BFUpdateMoveOnBypass.cc

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/*
    Copyright (c) 2002-2020 Tampere University.
 
    This file is part of TTA-Based Codesign Environment (TCE).
 
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/**
 * @file BFUpdateMoveOnBypass.cc
 *
 * Definition of scheduler operation which updates move to make a bypass.
 *
 * @author Heikki Kultala 2020 (hkultala-no.spam-tuni.fi)
 * @note rating: red
 */
 
#include "BFUpdateMoveOnBypass.hh"
#include "ProgramOperation.hh"
#include "ProgramAnnotation.hh"
#include "Move.hh"
#include "Terminal.hh"
 
using TTAProgram::ProgramAnnotation;
 
bool BFUpdateMoveOnBypass::operator()() {
 
    auto& dm = dst_.move();
    auto& sm = src_.move();
 
    // update the move
    dm.setSource(sm.source().copy());
 
    if (!src_.isSourceOperation()) {
        return true;
    }
 
    ProgramOperationPtr srcOp = src_.sourceOperationPtr();
    srcOp->addOutputNode(dst_);
    dst_.setSourceOperationPtr(srcOp);
 
    // set fu annotations
    for (int j = 0; j < sm.annotationCount(); j++) {
        TTAProgram::ProgramAnnotation anno = sm.annotation(j);
        if (anno.id() == ProgramAnnotation::ANN_ALLOWED_UNIT_SRC) {
            dm.addAnnotation(
                ProgramAnnotation(
                    ProgramAnnotation::ANN_ALLOWED_UNIT_SRC,
                    anno.payload()));
        }
        if (anno.id() ==
            ProgramAnnotation::ANN_CONN_CANDIDATE_UNIT_SRC) {
            dm.addAnnotation(
                ProgramAnnotation(
                    ProgramAnnotation::ANN_CONN_CANDIDATE_UNIT_SRC,
                    anno.payload()));
        }
        if (anno.id() ==
            ProgramAnnotation::ANN_REJECTED_UNIT_SRC) {
            dm.addAnnotation(
                ProgramAnnotation(
                    ProgramAnnotation::ANN_REJECTED_UNIT_SRC,
                    anno.payload()));
        }
    }
    return true;
}
 
void BFUpdateMoveOnBypass::undoOnlyMe() {
        // unset programoperation from bypassed
    if (dst_.isSourceOperation()) {
        ProgramOperation& srcOp = dst_.sourceOperation();
        srcOp.removeOutputNode(dst_);
        dst_.unsetSourceOperation();
 
        // unset fu annotations
        dst_.move().removeAnnotations(
            TTAProgram::ProgramAnnotation::ANN_ALLOWED_UNIT_SRC);
        dst_.move().removeAnnotations(
            TTAProgram::ProgramAnnotation::ANN_CONN_CANDIDATE_UNIT_SRC);
        dst_.move().removeAnnotations(
            TTAProgram::ProgramAnnotation::ANN_REJECTED_UNIT_SRC);
    }
    // do the actual unmerge by returning source to original register.
    dst_.move().setSource(src_.move().destination().copy());
}