1 files changed, 21 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/bug1330491.js b/js/src/jit-test/tests/debug/bug1330491.js
new file mode 100644
index 0000000000..7fff829ab0
--- /dev/null
+++ b/js/src/jit-test/tests/debug/bug1330491.js
@@ -0,0 +1,21 @@
+// |jit-test| test-also=--wasm-compiler=optimizing; error: TestComplete
+
+if (!wasmDebuggingEnabled())
+     throw "TestComplete";
+
+(function createShortLivedDebugger() {
+    var g = newGlobal({newCompartment: true});
+    g.debuggeeGlobal = this;
+    g.eval("(" + function () {
+        dbg = new Debugger(debuggeeGlobal);
+    } + ")();");
+})();
+
+let module = new WebAssembly.Module(wasmTextToBinary('(module (func))'));
+new WebAssembly.Instance(module);
+
+gcslice(1000000);
+
+new WebAssembly.Instance(module);
+
+throw "TestComplete";