1 files changed, 25 insertions, 0 deletions
diff --git a/gcc/testsuite/gdc.test/compilable/test21830.d b/gcc/testsuite/gdc.test/compilable/test21830.d
new file mode 100644
index 00000000000..d1ead010d88
--- /dev/null
+++ b/gcc/testsuite/gdc.test/compilable/test21830.d
@@ -0,0 +1,25 @@
+// REQUIRED_ARGS: -de -unittest
+
+deprecated struct OldS21830 { }
+
+struct NewS21830 { }
+
+static if (1)
+{
+    auto test21830(T)(T t)
+    if (is(T == NewS21830))
+    {
+        return T.init;
+    }
+}
+
+deprecated auto test21830(T)(T t)
+if (is(T == OldS21830))
+{
+    return T.init;
+}
+
+unittest
+{
+    auto b = test21830(NewS21830()); // error here about using test21830!OldS21830
+}