31 lines
729 B
Rust
31 lines
729 B
Rust
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// This is a regression test for issue rust-lang/rust#69841, which exposed an
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// LLVM bug which needed a fix to be backported.
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//@ run-pass
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fn main() {
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let buffer = [49u8, 10];
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let mut a : u64 = 0;
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'read: loop {
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for c in &buffer {
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match c {
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48..=57 => {
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a*= 10;
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a+= *c as u64 - 48;
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}
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10 => {
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break 'read;
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}
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_ => {
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unsafe { std::hint::unreachable_unchecked() };
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}
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}
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}
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}
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if a == 1 {
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println!("What did you expect?");
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} else {
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panic!("this should be unreachable.");
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}
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}
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