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1| |#![feature(or_patterns)]
2| |
3| 1|fn main() {
4| 1| // Initialize test constants in a way that cannot be determined at compile time, to ensure
5| 1| // rustc and LLVM cannot optimize out statements (or coverage counters) downstream from
6| 1| // dependent conditions.
7| 1| let is_true = std::env::args().len() == 1;
8| 1|
9| 1| let mut a: u8 = 0;
10| 1| let mut b: u8 = 0;
11| 1| if is_true {
12| 1| a = 2;
13| 1| b = 0;
14| 1| }
^0
15| 1| match (a, b) {
16| | // Or patterns generate MIR `SwitchInt` with multiple targets to the same `BasicBlock`.
17| | // This test confirms a fix for Issue #79569.
18| 0| (0 | 1, 2 | 3) => {}
19| 1| _ => {}
20| | }
21| 1| if is_true {
22| 1| a = 0;
23| 1| b = 0;
24| 1| }
^0
25| 1| match (a, b) {
26| 0| (0 | 1, 2 | 3) => {}
27| 1| _ => {}
28| | }
29| 1| if is_true {
30| 1| a = 2;
31| 1| b = 2;
32| 1| }
^0
33| 1| match (a, b) {
34| 0| (0 | 1, 2 | 3) => {}
35| 1| _ => {}
36| | }
37| 1| if is_true {
38| 1| a = 0;
39| 1| b = 2;
40| 1| }
^0
41| 1| match (a, b) {
42| 1| (0 | 1, 2 | 3) => {}
43| 0| _ => {}
44| | }
45| 1|}
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