class MCSection;
class MCSymbol;
class MCLabel;
- class MCDwarfFile;
+ struct MCDwarfFile;
class MCDwarfLoc;
class MCObjectFileInfo;
class MCRegisterInfo;
/// Symbols - Bindings of names to symbols.
SymbolTable Symbols;
+ /// A maping from a local label number and an instance count to a symbol.
+ /// For example, in the assembly
+ /// 1:
+ /// 2:
+ /// 1:
+ /// We have three labels represented by the pairs (1, 0), (2, 0) and (1, 1)
+ DenseMap<std::pair<unsigned, unsigned>, MCSymbol*> LocalSymbols;
+
/// UsedNames - Keeps tracks of names that were used both for used declared
/// and artificial symbols.
StringMap<bool, BumpPtrAllocator&> UsedNames;
DenseMap<unsigned, MCLabel *> Instances;
/// NextInstance() creates the next instance of the directional local label
/// for the LocalLabelVal and adds it to the map if needed.
- unsigned NextInstance(int64_t LocalLabelVal);
+ unsigned NextInstance(unsigned LocalLabelVal);
/// GetInstance() gets the current instance of the directional local label
/// for the LocalLabelVal and adds it to the map if needed.
- unsigned GetInstance(int64_t LocalLabelVal);
+ unsigned GetInstance(unsigned LocalLabelVal);
/// The file name of the log file from the environment variable
/// AS_SECURE_LOG_FILE. Which must be set before the .secure_log_unique
/// We now emit a line table for each compile unit. To reduce the prologue
/// size of each line table, the files and directories used by each compile
/// unit are separated.
- typedef std::map<unsigned, SmallVector<MCDwarfFile *, 4> > MCDwarfFilesMap;
- MCDwarfFilesMap MCDwarfFilesCUMap;
- std::map<unsigned, SmallVector<StringRef, 4> > MCDwarfDirsCUMap;
+ std::map<unsigned, MCDwarfLineTable> MCDwarfLineTablesCUMap;
/// The current dwarf line information from the last dwarf .loc directive.
MCDwarfLoc CurrentDwarfLoc;
/// Darwin).
bool AllowTemporaryLabels;
- /// The dwarf line information from the .loc directives for the sections
- /// with assembled machine instructions have after seeing .loc directives.
- DenseMap<const MCSection *, MCLineSection *> MCLineSections;
- /// We need a deterministic iteration order, so we remember the order
- /// the elements were added.
- std::vector<const MCSection *> MCLineSectionOrder;
/// The Compile Unit ID that we are currently processing.
unsigned DwarfCompileUnitID;
- /// The line table start symbol for each Compile Unit.
- DenseMap<unsigned, MCSymbol *> MCLineTableSymbols;
void *MachOUniquingMap, *ELFUniquingMap, *COFFUniquingMap;
MCSymbol *CreateSymbol(StringRef Name);
+ MCSymbol *getOrCreateDirectionalLocalSymbol(unsigned LocalLabelVal,
+ unsigned Instance);
+
public:
explicit MCContext(const MCAsmInfo *MAI, const MCRegisterInfo *MRI,
const MCObjectFileInfo *MOFI, const SourceMgr *Mgr = 0,
/// symbol names.
unsigned getUniqueSymbolID() { return NextUniqueID++; }
- /// CreateDirectionalLocalSymbol - Create the definition of a directional
- /// local symbol for numbered label (used for "1:" definitions).
- MCSymbol *CreateDirectionalLocalSymbol(int64_t LocalLabelVal);
+ /// Create the definition of a directional local symbol for numbered label
+ /// (used for "1:" definitions).
+ MCSymbol *CreateDirectionalLocalSymbol(unsigned LocalLabelVal);
- /// GetDirectionalLocalSymbol - Create and return a directional local
- /// symbol for numbered label (used for "1b" or 1f" references).
- MCSymbol *GetDirectionalLocalSymbol(int64_t LocalLabelVal, int bORf);
+ /// Create and return a directional local symbol for numbered label (used
+ /// for "1b" or 1f" references).
+ MCSymbol *GetDirectionalLocalSymbol(unsigned LocalLabelVal, bool Before);
/// GetOrCreateSymbol - Lookup the symbol inside with the specified
/// @p Name. If it exists, return it. If not, create a forward
const std::string &getMainFileName() const { return MainFileName; }
/// \brief Set the main file name and override the default.
