/**
 * Copyright (c) 2024 Huawei Technologies Co., Ltd.
 * This file is a part of the CANN Open Software.
 * Licensed under CANN Open Software License Agreement Version 1.0 (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 sign.h
 * \brief
 */
#ifndef LIB_MATH_SIGN_H
#define LIB_MATH_SIGN_H
#include <type_traits>
#include "kernel_log.h"
#include "kernel_tensor.h"
#include "kernel_operator_intf.h"
#include "../../impl/math/sign/sign_common_impl.h"


#if __CCE_AICORE__ == 200 || __CCE_AICORE__ == 220
#pragma begin_pipe(V)
namespace AscendC {
/*
 * @brief This function Computes the sign operation by element. (e.g. sign(0.7) is 1)
 * @ingroup Sign
 * @param [in] srcTensor, input LocalTensor
 * @param [in] sharedTmpBuffer, input local temporary Tensor
 * @param [in] calCount, amount of data to be calculated
 * @param [out] dstTensor, output LocalTensor
 */
template <typename T, bool isReuseSource = false>
__aicore__ inline void Sign(const LocalTensor<T> &dstTensor, const LocalTensor<T> &srcTensor,
    const LocalTensor<uint8_t> &sharedTmpBuffer, const uint32_t calCount)
{
    SignCompute<T, isReuseSource>(dstTensor, srcTensor, sharedTmpBuffer, calCount);
}

/*
 * @brief This function Computes the sign operation by element. (e.g. sign(0.7) is 1)
 * @ingroup Sign
 * @param [in] srcTensor, input LocalTensor
 * @param [in] sharedTmpBuffer, input local temporary Tensor
 * @param [out] dstTensor, output LocalTensor
 */
template <typename T, bool isReuseSource = false>
__aicore__ inline void Sign(const LocalTensor<T>& dstTensor, const LocalTensor<T>& srcTensor,
    const LocalTensor<uint8_t>& sharedTmpBuffer)
{
    Sign<T, isReuseSource>(dstTensor, srcTensor, sharedTmpBuffer, srcTensor.GetSize());
}

/*
 * @brief This function Computes the sign operation by element. (e.g. sign(0.7) is 1)
 * @ingroup Sign
 * @param [in] srcTensor, input LocalTensor
 * @param [in] calCount, amount of data to be calculated
 * @param [out] dstTensor, output LocalTensor
 */
template <typename T, bool isReuseSource = false>
__aicore__ inline void Sign(const LocalTensor<T> &dstTensor, const LocalTensor<T> &srcTensor, const uint32_t calCount)
{
    // Only for AI Vector Core.
    if ASCEND_IS_AIC {
        return;
    }
    // Using the Stack Space to Allocate sharedTmpBuffer
    LocalTensor<uint8_t> sharedTmpBuffer;
    bool ans = PopStackBuffer<uint8_t, TPosition::LCM>(sharedTmpBuffer);
    ASCENDC_ASSERT((ans), { KERNEL_LOG(KERNEL_ERROR, "PopStackBuffer Error!"); });
    Sign<T, isReuseSource>(dstTensor, srcTensor, sharedTmpBuffer, calCount);
}

/*
 * @brief This function Computes the sign operation by element. (e.g. sign(0.7) is 1)
 * @ingroup Sign
 * @param [in] srcTensor, input LocalTensor
 * @param [out] dstTensor, output LocalTensor
 */
template <typename T, bool isReuseSource = false>
__aicore__ inline void Sign(const LocalTensor<T> &dstTensor, const LocalTensor<T> &srcTensor)
{
    Sign<T, isReuseSource>(dstTensor, srcTensor, srcTensor.GetSize());
}
}  // namespace AscendC
#pragma end_pipe
#endif

#endif  // LIB_MATH_SIGN_H