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
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
|
- // MIR for `aggregate_struct_then_transmute` before GVN
+ // MIR for `aggregate_struct_then_transmute` after GVN
fn aggregate_struct_then_transmute(_1: u16, _2: *const u8) -> () {
debug id => _1;
debug thin => _2;
let mut _0: ();
let _3: MyId;
let mut _4: u16;
let _5: ();
let mut _6: u16;
let mut _7: MyId;
let mut _9: u16;
let mut _10: std::marker::PhantomData<std::string::String>;
let _11: ();
let mut _12: u16;
let mut _13: TypedId<std::string::String>;
let mut _15: u16;
let _16: ();
let mut _17: u16;
let mut _18: std::result::Result<Never, u16>;
let mut _20: u16;
let _21: ();
let mut _22: u32;
let mut _23: std::option::Option<u16>;
let mut _25: u16;
let _26: ();
let mut _27: i16;
let mut _28: MyId;
let mut _30: u16;
let mut _31: u16;
let _32: ();
let mut _33: u32;
let mut _34: aggregate_struct_then_transmute::Pair;
let mut _36: u16;
let mut _37: u16;
let _38: ();
let mut _39: u16;
let mut _40: aggregate_struct_then_transmute::Pair;
let mut _42: u16;
let _43: ();
let mut _44: u16;
let mut _45: (u16,);
let mut _47: u16;
let _48: ();
let mut _49: u16;
let mut _50: [u16; 1];
let mut _52: *const u8;
let mut _53: ();
let _54: ();
let mut _55: *const u8;
let mut _56: *const i32;
scope 1 {
debug a => _3;
let _8: TypedId<std::string::String>;
scope 2 {
debug b => _8;
let _14: std::result::Result<Never, u16>;
scope 3 {
debug c => _14;
let _19: std::option::Option<u16>;
scope 4 {
debug d => _19;
let _24: MyId;
scope 5 {
debug e => _24;
let _29: aggregate_struct_then_transmute::Pair;
scope 6 {
debug f => _29;
let _35: aggregate_struct_then_transmute::Pair;
scope 7 {
debug g => _35;
let _41: (u16,);
scope 8 {
debug h => _41;
let _46: [u16; 1];
scope 9 {
debug i => _46;
let _51: *const i32;
scope 10 {
debug j => _51;
}
}
}
}
}
}
}
}
}
}
bb0: {
- StorageLive(_3);
+ nop;
StorageLive(_4);
_4 = copy _1;
- _3 = MyId(move _4);
+ _3 = MyId(copy _1);
StorageDead(_4);
StorageLive(_5);
StorageLive(_6);
StorageLive(_7);
- _7 = move _3;
- _6 = move _7 as u16 (Transmute);
+ _7 = copy _3;
+ _6 = copy _1;
StorageDead(_7);
- _5 = opaque::<u16>(move _6) -> [return: bb1, unwind continue];
+ _5 = opaque::<u16>(copy _1) -> [return: bb1, unwind continue];
}
bb1: {
StorageDead(_6);
StorageDead(_5);
- StorageLive(_8);
+ nop;
StorageLive(_9);
_9 = copy _1;
StorageLive(_10);
- _10 = PhantomData::<String>;
- _8 = TypedId::<String>(move _9, move _10);
+ _10 = const PhantomData::<String>;
+ _8 = TypedId::<String>(copy _1, const PhantomData::<String>);
StorageDead(_10);
StorageDead(_9);
StorageLive(_11);
StorageLive(_12);
StorageLive(_13);
- _13 = move _8;
- _12 = move _13 as u16 (Transmute);
+ _13 = copy _8;
+ _12 = copy _1;
StorageDead(_13);
- _11 = opaque::<u16>(move _12) -> [return: bb2, unwind continue];
+ _11 = opaque::<u16>(copy _1) -> [return: bb2, unwind continue];
}
bb2: {
StorageDead(_12);
StorageDead(_11);
- StorageLive(_14);
+ nop;
StorageLive(_15);
_15 = copy _1;
- _14 = Result::<Never, u16>::Err(move _15);
+ _14 = Result::<Never, u16>::Err(copy _1);
StorageDead(_15);
StorageLive(_16);
StorageLive(_17);
StorageLive(_18);
- _18 = move _14;
- _17 = move _18 as u16 (Transmute);
+ _18 = copy _14;
+ _17 = copy _1;
StorageDead(_18);
- _16 = opaque::<u16>(move _17) -> [return: bb3, unwind continue];
+ _16 = opaque::<u16>(copy _1) -> [return: bb3, unwind continue];
}
bb3: {
StorageDead(_17);
StorageDead(_16);
- StorageLive(_19);
+ nop;
