hsigmoid_fusion.hpp

// Copyright (C) 2018-2021 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
//
 
#pragma once
 
#include <memory>
#include <utility>
 
#include <transformations_visibility.hpp>
#include <ngraph/pass/graph_rewrite.hpp>
 
namespace ngraph {
namespace pass {
 
class TRANSFORMATIONS_API HSigmoidFusion;
class TRANSFORMATIONS_API HSigmoidFusionWithReluDiv;
class TRANSFORMATIONS_API HSigmoidFusionWithReluMul;
class TRANSFORMATIONS_API HSigmoidFusionWithoutRelu;
class TRANSFORMATIONS_API HSigmoidFusionWithClamp;
 
}  // namespace pass
}  // namespace ngraph
 
/**
 * @ingroup ie_transformation_common_api
 * @brief HSigmoidFusion transformation replaces a sub-graph (x * (min(Relu(x + 3), 6))) / 6 with a HSigmoid op.
 */
class ngraph::pass::HSigmoidFusionWithReluDiv: public ngraph::pass::MatcherPass {
public:
    NGRAPH_RTTI_DECLARATION;
    HSigmoidFusionWithReluDiv();
};
 
/**
 * @ingroup ie_transformation_common_api
 * @brief HSigmoidFusion transformation replaces a sub-graph (x * (min(Relu(x + 3), 6)) * const(1/6) with a HSigmoid op.
 */
class ngraph::pass::HSigmoidFusionWithReluMul: public ngraph::pass::MatcherPass {
public:
    NGRAPH_RTTI_DECLARATION;
    HSigmoidFusionWithReluMul();
};
 
/**
 * @ingroup ie_transformation_common_api
 * @brief HSigmoidFusion transformation replaces a sub-graph x * (min(max(x + 3, 0), 6) / 6) with a HSigmoid op.
 */
class ngraph::pass::HSigmoidFusionWithoutRelu: public ngraph::pass::MatcherPass {
public:
    NGRAPH_RTTI_DECLARATION;
    HSigmoidFusionWithoutRelu();
};
 
/**
 * @ingroup ie_transformation_common_api
 * @brief HSigmoidFusion transformation replaces a sub-graph x * (Clamp(x + 3, 0, 6) * const(1/6)) with a HSigmoid op.
 */
class ngraph::pass::HSigmoidFusionWithClamp: public ngraph::pass::MatcherPass {
public:
    NGRAPH_RTTI_DECLARATION;
    HSigmoidFusionWithClamp();
};
 
/**
 * @ingroup ie_transformation_common_api
 * @brief HSigmoidFusion transformation replaces various sub-graphs with a HSigmoid op.
 */
class ngraph::pass::HSigmoidFusion: public ngraph::pass::GraphRewrite {
public:
    NGRAPH_RTTI_DECLARATION;
    HSigmoidFusion() {
        add_matcher<ngraph::pass::HSigmoidFusionWithReluDiv>();
        add_matcher<ngraph::pass::HSigmoidFusionWithReluMul>();
        add_matcher<ngraph::pass::HSigmoidFusionWithoutRelu>();
        add_matcher<ngraph::pass::HSigmoidFusionWithClamp>();
    }
};