Update V8 to version 4.1.0.21
This is a cherry-pick of all commits up to and including the
4.1.0.21 cherry-pick in Chromium.
Original commit message:
Version 4.1.0.21 (cherry-pick)
Merged 206e9136bde0f2b5ae8cb77afbb1e7833e5bd412
Unlink pages from the space page list after evacuation.
BUG=430201
LOG=N
R=jkummerow@chromium.org
Review URL: https://codereview.chromium.org/953813002
Cr-Commit-Position: refs/branch-heads/4.1@{#22}
Cr-Branched-From: 2e08d2a7aa9d65d269d8c57aba82eb38a8cb0a18-refs/heads/candidates@{#25353}
---
FPIIM-449
Change-Id: I8c23c7bbb70772b4858fe8a47b64fa97ee0d1f8c
diff --git a/test/js-perf-test/Collections/weakmap.js b/test/js-perf-test/Collections/weakmap.js
new file mode 100644
index 0000000..9aa265f
--- /dev/null
+++ b/test/js-perf-test/Collections/weakmap.js
@@ -0,0 +1,79 @@
+// Copyright 2014 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.
+
+
+var MapBenchmark = new BenchmarkSuite('WeakMap', [1000], [
+ new Benchmark('Set', false, false, 0, WeakMapSet, WeakMapSetupBase,
+ WeakMapTearDown),
+ new Benchmark('Has', false, false, 0, WeakMapHas, WeakMapSetup,
+ WeakMapTearDown),
+ new Benchmark('Get', false, false, 0, WeakMapGet, WeakMapSetup,
+ WeakMapTearDown),
+ new Benchmark('Delete', false, false, 0, WeakMapDelete, WeakMapSetup,
+ WeakMapTearDown),
+]);
+
+
+var wm;
+
+
+function WeakMapSetupBase() {
+ SetupObjectKeys();
+ wm = new WeakMap;
+}
+
+
+function WeakMapSetup() {
+ WeakMapSetupBase();
+ WeakMapSet();
+}
+
+
+function WeakMapTearDown() {
+ wm = null;
+}
+
+
+function WeakMapSet() {
+ for (var i = 0; i < N; i++) {
+ wm.set(keys[i], i);
+ }
+}
+
+
+function WeakMapHas() {
+ for (var i = 0; i < N; i++) {
+ if (!wm.has(keys[i])) {
+ throw new Error();
+ }
+ }
+ for (var i = N; i < 2 * N; i++) {
+ if (wm.has(keys[i])) {
+ throw new Error();
+ }
+ }
+}
+
+
+function WeakMapGet() {
+ for (var i = 0; i < N; i++) {
+ if (wm.get(keys[i]) !== i) {
+ throw new Error();
+ }
+ }
+ for (var i = N; i < 2 * N; i++) {
+ if (wm.get(keys[i]) !== undefined) {
+ throw new Error();
+ }
+ }
+}
+
+
+function WeakMapDelete() {
+ // This is run more than once per setup so we will end up deleting items
+ // more than once. Therefore, we do not the return value of delete.
+ for (var i = 0; i < N; i++) {
+ wm.delete(keys[i]);
+ }
+}