projects / apple / javascriptcore.git / blame
| Commit | Line | Data |
|---|---|---|
| 6fe7ccc8 A |
1 | /* |
| 2 | * Copyright (C) 2012 Apple Inc. All rights reserved. | |
| 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" | |
| 27 | #include "LazyOperandValueProfile.h" | |
| 28 | ||
| 29 | #if ENABLE(VALUE_PROFILER) | |
| 30 | ||
| 31 | namespace JSC { | |
| 32 | ||
| 33 | CompressedLazyOperandValueProfileHolder::CompressedLazyOperandValueProfileHolder() { } | |
| 34 | CompressedLazyOperandValueProfileHolder::~CompressedLazyOperandValueProfileHolder() { } | |
| 35 | ||
| 36 | void CompressedLazyOperandValueProfileHolder::computeUpdatedPredictions() | |
| 37 | { | |
| 38 | if (!m_data) | |
| 39 | return; | |
| 40 | ||
| 41 | for (unsigned i = 0; i < m_data->size(); ++i) | |
| 42 | m_data->at(i).computeUpdatedPrediction(); | |
| 43 | } | |
| 44 | ||
| 45 | LazyOperandValueProfile* CompressedLazyOperandValueProfileHolder::add( | |
| 46 | const LazyOperandValueProfileKey& key) | |
| 47 | { | |
| 48 | if (!m_data) | |
| 49 | m_data = adoptPtr(new LazyOperandValueProfile::List()); | |
| 50 | else { | |
| 51 | for (unsigned i = 0; i < m_data->size(); ++i) { | |
| 52 | if (m_data->at(i).key() == key) | |
| 53 | return &m_data->at(i); | |
| 54 | } | |
| 55 | } | |
| 56 | ||
| 57 | m_data->append(LazyOperandValueProfile(key)); | |
| 58 | return &m_data->last(); | |
| 59 | } | |
| 60 | ||
| 61 | LazyOperandValueProfileParser::LazyOperandValueProfileParser( | |
| 62 | CompressedLazyOperandValueProfileHolder& holder) | |
| 63 | : m_holder(holder) | |
| 64 | { | |
| 65 | if (!m_holder.m_data) | |
| 66 | return; | |
| 67 | ||
| 68 | LazyOperandValueProfile::List& data = *m_holder.m_data; | |
| 69 | for (unsigned i = 0; i < data.size(); ++i) | |
| 70 | m_map.add(data[i].key(), &data[i]); | |
| 71 | } | |
| 72 | ||
| 73 | LazyOperandValueProfileParser::~LazyOperandValueProfileParser() { } | |
| 74 | ||
| 75 | LazyOperandValueProfile* LazyOperandValueProfileParser::getIfPresent( | |
| 76 | const LazyOperandValueProfileKey& key) const | |
| 77 | { | |
| 78 | HashMap<LazyOperandValueProfileKey, LazyOperandValueProfile*>::const_iterator iter = | |
| 79 | m_map.find(key); | |
| 80 | ||
| 81 | if (iter == m_map.end()) | |
| 82 | return 0; | |
| 83 | ||
| 84 | return iter->second; | |
| 85 | } | |
| 86 | ||
| 87 | PredictedType LazyOperandValueProfileParser::prediction( | |
| 88 | const LazyOperandValueProfileKey& key) const | |
| 89 | { | |
| 90 | LazyOperandValueProfile* profile = getIfPresent(key); | |
| 91 | if (!profile) | |
| 92 | return PredictNone; | |
| 93 | ||
| 94 | return profile->computeUpdatedPrediction(); | |
| 95 | } | |
| 96 | ||
| 97 | } // namespace JSC | |
| 98 | ||
| 99 | #endif // ENABLE(VALUE_PROFILER) | |
| 100 |