mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
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86 lines
2.7 KiB
C++
86 lines
2.7 KiB
C++
/*
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* Copyright (C) 2015 Apple Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#if ENABLE(B3_JIT)
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#include "B3FrequencyClass.h"
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#include <wtf/PrintStream.h>
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namespace JSC { namespace B3 {
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// A frequented block is a tuple of BasicBlock* and FrequencyClass. It's usually used as a
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// successor edge.
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template<typename BasicBlock>
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class GenericFrequentedBlock {
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public:
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GenericFrequentedBlock(
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BasicBlock* block = nullptr, FrequencyClass frequency = FrequencyClass::Normal)
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: m_block(block)
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, m_frequency(frequency)
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{
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}
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bool operator==(const GenericFrequentedBlock& other) const
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{
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return m_block == other.m_block
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&& m_frequency == other.m_frequency;
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}
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bool operator!=(const GenericFrequentedBlock& other) const
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{
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return !(*this == other);
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}
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explicit operator bool() const
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{
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return *this != GenericFrequentedBlock();
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}
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BasicBlock* block() const { return m_block; }
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BasicBlock*& block() { return m_block; }
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FrequencyClass frequency() const { return m_frequency; }
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FrequencyClass& frequency() { return m_frequency; }
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bool isRare() const { return frequency() == FrequencyClass::Rare; }
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void dump(PrintStream& out) const
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{
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if (frequency() != FrequencyClass::Normal)
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out.print(frequency(), ":");
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out.print(pointerDump(m_block));
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}
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private:
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BasicBlock* m_block;
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FrequencyClass m_frequency;
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};
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} } // namespace JSC::B3
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#endif // ENABLE(B3_JIT)
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