LL| |#![feature(or_patterns)] | |
LL| | | |
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|} | |