1 //===- subzero/src/IceConverter.h - Converts LLVM to ICE --------*- C++ -*-===// 2 // 3 // The Subzero Code Generator 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 /// 10 /// \file 11 /// \brief Declares the LLVM to ICE converter. 12 /// 13 //===----------------------------------------------------------------------===// 14 15 #ifndef SUBZERO_SRC_ICECONVERTER_H 16 #define SUBZERO_SRC_ICECONVERTER_H 17 18 #include "IceDefs.h" 19 #include "IceTranslator.h" 20 21 namespace llvm { 22 class GlobalValue; 23 class Module; 24 } 25 26 namespace Ice { 27 28 class Converter : public Translator { 29 Converter() = delete; 30 Converter(const Converter &) = delete; 31 Converter &operator=(const Converter &) = delete; 32 33 public: 34 Converter(llvm::Module *Mod, GlobalContext *Ctx) 35 : Translator(Ctx), Mod(Mod), 36 GlobalDeclarationsPool(new VariableDeclarationList()) {} 37 38 ~Converter() override = default; 39 40 /// Converts the LLVM Module to ICE. Sets exit status to false if successful, 41 /// true otherwise. 42 void convertToIce(); 43 44 llvm::Module *getModule() const { return Mod; } 45 46 /// Returns the global declaration associated with the corresponding global 47 /// value V. If no such global address, generates fatal error. 48 GlobalDeclaration *getGlobalDeclaration(const llvm::GlobalValue *V); 49 50 private: 51 llvm::Module *Mod; 52 using GlobalDeclarationMapType = 53 std::map<const llvm::GlobalValue *, GlobalDeclaration *>; 54 GlobalDeclarationMapType GlobalDeclarationMap; 55 56 std::unique_ptr<VariableDeclarationList> GlobalDeclarationsPool; 57 58 /// Walks module and generates names for unnamed globals using prefix 59 /// getFlags().DefaultGlobalPrefix, if the prefix is non-empty. 60 void nameUnnamedGlobalVariables(llvm::Module *Mod); 61 62 /// Walks module and generates names for unnamed functions using prefix 63 /// getFlags().DefaultFunctionPrefix, if the prefix is non-empty. 64 void nameUnnamedFunctions(llvm::Module *Mod); 65 66 /// Converts functions to ICE, and then machine code. 67 void convertFunctions(); 68 69 /// Converts globals to ICE, and then machine code. 70 void convertGlobals(llvm::Module *Mod); 71 72 /// Installs global declarations into GlobalDeclarationMap. 73 void installGlobalDeclarations(llvm::Module *Mod); 74 }; 75 76 } // end of namespace ICE. 77 78 #endif // SUBZERO_SRC_ICECONVERTER_H 79
