mirror of https://github.com/rust-lang/rust
32 lines
1.3 KiB
Plaintext
32 lines
1.3 KiB
Plaintext
LL| |#![feature(coverage_attribute)]
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LL| |//@ edition: 2021
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LL| |
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LL| |// Regression test for <https://github.com/rust-lang/rust/issues/122738>.
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LL| |// These code patterns should not trigger an ICE when allocating a physical
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LL| |// counter to a node and also one of its in-edges, because that is allowed
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LL| |// when the node contains a tight loop to itself.
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LL| |
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LL| 1|fn loopy(cond: bool) {
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LL| 1| let true = cond else { loop {} };
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^0
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LL| 1|}
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LL| |
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LL| |// Variant that also has `loop {}` on the success path.
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LL| |// This isn't needed to catch the original ICE, but might help detect regressions.
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LL| 0|fn _loop_either_way(cond: bool) {
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LL| 0| let true = cond else { loop {} };
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LL| 0| loop {}
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LL| |}
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LL| |
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LL| |// Variant using regular `if` instead of let-else.
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LL| |// This doesn't trigger the original ICE, but might help detect regressions.
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LL| 0|fn _if(cond: bool) {
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LL| 0| if cond { loop {} } else { loop {} }
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LL| |}
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LL| |
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LL| |#[coverage(off)]
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LL| |fn main() {
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LL| | loopy(true);
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LL| |}
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