| //===-- llvm/CodeGen/DwarfStringPool.h - Dwarf Debug Framework -*- C++ -*--===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef CODEGEN_ASMPRINTER_STRINGPOOL_H__ |
| #define CODEGEN_ASMPRINTER_STRINGPOOL_H__ |
| |
| #include "llvm/ADT/StringMap.h" |
| #include "llvm/CodeGen/AsmPrinter.h" |
| #include "llvm/Support/Allocator.h" |
| |
| #include <utility> |
| |
| namespace llvm { |
| |
| class MCSymbol; |
| class MCSection; |
| class StringRef; |
| |
| // Collection of strings for this unit and assorted symbols. |
| // A String->Symbol mapping of strings used by indirect |
| // references. |
| class DwarfStringPool { |
| StringMap<std::pair<MCSymbol *, unsigned>, BumpPtrAllocator &> Pool; |
| StringRef Prefix; |
| MCSymbol *SectionSymbol; |
| |
| public: |
| DwarfStringPool(BumpPtrAllocator &A, AsmPrinter &Asm, StringRef Prefix) |
| : Pool(A), Prefix(Prefix), SectionSymbol(Asm.GetTempSymbol(Prefix)) {} |
| |
| void emit(AsmPrinter &Asm, const MCSection *StrSection, |
| const MCSection *OffsetSection = nullptr, |
| const MCSymbol *StrSecSym = nullptr); |
| |
| /// \brief Returns the entry into the start of the pool. |
| MCSymbol *getSectionSymbol(); |
| |
| /// \brief Returns an entry into the string pool with the given |
| /// string text. |
| MCSymbol *getSymbol(AsmPrinter &Asm, StringRef Str); |
| |
| /// \brief Returns the index into the string pool with the given |
| /// string text. |
| unsigned getIndex(AsmPrinter &Asm, StringRef Str); |
| |
| bool empty() const { return Pool.empty(); } |
| }; |
| } |
| #endif |