Source/JavaScriptCore/b3/B3TimingScope.cpp

/*
 * 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
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 */

#include "config.h"
#include "B3TimingScope.h"

#if ENABLE(B3_JIT)

#include "B3Common.h"
#include <wtf/CurrentTime.h>
#include <wtf/DataLog.h>

namespace JSC { namespace B3 {

TimingScope::TimingScope(const char* name)
    : m_name(name)
{
    if (shouldMeasurePhaseTiming())
        m_before = monotonicallyIncreasingTimeMS();
}

TimingScope::~TimingScope()
{
    if (shouldMeasurePhaseTiming()) {
        double after = monotonicallyIncreasingTimeMS();
        dataLog("[B3] ", m_name, " took: ", after - m_before, " ms.\n");
    }
}

} } // namespace JSC::B3

#endif // ENABLE(B3_JIT)