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cjgillotcjgillot
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Remove assignment.
1 parent 3c10cf0 commit e8ac040

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2 files changed

+70
-78
lines changed

2 files changed

+70
-78
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‎tests/mir-opt/copy-prop/issue_107511.main.CopyProp.diff‎

Lines changed: 70 additions & 76 deletions
Original file line numberDiff line numberDiff line change
@@ -4,38 +4,35 @@
44
fn main() -> () {
55
let mut _0: (); // return place in scope 0 at $DIR/issue_107511.rs:+0:11: +0:11
66
let mut _1: i32; // in scope 0 at $DIR/issue_107511.rs:+1:9: +1:16
7-
let _3: (); // in scope 0 at $DIR/issue_107511.rs:+6:5: +8:6
7+
let mut _3: std::ops::Range<usize>; // in scope 0 at $DIR/issue_107511.rs:+6:14: +6:24
88
let mut _4: std::ops::Range<usize>; // in scope 0 at $DIR/issue_107511.rs:+6:14: +6:24
9-
let mut _5: std::ops::Range<usize>; // in scope 0 at $DIR/issue_107511.rs:+6:14: +6:24
10-
let mut _6: usize; // in scope 0 at $DIR/issue_107511.rs:+6:17: +6:24
11-
let mut _7: &[i32]; // in scope 0 at $DIR/issue_107511.rs:+6:17: +6:24
12-
let mut _8: &[i32; 4]; // in scope 0 at $DIR/issue_107511.rs:+6:17: +6:24
13-
let mut _10: (); // in scope 0 at $DIR/issue_107511.rs:+0:1: +11:2
14-
let _11: (); // in scope 0 at $DIR/issue_107511.rs:+6:14: +6:24
15-
let mut _12: std::option::Option<usize>; // in scope 0 at $DIR/issue_107511.rs:+6:14: +6:24
9+
let mut _5: usize; // in scope 0 at $DIR/issue_107511.rs:+6:17: +6:24
10+
let mut _6: &[i32]; // in scope 0 at $DIR/issue_107511.rs:+6:17: +6:24
11+
let mut _7: &[i32; 4]; // in scope 0 at $DIR/issue_107511.rs:+6:17: +6:24
12+
let mut _9: (); // in scope 0 at $DIR/issue_107511.rs:+0:1: +9:2
13+
let _10: (); // in scope 0 at $DIR/issue_107511.rs:+6:14: +6:24
14+
let mut _11: std::option::Option<usize>; // in scope 0 at $DIR/issue_107511.rs:+6:14: +6:24
15+
let mut _12: &mut std::ops::Range<usize>; // in scope 0 at $DIR/issue_107511.rs:+6:14: +6:24
1616
let mut _13: &mut std::ops::Range<usize>; // in scope 0 at $DIR/issue_107511.rs:+6:14: +6:24
17-
let mut _14: &mut std::ops::Range<usize>; // in scope 0 at $DIR/issue_107511.rs:+6:14: +6:24
18-
let mut _15: isize; // in scope 0 at $DIR/issue_107511.rs:+6:5: +8:6
19-
let mut _16: !; // in scope 0 at $DIR/issue_107511.rs:+6:5: +8:6
20-
let mut _18: i32; // in scope 0 at $DIR/issue_107511.rs:+7:16: +7:20
21-
let _19: usize; // in scope 0 at $DIR/issue_107511.rs:+7:18: +7:19
22-
let mut _20: usize; // in scope 0 at $DIR/issue_107511.rs:+7:16: +7:20
23-
let mut _21: bool; // in scope 0 at $DIR/issue_107511.rs:+7:16: +7:20
17+
let mut _14: isize; // in scope 0 at $DIR/issue_107511.rs:+6:5: +8:6
18+
let mut _15: !; // in scope 0 at $DIR/issue_107511.rs:+6:5: +8:6
19+
let mut _17: i32; // in scope 0 at $DIR/issue_107511.rs:+7:16: +7:20
20+
let _18: usize; // in scope 0 at $DIR/issue_107511.rs:+7:18: +7:19
21+
let mut _19: usize; // in scope 0 at $DIR/issue_107511.rs:+7:16: +7:20
22+
let mut _20: bool; // in scope 0 at $DIR/issue_107511.rs:+7:16: +7:20
2423
scope 1 {
2524
debug sum => _1; // in scope 1 at $DIR/issue_107511.rs:+1:9: +1:16
2625
let _2: [i32; 4]; // in scope 1 at $DIR/issue_107511.rs:+2:9: +2:10
2726
scope 2 {
2827
debug a => _2; // in scope 2 at $DIR/issue_107511.rs:+2:9: +2:10
29-
let mut _9: std::ops::Range<usize>; // in scope 2 at $DIR/issue_107511.rs:+6:14: +6:24
28+
let mut _8: std::ops::Range<usize>; // in scope 2 at $DIR/issue_107511.rs:+6:14: +6:24
3029
scope 3 {
31-
debug iter => _9; // in scope 3 at $DIR/issue_107511.rs:+6:14: +6:24
32-
let _17: usize; // in scope 3 at $DIR/issue_107511.rs:+6:9: +6:10
30+
debug iter => _8; // in scope 3 at $DIR/issue_107511.rs:+6:14: +6:24
31+
let _16: usize; // in scope 3 at $DIR/issue_107511.rs:+6:9: +6:10
3332
scope 4 {
34-
debug i => _17; // in scope 4 at $DIR/issue_107511.rs:+6:9: +6:10
33+
debug i => _16; // in scope 4 at $DIR/issue_107511.rs:+6:9: +6:10
3534
}
3635
}
37-
scope 5 {
38-
}
3936
}
4037
}
4138

