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Edit File: regress-1167.js
// 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 // Deoptimization after a logical not in an effect context should not see a // value for the logical not expression. function test0(n) { var a = new Array(n); for (var i = 0; i < n; ++i) { // ~ of a non-numeric value is used to trigger deoptimization. a[i] = void(!(delete 'object')) % ~(delete 4); } } // OSR (after deoptimization) is used to observe the stack height mismatch. for (var i = 0; i < 5; ++i) { for (var j = 1; j < 12; ++j) { test0(j * 1000); } } // Similar test with a different subexpression of unary !. function test1(n) { var a = new Array(n); for (var i = 0; i < n; ++i) { a[i] = void(!(- 'object')) % ~(delete 4); } } for (i = 0; i < 5; ++i) { for (j = 1; j < 12; ++j) { test1(j * 1000); } } // A similar issue, different subexpression of unary ! (e0 !== e1 is // translated into !(e0 == e1)) and different effect context. function side_effect() { } function observe(x, y) { return x; } function test2(x) { return observe(this, (((side_effect.observe <= side_effect.side_effect) !== false), x + 1)); } for (var i = 0; i < 5; ++i) test2(0); %OptimizeFunctionOnNextCall(test2); test2(0); test2(test2);