1 files changed, 28 insertions, 0 deletions
diff --git a/src/test/ui/const-generics/conservative_is_privately_uninhabited_uses_correct_param_env-1.rs b/src/test/ui/const-generics/conservative_is_privately_uninhabited_uses_correct_param_env-1.rs
new file mode 100644
index 000000000..c9e26c302
--- /dev/null
+++ b/src/test/ui/const-generics/conservative_is_privately_uninhabited_uses_correct_param_env-1.rs
@@ -0,0 +1,28 @@
+// run-pass
+#![feature(generic_const_exprs)]
+#![allow(incomplete_features)]
+
+// This tests that the `conservative_is_privately_uninhabited` fn doesn't cause
+// ICEs by trying to evaluate `T::ASSOC` with an incorrect `ParamEnv`.
+
+trait Foo {
+    const ASSOC: usize = 1;
+}
+
+#[allow(unused_tuple_struct_fields)]
+struct Iced<T: Foo>(T, [(); T::ASSOC])
+where
+    [(); T::ASSOC]: ;
+
+impl Foo for u32 {}
+
+fn foo<T: Foo>()
+where
+    [(); T::ASSOC]: ,
+{
+    let _iced: Iced<T> = return;
+}
+
+fn main() {
+    foo::<u32>();
+}