1 files changed, 54 insertions, 0 deletions
diff --git a/third_party/webkit/PerformanceTests/ARES-6/Basic/random.js b/third_party/webkit/PerformanceTests/ARES-6/Basic/random.js
new file mode 100644
index 0000000000..d940c0e381
--- /dev/null
+++ b/third_party/webkit/PerformanceTests/ARES-6/Basic/random.js
@@ -0,0 +1,54 @@
+// Copyright 2013 the V8 project authors. All rights reserved.
+// Copyright (C) 2015-2016 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:
+//
+//     * 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.
+"use strict";
+
+// This is based on Octane's RNG.
+function createRNG(seed)
+{
+    return function() {
+        // Robert Jenkins' 32 bit integer hash function.
+        seed = ((seed + 0x7ed55d16) + (seed << 12))  & 0xffffffff;
+        seed = ((seed ^ 0xc761c23c) ^ (seed >>> 19)) & 0xffffffff;
+        seed = ((seed + 0x165667b1) + (seed << 5))   & 0xffffffff;
+        seed = ((seed + 0xd3a2646c) ^ (seed << 9))   & 0xffffffff;
+        seed = ((seed + 0xfd7046c5) + (seed << 3))   & 0xffffffff;
+        seed = ((seed ^ 0xb55a4f09) ^ (seed >>> 16)) & 0xffffffff;
+        return (seed & 0xfffffff) / 0x10000000;
+    };
+}
+
+function createRNGWithFixedSeed()
+{
+    // This uses Octane's initial seed.
+    return createRNG(49734321);
+}
+
+function createRNGWithRandomSeed()
+{
+    return createRNG((Math.random() * 4294967296) | 0);
+}