// 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 --concurrent-recompilation --no-always-opt if (!%IsConcurrentRecompilationSupported()) { print("Concurrent recompilation is disabled. Skipping this test."); quit(); } function new_object() { var o = {}; o.a = 1; o.b = 2; return o; } function add_field(obj) { // Assign twice to make the field non-constant. obj.c = 0; obj.c = 3; } %PrepareFunctionForOptimization(add_field); var obj1 = new_object(); var obj2 = new_object(); add_field(obj1); add_field(obj2); %DisableOptimizationFinalization(); %OptimizeFunctionOnNextCall(add_field, "concurrent"); var o = new_object(); // Kick off recompilation. add_field(o); // Invalidate transition map after compile graph has been created. %WaitForBackgroundOptimization(); o.c = 2.2; assertUnoptimized(add_field); // Sync with background thread to conclude optimization that bailed out. %FinalizeOptimization(); if (!%IsDictPropertyConstTrackingEnabled()) { // TODO(v8:11457) Currently, we cannot inline property stores if there is a // dictionary mode prototype on the prototype chain. Therefore, if // v8_dict_property_const_tracking is enabled, the optimized code only // contains a call to the IC handler and doesn't get invalidated when the // transition map changes. assertUnoptimized(add_field); } // Clear type info for stress runs. %ClearFunctionFeedback(add_field);