@@ -44,102 +41,99 @@
4441
_1 = const 0_i32; // scope 0 at $DIR/issue_107511.rs:+1:19: +1:20
4542
StorageLive(_2); // scope 1 at $DIR/issue_107511.rs:+2:9: +2:10
4643
_2 = [const 0_i32, const 10_i32, const 20_i32, const 30_i32]; // scope 1 at $DIR/issue_107511.rs:+2:13: +2:28
47-
- StorageLive(_3); // scope 2 at $DIR/issue_107511.rs:+6:5: +8:6
44+
StorageLive(_3); // scope 2 at $DIR/issue_107511.rs:+6:14: +6:24
4845
StorageLive(_4); // scope 2 at $DIR/issue_107511.rs:+6:14: +6:24
49-
StorageLive(_5); // scope 2 at $DIR/issue_107511.rs:+6:14: +6:24
46+
StorageLive(_5); // scope 2 at $DIR/issue_107511.rs:+6:17: +6:24
5047
StorageLive(_6); // scope 2 at $DIR/issue_107511.rs:+6:17: +6:24
5148
StorageLive(_7); // scope 2 at $DIR/issue_107511.rs:+6:17: +6:24
52-
StorageLive(_8); // scope 2 at $DIR/issue_107511.rs:+6:17: +6:24
53-
_8 = &_2; // scope 2 at $DIR/issue_107511.rs:+6:17: +6:24
54-
_7 = move _8 as &[i32] (Pointer(Unsize)); // scope 2 at $DIR/issue_107511.rs:+6:17: +6:24
55-
StorageDead(_8); // scope 2 at $DIR/issue_107511.rs:+6:17: +6:18
56-
_6 = core::slice::<impl [i32]>::len(move _7) -> bb1; // scope 2 at $DIR/issue_107511.rs:+6:17: +6:24
49+
_7 = &_2; // scope 2 at $DIR/issue_107511.rs:+6:17: +6:24
50+
_6 = move _7 as &[i32] (Pointer(Unsize)); // scope 2 at $DIR/issue_107511.rs:+6:17: +6:24
51+
StorageDead(_7); // scope 2 at $DIR/issue_107511.rs:+6:17: +6:18
52+
_5 = core::slice::<impl [i32]>::len(move _6) -> bb1; // scope 2 at $DIR/issue_107511.rs:+6:17: +6:24
5753
// mir::Constant
5854
// + span: $DIR/issue_107511.rs:10:19: 10:22
5955
// + literal: Const { ty: for<'a> fn(&'a [i32]) -> usize {core::slice::<impl [i32]>::len}, val: Value(<ZST>) }
6056
}
6157

