77 lines
2.7 KiB
C++
77 lines
2.7 KiB
C++
//===-- CudaInstallationDetector.h - Cuda Instalation Detector --*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CLANG_DRIVER_CUDAINSTALLATIONDETECTOR_H
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#define LLVM_CLANG_DRIVER_CUDAINSTALLATIONDETECTOR_H
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#include "clang/Basic/Cuda.h"
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#include "clang/Driver/Driver.h"
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#include <bitset>
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namespace clang {
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namespace driver {
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/// A class to find a viable CUDA installation
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class CudaInstallationDetector {
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private:
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const Driver &D;
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bool IsValid = false;
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CudaVersion Version = CudaVersion::UNKNOWN;
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std::string InstallPath;
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std::string BinPath;
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std::string LibDevicePath;
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std::string IncludePath;
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llvm::StringMap<std::string> LibDeviceMap;
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// CUDA architectures for which we have raised an error in
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// CheckCudaVersionSupportsArch.
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mutable std::bitset<(int)OffloadArch::LAST> ArchsWithBadVersion;
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public:
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CudaInstallationDetector(const Driver &D, const llvm::Triple &HostTriple,
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const llvm::opt::ArgList &Args);
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void AddCudaIncludeArgs(const llvm::opt::ArgList &DriverArgs,
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llvm::opt::ArgStringList &CC1Args) const;
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/// Emit an error if Version does not support the given Arch.
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///
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/// If either Version or Arch is unknown, does not emit an error. Emits at
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/// most one error per Arch.
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void CheckCudaVersionSupportsArch(OffloadArch Arch) const;
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/// Check whether we detected a valid Cuda install.
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bool isValid() const { return IsValid; }
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/// Print information about the detected CUDA installation.
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void print(raw_ostream &OS) const;
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/// Get the detected Cuda install's version.
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CudaVersion version() const {
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return Version == CudaVersion::NEW ? CudaVersion::PARTIALLY_SUPPORTED
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: Version;
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}
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/// Get the detected Cuda installation path.
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StringRef getInstallPath() const { return InstallPath; }
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/// Get the detected path to Cuda's bin directory.
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StringRef getBinPath() const { return BinPath; }
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/// Get the detected Cuda Include path.
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StringRef getIncludePath() const { return IncludePath; }
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/// Get the detected Cuda device library path.
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StringRef getLibDevicePath() const { return LibDevicePath; }
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/// Get libdevice file for given architecture
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std::string getLibDeviceFile(StringRef Gpu) const {
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return LibDeviceMap.lookup(Gpu);
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}
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void WarnIfUnsupportedVersion() const;
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};
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} // namespace driver
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} // namespace clang
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#endif // LLVM_CLANG_DRIVER_CUDAINSTALLATIONDETECTOR_H
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