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/*
* Copyright (C) 2017-2023 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.
*/
#pragma once
#if ENABLE(B3_JIT)
#include "AirBasicBlock.h"
#include "AirCode.h"
#include <wtf/IndexMap.h>
#include <wtf/IndexSet.h>
#include <wtf/TZoneMalloc.h>
namespace JSC { namespace B3 { namespace Air {
class CFG {
WTF_MAKE_NONCOPYABLE(CFG);
WTF_MAKE_TZONE_ALLOCATED(CFG);
public:
typedef BasicBlock* Node;
typedef IndexSet<BasicBlock*> Set;
template<typename T> using Map = IndexMap<BasicBlock*, T>;
typedef Vector<BasicBlock*, 4> List;
CFG(Code& code)
: m_code(code)
{
}
Node root() { return m_code[0]; }
template<typename T>
Map<T> newMap() { return IndexMap<JSC::B3::Air::BasicBlock*, T>(m_code.size()); }
SuccessorCollection<BasicBlock, BasicBlock::SuccessorList> successors(Node node) { return node->successorBlocks(); }
BasicBlock::PredecessorList& predecessors(Node node) { return node->predecessors(); }
unsigned index(Node node) const { return node->index(); }
Node node(unsigned index) const { return m_code[index]; }
unsigned numNodes() const { return m_code.size(); }
PointerDump<BasicBlock> dump(Node node) const { return pointerDump(node); }
void dump(PrintStream& out) const
{
m_code.dump(out);
}
private:
Code& m_code;
};
} } } // namespace JSC::B3::Air
#endif // ENABLE(B3_JIT)
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