d46ff6415c
Before, the SwitchInt cases were computed in two passes: if the first pass accepted e.g. 0..=5 and then 1, the second pass would not accept 0..=5 anymore because 1 would be listed in the SwitchInt options. Now there's a single pass, so if we sort 0..=5 we must take care to not sort a subsequent 1.
15 lines
461 B
Rust
15 lines
461 B
Rust
//@ run-pass
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//
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// Regression test for match lowering to MIR: when gathering candidates, by the time we get to the
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// range we know the range will only match on the failure case of the switchint. Hence we mustn't
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// add the `1` to the switchint or the range would be incorrectly sorted.
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#![allow(unreachable_patterns)]
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fn main() {
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match 1 {
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10 => unreachable!(),
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0..=5 => {}
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1 => unreachable!(),
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_ => unreachable!(),
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}
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}
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