#include "llvm/ADT/StringMap.h"
#include "llvm/ADT/Twine.h"
#include "llvm/MC/MCDwarf.h"
+#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/MC/SectionKind.h"
#include "llvm/Support/Allocator.h"
#include "llvm/Support/Compiler.h"
class MCExpr;
class MCSection;
class MCSymbol;
+ class MCSymbolELF;
class MCLabel;
struct MCDwarfFile;
class MCDwarfLoc;
/// objects.
BumpPtrAllocator Allocator;
+ SpecificBumpPtrAllocator<MCSectionCOFF> COFFAllocator;
+ SpecificBumpPtrAllocator<MCSectionELF> ELFAllocator;
+ SpecificBumpPtrAllocator<MCSectionMachO> MachOAllocator;
+
/// Bindings of names to symbols.
SymbolTable Symbols;
/// ELF sections can have a corresponding symbol. This maps one to the
/// other.
- DenseMap<const MCSectionELF *, MCSymbol *> SectionSymbols;
+ DenseMap<const MCSectionELF *, MCSymbolELF *> SectionSymbols;
/// A mapping from a local label number and an instance count to a symbol.
/// For example, in the assembly
/// assembly source files.
unsigned GenDwarfFileNumber;
- /// Symbols created for the start and end of each section, used for
- /// generating the .debug_ranges and .debug_aranges sections.
- MapVector<const MCSection *, std::pair<MCSymbol *, MCSymbol *>>
- SectionStartEndSyms;
+ /// Sections for generating the .debug_ranges and .debug_aranges sections.
+ SetVector<MCSection *> SectionsForRanges;
/// The information gathered from labels that will have dwarf label
/// entries when generating dwarf assembly source files.
}
};
- StringMap<const MCSectionMachO *> MachOUniquingMap;
- std::map<ELFSectionKey, const MCSectionELF *> ELFUniquingMap;
- std::map<COFFSectionKey, const MCSectionCOFF *> COFFUniquingMap;
+ StringMap<MCSectionMachO *> MachOUniquingMap;
+ std::map<ELFSectionKey, MCSectionELF *> ELFUniquingMap;
+ std::map<COFFSectionKey, MCSectionCOFF *> COFFUniquingMap;
StringMap<bool> ELFRelSecNames;
+ SpecificBumpPtrAllocator<MCSubtargetInfo> MCSubtargetAllocator;
+
/// Do automatic reset in destructor
bool AutoReset;
- MCSymbol *CreateSymbol(StringRef Name, bool AlwaysAddSuffix);
+ bool HadError;
+
+ MCSymbol *createSymbolImpl(const StringMapEntry<bool> *Name,
+ bool CanBeUnnamed);
+ MCSymbol *createSymbol(StringRef Name, bool AlwaysAddSuffix,
+ bool IsTemporary);
MCSymbol *getOrCreateDirectionalLocalSymbol(unsigned LocalLabelVal,
unsigned Instance);
/// Create and return a new assembler temporary symbol with a unique but
/// unspecified name.
- MCSymbol *createTempSymbol();
+ MCSymbol *createTempSymbol(bool CanBeUnnamed = true);
- MCSymbol *createTempSymbol(const Twine &Name, bool AlwaysAddSuffix);
+ MCSymbol *createTempSymbol(const Twine &Name, bool AlwaysAddSuffix,
+ bool CanBeUnnamed = true);
/// Create the definition of a directional local symbol for numbered label
/// (used for "1:" definitions).
/// \param Name - The symbol name, which must be unique across all symbols.
MCSymbol *getOrCreateSymbol(const Twine &Name);
- MCSymbol *getOrCreateSectionSymbol(const MCSectionELF &Section);
+ MCSymbolELF *getOrCreateSectionSymbol(const MCSectionELF &Section);
/// Gets a symbol that will be defined to the final stack offset of a local
/// variable after codegen.
///
- /// \param Idx - The index of a local variable passed to @llvm.frameescape.
+ /// \param Idx - The index of a local variable passed to @llvm.localescape.
MCSymbol *getOrCreateFrameAllocSymbol(StringRef FuncName, unsigned Idx);
MCSymbol *getOrCreateParentFrameOffsetSymbol(StringRef FuncName);
/// Return the MCSection for the specified mach-o section. This requires
/// the operands to be valid.
