mirror of https://github.com/rust-lang/rust
17 lines
454 B
Rust
17 lines
454 B
Rust
//@ run-pass
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/*!
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* This is a regression test for a bug in LLVM, fixed in upstream r179587,
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* where the switch instructions generated for destructuring enums
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* represented with nullable pointers could be misoptimized in some cases.
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*/
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enum List<X> { Nil, Cons(X, #[allow(dead_code)] Box<List<X>>) }
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pub fn main() {
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match List::Cons(10, Box::new(List::Nil)) {
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List::Cons(10, _) => {}
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List::Nil => {}
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_ => panic!()
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}
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}
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