Upgrade V8 to version 4.9.385.28
https://chromium.googlesource.com/v8/v8/+/4.9.385.28
FPIIM-449
Change-Id: I4b2e74289d4bf3667f2f3dc8aa2e541f63e26eb4
diff --git a/test/mjsunit/compiler/string-length.js b/test/mjsunit/compiler/string-length.js
new file mode 100644
index 0000000..855a1a6
--- /dev/null
+++ b/test/mjsunit/compiler/string-length.js
@@ -0,0 +1,31 @@
+// Copyright 2015 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Flags: --allow-natives-syntax
+
+assertEquals(0, "".length);
+assertEquals(1, "a".length);
+assertEquals(2, ("a" + "b").length);
+
+function id(x) { return x; }
+
+function f1(x) {
+ return x.length;
+}
+assertEquals(0, f1(""));
+assertEquals(1, f1("a"));
+%OptimizeFunctionOnNextCall(f1);
+assertEquals(2, f1("a" + "b"));
+assertEquals(3, f1(id("a") + id("b" + id("c"))))
+
+function f2(x, y, z) {
+ x = x ? "" + y : "" + z;
+ return x.length;
+}
+assertEquals(0, f2(true, "", "a"));
+assertEquals(1, f2(false, "", "a"));
+%OptimizeFunctionOnNextCall(f2);
+assertEquals(0, f2(true, "", "a"));
+assertEquals(1, f2(false, "", "a"));
+assertEquals(3, f2(true, id("a") + id("b" + id("c")), ""));