Upgrade to 3.29
Update V8 to 3.29.88.17 and update makefiles to support building on
all the relevant platforms.
Bug: 17370214
Change-Id: Ia3407c157fd8d72a93e23d8318ccaf6ecf77fa4e
diff --git a/test/mjsunit/fast-prototype.js b/test/mjsunit/fast-prototype.js
new file mode 100644
index 0000000..9864761
--- /dev/null
+++ b/test/mjsunit/fast-prototype.js
@@ -0,0 +1,123 @@
+// Copyright 2012 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * 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.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
+// OWNER OR 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.
+
+// Flags: --allow-natives-syntax --expose-gc
+// Flags: --noincremental-marking
+
+// Check that objects that are used for prototypes are in the fast mode.
+
+function Super() {
+}
+
+
+function Sub() {
+}
+
+
+function AddProps(obj) {
+ for (var i = 0; i < 26; i++) {
+ obj["x" + i] = 0;
+ }
+}
+
+
+function DoProtoMagic(proto, set__proto__) {
+ if (set__proto__) {
+ (new Sub()).__proto__ = proto;
+ } else {
+ Sub.prototype = proto;
+ // Need to instantiate Sub to mark .prototype as prototype.
+ new Sub();
+ }
+}
+
+
+function test(use_new, add_first, set__proto__, same_map_as) {
+ var proto = use_new ? new Super() : {};
+
+ // New object is fast.
+ assertTrue(%HasFastProperties(proto));
+
+ if (add_first) {
+ AddProps(proto);
+ // Adding this many properties makes it slow.
+ assertFalse(%HasFastProperties(proto));
+ DoProtoMagic(proto, set__proto__);
+ // Making it a prototype makes it fast again.
+ assertTrue(%HasFastProperties(proto));
+ } else {
+ DoProtoMagic(proto, set__proto__);
+ // Still fast
+ assertTrue(%HasFastProperties(proto));
+ AddProps(proto);
+ if (set__proto__) {
+ // After we add all those properties it went slow mode again :-(
+ assertFalse(%HasFastProperties(proto));
+ } else {
+ // .prototype keeps it fast.
+ assertTrue(%HasFastProperties(proto));
+ }
+ }
+ if (same_map_as && !add_first && set__proto__) {
+ assertTrue(%HaveSameMap(same_map_as, proto));
+ }
+ return proto;
+}
+
+// TODO(mstarzinger): This test fails easily if gc happens at the wrong time.
+gc();
+
+for (var i = 0; i < 4; i++) {
+ var set__proto__ = ((i & 1) != 0);
+ var use_new = ((i & 2) != 0);
+
+ test(use_new, true, set__proto__);
+
+ var last = test(use_new, false, set__proto__);
+ test(use_new, false, set__proto__, last);
+}
+
+
+var x = {a: 1, b: 2, c: 3};
+var o = { __proto__: x };
+assertTrue(%HasFastProperties(x));
+for (key in x) {
+ assertTrue(key == 'a');
+ break;
+}
+delete x.b;
+for (key in x) {
+ assertTrue(key == 'a');
+ break;
+}
+assertFalse(%HasFastProperties(x));
+x.d = 4;
+assertFalse(%HasFastProperties(x));
+for (key in x) {
+ assertTrue(key == 'a');
+ break;
+}