softmax_node.h

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#pragma once
 
#include "sdfg/data_flow/library_nodes/math/tensor/reduce_node.h"
 
namespace sdfg {
namespace math {
namespace tensor {
 
inline data_flow::LibraryNodeCode LibraryNodeType_Softmax("ml::Softmax");
 
class SoftmaxNode : public ReduceNode {
public:
    SoftmaxNode(
        size_t element_id,
        const DebugInfo& debug_info,
        const graph::Vertex vertex,
        data_flow::DataFlowGraph& parent,
        const std::vector<symbolic::Expression>& shape,
        const std::vector<int64_t>& axes,
        bool keepdims = false
    );
 
    void validate(const Function& function) const override;
 
    passes::LibNodeExpander::ExpandOutcome expand(passes::LibNodeExpander::ExpandContext& context, Block& block) override;
 
    bool expand_reduction(
        passes::LibNodeExpander::AccessNodeExpand& expansion,
        builder::StructuredSDFGBuilder& builder,
        structured_control_flow::Sequence& body,
        const types::Tensor& input_type,
        const types::Tensor& output_type,
        const data_flow::Subset& input_subset,
        const data_flow::Subset& output_subset
    ) override;
 
    std::string identity(types::PrimitiveType primitive_type) const override {
        return "";
    }
 
    bool supports_integer_types() const override {
        return false;
    }
 
    std::unique_ptr<data_flow::DataFlowNode>
    clone(size_t element_id, const graph::Vertex vertex, data_flow::DataFlowGraph& parent) const override;
};
 
typedef ReduceNodeSerializer<SoftmaxNode> SoftmaxNodeSerializer;
 
} // namespace tensor
} // namespace math
} // namespace sdfg