1 files changed, 17 insertions, 0 deletions
diff --git a/gcc/testsuite/gdc.test/compilable/test20661.d b/gcc/testsuite/gdc.test/compilable/test20661.d
new file mode 100644
index 00000000000..c755fa851ac
--- /dev/null
+++ b/gcc/testsuite/gdc.test/compilable/test20661.d
@@ -0,0 +1,17 @@
+// https://issues.dlang.org/show_bug.cgi?id=20661
+
+class Context
+{
+    size_t[const(Key)] aa; /* Error: AA key type Key does not have bool opEquals(ref const Key) const */
+    bool* checkAll;
+}
+
+struct Key
+{
+    Context context;
+    bool opEquals(ref const Key other) @safe const
+    {
+        auto c = context.checkAll;
+        return true;
+    }
+}