зеркало из https://github.com/mozilla/gecko-dev.git
56 строки
1.8 KiB
C++
56 строки
1.8 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
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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// LinearInstructionScheduler.h
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//
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// Peter DeSantis
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// Scott M. Silver
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// General Idea:
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// preserves the src code ordering
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// instructions. It is the result of a topological sort of the control node from each primary
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// root. A primary root is one which is not reachable by any other root in the control node.
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// When there is more than outgoing edge from a node, they are searched in increasing order of
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// their srcLine fields.
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#ifndef SCHEDULER_H
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#define SCHEDULER_H
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#include "CodeGenerator.h"
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#include "Vector.h"
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class LinearInstructionScheduler
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{
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public:
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void schedule(Vector<RootPair>& roots, ControlNode& controlNode);
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protected:
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void priorityTopoEmit(Instruction* inInstruction, ControlNode& controlNode);
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void renumberCN(Vector<RootPair>& roots, ControlNode& controlNode);
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void renumberPrimitive(Vector<RootPair>& roots, Primitive& p);
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void linearSchedule(Vector<RootPair>& roots, ControlNode& controlNode);
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};
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#endif //SCHEDULER_H
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