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
|
// MIR for `range_loop` after PreCodegen
fn range_loop(_1: &[T], _2: impl Fn(usize, &T)) -> () {
debug slice => _1;
debug f => _2;
let mut _0: ();
let mut _3: usize;
let mut _4: std::ops::Range<usize>;
let mut _5: std::ops::Range<usize>;
let mut _9: std::option::Option<usize>;
let mut _12: isize;
let mut _14: usize;
let mut _15: bool;
let mut _17: &impl Fn(usize, &T);
let mut _18: (usize, &T);
let _19: ();
let mut _20: &mut std::ops::Range<usize>;
scope 1 {
debug iter => _5;
let _13: usize;
scope 2 {
debug i => _13;
let _16: &T;
scope 3 {
debug x => _16;
}
}
scope 5 (inlined iter::range::<impl Iterator for std::ops::Range<usize>>::next) {
debug self => _20;
scope 6 (inlined <std::ops::Range<usize> as iter::range::RangeIteratorImpl>::spec_next) {
debug self => _20;
let mut _8: bool;
let _10: usize;
let mut _11: usize;
let mut _21: &usize;
let mut _22: &usize;
scope 7 {
debug old => _10;
scope 8 {
}
}
scope 9 (inlined cmp::impls::<impl PartialOrd for usize>::lt) {
debug self => _21;
debug other => _22;
let mut _6: usize;
let mut _7: usize;
}
}
}
}
scope 4 (inlined <std::ops::Range<usize> as IntoIterator>::into_iter) {
debug self => _4;
}
bb0: {
StorageLive(_3);
_3 = Len((*_1));
_4 = std::ops::Range::<usize> { start: const 0_usize, end: move _3 };
StorageDead(_3);
StorageLive(_5);
_5 = move _4;
goto -> bb1;
}
bb1: {
StorageLive(_9);
StorageLive(_10);
StorageLive(_8);
StorageLive(_21);
StorageLive(_22);
StorageLive(_6);
_6 = (_5.0: usize);
StorageLive(_7);
_7 = (_5.1: usize);
_8 = Lt(move _6, move _7);
StorageDead(_7);
StorageDead(_6);
StorageDead(_22);
StorageDead(_21);
switchInt(move _8) -> [0: bb2, otherwise: bb3];
}
bb2: {
_9 = Option::<usize>::None;
goto -> bb5;
}
bb3: {
_10 = (_5.0: usize);
StorageLive(_11);
_11 = <usize as Step>::forward_unchecked(_10, const 1_usize) -> [return: bb4, unwind: bb12];
}
bb4: {
(_5.0: usize) = move _11;
StorageDead(_11);
_9 = Option::<usize>::Some(_10);
goto -> bb5;
}
bb5: {
StorageDead(_8);
StorageDead(_10);
_12 = discriminant(_9);
switchInt(move _12) -> [0: bb6, 1: bb8, otherwise: bb11];
}
bb6: {
StorageDead(_9);
StorageDead(_5);
drop(_2) -> [return: bb7, unwind continue];
}
bb7: {
return;
}
bb8: {
_13 = ((_9 as Some).0: usize);
_14 = Len((*_1));
_15 = Lt(_13, _14);
assert(move _15, "index out of bounds: the length is {} but the index is {}", move _14, _13) -> [success: bb9, unwind: bb12];
}
bb9: {
_16 = &(*_1)[_13];
StorageLive(_17);
_17 = &_2;
StorageLive(_18);
_18 = (_13, _16);
_19 = <impl Fn(usize, &T) as Fn<(usize, &T)>>::call(move _17, move _18) -> [return: bb10, unwind: bb12];
}
bb10: {
StorageDead(_18);
StorageDead(_17);
StorageDead(_9);
goto -> bb1;
}
bb11: {
unreachable;
}
bb12 (cleanup): {
drop(_2) -> [return: bb13, unwind terminate];
}
bb13 (cleanup): {
resume;
}
}
|
