26 lines
872 B
Rust
26 lines
872 B
Rust
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//! The mir-opt added in <https://github.com/rust-lang/rust/pull/128299> unfortunately seems to lead
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//! to a miscompile (reported in <https://github.com/rust-lang/rust/issues/132353>, minimization
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//! reproduced in this test file).
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//@ revisions: release debug
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// Note: it's not strictly cargo's release profile, but any non-zero opt-level was sufficient to
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// reproduce the miscompile.
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//@[release] compile-flags: -C opt-level=1
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//@[debug] compile-flags: -C opt-level=0
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//@ run-pass
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fn pop_min(mut score2head: Vec<Option<usize>>) -> Option<usize> {
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loop {
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if let Some(col) = score2head[0] {
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score2head[0] = None;
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return Some(col);
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}
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}
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}
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fn main() {
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let min = pop_min(vec![Some(1)]);
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println!("min: {:?}", min);
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// panic happened on 1.83.0 beta in release mode but not debug mode.
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let _ = min.unwrap();
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}
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