1 files changed, 36 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/cacheir/fun-apply-null-undefined.js b/js/src/jit-test/tests/cacheir/fun-apply-null-undefined.js
new file mode 100644
index 0000000000..b310df577b
--- /dev/null
+++ b/js/src/jit-test/tests/cacheir/fun-apply-null-undefined.js
@@ -0,0 +1,36 @@
+function testBasic() {
+    var thisVal = {};
+    var arr = [1, 2, 3];
+    var f = function() {
+        assertEq(this, thisVal);
+        assertEq(arguments.length, 0);
+        return 456;
+    };
+    for (var i = 0; i < 100; i++) {
+        // Scripted callee.
+        assertEq(f.apply(thisVal), 456);
+        assertEq(f.apply(thisVal), 456);
+        assertEq(f.apply(thisVal, null), 456);
+        assertEq(f.apply(thisVal, undefined), 456);
+
+        // Native callee.
+        assertEq(Math.abs.apply(), NaN);
+        assertEq(Math.abs.apply(null), NaN);
+        assertEq(Math.abs.apply(null, null), NaN);
+        assertEq(Array.prototype.join.apply(arr), "1,2,3");
+        assertEq(Array.prototype.join.apply(arr, null), "1,2,3");
+        assertEq(Array.prototype.join.apply(arr, undefined), "1,2,3");
+    }
+}
+testBasic();
+
+function testUndefinedGuard() {
+    var f = function() { return arguments.length; }
+    var arr = [-5, 5];
+    for (var i = 0; i < 100; i++) {
+        var args = i < 50 ? undefined : arr;
+        assertEq(f.apply(null, args), i < 50 ? 0 : 2);
+        assertEq(Math.abs.apply(null, args), i < 50 ? NaN : 5);
+    }
+}
+testUndefinedGuard();