summaryrefslogtreecommitdiffstats
path: root/tests/mir-opt/building/async_await.b-{closure#0}.generator_resume.0.mir
blob: 80ac92d59f3c2c86269143ee9a90fee169a798c3 (plain)
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
// MIR for `b::{closure#0}` 0 generator_resume
/* generator_layout = GeneratorLayout {
    field_tys: {
        _0: GeneratorSavedTy {
            ty: impl std::future::Future<Output = ()>,
            source_info: SourceInfo {
                span: $DIR/async_await.rs:15:9: 15:14 (#8),
                scope: scope[0],
            },
            ignore_for_traits: false,
        },
        _1: GeneratorSavedTy {
            ty: impl std::future::Future<Output = ()>,
            source_info: SourceInfo {
                span: $DIR/async_await.rs:16:9: 16:14 (#10),
                scope: scope[0],
            },
            ignore_for_traits: false,
        },
    },
    variant_fields: {
        Unresumed(0): [],
        Returned (1): [],
        Panicked (2): [],
        Suspend0 (3): [_0],
        Suspend1 (4): [_1],
    },
    storage_conflicts: BitMatrix(2x2) {
        (_0, _0),
        (_1, _1),
    },
} */

fn b::{closure#0}(_1: Pin<&mut [async fn body@$DIR/async_await.rs:14:18: 17:2]>, _2: &mut Context<'_>) -> Poll<()> {
    debug _task_context => _38;
    let mut _0: std::task::Poll<()>;
    let _3: ();
    let mut _4: impl std::future::Future<Output = ()>;
    let mut _5: impl std::future::Future<Output = ()>;
    let mut _6: impl std::future::Future<Output = ()>;
    let mut _7: ();
    let _8: ();
    let mut _9: std::task::Poll<()>;
    let mut _10: std::pin::Pin<&mut impl std::future::Future<Output = ()>>;
    let mut _11: &mut impl std::future::Future<Output = ()>;
    let mut _12: &mut impl std::future::Future<Output = ()>;
    let mut _13: &mut std::task::Context<'_>;
    let mut _14: &mut std::task::Context<'_>;
    let mut _15: &mut std::task::Context<'_>;
    let mut _16: isize;
    let mut _18: !;
    let mut _19: &mut std::task::Context<'_>;
    let mut _20: ();
    let mut _21: impl std::future::Future<Output = ()>;
    let mut _22: impl std::future::Future<Output = ()>;
    let mut _23: impl std::future::Future<Output = ()>;
    let _24: ();
    let mut _25: std::task::Poll<()>;
    let mut _26: std::pin::Pin<&mut impl std::future::Future<Output = ()>>;
    let mut _27: &mut impl std::future::Future<Output = ()>;
    let mut _28: &mut impl std::future::Future<Output = ()>;
    let mut _29: &mut std::task::Context<'_>;
    let mut _30: &mut std::task::Context<'_>;
    let mut _31: &mut std::task::Context<'_>;
    let mut _32: isize;
    let mut _34: !;
    let mut _35: &mut std::task::Context<'_>;
    let mut _36: ();
    let mut _37: ();
    let mut _38: &mut std::task::Context<'_>;
    let mut _39: u32;
    scope 1 {
        debug __awaitee => (((*(_1.0: &mut [async fn body@$DIR/async_await.rs:14:18: 17:2])) as variant#3).0: impl std::future::Future<Output = ()>);
        let _17: ();
        scope 2 {
        }
        scope 3 {
            debug result => _17;
        }
    }
    scope 4 {
        debug __awaitee => (((*(_1.0: &mut [async fn body@$DIR/async_await.rs:14:18: 17:2])) as variant#4).0: impl std::future::Future<Output = ()>);
        let _33: ();
        scope 5 {
        }
        scope 6 {
            debug result => _33;
        }
    }

    bb0: {
        _39 = discriminant((*(_1.0: &mut [async fn body@$DIR/async_await.rs:14:18: 17:2])));
        switchInt(move _39) -> [0: bb1, 1: bb28, 3: bb26, 4: bb27, otherwise: bb29];
    }

    bb1: {
        _38 = move _2;
        StorageLive(_3);
        StorageLive(_4);
        StorageLive(_5);
        _5 = a() -> [return: bb2, unwind unreachable];
    }

    bb2: {
        _4 = <impl Future<Output = ()> as IntoFuture>::into_future(move _5) -> [return: bb3, unwind unreachable];
    }

    bb3: {
        StorageDead(_5);
        nop;
        (((*(_1.0: &mut [async fn body@$DIR/async_await.rs:14:18: 17:2])) as variant#3).0: impl std::future::Future<Output = ()>) = move _4;
        goto -> bb4;
    }

    bb4: {
        StorageLive(_8);
        StorageLive(_9);
        StorageLive(_10);
        StorageLive(_11);
        StorageLive(_12);
        _12 = &mut (((*(_1.0: &mut [async fn body@$DIR/async_await.rs:14:18: 17:2])) as variant#3).0: impl std::future::Future<Output = ()>);
        _11 = &mut (*_12);
        _10 = Pin::<&mut impl Future<Output = ()>>::new_unchecked(move _11) -> [return: bb5, unwind unreachable];
    }

