// Copyright 2011 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 --always-compact --expose-gc var O = { get f() { return 0; } }; var CODE = []; var R = []; function Allocate4Kb(N) { var arr = []; do {arr.push(new Array(1024));} while (--N > 0); return arr; } function AllocateXMb(X) { return Allocate4Kb((1024 * X) / 4); } function Node(v, next) { this.v = v; this.next = next; } Node.prototype.execute = function (O) { var n = this; while (n.next !== null) n = n.next; n.v(O); }; function LongList(N, x) { if (N == 0) return new Node(x, null); return new Node(new Array(1024), LongList(N - 1, x)); } var L = LongList(1024, function (O) { for (var i = 0; i < 5; i++) O.f; }); function Incremental(O, x) { if (!x) { return; } function CreateCode(i) { var f = new Function("return O.f_" + i); CODE.push(f); f(); // compile f(); // compile f(); // compile } for (var i = 0; i < 1e4; i++) CreateCode(i); gc(); gc(); gc(); print(">>> 1 <<<"); L.execute(O); try {} catch (e) {} L = null; print(">>> 2 <<<"); AllocateXMb(8); //rint("1"); //llocateXMb(8); //rint("1"); //llocateXMb(8); } function foo(O, x) { Incremental(O, x); print('f'); for (var i = 0; i < 5; i++) O.f; print('g'); bar(x); } function bar(x) { if (!x) return; %DeoptimizeFunction(foo); AllocateXMb(8); AllocateXMb(8); } var O1 = {}; var O2 = {}; var O3 = {}; var O4 = {f:0}; foo(O1, false); foo(O2, false); foo(O3, false); %OptimizeFunctionOnNextCall(foo); foo(O4, true);