1 files changed, 14 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/ion/bug911369.js b/js/src/jit-test/tests/ion/bug911369.js
new file mode 100644
index 000000000..90240b29c
--- /dev/null
+++ b/js/src/jit-test/tests/ion/bug911369.js
@@ -0,0 +1,14 @@
+var a = [];
+var count = 0;
+a.valueOf = function() {
+    ++count;
+}
+function f(a) {
+    6 - a;
+}
+
+f(3);
+for (var i=0; i<10; i++)
+    f(a);
+
+assertEq(count, 10);