1 files changed, 11 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/basic/testBug558446.js b/js/src/jit-test/tests/basic/testBug558446.js
new file mode 100644
index 0000000..91c0187
--- /dev/null
+++ b/js/src/jit-test/tests/basic/testBug558446.js
@@ -0,0 +1,11 @@
+function f(a, b) { return a + " " + b; }
+
+for (var i = 0; i < 10; ++i) {
+    var s = '';
+    var a = {toString: function () { s += 'a'; return 'a'; }};
+    var b = {toString: function () { s += 'b'; return 'b'; }};
+    f(a, b);
+    assertEq(s, 'ab');
+}
+
+checkStats({ traceTriggered:1 });