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chore: import upstream snapshot with attribution
2026-07-13 13:36:25 +08:00

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/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
/*!
* \file tvm/support/cuda/nvtx.h
* \brief NVTX scoped range utility (header-only).
*
* Provides NVTXScopedRange: a lightweight RAII wrapper over
* nvtxRangePush/Pop. When TVM_NVTX_ENABLED is not defined or is 0,
* all methods are no-ops compiled away by the optimizer.
*/
#ifndef TVM_SUPPORT_CUDA_NVTX_H_
#define TVM_SUPPORT_CUDA_NVTX_H_
#include <string>
#ifndef TVM_NVTX_ENABLED
#define TVM_NVTX_ENABLED 0
#endif
#if TVM_NVTX_ENABLED
#include <nvtx3/nvToolsExt.h>
#endif // TVM_NVTX_ENABLED
namespace tvm {
namespace support {
/*!
* \brief A class to create a NVTX range. No-op if TVM is not built against NVTX.
*/
class NVTXScopedRange {
public:
/*! \brief Enter an NVTX scoped range */
#if TVM_NVTX_ENABLED
explicit NVTXScopedRange(const char* name) { nvtxRangePush(name); }
#else
explicit NVTXScopedRange(const char* name) {}
#endif // TVM_NVTX_ENABLED
/*! \brief Enter an NVTX scoped range */
explicit NVTXScopedRange(const std::string& name) : NVTXScopedRange(name.c_str()) {}
/*! \brief Exit an NVTX scoped range */
#if TVM_NVTX_ENABLED
~NVTXScopedRange() { nvtxRangePop(); }
#else
~NVTXScopedRange() {}
#endif // TVM_NVTX_ENABLED
NVTXScopedRange(const NVTXScopedRange& other) = delete;
NVTXScopedRange(NVTXScopedRange&& other) = delete;
NVTXScopedRange& operator=(const NVTXScopedRange& other) = delete;
NVTXScopedRange& operator=(NVTXScopedRange&& other) = delete;
};
#ifdef _MSC_VER
#define TVM_NVTX_FUNC_SCOPE() ::tvm::support::NVTXScopedRange _nvtx_func_scope_(__FUNCSIG__);
#else
#define TVM_NVTX_FUNC_SCOPE() \
::tvm::support::NVTXScopedRange _nvtx_func_scope_(__PRETTY_FUNCTION__);
#endif
} // namespace support
} // namespace tvm
#endif // TVM_SUPPORT_CUDA_NVTX_H_