6258
bb1: {
63-
StorageDead(_7); // scope 2 at $DIR/issue_107511.rs:+6:23: +6:24
64-
Deinit(_5); // scope 2 at $DIR/issue_107511.rs:+6:14: +6:24
65-
(_5.0: usize) = const 0_usize; // scope 2 at $DIR/issue_107511.rs:+6:14: +6:24
66-
(_5.1: usize) = move _6; // scope 2 at $DIR/issue_107511.rs:+6:14: +6:24
6759
StorageDead(_6); // scope 2 at $DIR/issue_107511.rs:+6:23: +6:24
68-
_4 = <std::ops::Range<usize> as IntoIterator>::into_iter(move _5) -> bb2; // scope 2 at $DIR/issue_107511.rs:+6:14: +6:24
60+
Deinit(_4); // scope 2 at $DIR/issue_107511.rs:+6:14: +6:24
61+
(_4.0: usize) = const 0_usize; // scope 2 at $DIR/issue_107511.rs:+6:14: +6:24
62+
(_4.1: usize) = move _5; // scope 2 at $DIR/issue_107511.rs:+6:14: +6:24
63+
StorageDead(_5); // scope 2 at $DIR/issue_107511.rs:+6:23: +6:24
64+
_3 = <std::ops::Range<usize> as IntoIterator>::into_iter(move _4) -> bb2; // scope 2 at $DIR/issue_107511.rs:+6:14: +6:24
6965
// mir::Constant
7066
// + span: $DIR/issue_107511.rs:10:14: 10:24
7167
// + literal: Const { ty: fn(std::ops::Range<usize>) -> <std::ops::Range<usize> as IntoIterator>::IntoIter {<std::ops::Range<usize> as IntoIterator>::into_iter}, val: Value(<ZST>) }
7268
}
7369

7470
bb2: {
75-
StorageDead(_5); // scope 2 at $DIR/issue_107511.rs:+6:23: +6:24
76-
StorageLive(_9); // scope 2 at $DIR/issue_107511.rs:+6:14: +6:24
77-
_9 = move _4; // scope 2 at $DIR/issue_107511.rs:+6:14: +6:24
71+
StorageDead(_4); // scope 2 at $DIR/issue_107511.rs:+6:23: +6:24
72+
StorageLive(_8); // scope 2 at $DIR/issue_107511.rs:+6:14: +6:24
73+
_8 = move _3; // scope 2 at $DIR/issue_107511.rs:+6:14: +6:24
7874
goto -> bb3; // scope 3 at $DIR/issue_107511.rs:+6:5: +8:6
7975
}
8076

8177
bb3: {
82-
- StorageLive(_11); // scope 3 at $DIR/issue_107511.rs:+6:14: +6:24
78+
- StorageLive(_10); // scope 3 at $DIR/issue_107511.rs:+6:14: +6:24
79+
StorageLive(_11); // scope 3 at $DIR/issue_107511.rs:+6:14: +6:24
8380
StorageLive(_12); // scope 3 at $DIR/issue_107511.rs:+6:14: +6:24
8481
StorageLive(_13); // scope 3 at $DIR/issue_107511.rs:+6:14: +6:24
85-
StorageLive(_14); // scope 3 at $DIR/issue_107511.rs:+6:14: +6:24
86-
_14 = &mut _9; // scope 3 at $DIR/issue_107511.rs:+6:14: +6:24
87-
_13 = &mut (*_14); // scope 3 at $DIR/issue_107511.rs:+6:14: +6:24
88-
_12 = <std::ops::Range<usize> as Iterator>::next(move _13) -> bb4; // scope 3 at $DIR/issue_107511.rs:+6:14: +6:24
82+
_13 = &mut _8; // scope 3 at $DIR/issue_107511.rs:+6:14: +6:24
83+
_12 = &mut (*_13); // scope 3 at $DIR/issue_107511.rs:+6:14: +6:24
84+
_11 = <std::ops::Range<usize> as Iterator>::next(move _12) -> bb4; // scope 3 at $DIR/issue_107511.rs:+6:14: +6:24
8985
// mir::Constant
9086
// + span: $DIR/issue_107511.rs:10:14: 10:24
9187
// + literal: Const { ty: for<'a> fn(&'a mut std::ops::Range<usize>) -> Option<<std::ops::Range<usize> as Iterator>::Item> {<std::ops::Range<usize> as Iterator>::next}, val: Value(<ZST>) }
9288
}
9389

