forked from OSchip/llvm-project
73 lines
2.5 KiB
C++
73 lines
2.5 KiB
C++
//===-- MSSchedule.h - Schedule ------- -------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file was developed by the LLVM research group and is distributed under
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// the University of Illinois Open Source License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// The schedule generated by a scheduling algorithm
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_MSSCHEDULE_H
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#define LLVM_MSSCHEDULE_H
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#include "MSchedGraph.h"
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#include <vector>
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#include <set>
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namespace llvm {
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class MSSchedule {
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std::map<int, std::vector<MSchedGraphNode*> > schedule;
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unsigned numIssue;
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//Internal map to keep track of explicit resources
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std::map<int, std::map<int, int> > resourceNumPerCycle;
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//Check if all resources are free
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bool resourcesFree(MSchedGraphNode*, int, int II);
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bool resourceAvailable(int resourceNum, int cycle);
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void useResource(int resourceNum, int cycle);
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//Resulting kernel
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std::vector<std::pair<MachineInstr*, int> > kernel;
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//Max stage count
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int maxStage;
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//add at the right spot in the schedule
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void addToSchedule(int, MSchedGraphNode*);
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public:
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MSSchedule(int num) : numIssue(num) {}
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MSSchedule() : numIssue(4) {}
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bool insert(MSchedGraphNode *node, int cycle, int II);
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int getStartCycle(MSchedGraphNode *node);
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void clear() { schedule.clear(); resourceNumPerCycle.clear(); kernel.clear(); }
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std::vector<std::pair<MachineInstr*, int> >* getKernel() { return &kernel; }
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bool constructKernel(int II, std::vector<MSchedGraphNode*> &branches, std::map<const MachineInstr*, unsigned> &indVar);
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int getMaxStage() { return maxStage; }
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bool defPreviousStage(Value *def, int stage);
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//iterators
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typedef std::map<int, std::vector<MSchedGraphNode*> >::iterator schedule_iterator;
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typedef std::map<int, std::vector<MSchedGraphNode*> >::const_iterator schedule_const_iterator;
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schedule_iterator begin() { return schedule.begin(); };
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schedule_iterator end() { return schedule.end(); };
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void print(std::ostream &os) const;
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typedef std::vector<std::pair<MachineInstr*, int> >::iterator kernel_iterator;
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typedef std::vector<std::pair<MachineInstr*, int> >::const_iterator kernel_const_iterator;
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kernel_iterator kernel_begin() { return kernel.begin(); }
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kernel_iterator kernel_end() { return kernel.end(); }
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};
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}
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#endif
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