A64: Synchronize with r15922.

test/mjsunit/omit-constant-mapcheck.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;
+var g1 = { a:1 }
 
-function store(o, v) {
-  o.y = v;
+function load() {
+  return g1.a;
 }
 
-store(o2, 0);
-store(o1, 0);
-store(o2, 0);
+assertEquals(1, load());
+assertEquals(1, load());
+%OptimizeFunctionOnNextCall(load);
+assertEquals(1, load());
+delete g1.a;
+assertEquals(undefined, load());
+
+var g2 = { a:2 }
+
+function load2() {
+  return g2.a;
+}
+
+assertEquals(2, load2());
+assertEquals(2, load2());
+%OptimizeFunctionOnNextCall(load2);
+assertEquals(2, load2());
+g2.b = 10;
+g2.a = 5;
+assertEquals(5, load2());
+
+var g3 = { a:2, b:9, c:1 }
+
+function store(v) {
+  g3.a = v;
+  return g3.a;
+}
+
+assertEquals(5, store(5));
+assertEquals(8, store(8));
 %OptimizeFunctionOnNextCall(store);
-store(o1, 10);
-assertEquals(5, o1.x);
-assertEquals(10, o1.y);
+assertEquals(10, store(10));
+delete g3.c;
+store(7);
+assertEquals({a:7, b:9}, g3);