1 files changed, 12 insertions, 0 deletions
diff --git a/tests/ui/layout/unknown-when-ptr-metadata-is-DST.rs b/tests/ui/layout/unknown-when-ptr-metadata-is-DST.rs
new file mode 100644
index 00000000000..973235fe65a
--- /dev/null
+++ b/tests/ui/layout/unknown-when-ptr-metadata-is-DST.rs
@@ -0,0 +1,12 @@
+#![feature(ptr_metadata)]
+#![feature(trivial_bounds)]
+
+fn return_str()
+where
+    str: std::ptr::Pointee<Metadata = str>,
+{
+    [(); { let _a: Option<&str> = None; 0 }];
+    //~^ ERROR evaluation of constant value failed
+}
+
+fn main() {}