1 files changed, 15 insertions, 0 deletions
diff --git a/src/test/ui/symbol-names/verbose.rs b/src/test/ui/symbol-names/verbose.rs
new file mode 100644
index 000000000..e00c592b6
--- /dev/null
+++ b/src/test/ui/symbol-names/verbose.rs
@@ -0,0 +1,15 @@
+// Regression test for issue #57596, where -Zverbose flag unintentionally
+// affected produced symbols making it impossible to link between crates
+// with a different value of the flag (for symbols involving generic
+// arguments equal to defaults of their respective parameters).
+//
+// build-pass
+// compile-flags: -Zverbose
+
+pub fn error(msg: String) -> Box<dyn std::error::Error> {
+  msg.into()
+}
+
+fn main() {
+  error(String::new());
+}