v8: upgrade to v3.20.2

1 files changed, 55 insertions, 0 deletions

diff --git a/deps/v8/test/webkit/dfg-check-two-structures.js b/deps/v8/test/webkit/dfg-check-two-structures.js
new file mode 100644
index 0000000000..b5881ff2d9
--- /dev/null
+++ b/deps/v8/test/webkit/dfg-check-two-structures.js
@@ -0,0 +1,55 @@
+// Copyright 2013 the V8 project authors. All rights reserved.
+// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1.  Redistributions of source code must retain the above copyright
+//     notice, this list of conditions and the following disclaimer.
+// 2.  Redistributions in binary form must reproduce the above copyright
+//     notice, this list of conditions and the following disclaimer in the
+//     documentation and/or other materials provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+// DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+// DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+// LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+description(
+"This tests that a polymorphic structure check is actually executed."
+);
+
+function foo(o, p) {
+    if (o == p)
+        return o.f;
+    else
+        return 75;
+}
+
+var o1 = {f:42, g:43};
+var o2 = {f:44};
+var o3 = {e:45, f:46};
+
+for (var i = 0; i < 200; ++i) {
+    var o;
+    var expected;
+    if (i < 150) {
+        if (i & 1) {
+            o = o1;
+            expected = 42;
+        } else {
+            o = o2;
+            expected = 44;
+        }
+    } else {
+        o = o3;
+        expected = 46;
+    }
+    shouldBe("foo(o, o)", "" + expected);
+}