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
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
|
// MIR for `vec_move` after PreCodegen
fn vec_move(_1: Vec<impl Sized>) -> () {
debug v => _1;
let mut _0: ();
let mut _22: std::vec::IntoIter<impl Sized>;
let mut _23: std::vec::IntoIter<impl Sized>;
let mut _24: &mut std::vec::IntoIter<impl Sized>;
let mut _25: std::option::Option<impl Sized>;
let mut _26: isize;
let _28: ();
scope 1 {
debug iter => _23;
let _27: impl Sized;
scope 2 {
debug x => _27;
}
}
scope 3 (inlined <Vec<impl Sized> as IntoIterator>::into_iter) {
debug self => _1;
let _2: std::mem::ManuallyDrop<std::vec::Vec<impl Sized>>;
let mut _3: *const std::alloc::Global;
let mut _8: usize;
let mut _10: *mut impl Sized;
let mut _11: *const impl Sized;
let mut _12: usize;
let _29: &std::vec::Vec<impl Sized>;
let mut _30: &std::mem::ManuallyDrop<std::vec::Vec<impl Sized>>;
let mut _31: &alloc::raw_vec::RawVec<impl Sized>;
let mut _32: &std::mem::ManuallyDrop<std::vec::Vec<impl Sized>>;
let _33: &std::vec::Vec<impl Sized>;
let mut _34: &std::mem::ManuallyDrop<std::vec::Vec<impl Sized>>;
let _35: &std::vec::Vec<impl Sized>;
let mut _36: &std::mem::ManuallyDrop<std::vec::Vec<impl Sized>>;
let mut _37: &alloc::raw_vec::RawVec<impl Sized>;
let mut _38: &std::mem::ManuallyDrop<std::vec::Vec<impl Sized>>;
scope 4 {
debug me => _2;
scope 5 {
debug alloc => const ManuallyDrop::<std::alloc::Global> {{ value: std::alloc::Global }};
let _6: std::ptr::NonNull<impl Sized>;
scope 6 {
debug buf => _6;
let _7: *mut impl Sized;
scope 7 {
debug begin => _7;
scope 8 {
debug end => _11;
let _20: usize;
scope 9 {
debug cap => _20;
}
scope 39 (inlined <ManuallyDrop<Vec<impl Sized>> as Deref>::deref) {
debug self => _38;
}
scope 40 (inlined alloc::raw_vec::RawVec::<impl Sized>::capacity) {
debug self => _37;
let mut _19: usize;
let mut _39: &alloc::raw_vec::RawVecInner;
scope 41 (inlined std::mem::size_of::<impl Sized>) {
}
scope 42 (inlined alloc::raw_vec::RawVecInner::capacity) {
debug self => _39;
debug elem_size => _19;
let mut _21: core::num::niche_types::UsizeNoHighBit;
scope 43 (inlined core::num::niche_types::UsizeNoHighBit::as_inner) {
debug self => _21;
}
}
}
}
scope 25 (inlined <ManuallyDrop<Vec<impl Sized>> as Deref>::deref) {
debug self => _34;
}
scope 26 (inlined Vec::<impl Sized>::len) {
debug self => _33;
let mut _13: bool;
scope 27 {
}
}
scope 28 (inlined std::ptr::mut_ptr::<impl *mut impl Sized>::wrapping_byte_add) {
debug self => _7;
debug count => _12;
let mut _14: *mut u8;
let mut _18: *mut u8;
scope 29 (inlined std::ptr::mut_ptr::<impl *mut impl Sized>::cast::<u8>) {
debug self => _7;
}
scope 30 (inlined std::ptr::mut_ptr::<impl *mut u8>::wrapping_add) {
debug self => _14;
debug count => _12;
let mut _15: isize;
scope 31 (inlined std::ptr::mut_ptr::<impl *mut u8>::wrapping_offset) {
debug self => _14;
debug count => _15;
