1 //===-- llvm/CodeGen/DwarfStringPool.h - Dwarf Debug Framework -*- 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 #ifndef LLVM_LIB_CODEGEN_ASMPRINTER_DWARFSTRINGPOOL_H 11 #define LLVM_LIB_CODEGEN_ASMPRINTER_DWARFSTRINGPOOL_H 12 13 #include "llvm/ADT/StringMap.h" 14 #include "llvm/CodeGen/DwarfStringPoolEntry.h" 15 #include "llvm/Support/Allocator.h" 16 #include <utility> 17 18 namespace llvm { 19 20 class AsmPrinter; 21 class MCSymbol; 22 class MCSection; 23 class StringRef; 24 25 // Collection of strings for this unit and assorted symbols. 26 // A String->Symbol mapping of strings used by indirect 27 // references. 28 class DwarfStringPool { 29 typedef DwarfStringPoolEntry EntryTy; 30 StringMap<EntryTy, BumpPtrAllocator &> Pool; 31 StringRef Prefix; 32 unsigned NumBytes = 0; 33 bool ShouldCreateSymbols; 34 35 public: 36 typedef DwarfStringPoolEntryRef EntryRef; 37 38 DwarfStringPool(BumpPtrAllocator &A, AsmPrinter &Asm, StringRef Prefix); 39 40 void emit(AsmPrinter &Asm, MCSection *StrSection, 41 MCSection *OffsetSection = nullptr); 42 43 bool empty() const { return Pool.empty(); } 44 45 /// Get a reference to an entry in the string pool. 46 EntryRef getEntry(AsmPrinter &Asm, StringRef Str); 47 }; 48 } 49 #endif 50
