mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
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49 lines
2.2 KiB
C++
49 lines
2.2 KiB
C++
/*
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* Copyright (C) 2013 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#if ENABLE(DFG_JIT)
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#include "CallFrame.h"
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#include "CodeOrigin.h"
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namespace JSC { namespace DFG {
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// Make sure all code on our inline stack is JIT compiled. This is necessary since
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// we may opt to inline a code block even before it had ever been compiled by the
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// JIT, but our OSR exit infrastructure currently only works if the target of the
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// OSR exit is JIT code. This could be changed since there is nothing particularly
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// hard about doing an OSR exit into the interpreter, but for now this seems to make
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// sense in that if we're OSR exiting from inlined code of a DFG code block, then
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// probably it's a good sign that the thing we're exiting into is hot. Even more
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// interestingly, since the code was inlined, it may never otherwise get JIT
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// compiled since the act of inlining it may ensure that it otherwise never runs.
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void prepareCodeOriginForOSRExit(ExecState*, CodeOrigin);
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} } // namespace JSC::DFG
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#endif // ENABLE(DFG_JIT)
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