llvm/mlir/include/mlir/Target/LLVM/NVVM/Utils.h

//===- Utils.h - MLIR NVVM target utils -------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This files declares NVVM target related utility classes and functions.
//
//===----------------------------------------------------------------------===//

#ifndef MLIR_TARGET_LLVM_NVVM_UTILS_H
#define MLIR_TARGET_LLVM_NVVM_UTILS_H

#include "mlir/Dialect/GPU/IR/CompilationInterfaces.h"
#include "mlir/Dialect/LLVMIR/NVVMDialect.h"
#include "mlir/Target/LLVM/ModuleToObject.h"

namespace mlir {
namespace NVVM {
/// Searches & returns the path CUDA toolkit path, the search order is:
/// 1. The `CUDA_ROOT` environment variable.
/// 2. The `CUDA_HOME` environment variable.
/// 3. The `CUDA_PATH` environment variable.
/// 4. The CUDA toolkit path detected by CMake.
/// 5. Returns an empty string.
StringRef getCUDAToolkitPath();

/// Base class for all NVVM serializations from GPU modules into binary strings.
/// By default this class serializes into LLVM bitcode.
class SerializeGPUModuleBase : public LLVM::ModuleToObject { … };
} // namespace NVVM
} // namespace mlir

#endif // MLIR_TARGET_LLVM_NVVM_UTILS_H