1 //===-LTOBackend.h - LLVM Link Time Optimizer Backend ---------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file implements the "backend" phase of LTO, i.e. it performs 11 // optimization and code generation on a loaded module. It is generally used 12 // internally by the LTO class but can also be used independently, for example 13 // to implement a standalone ThinLTO backend. 14 // 15 //===----------------------------------------------------------------------===// 16 17 #ifndef LLVM_LTO_LTOBACKEND_H 18 #define LLVM_LTO_LTOBACKEND_H 19 20 #include "llvm/ADT/MapVector.h" 21 #include "llvm/IR/DiagnosticInfo.h" 22 #include "llvm/IR/ModuleSummaryIndex.h" 23 #include "llvm/LTO/LTO.h" 24 #include "llvm/Support/MemoryBuffer.h" 25 #include "llvm/Target/TargetOptions.h" 26 #include "llvm/Transforms/IPO/FunctionImport.h" 27 28 namespace llvm { 29 30 class BitcodeModule; 31 class Error; 32 class Module; 33 class Target; 34 35 namespace lto { 36 37 /// Runs a regular LTO backend. The regular LTO backend can also act as the 38 /// regular LTO phase of ThinLTO, which may need to access the combined index. 39 Error backend(Config &C, AddStreamFn AddStream, 40 unsigned ParallelCodeGenParallelismLevel, 41 std::unique_ptr<Module> M, ModuleSummaryIndex &CombinedIndex); 42 43 /// Runs a ThinLTO backend. 44 Error thinBackend(Config &C, unsigned Task, AddStreamFn AddStream, Module &M, 45 const ModuleSummaryIndex &CombinedIndex, 46 const FunctionImporter::ImportMapTy &ImportList, 47 const GVSummaryMapTy &DefinedGlobals, 48 MapVector<StringRef, BitcodeModule> &ModuleMap); 49 } 50 } 51 52 #endif 53
