/**
 * Copyright (c) 2026 Huawei Technologies Co., Ltd.
 * This program is free software, you can redistribute it and/or modify it under the terms and conditions of
 * CANN Open Software License Agreement Version 2.0 (the "License").
 * Please refer to the License for details. You may not use this file except in compliance with the License.
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
 * See LICENSE in the root of the software repository for the full text of the License.
 */

/*!
 * \file stateless_exponential_def.cpp
 * \brief Op definition for StatelessExponential (in-place Exp(lambda) via Philox4x32-10).
 */

#include "register/op_def_registry.h"

namespace ops {
class StatelessExponential : public OpDef {
public:
    explicit StatelessExponential(const char* name) : OpDef(name)
    {
        // self is both INPUT and OUTPUT (in-place). seed/offset are scalar tensors whose
        // values are consumed at tiling time via TilingInputsDataDependency.
        this->Input("self")
            .ParamType(REQUIRED)
            .DataType({ge::DT_FLOAT16, ge::DT_BF16, ge::DT_FLOAT})
            .Format({ge::FORMAT_ND, ge::FORMAT_ND, ge::FORMAT_ND})
            .UnknownShapeFormat({ge::FORMAT_ND, ge::FORMAT_ND, ge::FORMAT_ND})
            .AutoContiguous();
        this->Input("seed")
            .ParamType(REQUIRED)
            .DataType({ge::DT_INT64, ge::DT_INT64, ge::DT_INT64})
            .Format({ge::FORMAT_ND, ge::FORMAT_ND, ge::FORMAT_ND})
            .UnknownShapeFormat({ge::FORMAT_ND, ge::FORMAT_ND, ge::FORMAT_ND})
            .ValueDepend(OPTIONAL);
        this->Input("offset")
            .ParamType(REQUIRED)
            .DataType({ge::DT_INT64, ge::DT_INT64, ge::DT_INT64})
            .Format({ge::FORMAT_ND, ge::FORMAT_ND, ge::FORMAT_ND})
            .UnknownShapeFormat({ge::FORMAT_ND, ge::FORMAT_ND, ge::FORMAT_ND})
            .ValueDepend(OPTIONAL);
        this->Output("self")
            .ParamType(REQUIRED)
            .DataType({ge::DT_FLOAT16, ge::DT_BF16, ge::DT_FLOAT})
            .Format({ge::FORMAT_ND, ge::FORMAT_ND, ge::FORMAT_ND})
            .UnknownShapeFormat({ge::FORMAT_ND, ge::FORMAT_ND, ge::FORMAT_ND});

        this->Attr("lambd").Float(1.0);

        this->AICore().AddConfig("ascend950");
        this->AICore().AddConfig("ascend350");
        this->AICore().AddConfig("ascend960dt");
    }
};

OP_ADD(StatelessExponential);
} // namespace ops