blob: 94c7967215c1b30a3a62864bb8d9fffb3a531c70 (
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
|
LL| 1|fn main() {
LL| 1| // Initialize test constants in a way that cannot be determined at compile time, to ensure
LL| 1| // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
LL| 1| // dependent conditions.
LL| 1| let is_true = std::env::args().len() == 1;
LL| 1|
LL| 1| let mut a: u8 = 0;
LL| 1| let mut b: u8 = 0;
LL| 1| if is_true {
LL| 1| a = 2;
LL| 1| b = 0;
LL| 1| }
^0
LL| 1| match (a, b) {
LL| | // Or patterns generate MIR `SwitchInt` with multiple targets to the same `BasicBlock`.
LL| | // This test confirms a fix for Issue #79569.
LL| 0| (0 | 1, 2 | 3) => {}
LL| 1| _ => {}
LL| | }
LL| 1| if is_true {
LL| 1| a = 0;
LL| 1| b = 0;
LL| 1| }
^0
LL| 1| match (a, b) {
LL| 0| (0 | 1, 2 | 3) => {}
LL| 1| _ => {}
LL| | }
LL| 1| if is_true {
LL| 1| a = 2;
LL| 1| b = 2;
LL| 1| }
^0
LL| 1| match (a, b) {
LL| 0| (0 | 1, 2 | 3) => {}
LL| 1| _ => {}
LL| | }
LL| 1| if is_true {
LL| 1| a = 0;
LL| 1| b = 2;
LL| 1| }
^0
LL| 1| match (a, b) {
LL| 1| (0 | 1, 2 | 3) => {}
LL| 0| _ => {}
LL| | }
LL| 1|}
|
