LLVM 19.0.0git
DwarfStringPool.h
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1//===- llvm/CodeGen/DwarfStringPool.h - Dwarf Debug Framework ---*- C++ -*-===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9#ifndef LLVM_LIB_CODEGEN_ASMPRINTER_DWARFSTRINGPOOL_H
10#define LLVM_LIB_CODEGEN_ASMPRINTER_DWARFSTRINGPOOL_H
11
12#include "llvm/ADT/StringMap.h"
13#include "llvm/ADT/StringRef.h"
16
17namespace llvm {
18
19class AsmPrinter;
20class MCSection;
21class MCSymbol;
22
23// Collection of strings for this unit and assorted symbols.
24// A String->Symbol mapping of strings used by indirect
25// references.
28
30 StringRef Prefix;
31 uint64_t NumBytes = 0;
32 unsigned NumIndexedStrings = 0;
33 bool ShouldCreateSymbols;
34
35 StringMapEntry<EntryTy> &getEntryImpl(AsmPrinter &Asm, StringRef Str);
36
37public:
39
41
42 void emitStringOffsetsTableHeader(AsmPrinter &Asm, MCSection *OffsetSection,
43 MCSymbol *StartSym);
44
45 void emit(AsmPrinter &Asm, MCSection *StrSection,
46 MCSection *OffsetSection = nullptr,
47 bool UseRelativeOffsets = false);
48
49 bool empty() const { return Pool.empty(); }
50
51 unsigned size() const { return Pool.size(); }
52
53 unsigned getNumIndexedStrings() const { return NumIndexedStrings; }
54
55 /// Get a reference to an entry in the string pool.
57
58 /// Same as getEntry, except that you can use EntryRef::getIndex to obtain a
59 /// unique ID of this entry (e.g., for use in indexed forms like
60 /// DW_FORM_strx).
62};
63
64} // end namespace llvm
65
66#endif // LLVM_LIB_CODEGEN_ASMPRINTER_DWARFSTRINGPOOL_H
This file defines the StringMap class.
This file defines the BumpPtrAllocator interface.
static GCRegistry::Add< ErlangGC > A("erlang", "erlang-compatible garbage collector")
dxil metadata emit
This class is intended to be used as a driving class for all asm writers.
Definition: AsmPrinter.h:85
Allocate memory in an ever growing pool, as if by bump-pointer.
Definition: Allocator.h:66
DwarfStringPoolEntryRef: Dwarf string pool entry reference.
EntryRef getEntry(AsmPrinter &Asm, StringRef Str)
Get a reference to an entry in the string pool.
EntryRef getIndexedEntry(AsmPrinter &Asm, StringRef Str)
Same as getEntry, except that you can use EntryRef::getIndex to obtain a unique ID of this entry (e....
DwarfStringPoolEntryRef EntryRef
unsigned getNumIndexedStrings() const
void emitStringOffsetsTableHeader(AsmPrinter &Asm, MCSection *OffsetSection, MCSymbol *StartSym)
unsigned size() const
Instances of this class represent a uniqued identifier for a section in the current translation unit.
Definition: MCSection.h:35
MCSymbol - Instances of this class represent a symbol name in the MC file, and MCSymbols are created ...
Definition: MCSymbol.h:40
StringMapEntry - This is used to represent one value that is inserted into a StringMap.
unsigned size() const
Definition: StringMap.h:104
bool empty() const
Definition: StringMap.h:103
StringMap - This is an unconventional map that is specialized for handling keys that are "strings",...
Definition: StringMap.h:128
StringRef - Represent a constant reference to a string, i.e.
Definition: StringRef.h:50
This is an optimization pass for GlobalISel generic memory operations.
Definition: AddressRanges.h:18
Data for a string pool entry.