1 //===---- llvm/IRReader/IRReader.h - Reader for LLVM IR files ---*- C++ -*-===// 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 defines functions for reading LLVM IR. They support both 11 // Bitcode and Assembly, automatically detecting the input format. 12 // 13 //===----------------------------------------------------------------------===// 14 15 #ifndef LLVM_IRREADER_IRREADER_H 16 #define LLVM_IRREADER_IRREADER_H 17 18 #include "llvm/ADT/StringRef.h" 19 #include <memory> 20 21 namespace llvm { 22 23 class StringRef; 24 class MemoryBufferRef; 25 class Module; 26 class SMDiagnostic; 27 class LLVMContext; 28 29 /// If the given file holds a bitcode image, return a Module 30 /// for it which does lazy deserialization of function bodies. Otherwise, 31 /// attempt to parse it as LLVM Assembly and return a fully populated 32 /// Module. The ShouldLazyLoadMetadata flag is passed down to the bitcode 33 /// reader to optionally enable lazy metadata loading. 34 std::unique_ptr<Module> 35 getLazyIRFileModule(StringRef Filename, SMDiagnostic &Err, LLVMContext &Context, 36 bool ShouldLazyLoadMetadata = false); 37 38 /// If the given MemoryBuffer holds a bitcode image, return a Module 39 /// for it. Otherwise, attempt to parse it as LLVM Assembly and return 40 /// a Module for it. 41 /// \param UpgradeDebugInfo Run UpgradeDebugInfo, which runs the Verifier. 42 /// This option should only be set to false by llvm-as 43 /// for use inside the LLVM testuite! 44 /// \param DataLayoutString Override datalayout in the llvm assembly. 45 std::unique_ptr<Module> parseIR(MemoryBufferRef Buffer, SMDiagnostic &Err, 46 LLVMContext &Context, 47 bool UpgradeDebugInfo = true, 48 StringRef DataLayoutString = ""); 49 50 /// If the given file holds a bitcode image, return a Module for it. 51 /// Otherwise, attempt to parse it as LLVM Assembly and return a Module 52 /// for it. 53 /// \param UpgradeDebugInfo Run UpgradeDebugInfo, which runs the Verifier. 54 /// This option should only be set to false by llvm-as 55 /// for use inside the LLVM testuite! 56 /// \param DataLayoutString Override datalayout in the llvm assembly. 57 std::unique_ptr<Module> parseIRFile(StringRef Filename, SMDiagnostic &Err, 58 LLVMContext &Context, 59 bool UpgradeDebugInfo = true, 60 StringRef DataLayoutString = ""); 61 } 62 63 #endif 64