| 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 | |
| 20 | namespace clang { |
| 21 | |
| 22 | class IncrementalCUDADeviceParser : public IncrementalParser { |
| 23 | public: |
| 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 | |
| 41 | protected: |
| 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 |