WebKit/Source/JavaScriptCore/runtime/BasicBlockLocation.h at main · WebKit/WebKit · GitHub

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* 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 <JavaScriptCore/CPU.h>

#include <JavaScriptCore/MacroAssembler.h>

#include <wtf/TZoneMalloc.h>

#include <wtf/Vector.h>

namespace JSC {

class CCallHelpers;

class LLIntOffsetsExtractor;

class BasicBlockLocation {

WTF_MAKE_TZONE_ALLOCATED(BasicBlockLocation);

public:

typedef std::pair<int, int> Gap;

BasicBlockLocation(int startOffset = -1, int endOffset = -1);

int startOffset() const { return m_startOffset; }

int endOffset() const { return m_endOffset; }

void setStartOffset(int startOffset) { m_startOffset = startOffset; }

void setEndOffset(int endOffset) { m_endOffset = endOffset; }

bool hasExecuted() const { return m_executionCount > 0; }

size_t executionCount() const { return m_executionCount; }

void insertGap(int, int);

Vector<Gap> getExecutedRanges() const;

JS_EXPORT_PRIVATE void dumpData() const;

#if ENABLE(JIT)

void emitExecuteCode(CCallHelpers&) const;

#endif

private:

friend class LLIntOffsetsExtractor;

int m_startOffset;

int m_endOffset;

Vector<Gap> m_gaps;

UCPURegister m_executionCount;

};

} // namespace JSC

WebKit/Source/JavaScriptCore/runtime/BasicBlockLocation.h at main · WebKit/WebKit · GitHub

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