let mut _16: *const u8;
let mut _17: *const u8;
}
}
scope 32 (inlined std::ptr::mut_ptr::<impl *mut u8>::with_metadata_of::<impl Sized>) {
debug self => _18;
debug meta => _5;
scope 33 (inlined std::ptr::metadata::<impl Sized>) {
debug ptr => _5;
}
scope 34 (inlined std::ptr::from_raw_parts_mut::<impl Sized, ()>) {
}
}
}
scope 35 (inlined <ManuallyDrop<Vec<impl Sized>> as Deref>::deref) {
debug self => _36;
}
scope 36 (inlined Vec::<impl Sized>::len) {
debug self => _35;
let mut _9: bool;
scope 37 {
}
}
scope 38 (inlined #[track_caller] std::ptr::mut_ptr::<impl *mut impl Sized>::add) {
debug self => _7;
debug count => _8;
}
}
scope 24 (inlined NonNull::<impl Sized>::as_ptr) {
debug self => _6;
}
}
scope 17 (inlined <ManuallyDrop<Vec<impl Sized>> as Deref>::deref) {
debug self => _32;
}
scope 18 (inlined alloc::raw_vec::RawVec::<impl Sized>::non_null) {
debug self => _31;
scope 19 (inlined alloc::raw_vec::RawVecInner::non_null::<impl Sized>) {
let mut _4: std::ptr::NonNull<u8>;
scope 20 (inlined Unique::<u8>::cast::<impl Sized>) {
scope 21 (inlined NonNull::<u8>::cast::<impl Sized>) {
let mut _5: *const impl Sized;
scope 22 (inlined NonNull::<u8>::as_ptr) {
}
}
}
scope 23 (inlined Unique::<impl Sized>::as_non_null_ptr) {
}
}
}
}
scope 11 (inlined <ManuallyDrop<Vec<impl Sized>> as Deref>::deref) {
debug self => _30;
}
scope 12 (inlined Vec::<impl Sized>::allocator) {
debug self => _29;
scope 13 (inlined alloc::raw_vec::RawVec::<impl Sized>::allocator) {
scope 14 (inlined alloc::raw_vec::RawVecInner::allocator) {
}
}
}
scope 15 (inlined #[track_caller] std::ptr::read::<std::alloc::Global>) {
debug src => _3;
}
scope 16 (inlined ManuallyDrop::<std::alloc::Global>::new) {
debug value => const std::alloc::Global;
}
}
scope 10 (inlined ManuallyDrop::<Vec<impl Sized>>::new) {
debug value => _1;
}
}
bb0: {
StorageLive(_22);
StorageLive(_6);
StorageLive(_7);
StorageLive(_11);
StorageLive(_20);
StorageLive(_5);
StorageLive(_4);
StorageLive(_17);
StorageLive(_2);
_2 = ManuallyDrop::<Vec<impl Sized>> { value: copy _1 };
StorageLive(_3);
// DBG: _30 = &_2;
// DBG: _29 = &(_2.0: std::vec::Vec<impl Sized>);
_3 = &raw const ((((_2.0: std::vec::Vec<impl Sized>).0: alloc::raw_vec::RawVec<impl Sized>).0: alloc::raw_vec::RawVecInner).2: std::alloc::Global);
StorageDead(_3);
// DBG: _32 = &_2;
// DBG: _31 = &((_2.0: std::vec::Vec<impl Sized>).0: alloc::raw_vec::RawVec<impl Sized>);
_4 = copy (((((_2.0: std::vec::Vec<impl Sized>).0: alloc::raw_vec::RawVec<impl Sized>).0: alloc::raw_vec::RawVecInner).0: std::ptr::Unique<u8>).0: std::ptr::NonNull<u8>);
_5 = copy _4 as *const impl Sized (Transmute);
_6 = NonNull::<impl Sized> { pointer: copy _5 };
_7 = copy _4 as *mut impl Sized (Transmute);
switchInt(const <impl Sized as std::mem::SizedTypeProperties>::IS_ZST) -> [0: bb1, otherwise: bb2];
}
bb1: {
StorageLive(_10);
StorageLive(_8);
// DBG: _36 = &_2;
