forked from OSchip/llvm-project
75 lines
2.8 KiB
C++
75 lines
2.8 KiB
C++
//===-LTOCodeGenerator.h - LLVM Link Time Optimizer -----------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file declares the LTOCodeGenerator class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LTO_CODE_GENERATOR_H
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#define LTO_CODE_GENERATOR_H
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#include "llvm/Linker.h"
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#include "llvm/LLVMContext.h"
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#include "llvm/ADT/StringMap.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/SmallPtrSet.h"
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#include <string>
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//
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// C++ class which implements the opaque lto_code_gen_t
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//
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struct LTOCodeGenerator {
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static const char* getVersionString();
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LTOCodeGenerator();
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~LTOCodeGenerator();
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bool addModule(struct LTOModule*, std::string& errMsg);
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bool setDebugInfo(lto_debug_model, std::string& errMsg);
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bool setCodePICModel(lto_codegen_model, std::string& errMsg);
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void setCpu(const char *cpu);
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void addMustPreserveSymbol(const char* sym);
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bool writeMergedModules(const char* path,
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std::string& errMsg);
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bool compile_to_file(const char** name, std::string& errMsg);
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const void* compile(size_t* length, std::string& errMsg);
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void setCodeGenDebugOptions(const char *opts);
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private:
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bool generateObjectFile(llvm::raw_ostream& out,
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std::string& errMsg);
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void applyScopeRestrictions();
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void applyRestriction(llvm::GlobalValue &GV,
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std::vector<const char*> &mustPreserveList,
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llvm::SmallPtrSet<llvm::GlobalValue*, 8> &asmUsed,
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llvm::Mangler &mangler);
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bool determineTarget(std::string& errMsg);
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typedef llvm::StringMap<uint8_t> StringSet;
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llvm::LLVMContext& _context;
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llvm::Linker _linker;
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llvm::TargetMachine* _target;
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bool _emitDwarfDebugInfo;
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bool _scopeRestrictionsDone;
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lto_codegen_model _codeModel;
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StringSet _mustPreserveSymbols;
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StringSet _asmUndefinedRefs;
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llvm::MemoryBuffer* _nativeObjectFile;
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std::vector<const char*> _codegenOptions;
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std::string _mCpu;
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std::string _nativeObjectPath;
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};
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#endif // LTO_CODE_GENERATOR_H
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