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 21namespace llvm { 22class GlobalValue; 23class Module; 24} 25 26namespace Ice { 27 28class Converter : public Translator { 29 Converter() = delete; 30 Converter(const Converter &) = delete; 31 Converter &operator=(const Converter &) = delete; 32 33public: 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 50private: 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