RegisterQuantityCheck.hh

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/*
    Copyright (c) 2002-2009 Tampere University.
 
    This file is part of TTA-Based Codesign Environment (TCE).
 
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    copy of this software and associated documentation files (the "Software"),
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/**
 * @file RegisterQuantityCheck.hh
 * 
 * Declaration of RegisterQuantityCheck class.
 * 
 * Tests that given machine has enough registers.
 *
 * @author Heikki Kultala (hkultala-no.spam-cs.tut.fi)
 * @note rating: red
 */
 
#ifndef TTA_REGISTER_QUANTITY_CHECK_HH
#define TTA_REGISTER_QUANTITY_CHECK_HH
 
#include "MachineCheck.hh"
#include "FullyConnectedCheck.hh"
 
#include <set>
#include <string>
 
namespace TTAMachine {
    class RegisterFile;
}
 
class RegisterQuantityCheck : public MachineCheck {
public:
    RegisterQuantityCheck();
    virtual ~RegisterQuantityCheck();
 
    virtual bool check(
        const TTAMachine::Machine& mach) const;
    virtual bool check(
        const TTAMachine::Machine& mach, 
        MachineCheckResults& results) const;
 
    bool checkWithIgnore(
        const TTAMachine::Machine& mach, 
        const std::set<std::string>& ignoreRFs) const;
    bool checkWithIgnore(
        const TTAMachine::Machine& mach, 
        MachineCheckResults& results, 
        const std::set<std::string>& ignoreRFs) const;
    
    bool checkIntRegs(const TTAMachine::Machine& mach) const;
    bool canFixIntRegs(const TTAMachine::Machine& mach) const;
    bool fixIntRegs(TTAMachine::Machine& mach) const;
private:
    typedef std::pair<const TTAMachine::RegisterFile*, int> Register;
    void findGuardRegisters(
        const TTAMachine::Machine& mach, 
        std::set<Register>& registers,
        const std::set<std::string>& ignoreRFs) const;
    unsigned int countIntRegisters(
        const TTAMachine::Machine& mach, 
        const std::set<Register>& guardRegs,
        const std::set<std::string>& ignoreRFs) const;
    bool checkPredRegs(
        const unsigned int& regCount,
        MachineCheckResults* results) const;
    unsigned int missingIntRegs(
        const unsigned int& regCount,
        MachineCheckResults* results,
        bool isFullyConnected) const;
 
    FullyConnectedCheck fullyConCheck_;
};
 
#endif