// Copyright 2010 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 --check-elimination function test_empty() { function foo(o) { return { value: o.value }; } %PrepareFunctionForOptimization(foo); function Base() { this.v_ = 5; } Base.prototype.__defineGetter__("value", function() { return 1; }); var a = new Base(); a.a = 1; foo(a); Base.prototype.__defineGetter__("value", function() { return this.v_; }); var b = new Base(); b.b = 1; foo(b); var d = new Base(); d.d = 1; d.value; %OptimizeFunctionOnNextCall(foo); var o = foo(b); } function test_narrow1() { function foo(o) { return { value: o.value }; } %PrepareFunctionForOptimization(foo); function Base() { this.v_ = 5; } Base.prototype.__defineGetter__("value", function() { return 1; }); var a = new Base(); a.a = 1; foo(a); Base.prototype.__defineGetter__("value", function() { return this.v_; }); var b = new Base(); b.b = 1; foo(b); var c = new Base(); c.c = 1; foo(c); var d = new Base(); d.d = 1; d.value; %OptimizeFunctionOnNextCall(foo); var o = foo(b); } function test_narrow2() { function foo(o, flag) { return { value: o.value(flag) }; } %PrepareFunctionForOptimization(foo); function Base() { this.v_ = 5; } Base.prototype.value = function(flag) { return flag ? this.v_ : this.v_; }; var a = new Base(); a.a = 1; foo(a, false); foo(a, false); var b = new Base(); b.b = 1; foo(b, true); var c = new Base(); c.c = 1; foo(c, true); var d = new Base(); d.d = 1; d.value(true); %OptimizeFunctionOnNextCall(foo); var o = foo(b); } test_empty(); test_narrow1(); test_narrow2();