9490
bb4: {
95-
StorageDead(_13); // scope 3 at $DIR/issue_107511.rs:+6:23: +6:24
96-
_15 = discriminant(_12); // scope 3 at $DIR/issue_107511.rs:+6:14: +6:24
97-
switchInt(move _15) -> [0: bb7, 1: bb5, otherwise: bb6]; // scope 3 at $DIR/issue_107511.rs:+6:14: +6:24
91+
StorageDead(_12); // scope 3 at $DIR/issue_107511.rs:+6:23: +6:24
92+
_14 = discriminant(_11); // scope 3 at $DIR/issue_107511.rs:+6:14: +6:24
93+
switchInt(move _14) -> [0: bb7, 1: bb5, otherwise: bb6]; // scope 3 at $DIR/issue_107511.rs:+6:14: +6:24
9894
}
9995

10096
bb5: {
101-
- StorageLive(_17); // scope 3 at $DIR/issue_107511.rs:+6:9: +6:10
102-
_17 = ((_12 as Some).0: usize); // scope 3 at $DIR/issue_107511.rs:+6:9: +6:10
103-
StorageLive(_18); // scope 4 at $DIR/issue_107511.rs:+7:16: +7:20
104-
- StorageLive(_19); // scope 4 at $DIR/issue_107511.rs:+7:18: +7:19
105-
- _19 = _17; // scope 4 at $DIR/issue_107511.rs:+7:18: +7:19
106-
_20 = Len(_2); // scope 4 at $DIR/issue_107511.rs:+7:16: +7:20
107-
- _21 = Lt(_19, _20); // scope 4 at $DIR/issue_107511.rs:+7:16: +7:20
108-
- assert(move _21, "index out of bounds: the length is {} but the index is {}", move _20, _19) -> bb8; // scope 4 at $DIR/issue_107511.rs:+7:16: +7:20
109-
+ _21 = Lt(_17, _20); // scope 4 at $DIR/issue_107511.rs:+7:16: +7:20
110-
+ assert(move _21, "index out of bounds: the length is {} but the index is {}", move _20, _17) -> bb8; // scope 4 at $DIR/issue_107511.rs:+7:16: +7:20
97+
- StorageLive(_16); // scope 3 at $DIR/issue_107511.rs:+6:9: +6:10
98+
_16 = ((_11 as Some).0: usize); // scope 3 at $DIR/issue_107511.rs:+6:9: +6:10
99+
StorageLive(_17); // scope 4 at $DIR/issue_107511.rs:+7:16: +7:20
100+
- StorageLive(_18); // scope 4 at $DIR/issue_107511.rs:+7:18: +7:19
101+
- _18 = _16; // scope 4 at $DIR/issue_107511.rs:+7:18: +7:19
102+
_19 = Len(_2); // scope 4 at $DIR/issue_107511.rs:+7:16: +7:20
103+
- _20 = Lt(_18, _19); // scope 4 at $DIR/issue_107511.rs:+7:16: +7:20
104+
- assert(move _20, "index out of bounds: the length is {} but the index is {}", move _19, _18) -> bb8; // scope 4 at $DIR/issue_107511.rs:+7:16: +7:20
105+
+ _20 = Lt(_16, _19); // scope 4 at $DIR/issue_107511.rs:+7:16: +7:20
106+
+ assert(move _20, "index out of bounds: the length is {} but the index is {}", move _19, _16) -> bb8; // scope 4 at $DIR/issue_107511.rs:+7:16: +7:20
111107
}
112108

113109
bb6: {
114110
unreachable; // scope 3 at $DIR/issue_107511.rs:+6:14: +6:24
115111
}
116112

