1 files changed, 16 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/gc/bug-1820543.js b/js/src/jit-test/tests/gc/bug-1820543.js
new file mode 100644
index 0000000000..0ef5f9915e
--- /dev/null
+++ b/js/src/jit-test/tests/gc/bug-1820543.js
@@ -0,0 +1,16 @@
+gczeal(0);
+
+const v1 = ("DEB1").startsWith("DEB1");
+function f2(a3, a4, a5, a6) {
+    return ({"constructor":this,"b":a3,"__proto__":this}).newGlobal(f2);
+}
+f2.newCompartment = v1;
+with (f2()) {
+    function f11(a12, a13) {
+        return "DEB1";
+    }
+    const v15 = new FinalizationRegistry(f11);
+    v15.register(f2);
+}
+this.reportLargeAllocationFailure();
+gc()