blob: b2ea96f033ef03468df09085bd6442e6ac9195ae (
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
|
// MIR for `step_forward` after PreCodegen
fn step_forward(_1: u32, _2: usize) -> u32 {
debug x => _1;
debug n => _2;
let mut _0: u32;
scope 1 (inlined <u32 as Step>::forward) {
debug start => _1;
debug n => _2;
let _3: std::option::Option<u32>;
let mut _6: bool;
let mut _7: u32;
let mut _8: &std::option::Option<u32>;
scope 2 {
}
scope 3 (inlined Option::<u32>::is_none) {
debug self => _8;
let mut _5: bool;
scope 4 (inlined Option::<u32>::is_some) {
debug self => _8;
let mut _4: isize;
}
}
scope 5 (inlined core::num::<impl u32>::wrapping_add) {
debug self => _1;
debug rhs => _7;
}
}
bb0: {
StorageLive(_6);
StorageLive(_8);
StorageLive(_3);
_3 = <u32 as Step>::forward_checked(_1, _2) -> [return: bb1, unwind continue];
}
bb1: {
StorageLive(_5);
_4 = discriminant(_3);
_5 = Eq(_4, const 1_isize);
_6 = Not(move _5);
StorageDead(_5);
StorageDead(_3);
StorageDead(_8);
switchInt(move _6) -> [0: bb3, otherwise: bb2];
}
bb2: {
assert(!const true, "attempt to compute `{} + {}`, which would overflow", const _, const 1_u32) -> [success: bb3, unwind continue];
}
bb3: {
StorageDead(_6);
StorageLive(_7);
_7 = _2 as u32 (IntToInt);
_0 = Add(_1, _7);
StorageDead(_7);
return;
}
}
|
