1 files changed, 21 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/gc/bug1600017.js b/js/src/jit-test/tests/gc/bug1600017.js
new file mode 100644
index 0000000000..c7a748009f
--- /dev/null
+++ b/js/src/jit-test/tests/gc/bug1600017.js
@@ -0,0 +1,21 @@
+var registry = new FinalizationRegistry(x => {
+  if (target1 === null) {
+      return;
+  }
+
+  target1 = null;
+
+  gc();
+
+  print("targets:", [...x]); // consume
+});
+
+var target1 = {};
+registry.register(target1, "target1");
+
+var target2 = {};
+registry.register(target2, "target2");
+
+target2 = null;
+
+gc();