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