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https://github.com/RPCS3/llvm-mirror.git
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3f75e2a143
Summary: This is the producer side for DWARF v5 string offsets tables. The reader/consumer
side was committed with r321295. All compile and type units in a module share a
contribution to the string offsets table. Indirect strings use the strx{1,2,3,4} index forms.
Reviewers: dblaikie, aprantl, JDevliegehere
Differential Revision: https://reviews.llvm.org/D42021
llvm-svn: 323546
54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
//===- llvm/CodeGen/DwarfStringPool.h - Dwarf Debug Framework ---*- C++ -*-===//
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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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#ifndef LLVM_LIB_CODEGEN_ASMPRINTER_DWARFSTRINGPOOL_H
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#define LLVM_LIB_CODEGEN_ASMPRINTER_DWARFSTRINGPOOL_H
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#include "llvm/ADT/StringMap.h"
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#include "llvm/ADT/StringRef.h"
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#include "llvm/CodeGen/DwarfStringPoolEntry.h"
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#include "llvm/Support/Allocator.h"
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namespace llvm {
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class AsmPrinter;
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class MCSection;
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// Collection of strings for this unit and assorted symbols.
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// A String->Symbol mapping of strings used by indirect
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// references.
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class DwarfStringPool {
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using EntryTy = DwarfStringPoolEntry;
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StringMap<EntryTy, BumpPtrAllocator &> Pool;
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StringRef Prefix;
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unsigned NumBytes = 0;
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bool ShouldCreateSymbols;
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public:
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using EntryRef = DwarfStringPoolEntryRef;
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DwarfStringPool(BumpPtrAllocator &A, AsmPrinter &Asm, StringRef Prefix);
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void emit(AsmPrinter &Asm, MCSection *StrSection,
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MCSection *OffsetSection = nullptr,
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bool UseRelativeOffsets = false);
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bool empty() const { return Pool.empty(); }
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unsigned size() const { return Pool.size(); }
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/// Get a reference to an entry in the string pool.
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EntryRef getEntry(AsmPrinter &Asm, StringRef Str);
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};
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} // end namespace llvm
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#endif // LLVM_LIB_CODEGEN_ASMPRINTER_DWARFSTRINGPOOL_H
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