StorageLive(_20);
_20 = copy _1;
- _19 = Option::<u16>::Some(move _20);
+ _19 = Option::<u16>::Some(copy _1);
StorageDead(_20);
StorageLive(_21);
StorageLive(_22);
StorageLive(_23);
_23 = copy _19;
- _22 = move _23 as u32 (Transmute);
+ _22 = copy _19 as u32 (Transmute);
StorageDead(_23);
_21 = opaque::<u32>(move _22) -> [return: bb4, unwind continue];
}
bb4: {
StorageDead(_22);
StorageDead(_21);
StorageLive(_24);
StorageLive(_25);
_25 = copy _1;
- _24 = MyId(move _25);
+ _24 = copy _3;
StorageDead(_25);
StorageLive(_26);
StorageLive(_27);
StorageLive(_28);
- _28 = move _24;
- _27 = move _28 as i16 (Transmute);
+ _28 = copy _3;
+ _27 = copy _1 as i16 (Transmute);
StorageDead(_28);
_26 = opaque::<i16>(move _27) -> [return: bb5, unwind continue];
}
bb5: {
StorageDead(_27);
StorageDead(_26);
- StorageLive(_29);
+ nop;
StorageLive(_30);
_30 = copy _1;
StorageLive(_31);
_31 = copy _1;
- _29 = Pair(move _30, move _31);
+ _29 = Pair(copy _1, copy _1);
StorageDead(_31);
StorageDead(_30);
StorageLive(_32);
StorageLive(_33);
StorageLive(_34);
- _34 = move _29;
- _33 = move _34 as u32 (Transmute);
+ _34 = copy _29;
+ _33 = copy _29 as u32 (Transmute);
StorageDead(_34);
_32 = opaque::<u32>(move _33) -> [return: bb6, unwind continue];
}
bb6: {
StorageDead(_33);
StorageDead(_32);
StorageLive(_35);
StorageLive(_36);
_36 = copy _1;
StorageLive(_37);
_37 = copy _1;
- _35 = Pair(move _36, move _37);
+ _35 = copy _29;
StorageDead(_37);
StorageDead(_36);
StorageLive(_38);
StorageLive(_39);
StorageLive(_40);
- _40 = move _35;
- _39 = move _40 as u16 (Transmute);
+ _40 = copy _29;
+ _39 = copy _29 as u16 (Transmute);
StorageDead(_40);
_38 = opaque::<u16>(move _39) -> [return: bb7, unwind continue];
}
bb7: {
StorageDead(_39);
StorageDead(_38);
- StorageLive(_41);
+ nop;
StorageLive(_42);
_42 = copy _1;
- _41 = (move _42,);
+ _41 = (copy _1,);
StorageDead(_42);
StorageLive(_43);
StorageLive(_44);
StorageLive(_45);
_45 = copy _41;
- _44 = move _45 as u16 (Transmute);
+ _44 = copy _1;
StorageDead(_45);
- _43 = opaque::<u16>(move _44) -> [return: bb8, unwind continue];
+ _43 = opaque::<u16>(copy _1) -> [return: bb8, unwind continue];
}
bb8: {
StorageDead(_44);
StorageDead(_43);
- StorageLive(_46);
+ nop;
StorageLive(_47);
_47 = copy _1;
- _46 = [move _47];
+ _46 = [copy _1];
StorageDead(_47);
StorageLive(_48);
StorageLive(_49);
StorageLive(_50);
_50 = copy _46;
- _49 = move _50 as u16 (Transmute);
+ _49 = copy _1;
StorageDead(_50);
- _48 = opaque::<u16>(move _49) -> [return: bb9, unwind continue];
+ _48 = opaque::<u16>(copy _1) -> [return: bb9, unwind continue];
}
bb9: {
StorageDead(_49);
StorageDead(_48);
- StorageLive(_51);
+ nop;
StorageLive(_52);
_52 = copy _2;
StorageLive(_53);
- _53 = ();
- _51 = *const i32 from (move _52, move _53);
+ _53 = const ();
+ _51 = *const i32 from (copy _2, const ());
StorageDead(_53);
StorageDead(_52);
StorageLive(_54);
StorageLive(_55);
StorageLive(_56);
_56 = copy _51;
- _55 = move _56 as *const u8 (Transmute);
+ _55 = copy _2;
StorageDead(_56);
- _54 = opaque::<*const u8>(move _55) -> [return: bb10, unwind continue];
+ _54 = opaque::<*const u8>(copy _2) -> [return: bb10, unwind continue];
}
bb10: {
StorageDead(_55);
StorageDead(_54);
_0 = const ();
- StorageDead(_51);
- StorageDead(_46);
- StorageDead(_41);
+ nop;
+ nop;
+ nop;
StorageDead(_35);
- StorageDead(_29);
+ nop;
StorageDead(_24);
- StorageDead(_19);
- StorageDead(_14);
- StorageDead(_8);
- StorageDead(_3);
+ nop;
+ nop;
+ nop;
+ nop;
return;
}
}
|
