зеркало из https://github.com/mozilla/gecko-dev.git
47 строки
1.4 KiB
C++
47 строки
1.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef _COLORING_H_
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#define _COLORING_H_
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#include "Fundamentals.h"
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#include "VirtualRegister.h"
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#include "RegisterAssigner.h"
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#include "Pool.h"
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class FastBitSet;
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class FastBitMatrix;
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class Coloring : public RegisterAssigner
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{
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private:
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Pool& pool;
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protected:
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PRInt32 getLowestSpillCostRegister(FastBitSet& bitset);
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PRUint32* simplify(FastBitMatrix interferenceMatrix, PRUint32* stackPtr);
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bool select(FastBitMatrix& interferenceMatrix, PRUint32* stackBase, PRUint32* stackPtr);
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public:
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Coloring(Pool& p, VirtualRegisterManager& vrMan) : RegisterAssigner(vrMan), pool(p) {}
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virtual bool assignRegisters(FastBitMatrix& interferenceMatrix);
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};
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#endif /* _COLORING_H_ */
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