[apple/javascriptcore.git] / bytecode / ProfiledCodeBlockJettisoningWatchpoint.cpp

/*
 * Copyright (C) 2013, 2014 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. 
 */

#include "config.h"
#include "ProfiledCodeBlockJettisoningWatchpoint.h"

#if ENABLE(DFG_JIT)

#include "CodeBlock.h"
#include "DFGCommon.h"
#include "DFGExitProfile.h"
#include "JSCInlines.h"

namespace JSC {

void ProfiledCodeBlockJettisoningWatchpoint::fireInternal()
{
    if (DFG::shouldShowDisassembly()) {
        dataLog(
            "Firing profiled watchpoint ", RawPointer(this), " on ", *m_codeBlock, " due to ",
            m_exitKind, " at ", m_codeOrigin, "\n");
    }
    
    // FIXME: Maybe this should call alternative().
    // https://bugs.webkit.org/show_bug.cgi?id=123677
    CodeBlock* machineBaselineCodeBlock = m_codeBlock->baselineAlternative();
    CodeBlock* sourceBaselineCodeBlock =
        baselineCodeBlockForOriginAndBaselineCodeBlock(
            m_codeOrigin, machineBaselineCodeBlock);
    
    if (sourceBaselineCodeBlock) {
        sourceBaselineCodeBlock->addFrequentExitSite(
            DFG::FrequentExitSite(
                m_codeOrigin.bytecodeIndex, m_exitKind,
                exitingJITTypeFor(m_codeBlock->jitType())));
    }
    
    m_codeBlock->jettison(Profiler::JettisonDueToProfiledWatchpoint, CountReoptimization);
    
    if (isOnList())
        remove();
}

} // namespace JSC

#endif // ENABLE(DFG_JIT)
Commit	Line	Data
f9bf01c6	1	/*
81345200	2	* Copyright (C) 2013, 2014 Apple Inc. All rights reserved.
f9bf01c6 A	3	*
	4	* Redistribution and use in source and binary forms, with or without
	5	* modification, are permitted provided that the following conditions
	6	* are met:
	7	* 1. Redistributions of source code must retain the above copyright
	8	* notice, this list of conditions and the following disclaimer.
	9	* 2. Redistributions in binary form must reproduce the above copyright
	10	* notice, this list of conditions and the following disclaimer in the
	11	* documentation and/or other materials provided with the distribution.
	12	*
	13	* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
	14	* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	15	* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
	16	* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
	17	* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
	18	* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
	19	* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
	20	* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
	21	* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	22	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	23	* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	24	*/
	25
	26	#include "config.h"
81345200	27	#include "ProfiledCodeBlockJettisoningWatchpoint.h"
f9bf01c6	28
81345200	29	#if ENABLE(DFG_JIT)
f9bf01c6	30
81345200 A	31	#include "CodeBlock.h"
	32	#include "DFGCommon.h"
	33	#include "DFGExitProfile.h"
	34	#include "JSCInlines.h"
f9bf01c6 A	35
	36	namespace JSC {
	37
81345200	38	void ProfiledCodeBlockJettisoningWatchpoint::fireInternal()
f9bf01c6	39	{
81345200 A	40	if (DFG::shouldShowDisassembly()) {
	41	dataLog(
	42	"Firing profiled watchpoint ", RawPointer(this), " on ", *m_codeBlock, " due to ",
	43	m_exitKind, " at ", m_codeOrigin, "\n");
	44	}
	45
	46	// FIXME: Maybe this should call alternative().
	47	// https://bugs.webkit.org/show_bug.cgi?id=123677
	48	CodeBlock* machineBaselineCodeBlock = m_codeBlock->baselineAlternative();
	49	CodeBlock* sourceBaselineCodeBlock =
	50	baselineCodeBlockForOriginAndBaselineCodeBlock(
	51	m_codeOrigin, machineBaselineCodeBlock);
	52
	53	if (sourceBaselineCodeBlock) {
	54	sourceBaselineCodeBlock->addFrequentExitSite(
	55	DFG::FrequentExitSite(
	56	m_codeOrigin.bytecodeIndex, m_exitKind,
	57	exitingJITTypeFor(m_codeBlock->jitType())));
	58	}
	59
	60	m_codeBlock->jettison(Profiler::JettisonDueToProfiledWatchpoint, CountReoptimization);
	61
93a37866 A	62	if (isOnList())
93a37866 A	63	remove();
f9bf01c6 A	64	}
f9bf01c6 A	65
6fe7ccc8	66	} // namespace JSC
f9bf01c6	67
81345200	68	#endif // ENABLE(DFG_JIT)