TerminalProgramOperation.cc

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/*
    Copyright (c) 2002-2011 Tampere University.
 
    This file is part of TTA-Based Codesign Environment (TCE).
 
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/**
 * @file TerminalProgramOperation.cc
 *
 * Implementation of the TerminalProgramOperation class.
 *
 * @author Pekka Jääskeläinen 2011
 * @note rating: red
 */
 
#include "TerminalProgramOperation.hh"
#include "Instruction.hh"
#include "ProgramOperation.hh"
#include "MoveNode.hh"
#include "Move.hh"
 
using namespace TTAMachine;
 
namespace TTAProgram {
 
/**
 * The constructor.
 *
 * @param po The ProgramOperation to track.
 */
TerminalProgramOperation::TerminalProgramOperation(
    std::shared_ptr<ProgramOperation> po) :
    TerminalInstructionAddress(), po_(po) {
}
 
/**
 * Constructs an incomplete TerminalProgramOperation.
 *
 * This can be used when a TerminalProgramOperation might point to
 * an non-existing PO during builing of the program.
 *
 * @param label A textual label of the target PO. Should be used later
 * to find the correct PO.
 */
TerminalProgramOperation::TerminalProgramOperation(
    TCEString label) : 
    TerminalInstructionAddress(), label_(label) {
}
 
 
/**
 * The destructor.
 */
TerminalProgramOperation::~TerminalProgramOperation() {
}
 
/**
 * Returns the instruction address of the trigger move in the tracked
 * ProgramOperation.
 *
 * Returns 0 in case the target PO is not in a program, thus its address
 * is not known.
 */
Address
TerminalProgramOperation::address() const {
    assert(isAddressKnown());
    return po_->triggeringMove()->move().parent().address();
}
 
bool
TerminalProgramOperation::isAddressKnown() const {
    return isProgramOperationKnown() && 
        po_->triggeringMove() != NULL &&
        po_->triggeringMove()->move().isInInstruction() &&
        po_->triggeringMove()->move().parent().isInProcedure();
}
 
/**
 * Creates an exact copy of the terminal and returns it.
 */
Terminal*
TerminalProgramOperation::copy() const {
    TerminalProgramOperation* newObj = new TerminalProgramOperation(po_);
    newObj->label_ = this->label_;
    return newObj;
}
 
/**
 * Checks if terminals are equal.
 */
bool 
TerminalProgramOperation::equals(const Terminal& other) const {
 
    if (!other.isInstructionAddress()) {
        return false;
    }
    return &dynamic_cast<const TerminalProgramOperation&>(other).po_ == 
        &this->po_;
}
 
}