MachineInfo.hh

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/*
    Copyright (c) 2002-2015 Tampere University.
 
    This file is part of TTA-Based Codesign Environment (TCE).
 
    Permission is hereby granted, free of charge, to any person obtaining a
    copy of this software and associated documentation files (the "Software"),
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    the rights to use, copy, modify, merge, publish, distribute, sublicense,
    and/or sell copies of the Software, and to permit persons to whom the
    Software is furnished to do so, subject to the following conditions:
 
    The above copyright notice and this permission notice shall be included in
    all copies or substantial portions of the Software.
 
    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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/**
 * @file MachineInfo.hh
 *
 * Declaration of MachineInfo class.
 *
 * @author Mikael Lepistö 2008 (mikael.lepisto-no.spam-tut.fi)
 * @author Pekka Jääskeläinen 2014-2015
 * @note rating: red
 */
 
#ifndef TTA_MACHINE_INFO_HH
#define TTA_MACHINE_INFO_HH
 
#include "InstructionTemplate.hh"
#include "CIStringSet.hh"
 
#include <set>
#include <vector>
#include <climits>
 
namespace TTAMachine {
    class AddressSpace;
    class Machine;
    class HWOperation;
    class FUPort;
    class Port;
    class InstructionTemplate;
    class ControlUnit;
    class FunctionUnit;
}
 
class Operand;
class Operation;
 
class MachineInfo {
public:
    typedef TCETools::CIStringSet OperationSet;
    typedef std::vector<const TTAMachine::FUPort*> ConstPortList;
 
    static int maxLatency(const TTAMachine::Machine& mach, TCEString& opName);
    static OperationSet getOpset(
        const TTAMachine::Machine& mach);
    static OperationSet getOpset(
        const TTAMachine::ControlUnit& gcu);
    static ConstPortList getPortBindingsOfOperation(
        const TTAMachine::Machine& mach,
        const std::string& operation);
    static const TTAMachine::FUPort* getBoundPort(
        const TTAMachine::FunctionUnit& fu,
        const std::string& opName, int operandIndex);
    static bool supportsOperation(
        const TTAMachine::Machine& mach, TCEString operation);
    static TTAMachine::AddressSpace* defaultDataAddressSpace(
        const TTAMachine::Machine& mach);
    static int longestGuardLatency(
        const TTAMachine::Machine& mach);
    static Operand& operandFromPort(
        const TTAMachine::HWOperation& hwOp,
        const TTAMachine::FUPort& port);
    static int maxMemoryAlignment(
        const TTAMachine::Machine &mach);
    static bool templatesUsesSlot(
        const TTAMachine::Machine& mach,
        const std::string& slotName);
    static std::set<TTAMachine::InstructionTemplate*> templatesUsingSlot(
        const TTAMachine::Machine& mach,
        const std::string& slotName);
    static bool canEncodeImmediateInteger(
        const TTAMachine::Machine& mach, int64_t imm,
        unsigned destWidth=UINT_MAX);
    static bool canEncodeImmediateInteger(
        const TTAMachine::InstructionTemplate& temp,
        int64_t imm, unsigned destWidth=UINT_MAX);
    static int triggerIndex(
        const TTAMachine::Machine& machine, const Operation& op);
    static int triggerIndex(
        const TTAMachine::FunctionUnit& fu, const Operation& op);
    static bool canEncodeImmediateInteger(
        const TTAMachine::Bus& bus, int64_t imm, unsigned destWidth=UINT_MAX);
    static unsigned findWidestOperand(
        const TTAMachine::Machine& machine, bool vector) ;
    static unsigned numberOfRegisters(
        const TTAMachine::Machine& machine, unsigned width);
    static bool supportsBoolRegisterGuardedJumps(const TTAMachine::Machine& machine);
    static bool supportsPortGuardedJumps(const TTAMachine::Machine& machine);
    static bool supportsPortGuardedJump(
        const TTAMachine::Machine& machine, bool inverted, const TCEString& opName);
 
    static std::vector<const TTAMachine::FunctionUnit*> findLockUnits(
        const TTAMachine::Machine& machine);
    static Operation& osalOperation(const TTAMachine::HWOperation& hwOp);
 
private:
    MachineInfo();
    template<typename PortType>
    static PortType& portFromOperand(
        const TTAMachine::HWOperation& hwOp,
        const TTAMachine::FUPort& port);
 
    static const TCEString LOCK_READ_;
    static const TCEString TRY_LOCK_ADDR_;
    static const TCEString UNLOCK_ADDR_;
};
 
 
 
#endif