1 files changed, 8 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/testObjectToNumber.js b/js/src/jit-test/tests/basic/testObjectToNumber.js
new file mode 100644
index 000000000..d6353a6a6
--- /dev/null
+++ b/js/src/jit-test/tests/basic/testObjectToNumber.js
@@ -0,0 +1,8 @@
+function testObjectToNumber() {
+    var o = {valueOf: () => -3};
+    var x = 0;
+    for (var i = 0; i < 10; i++)
+        x -= o;
+    return x;
+}
+assertEq(testObjectToNumber(), 30);