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/*
* Copyright (C) 2012, 2013 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 "LazyOperandValueProfile.h"
#include "JSCInlines.h"
namespace JSC {
CompressedLazyOperandValueProfileHolder::CompressedLazyOperandValueProfileHolder() { }
CompressedLazyOperandValueProfileHolder::~CompressedLazyOperandValueProfileHolder() { }
void CompressedLazyOperandValueProfileHolder::computeUpdatedPredictions(const ConcurrentJSLocker& locker)
{
if (!m_data)
return;
for (unsigned i = 0; i < m_data->size(); ++i)
m_data->at(i).computeUpdatedPrediction(locker);
}
LazyOperandValueProfile* CompressedLazyOperandValueProfileHolder::add(
const ConcurrentJSLocker&, const LazyOperandValueProfileKey& key)
{
if (!m_data)
m_data = std::make_unique<LazyOperandValueProfile::List>();
else {
for (unsigned i = 0; i < m_data->size(); ++i) {
if (m_data->at(i).key() == key)
return &m_data->at(i);
}
}
m_data->append(LazyOperandValueProfile(key));
return &m_data->last();
}
LazyOperandValueProfileParser::LazyOperandValueProfileParser() { }
LazyOperandValueProfileParser::~LazyOperandValueProfileParser() { }
void LazyOperandValueProfileParser::initialize(
const ConcurrentJSLocker&, CompressedLazyOperandValueProfileHolder& holder)
{
ASSERT(m_map.isEmpty());
if (!holder.m_data)
return;
LazyOperandValueProfile::List& data = *holder.m_data;
for (unsigned i = 0; i < data.size(); ++i)
m_map.add(data[i].key(), &data[i]);
}
LazyOperandValueProfile* LazyOperandValueProfileParser::getIfPresent(
const LazyOperandValueProfileKey& key) const
{
HashMap<LazyOperandValueProfileKey, LazyOperandValueProfile*>::const_iterator iter =
m_map.find(key);
if (iter == m_map.end())
return 0;
return iter->value;
}
SpeculatedType LazyOperandValueProfileParser::prediction(
const ConcurrentJSLocker& locker, const LazyOperandValueProfileKey& key) const
{
LazyOperandValueProfile* profile = getIfPresent(key);
if (!profile)
return SpecNone;
return profile->computeUpdatedPrediction(locker);
}
} // namespace JSC