1 files changed, 17 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/debug/bug1191499.js b/js/src/jit-test/tests/debug/bug1191499.js
new file mode 100644
index 000000000..07086c4cb
--- /dev/null
+++ b/js/src/jit-test/tests/debug/bug1191499.js
@@ -0,0 +1,17 @@
+
+setJitCompilerOption('ion.warmup.trigger', 2);
+setJitCompilerOption('offthread-compilation.enable', 0);
+var g = newGlobal();
+var dbg2 = new Debugger;
+g.toggle = function toggle(x, d) {
+  if (d) {
+    dbg2.addDebuggee(g);
+    dbg2.getNewestFrame().environment.getVariable("x");
+  }
+};
+g.eval("" + function f(x, d) { toggle(++arguments, d); });
+g.eval("(" + function test() {
+  for (var i = 0; i < 30; i++)
+    f(42, false);
+  f(42, true);
+} + ")();");