- const MCSectionMachO *getMachOSection(StringRef Segment, StringRef Section,
- unsigned TypeAndAttributes,
- unsigned Reserved2, SectionKind K,
- const char *BeginSymName = nullptr);
-
- const MCSectionMachO *getMachOSection(StringRef Segment, StringRef Section,
- unsigned TypeAndAttributes,
- SectionKind K,
- const char *BeginSymName = nullptr) {
+ MCSectionMachO *getMachOSection(StringRef Segment, StringRef Section,
+ unsigned TypeAndAttributes,
+ unsigned Reserved2, SectionKind K,
+ const char *BeginSymName = nullptr);
+
+ MCSectionMachO *getMachOSection(StringRef Segment, StringRef Section,
+ unsigned TypeAndAttributes, SectionKind K,
+ const char *BeginSymName = nullptr) {
return getMachOSection(Segment, Section, TypeAndAttributes, 0, K,
BeginSymName);
}
- const MCSectionELF *getELFSection(StringRef Section, unsigned Type,
- unsigned Flags) {
+ MCSectionELF *getELFSection(StringRef Section, unsigned Type,
+ unsigned Flags) {
return getELFSection(Section, Type, Flags, nullptr);
}
- const MCSectionELF *getELFSection(StringRef Section, unsigned Type,
- unsigned Flags,
- const char *BeginSymName) {
+ MCSectionELF *getELFSection(StringRef Section, unsigned Type,
+ unsigned Flags, const char *BeginSymName) {
return getELFSection(Section, Type, Flags, 0, "", BeginSymName);
}
- const MCSectionELF *getELFSection(StringRef Section, unsigned Type,
- unsigned Flags, unsigned EntrySize,
- StringRef Group) {
+ MCSectionELF *getELFSection(StringRef Section, unsigned Type,
+ unsigned Flags, unsigned EntrySize,
+ StringRef Group) {
return getELFSection(Section, Type, Flags, EntrySize, Group, nullptr);
}
- const MCSectionELF *getELFSection(StringRef Section, unsigned Type,
- unsigned Flags, unsigned EntrySize,
- StringRef Group,
- const char *BeginSymName) {
+ MCSectionELF *getELFSection(StringRef Section, unsigned Type,
+ unsigned Flags, unsigned EntrySize,
+ StringRef Group, const char *BeginSymName) {
return getELFSection(Section, Type, Flags, EntrySize, Group, ~0,
BeginSymName);
}
- const MCSectionELF *getELFSection(StringRef Section, unsigned Type,
- unsigned Flags, unsigned EntrySize,
- StringRef Group, unsigned UniqueID) {
+ MCSectionELF *getELFSection(StringRef Section, unsigned Type,
+ unsigned Flags, unsigned EntrySize,
+ StringRef Group, unsigned UniqueID) {
return getELFSection(Section, Type, Flags, EntrySize, Group, UniqueID,
nullptr);
}
- const MCSectionELF *getELFSection(StringRef Section, unsigned Type,
- unsigned Flags, unsigned EntrySize,
- StringRef Group, unsigned UniqueID,
- const char *BeginSymName);
+ MCSectionELF *getELFSection(StringRef Section, unsigned Type,
+ unsigned Flags, unsigned EntrySize,
+ StringRef Group, unsigned UniqueID,
+ const char *BeginSymName);
+
+ MCSectionELF *getELFSection(StringRef Section, unsigned Type,
+ unsigned Flags, unsigned EntrySize,
+ const MCSymbolELF *Group, unsigned UniqueID,
+ const char *BeginSymName,
+ const MCSectionELF *Associated);
- const MCSectionELF *getELFSection(StringRef Section, unsigned Type,
+ MCSectionELF *createELFRelSection(StringRef Name, unsigned Type,
unsigned Flags, unsigned EntrySize,
- const MCSymbol *Group, unsigned UniqueID,
- const char *BeginSymName,
+ const MCSymbolELF *Group,
const MCSectionELF *Associated);
- const MCSectionELF *createELFRelSection(StringRef Name, unsigned Type,
- unsigned Flags, unsigned EntrySize,
- const MCSymbol *Group,
- const MCSectionELF *Associated);
-
- void renameELFSection(const MCSectionELF *Section, StringRef Name);
+ void renameELFSection(MCSectionELF *Section, StringRef Name);
- const MCSectionELF *createELFGroupSection(const MCSymbol *Group);
+ MCSectionELF *createELFGroupSection(const MCSymbolELF *Group);
- const MCSectionCOFF *getCOFFSection(StringRef Section,
- unsigned Characteristics,
- SectionKind Kind,
- StringRef COMDATSymName, int Selection,
- const char *BeginSymName = nullptr);
+ MCSectionCOFF *getCOFFSection(StringRef Section, unsigned Characteristics,
+ SectionKind Kind, StringRef COMDATSymName,
+ int Selection,
+ const char *BeginSymName = nullptr);
- const MCSectionCOFF *getCOFFSection(StringRef Section,
- unsigned Characteristics,
- SectionKind Kind,
- const char *BeginSymName = nullptr);
+ MCSectionCOFF *getCOFFSection(StringRef Section, unsigned Characteristics,
+ SectionKind Kind,
+ const char *BeginSymName = nullptr);
- const MCSectionCOFF *getCOFFSection(StringRef Section);
+ MCSectionCOFF *getCOFFSection(StringRef Section);
/// Gets or creates a section equivalent to Sec that is associated with the
/// section containing KeySym. For example, to create a debug info section
/// associated with an inline function, pass the normal debug info section
/// as Sec and the function symbol as KeySym.
