v8/test/mjsunit/keyed-named-access.js

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// 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.
// Flags: --allow-natives-syntax
var k = "x";
var o1 = {x: 10};
var o2 = {x: 11, y: 20};
var o3 = {x: 12, y: 20, z: 100};
function f(o) {
var result = 0;
for (var i = 0; i < 100; i++) {
result += o[k];
}
return result;
}
%PrepareFunctionForOptimization(f);
f(o1);
f(o1);
f(o1);
%OptimizeFunctionOnNextCall(f);
assertEquals(1000, f(o1));
%PrepareFunctionForOptimization(f);
f(o2);
f(o2);
f(o2);
%OptimizeFunctionOnNextCall(f);
assertEquals(1100, f(o2));
%PrepareFunctionForOptimization(f);
f(o3);
f(o3);
f(o3);
%OptimizeFunctionOnNextCall(f);
assertEquals(1200, f(o3));
(function CountOperationDeoptimizationGetter() {
var global = {};
global.__defineGetter__("A", function () { return "x"; });
function h() {
return "A";
}
function g(a, b, c) {
try {
return a + b.toString() + c;
} catch (e) { }
}
function test(o) {
return g(1, o[h()]--, 10);
}
%PrepareFunctionForOptimization(test);
test(global);
test(global);
%OptimizeFunctionOnNextCall(test);
print(test(global));
})();
(function CountOperationDeoptimizationPoint() {
function test() {
this[0, ""]--;
}
%PrepareFunctionForOptimization(test);
test();
test();
%OptimizeFunctionOnNextCall(test);
test();
})();