117113
bb7: {
118-
- _3 = const (); // scope 3 at $DIR/issue_107511.rs:+6:5: +8:6
119-
StorageDead(_14); // scope 3 at $DIR/issue_107511.rs:+8:5: +8:6
120-
StorageDead(_12); // scope 3 at $DIR/issue_107511.rs:+8:5: +8:6
121-
- StorageDead(_11); // scope 3 at $DIR/issue_107511.rs:+8:5: +8:6
122-
StorageDead(_9); // scope 2 at $DIR/issue_107511.rs:+8:5: +8:6
123-
StorageDead(_4); // scope 2 at $DIR/issue_107511.rs:+8:5: +8:6
124-
- StorageDead(_3); // scope 2 at $DIR/issue_107511.rs:+8:5: +8:6
125-
_0 = const (); // scope 0 at $DIR/issue_107511.rs:+0:11: +11:2
126-
StorageDead(_2); // scope 1 at $DIR/issue_107511.rs:+11:1: +11:2
127-
StorageDead(_1); // scope 0 at $DIR/issue_107511.rs:+11:1: +11:2
128-
return; // scope 0 at $DIR/issue_107511.rs:+11:2: +11:2
114+
_0 = const (); // scope 3 at $DIR/issue_107511.rs:+6:5: +8:6
115+
StorageDead(_13); // scope 3 at $DIR/issue_107511.rs:+8:5: +8:6
116+
StorageDead(_11); // scope 3 at $DIR/issue_107511.rs:+8:5: +8:6
117+
- StorageDead(_10); // scope 3 at $DIR/issue_107511.rs:+8:5: +8:6
118+
StorageDead(_8); // scope 2 at $DIR/issue_107511.rs:+8:5: +8:6
119+
StorageDead(_3); // scope 2 at $DIR/issue_107511.rs:+8:5: +8:6
120+
StorageDead(_2); // scope 1 at $DIR/issue_107511.rs:+9:1: +9:2
121+
StorageDead(_1); // scope 0 at $DIR/issue_107511.rs:+9:1: +9:2
122+
return; // scope 0 at $DIR/issue_107511.rs:+9:2: +9:2
129123
}
130124

131125
bb8: {
132-
- _18 = _2[_19]; // scope 4 at $DIR/issue_107511.rs:+7:16: +7:20
133-
+ _18 = _2[_17]; // scope 4 at $DIR/issue_107511.rs:+7:16: +7:20
134-
_1 = Add(_1, move _18); // scope 4 at $DIR/issue_107511.rs:+7:9: +7:20
135-
StorageDead(_18); // scope 4 at $DIR/issue_107511.rs:+7:19: +7:20
136-
- StorageDead(_19); // scope 4 at $DIR/issue_107511.rs:+7:20: +7:21
137-
- _11 = const (); // scope 4 at $DIR/issue_107511.rs:+6:25: +8:6
138-
- StorageDead(_17); // scope 3 at $DIR/issue_107511.rs:+8:5: +8:6
139-
StorageDead(_14); // scope 3 at $DIR/issue_107511.rs:+8:5: +8:6
140-
StorageDead(_12); // scope 3 at $DIR/issue_107511.rs:+8:5: +8:6
141-
- StorageDead(_11); // scope 3 at $DIR/issue_107511.rs:+8:5: +8:6
142-
- _10 = const (); // scope 3 at $DIR/issue_107511.rs:+6:5: +8:6
126+
- _17 = _2[_18]; // scope 4 at $DIR/issue_107511.rs:+7:16: +7:20
127+
+ _17 = _2[_16]; // scope 4 at $DIR/issue_107511.rs:+7:16: +7:20
128+
_1 = Add(_1, move _17); // scope 4 at $DIR/issue_107511.rs:+7:9: +7:20
129+
StorageDead(_17); // scope 4 at $DIR/issue_107511.rs:+7:19: +7:20
130+
- StorageDead(_18); // scope 4 at $DIR/issue_107511.rs:+7:20: +7:21
131+
- _10 = const (); // scope 4 at $DIR/issue_107511.rs:+6:25: +8:6
132+
- StorageDead(_16); // scope 3 at $DIR/issue_107511.rs:+8:5: +8:6
133+
StorageDead(_13); // scope 3 at $DIR/issue_107511.rs:+8:5: +8:6
134+
StorageDead(_11); // scope 3 at $DIR/issue_107511.rs:+8:5: +8:6
135+
- StorageDead(_10); // scope 3 at $DIR/issue_107511.rs:+8:5: +8:6
136+
- _9 = const (); // scope 3 at $DIR/issue_107511.rs:+6:5: +8:6
143137
goto -> bb3; // scope 3 at $DIR/issue_107511.rs:+6:5: +8:6
144138
}
145139
}

‎tests/mir-opt/copy-prop/issue_107511.rs‎

Lines changed: 0 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -10,6 +10,4 @@ fn main() {
1010
for i in 0..a.len() {
1111
sum += a[i];
1212
}
13-
14-
let _ = sum;
1513
}

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