- const MCSectionCOFF *getAssociativeCOFFSection(const MCSectionCOFF *Sec,
- const MCSymbol *KeySym);
+ MCSectionCOFF *getAssociativeCOFFSection(MCSectionCOFF *Sec,
+ const MCSymbol *KeySym);
+
+ // Create and save a copy of STI and return a reference to the copy.
+ MCSubtargetInfo &getSubtargetCopy(const MCSubtargetInfo &STI);
/// @}
void setGenDwarfFileNumber(unsigned FileNumber) {
GenDwarfFileNumber = FileNumber;
}
- MapVector<const MCSection *, std::pair<MCSymbol *, MCSymbol *>> &
- getGenDwarfSectionSyms() {
- return SectionStartEndSyms;
+ const SetVector<MCSection *> &getGenDwarfSectionSyms() {
+ return SectionsForRanges;
}
- std::pair<MapVector<const MCSection *,
- std::pair<MCSymbol *, MCSymbol *>>::iterator,
- bool>
- addGenDwarfSection(const MCSection *Sec) {
- return SectionStartEndSyms.insert(
- std::make_pair(Sec, std::make_pair(nullptr, nullptr)));
+ bool addGenDwarfSection(MCSection *Sec) {
+ return SectionsForRanges.insert(Sec);
}
+
void finalizeDwarfSections(MCStreamer &MCOS);
const std::vector<MCGenDwarfLabelEntry> &getMCGenDwarfLabelEntries() const {
return MCGenDwarfLabelEntries;
}
void deallocate(void *Ptr) {}
+ bool hadError() { return HadError; }
+ void reportError(SMLoc L, const Twine &Msg);
// Unrecoverable error has occurred. Display the best diagnostic we can
// and bail via exit(1). For now, most MC backend errors are unrecoverable.
// FIXME: We should really do something about that.
LLVM_ATTRIBUTE_NORETURN void reportFatalError(SMLoc L,
- const Twine &Msg) const;
+ const Twine &Msg);
};
} // end namespace llvm
/// allocator supports it).
/// \return The allocated memory. Could be NULL.
inline void *operator new(size_t Bytes, llvm::MCContext &C,
- size_t Alignment = 8) throw() {
+ size_t Alignment = 8) LLVM_NOEXCEPT {
return C.allocate(Bytes, Alignment);
}
/// \brief Placement delete companion to the new above.
/// invoking it directly; see the new operator for more details. This operator
/// is called implicitly by the compiler if a placement new expression using
/// the MCContext throws in the object constructor.
-inline void operator delete(void *Ptr, llvm::MCContext &C, size_t)
- throw () {
+inline void operator delete(void *Ptr, llvm::MCContext &C,
+ size_t) LLVM_NOEXCEPT {
C.deallocate(Ptr);
}
/// \param Alignment The alignment of the allocated memory (if the underlying
/// allocator supports it).
/// \return The allocated memory. Could be NULL.
-inline void *operator new[](size_t Bytes, llvm::MCContext& C,
- size_t Alignment = 8) throw() {
+inline void *operator new[](size_t Bytes, llvm::MCContext &C,
+ size_t Alignment = 8) LLVM_NOEXCEPT {
return C.allocate(Bytes, Alignment);
}
/// invoking it directly; see the new[] operator for more details. This operator
/// is called implicitly by the compiler if a placement new[] expression using
/// the MCContext throws in the object constructor.
-inline void operator delete[](void *Ptr, llvm::MCContext &C) throw () {
+inline void operator delete[](void *Ptr, llvm::MCContext &C) LLVM_NOEXCEPT {
C.deallocate(Ptr);
}
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