// Copyright (C) 2018-2021 Intel Corporation
// SPDX-License-Identifier: Apache-2.0
//

#include "ngraph/op/not_equal.hpp"

#include "itt.hpp"
#include "ngraph/runtime/host_tensor.hpp"
#include "ngraph/runtime/reference/not_equal.hpp"
#include "ngraph/validation_util.hpp"

using namespace std;
using namespace ngraph;

namespace not_equalop {
namespace {
template <element::Type_t ET>
bool evaluate(const HostTensorPtr& arg0,
              const HostTensorPtr& arg1,
              const HostTensorPtr& out,
              const op::AutoBroadcastSpec& broadcast_spec) {
    runtime::reference::not_equal(arg0->get_data_ptr<ET>(),
                                  arg1->get_data_ptr<ET>(),
                                  out->get_data_ptr<element::Type_t::boolean>(),
                                  arg0->get_shape(),
                                  arg1->get_shape(),
                                  broadcast_spec);
    return true;
}

bool evaluate_not_equal(const HostTensorPtr& arg0,
                        const HostTensorPtr& arg1,
                        const HostTensorPtr& out,
                        const op::AutoBroadcastSpec& broadcast_spec) {
    bool rc = true;
    out->set_broadcast(broadcast_spec, arg0, arg1, element::boolean);
    switch (arg0->get_element_type()) {
        NGRAPH_TYPE_CASE(evaluate_not_equal, boolean, arg0, arg1, out, broadcast_spec);
        NGRAPH_TYPE_CASE(evaluate_not_equal, i32, arg0, arg1, out, broadcast_spec);
        NGRAPH_TYPE_CASE(evaluate_not_equal, i64, arg0, arg1, out, broadcast_spec);
        NGRAPH_TYPE_CASE(evaluate_not_equal, u32, arg0, arg1, out, broadcast_spec);
        NGRAPH_TYPE_CASE(evaluate_not_equal, u64, arg0, arg1, out, broadcast_spec);
        NGRAPH_TYPE_CASE(evaluate_not_equal, f16, arg0, arg1, out, broadcast_spec);
        NGRAPH_TYPE_CASE(evaluate_not_equal, f32, arg0, arg1, out, broadcast_spec);
    default:
        rc = false;
        break;
    }
    return rc;
}
}  // namespace
}  // namespace not_equalop

// ----------------------------------- v1 --------------------------------------

BWDCMP_RTTI_DEFINITION(op::v1::NotEqual);

op::v1::NotEqual::NotEqual(const Output<Node>& arg0, const Output<Node>& arg1, const AutoBroadcastSpec& auto_broadcast)
    : BinaryElementwiseComparison(arg0, arg1, auto_broadcast) {
    constructor_validate_and_infer_types();
}

shared_ptr<Node> op::v1::NotEqual::clone_with_new_inputs(const OutputVector& new_args) const {
    NGRAPH_OP_SCOPE(v1_NotEqual_clone_with_new_inputs);
    check_new_args_count(this, new_args);
    return make_shared<op::v1::NotEqual>(new_args.at(0), new_args.at(1), this->get_autob());
}

bool op::v1::NotEqual::evaluate(const HostTensorVector& outputs, const HostTensorVector& inputs) const {
    NGRAPH_OP_SCOPE(v1_NotEqual_evaluate);
    NGRAPH_CHECK(validate_host_tensor_vector(outputs, 1) && validate_host_tensor_vector(inputs, 2));
    return not_equalop::evaluate_not_equal(inputs[0], inputs[1], outputs[0], get_autob());
}

bool op::v1::NotEqual::has_evaluate() const {
    NGRAPH_OP_SCOPE(v1_NotEqual_has_evaluate);
    switch (get_input_element_type(0)) {
    case ngraph::element::boolean:
    case ngraph::element::i32:
    case ngraph::element::i64:
    case ngraph::element::u32:
    case ngraph::element::u64:
    case ngraph::element::f16:
    case ngraph::element::f32:
        return true;
    default:
        break;
    }
    return false;
}

bool op::v1::NotEqual::visit_attributes(AttributeVisitor& visitor) {
    NGRAPH_OP_SCOPE(v1_NotEqual_visit_attributes);
    BinaryElementwiseComparison::visit_attributes(visitor);
    return true;
}
