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