1 files changed, 33 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/class/superElemMegamorphic.js b/js/src/jit-test/tests/class/superElemMegamorphic.js
new file mode 100644
index 0000000000..8601cc472a
--- /dev/null
+++ b/js/src/jit-test/tests/class/superElemMegamorphic.js
@@ -0,0 +1,33 @@
+class C { };
+C.prototype.a = "a";
+C.prototype.b = "b";
+C.prototype.c = "c";
+C.prototype.d = "d";
+C.prototype.e = "e";
+C.prototype.f = "f";
+C.prototype.g = "g";
+C.prototype.h = "h";
+C.prototype.i = "i";
+C.prototype.j = "j";
+C.prototype.k = "k";
+C.prototype.l = "l";
+C.prototype.m = "m";
+C.prototype.n = "n";
+C.prototype.o = "o";
+C.prototype.p = "p";
+C.prototype.q = "q";
+C.prototype.r = "r";
+
+class D extends C {
+    foo(p) {
+        return super[p];
+    }
+}
+
+var d = new D();
+
+for (let i = 0; i < 20; ++i) {
+    for (let p in C.prototype) {
+        assertEq(p, d.foo(p));
+    }
+}