1//===----------- DeviceOffload.h - Device Offloading ------------*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// This file implements classes required for offloading to CUDA devices.
10//
11//===----------------------------------------------------------------------===//
12
13#ifndef LLVM_CLANG_LIB_INTERPRETER_DEVICE_OFFLOAD_H
14#define LLVM_CLANG_LIB_INTERPRETER_DEVICE_OFFLOAD_H
15
16#include "IncrementalParser.h"
17#include "llvm/Support/FileSystem.h"
18#include "llvm/Support/VirtualFileSystem.h"
19
20namespace clang {
21struct PartialTranslationUnit;
22class CompilerInstance;
23class CodeGenOptions;
24class TargetOptions;
25
26class IncrementalCUDADeviceParser : public IncrementalParser {
27 const std::list<PartialTranslationUnit> &PTUs;
28
29public:
30 IncrementalCUDADeviceParser(
31 CompilerInstance &DeviceInstance, CompilerInstance &HostInstance,
32 llvm::IntrusiveRefCntPtr<llvm::vfs::InMemoryFileSystem> VFS,
33 llvm::Error &Err, const std::list<PartialTranslationUnit> &PTUs);
34
35 // Generate PTX for the last PTU.
36 llvm::Expected<llvm::StringRef> GeneratePTX();
37
38 // Generate fatbinary contents in memory
39 llvm::Error GenerateFatbinary();
40
41 ~IncrementalCUDADeviceParser();
42
43protected:
44 int SMVersion;
45 llvm::SmallString<1024> PTXCode;
46 llvm::SmallVector<char, 1024> FatbinContent;
47 llvm::IntrusiveRefCntPtr<llvm::vfs::InMemoryFileSystem> VFS;
48 CodeGenOptions &CodeGenOpts; // Intentionally a reference.
49 const TargetOptions &TargetOpts;
50};
51
52} // namespace clang
53
54#endif // LLVM_CLANG_LIB_INTERPRETER_DEVICE_OFFLOAD_H
55