/* * Copyright (C) 2013 Apple Inc. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. 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. * * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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. */ #pragma once #if ENABLE(DFG_JIT) #include "CallFrame.h" #include "CodeOrigin.h" namespace JSC { namespace DFG { // Make sure all code on our inline stack is JIT compiled. This is necessary since // we may opt to inline a code block even before it had ever been compiled by the // JIT, but our OSR exit infrastructure currently only works if the target of the // OSR exit is JIT code. This could be changed since there is nothing particularly // hard about doing an OSR exit into the interpreter, but for now this seems to make // sense in that if we're OSR exiting from inlined code of a DFG code block, then // probably it's a good sign that the thing we're exiting into is hot. Even more // interestingly, since the code was inlined, it may never otherwise get JIT // compiled since the act of inlining it may ensure that it otherwise never runs. void prepareCodeOriginForOSRExit(ExecState*, CodeOrigin); } } // namespace JSC::DFG #endif // ENABLE(DFG_JIT)