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-rw-r--r--tests/coverage/issue-93054.rs30
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diff --git a/tests/coverage/issue-93054.rs b/tests/coverage/issue-93054.rs
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+#![allow(dead_code, unreachable_code)]
+
+// Regression test for #93054: Functions using uninhabited types often only have a single,
+// unreachable basic block which doesn't get instrumented. This should not cause llvm-cov to fail.
+// Since these kinds functions can't be invoked anyway, it's ok to not have coverage data for them.
+
+// compile-flags: --edition=2021
+
+enum Never {}
+
+impl Never {
+ fn foo(self) {
+ match self {}
+ make().map(|never| match never {});
+ }
+
+ fn bar(&self) {
+ match *self {}
+ }
+}
+
+async fn foo2(never: Never) {
+ match never {}
+}
+
+fn make() -> Option<Never> {
+ None
+}
+
+fn main() {}