darling-JavaScriptCore/dfg/DFGOSRExitFuzz.h
2017-08-12 09:48:01 -07:00

49 lines
1.8 KiB
C++

/*
* Copyright (C) 2015 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
#include "Options.h"
namespace JSC { namespace DFG {
extern unsigned g_numberOfStaticOSRExitFuzzChecks;
inline bool doOSRExitFuzzing()
{
ASSERT(Options::useOSRExitFuzz());
g_numberOfStaticOSRExitFuzzChecks++;
if (unsigned atStatic = Options::fireOSRExitFuzzAtStatic())
return atStatic == g_numberOfStaticOSRExitFuzzChecks;
return true;
}
// DFG- and FTL-generated code will query this on every speculation.
extern unsigned g_numberOfOSRExitFuzzChecks;
} } // namespace JSC::DFG