1 files changed, 19 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/gc/bug-1756590.js b/js/src/jit-test/tests/gc/bug-1756590.js
new file mode 100644
index 0000000000..5a5cadc1d9
--- /dev/null
+++ b/js/src/jit-test/tests/gc/bug-1756590.js
@@ -0,0 +1,19 @@
+// |jit-test| error: Error
+
+function asyncGC(...targets) {
+  var finalizationRegistry = new FinalizationRegistry(() => {});
+  for (let target of targets) {
+    finalizationRegistry.register(target, 'target');
+  }
+  return Promise.resolve('tick').then(() => asyncGCDeref()).then(() => {
+    finalizationRegistry.cleanupSome(name => { names.push(name); });
+  });
+}
+const root = newGlobal({newCompartment: true});
+const dbg = new Debugger();
+dbg.each = asyncGC;
+const wrappedRoot = dbg.each (root)
+gczeal(14,10);
+evaluate(`
+  var StructType = class {};
+`);