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69 lines
2.3 KiB
C
69 lines
2.3 KiB
C
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//===-- ModuloScheduling.h - Swing Modulo Scheduling------------*- 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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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_MODULOSCHEDULING_H
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#define LLVM_MODULOSCHEDULING_H
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#include "MSchedGraph.h"
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#include "llvm/Function.h"
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#include "llvm/Pass.h"
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#include <set>
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namespace llvm {
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//Struct to contain ModuloScheduling Specific Information for each node
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struct MSNodeAttributes {
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int ASAP; //Earliest time at which the opreation can be scheduled
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int ALAP; //Latest time at which the operation can be scheduled.
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int MOB;
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int depth;
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int height;
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MSNodeAttributes(int asap=-1, int alap=-1, int mob=-1,
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int d=-1, int h=-1) : ASAP(asap), ALAP(alap),
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MOB(mob), depth(d),
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height(h) {}
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};
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class ModuloSchedulingPass : public FunctionPass {
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const TargetMachine ⌖
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//Map that holds node to node attribute information
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std::map<MSchedGraphNode*, MSNodeAttributes> nodeToAttributesMap;
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//Internal functions
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bool MachineBBisValid(const MachineBasicBlock *BI);
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int calculateResMII(const MachineBasicBlock *BI);
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void calculateNodeAttributes(MSchedGraph *graph, int MII);
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void calculateASAP(MSchedGraphNode *node, MSNodeAttributes &attributes,
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int MII,std::set<MSchedGraphNode*> &visitedNodes);
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void calculateALAP(MSchedGraphNode *node, MSNodeAttributes &attributes, int MII,
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int maxASAP, std::set<MSchedGraphNode*> &visitedNodes);
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void calculateHeight(MSchedGraphNode *node,
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MSNodeAttributes &attributes, std::set<MSchedGraphNode*> &visitedNodes);
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void calculateDepth(MSchedGraphNode *node, MSNodeAttributes &attributes,
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std::set<MSchedGraphNode*> &visitedNodes);
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int findMaxASAP();
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void ModuloSchedulingPass::orderNodes();
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void findAllReccurrences(MSchedGraphNode *node, std::vector<MSchedGraphNode*> &visitedNodes);
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public:
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ModuloSchedulingPass(TargetMachine &targ) : target(targ) {}
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virtual bool runOnFunction(Function &F);
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};
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}
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#endif
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