    bb5: {
        StorageDead(_11);
        StorageLive(_13);
        StorageLive(_14);
        StorageLive(_15);
        _15 = _38;
        _14 = move _15;
        goto -> bb6;
    }

    bb6: {
        _13 = &mut (*_14);
        StorageDead(_15);
        _9 = <impl Future<Output = ()> as Future>::poll(move _10, move _13) -> [return: bb7, unwind unreachable];
    }

    bb7: {
        StorageDead(_13);
        StorageDead(_10);
        _16 = discriminant(_9);
        switchInt(move _16) -> [0: bb10, 1: bb8, otherwise: bb9];
    }

    bb8: {
        _8 = const ();
        StorageDead(_14);
        StorageDead(_12);
        StorageDead(_9);
        StorageDead(_8);
        StorageLive(_19);
        StorageLive(_20);
        _20 = ();
        _0 = Poll::<()>::Pending;
        discriminant((*(_1.0: &mut [async fn body@$DIR/async_await.rs:14:18: 17:2]))) = 3;
        return;
    }

    bb9: {
        unreachable;
    }

    bb10: {
        StorageLive(_17);
        _17 = ((_9 as Ready).0: ());
        _3 = _17;
        StorageDead(_17);
        StorageDead(_14);
        StorageDead(_12);
        StorageDead(_9);
        StorageDead(_8);
        goto -> bb12;
    }

    bb11: {
        StorageDead(_20);
        _38 = move _19;
        StorageDead(_19);
        _7 = const ();
        goto -> bb4;
    }

    bb12: {
        nop;
        goto -> bb13;
    }

    bb13: {
        StorageDead(_4);
        StorageDead(_3);
        StorageLive(_21);
        StorageLive(_22);
        _22 = a() -> [return: bb14, unwind unreachable];
    }

    bb14: {
        _21 = <impl Future<Output = ()> as IntoFuture>::into_future(move _22) -> [return: bb15, unwind unreachable];
    }

    bb15: {
        StorageDead(_22);
        nop;
        (((*(_1.0: &mut [async fn body@$DIR/async_await.rs:14:18: 17:2])) as variant#4).0: impl std::future::Future<Output = ()>) = move _21;
        goto -> bb16;
    }

    bb16: {
        StorageLive(_24);
        StorageLive(_25);
        StorageLive(_26);
        StorageLive(_27);
        StorageLive(_28);
        _28 = &mut (((*(_1.0: &mut [async fn body@$DIR/async_await.rs:14:18: 17:2])) as variant#4).0: impl std::future::Future<Output = ()>);
        _27 = &mut (*_28);
        _26 = Pin::<&mut impl Future<Output = ()>>::new_unchecked(move _27) -> [return: bb17, unwind unreachable];
    }

    bb17: {
        StorageDead(_27);
        StorageLive(_29);
        StorageLive(_30);
        StorageLive(_31);
        _31 = _38;
        _30 = move _31;
        goto -> bb18;
    }

    bb18: {
        _29 = &mut (*_30);
        StorageDead(_31);
        _25 = <impl Future<Output = ()> as Future>::poll(move _26, move _29) -> [return: bb19, unwind unreachable];
    }

    bb19: {
        StorageDead(_29);
        StorageDead(_26);
        _32 = discriminant(_25);
        switchInt(move _32) -> [0: bb21, 1: bb20, otherwise: bb9];
    }

    bb20: {
        _24 = const ();
        StorageDead(_30);
        StorageDead(_28);
        StorageDead(_25);
        StorageDead(_24);
        StorageLive(_35);
        StorageLive(_36);
        _36 = ();
        _0 = Poll::<()>::Pending;
        discriminant((*(_1.0: &mut [async fn body@$DIR/async_await.rs:14:18: 17:2]))) = 4;
        return;
    }

    bb21: {
        StorageLive(_33);
        _33 = ((_25 as Ready).0: ());
        _37 = _33;
        StorageDead(_33);
        StorageDead(_30);
        StorageDead(_28);
        StorageDead(_25);
        StorageDead(_24);
        goto -> bb23;
    }

    bb22: {
        StorageDead(_36);
        _38 = move _35;
        StorageDead(_35);
        _7 = const ();
        goto -> bb16;
    }

    bb23: {
        nop;
        goto -> bb24;
    }

    bb24: {
        StorageDead(_21);
        goto -> bb25;
    }

    bb25: {
        _0 = Poll::<()>::Ready(move _37);
        discriminant((*(_1.0: &mut [async fn body@$DIR/async_await.rs:14:18: 17:2]))) = 1;
        return;
    }

    bb26: {
        StorageLive(_3);
        StorageLive(_4);
        StorageLive(_19);
        StorageLive(_20);
        _19 = move _2;
        goto -> bb11;
    }

    bb27: {
        StorageLive(_21);
        StorageLive(_35);
        StorageLive(_36);
        _35 = move _2;
        goto -> bb22;
    }

    bb28: {
        assert(const false, "`async fn` resumed after completion") -> [success: bb28, unwind unreachable];
    }

    bb29: {
        unreachable;
    }
}