- void setMainFileName(StringRef S) { MainFileName = S.str(); }
+ void setMainFileName(StringRef S) { MainFileName = S; }
/// GetDwarfFile - creates an entry in the dwarf file and directory tables.
unsigned GetDwarfFile(StringRef Directory, StringRef FileName,
bool hasDwarfFiles() const {
// Traverse MCDwarfFilesCUMap and check whether each entry is empty.
- MCDwarfFilesMap::const_iterator MapB, MapE;
- for (MapB = MCDwarfFilesCUMap.begin(), MapE = MCDwarfFilesCUMap.end();
- MapB != MapE; MapB++)
- if (!MapB->second.empty())
+ for (const auto &FileTable : MCDwarfLineTablesCUMap)
+ if (!FileTable.second.getMCDwarfFiles().empty())
return true;
return false;
}
- const SmallVectorImpl<MCDwarfFile *> &getMCDwarfFiles(unsigned CUID = 0) {
- return MCDwarfFilesCUMap[CUID];
+ const std::map<unsigned, MCDwarfLineTable> &getMCDwarfLineTables() const {
+ return MCDwarfLineTablesCUMap;
}
- const SmallVectorImpl<StringRef> &getMCDwarfDirs(unsigned CUID = 0) {
- return MCDwarfDirsCUMap[CUID];
+
+ MCDwarfLineTable &getMCDwarfLineTable(unsigned CUID) {
+ return MCDwarfLineTablesCUMap[CUID];
}
- const DenseMap<const MCSection *, MCLineSection *>
- &getMCLineSections() const {
- return MCLineSections;
+ const MCDwarfLineTable &getMCDwarfLineTable(unsigned CUID) const {
+ auto I = MCDwarfLineTablesCUMap.find(CUID);
+ assert(I != MCDwarfLineTablesCUMap.end());
+ return I->second;
}
- const std::vector<const MCSection *> &getMCLineSectionOrder() const {
- return MCLineSectionOrder;
+
+ const SmallVectorImpl<MCDwarfFile> &getMCDwarfFiles(unsigned CUID = 0) {
+ return getMCDwarfLineTable(CUID).getMCDwarfFiles();
}
- void addMCLineSection(const MCSection *Sec, MCLineSection *Line) {
- MCLineSections[Sec] = Line;
- MCLineSectionOrder.push_back(Sec);
+ const SmallVectorImpl<std::string> &getMCDwarfDirs(unsigned CUID = 0) {
+ return getMCDwarfLineTable(CUID).getMCDwarfDirs();
+ }
+
+ bool hasMCLineSections() const {
+ for (const auto &Table : MCDwarfLineTablesCUMap)
+ if (!Table.second.getMCDwarfFiles().empty() || Table.second.getLabel())
+ return true;
+ return false;
}
unsigned getDwarfCompileUnitID() {
return DwarfCompileUnitID;
void setDwarfCompileUnitID(unsigned CUIndex) {
DwarfCompileUnitID = CUIndex;
}
- const DenseMap<unsigned, MCSymbol *> &getMCLineTableSymbols() const {
- return MCLineTableSymbols;
- }
MCSymbol *getMCLineTableSymbol(unsigned ID) const {
- DenseMap<unsigned, MCSymbol *>::const_iterator CIter =
- MCLineTableSymbols.find(ID);
- if (CIter == MCLineTableSymbols.end())
- return NULL;
- return CIter->second;
+ return getMCDwarfLineTable(ID).getLabel();
}
void setMCLineTableSymbol(MCSymbol *Sym, unsigned ID) {
- MCLineTableSymbols[ID] = Sym;
+ getMCDwarfLineTable(ID).setLabel(Sym);
}
/// setCurrentDwarfLoc - saves the information from the currently parsed
bool getGenDwarfForAssembly() { return GenDwarfForAssembly; }
void setGenDwarfForAssembly(bool Value) { GenDwarfForAssembly = Value; }
unsigned getGenDwarfFileNumber() { return GenDwarfFileNumber; }
- unsigned nextGenDwarfFileNumber() { return ++GenDwarfFileNumber; }
+ void setGenDwarfFileNumber(unsigned FileNumber) {
+ GenDwarfFileNumber = FileNumber;
+ }
const MCSection *getGenDwarfSection() { return GenDwarfSection; }
void setGenDwarfSection(const MCSection *Sec) { GenDwarfSection = Sec; }
MCSymbol *getGenDwarfSectionStartSym() { return GenDwarfSectionStartSym; }
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