Merged r17800, r17801 into 3.21 branch.

test/mjsunit/regress/regress-crbug-319835.js

 // Copyright 2013 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
 
-var o1 = {};
-o1.f1 = function() { return 10; };
-o1.x = 5;
-o1.y = 2;
-var o2 = {};
-o2.x = 5;
-o2.y = 5;
+try {} catch(e) {}  // No need to optimize the top level.
 
-function store(o, v) {
-  o.y = v;
+var size = 0x20000;
+var a = new Float64Array(size);
+var training = new Float64Array(10);
+function store(a, index) {
+  var offset = 0x20000000;
+  for (var i = 0; i < 1; i++) {
+    a[index + offset] = 0xcc;
+  }
 }
 
-store(o2, 0);
-store(o1, 0);
-store(o2, 0);
+store(training, -0x20000000);
+store(training, -0x20000000 + 1);
+store(training, -0x20000000);
+store(training, -0x20000000 + 1);
 %OptimizeFunctionOnNextCall(store);
-store(o1, 10);
-assertEquals(5, o1.x);
-assertEquals(10, o1.y);
+
+// Segfault maybe?
+for (var i = -0x20000000; i < -0x20000000 + size; i++) {
+  store(a, i);
+}