зеркало из https://github.com/mozilla/pjs.git
52 строки
1.7 KiB
C++
52 строки
1.7 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
*
|
|
* The contents of this file are subject to the Netscape Public License
|
|
* Version 1.0 (the "NPL"); you may not use this file except in
|
|
* compliance with the NPL. You may obtain a copy of the NPL at
|
|
* http://www.mozilla.org/NPL/
|
|
*
|
|
* Software distributed under the NPL is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
|
|
* for the specific language governing rights and limitations under the
|
|
* NPL.
|
|
*
|
|
* The Initial Developer of this code under the NPL is Netscape
|
|
* Communications Corporation. Portions created by Netscape are
|
|
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
|
|
* Reserved.
|
|
*/
|
|
// LinearInstructionScheduler.h
|
|
//
|
|
// Peter DeSantis
|
|
// Scott M. Silver
|
|
|
|
|
|
// General Idea:
|
|
// preserves the src code ordering
|
|
// instructions. It is the result of a topological sort of the control node from each primary
|
|
// root. A primary root is one which is not reachable by any other root in the control node.
|
|
// When there is more than outgoing edge from a node, they are searched in increasing order of
|
|
// their srcLine fields.
|
|
|
|
#ifndef SCHEDULER_H
|
|
#define SCHEDULER_H
|
|
|
|
#include "CodeGenerator.h"
|
|
#include "Vector.h"
|
|
|
|
class LinearInstructionScheduler
|
|
{
|
|
public:
|
|
void schedule(Vector<RootPair>& roots, ControlNode& controlNode);
|
|
|
|
protected:
|
|
void priorityTopoEmit(Instruction* inInstruction, ControlNode& controlNode);
|
|
void renumberCN(Vector<RootPair>& roots, ControlNode& controlNode);
|
|
void renumberPrimitive(Vector<RootPair>& roots, Primitive& p);
|
|
void linearSchedule(Vector<RootPair>& roots, ControlNode& controlNode);
|
|
};
|
|
|
|
#endif //SCHEDULER_H
|
|
|
|
|