// DBG: _35 = &(_2.0: std::vec::Vec<impl Sized>);
_8 = copy ((_2.0: std::vec::Vec<impl Sized>).1: usize);
StorageLive(_9);
_9 = Le(copy _8, const <impl Sized as std::mem::SizedTypeProperties>::MAX_SLICE_LEN);
assume(move _9);
StorageDead(_9);
_10 = Offset(copy _7, copy _8);
_11 = copy _10 as *const impl Sized (PtrToPtr);
StorageDead(_8);
StorageDead(_10);
goto -> bb4;
}
bb2: {
StorageLive(_12);
// DBG: _34 = &_2;
// DBG: _33 = &(_2.0: std::vec::Vec<impl Sized>);
_12 = copy ((_2.0: std::vec::Vec<impl Sized>).1: usize);
StorageLive(_13);
_13 = Le(copy _12, const <impl Sized as std::mem::SizedTypeProperties>::MAX_SLICE_LEN);
assume(move _13);
StorageDead(_13);
StorageLive(_18);
StorageLive(_14);
_14 = copy _4 as *mut u8 (Transmute);
StorageLive(_15);
_15 = copy _12 as isize (IntToInt);
StorageLive(_16);
_16 = copy _4 as *const u8 (Transmute);
_17 = arith_offset::<u8>(move _16, move _15) -> [return: bb3, unwind unreachable];
}
bb3: {
StorageDead(_16);
_18 = copy _17 as *mut u8 (PtrToPtr);
StorageDead(_15);
StorageDead(_14);
StorageDead(_18);
StorageDead(_12);
_11 = copy _17 as *const impl Sized (PtrToPtr);
goto -> bb4;
}
bb4: {
// DBG: _38 = &_2;
// DBG: _37 = &((_2.0: std::vec::Vec<impl Sized>).0: alloc::raw_vec::RawVec<impl Sized>);
// DBG: _39 = &(((_2.0: std::vec::Vec<impl Sized>).0: alloc::raw_vec::RawVec<impl Sized>).0: alloc::raw_vec::RawVecInner);
StorageLive(_19);
_19 = SizeOf(impl Sized);
switchInt(move _19) -> [0: bb5, otherwise: bb6];
}
bb5: {
_20 = const usize::MAX;
goto -> bb7;
}
bb6: {
StorageLive(_21);
_21 = copy ((((_2.0: std::vec::Vec<impl Sized>).0: alloc::raw_vec::RawVec<impl Sized>).0: alloc::raw_vec::RawVecInner).1: core::num::niche_types::UsizeNoHighBit);
_20 = copy _21 as usize (Transmute);
StorageDead(_21);
goto -> bb7;
}
bb7: {
StorageDead(_19);
_22 = std::vec::IntoIter::<impl Sized> { buf: copy _6, phantom: const ZeroSized: PhantomData<impl Sized>, cap: move _20, alloc: const ManuallyDrop::<std::alloc::Global> {{ value: std::alloc::Global }}, ptr: copy _6, end: copy _11 };
StorageDead(_2);
StorageDead(_17);
StorageDead(_4);
StorageDead(_5);
StorageDead(_20);
StorageDead(_11);
StorageDead(_7);
StorageDead(_6);
StorageLive(_23);
_23 = move _22;
goto -> bb8;
}
bb8: {
StorageLive(_25);
_24 = &mut _23;
_25 = <std::vec::IntoIter<impl Sized> as Iterator>::next(move _24) -> [return: bb9, unwind: bb15];
}
bb9: {
_26 = discriminant(_25);
switchInt(move _26) -> [0: bb10, 1: bb12, otherwise: bb14];
}
bb10: {
StorageDead(_25);
drop(_23) -> [return: bb11, unwind continue];
}
bb11: {
StorageDead(_23);
StorageDead(_22);
return;
}
bb12: {
_27 = move ((_25 as Some).0: impl Sized);
_28 = opaque::<impl Sized>(move _27) -> [return: bb13, unwind: bb15];
}
bb13: {
StorageDead(_25);
goto -> bb8;
}
bb14: {
unreachable;
}
bb15 (cleanup): {
drop(_23) -> [return: bb16, unwind terminate(cleanup)];
}
bb16 (cleanup): {
resume;
}
}
|
