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 {
21
22class IncrementalCUDADeviceParser : public IncrementalParser {
23public:
24  IncrementalCUDADeviceParser(
25      Interpreter &Interp, std::unique_ptr<CompilerInstance> Instance,
26      IncrementalParser &HostParser, llvm::LLVMContext &LLVMCtx,
27      llvm::IntrusiveRefCntPtr<llvm::vfs::InMemoryFileSystem> VFS,
28      llvm::Error &Err);
29
30  llvm::Expected<PartialTranslationUnit &>
31  Parse(llvm::StringRef Input) override;
32
33  // Generate PTX for the last PTU
34  llvm::Expected<llvm::StringRef> GeneratePTX();
35
36  // Generate fatbinary contents in memory
37  llvm::Error GenerateFatbinary();
38
39  ~IncrementalCUDADeviceParser();
40
41protected:
42  IncrementalParser &HostParser;
43  int SMVersion;
44  llvm::SmallString<1024> PTXCode;
45  llvm::SmallVector<char, 1024> FatbinContent;
46  llvm::IntrusiveRefCntPtr<llvm::vfs::InMemoryFileSystem> VFS;
47};
48
49} // namespace clang
50
51#endif // LLVM_CLANG_LIB_INTERPRETER_DEVICE_OFFLOAD_H
52