <T as std::mem::SizedTypeProperties>::IS_ZST) -> [0: bb5, otherwise: bb8];
}
bb5: {
StorageLive(_15);
_12 = copy _11 as std::ptr::NonNull<T> (Transmute);
StorageLive(_13);
_13 = copy _10 as *mut T (Transmute);
StorageLive(_14);
_14 = copy _12 as *mut T (Transmute);
_15 = Eq(copy _13, copy _14);
StorageDead(_14);
StorageDead(_13);
switchInt(move _15) -> [0: bb6, otherwise: bb7];
}
bb6: {
StorageDead(_15);
StorageLive(_17);
StorageLive(_16);
_16 = copy _10 as *const T (Transmute);
_17 = Offset(copy _16, const 1_usize);
StorageDead(_16);
_6 = NonNull::<T> { pointer: copy _17 };
StorageDead(_17);
goto -> bb13;
}
bb7: {
StorageDead(_15);
StorageDead(_21);
StorageDead(_12);
StorageDead(_19);
StorageDead(_18);
StorageDead(_11);
StorageDead(_10);
goto -> bb10;
}
bb8: {
_18 = copy _11 as usize (Transmute);
switchInt(copy _18) -> [0: bb9, otherwise: bb12];
}
bb9: {
StorageDead(_21);
StorageDead(_12);
StorageDead(_19);
StorageDead(_18);
StorageDead(_11);
StorageDead(_10);
goto -> bb10;
}
bb10: {
StorageDead(_22);
drop(_2) -> [return: bb11, unwind continue];
}
bb11: {
return;
}
bb12: {
_19 = SubUnchecked(copy _18, const 1_usize);
_9 = copy _19 as *const T (Transmute);
goto -> bb13;
}
bb13: {
StorageLive(_20);
_20 = copy _10 as *const T (Transmute);
_21 = &(*_20);
StorageDead(_20);
_22 = Option::<&T>::Some(copy _21);
StorageDead(_21);
StorageDead(_12);
StorageDead(_19);
StorageDead(_18);
StorageDead(_11);
StorageDead(_10);
_23 = copy ((_22 as Some).0: &T);
StorageLive(_24);
_24 = &_2;
StorageLive(_25);
_25 = (copy _23,);
_26 = <impl Fn(&T) as Fn<(&T,)>>::call(move _24, move _25) -> [return: bb14, unwind: bb15];
}
bb14: {
StorageDead(_25);
StorageDead(_24);
StorageDead(_22);
goto -> bb4;
}
bb15 (cleanup): {
drop(_2) -> [return: bb16, unwind terminate(cleanup)];
}
bb16 (cleanup): {
resume;
}
}
|
