#include "llvm/MC/MCSymbol.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/MC/MCContext.h"
#include "llvm/MC/MCExpr.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
MCFragment *MCSymbol::AbsolutePseudoFragment =
reinterpret_cast<MCFragment *>(4);
void *MCSymbol::operator new(size_t s, const StringMapEntry<bool> *Name,
MCContext &Ctx) {
size_t Size = s + (Name ? sizeof(NameEntryStorageTy) : 0);
static_assert((unsigned)AlignOf<MCSymbol>::Alignment <=
AlignOf<NameEntryStorageTy>::Alignment,
"Bad alignment of MCSymbol");
void *Storage = Ctx.allocate(Size, alignOf<NameEntryStorageTy>());
NameEntryStorageTy *Start = static_cast<NameEntryStorageTy*>(Storage);
NameEntryStorageTy *End = Start + (Name ? 1 : 0);
return End;
}
void MCSymbol::setVariableValue(const MCExpr *Value) {
assert(!IsUsed && "Cannot set a variable that has already been used.");
assert(Value && "Invalid variable value!");
assert((SymbolContents == SymContentsUnset ||
SymbolContents == SymContentsVariable) &&
"Cannot give common/offset symbol a variable value");
this->Value = Value;
SymbolContents = SymContentsVariable;
setUndefined();
}
void MCSymbol::print(raw_ostream &OS, const MCAsmInfo *MAI) const {
StringRef Name = getName();
if (!MAI || MAI->isValidUnquotedName(Name)) {
OS << Name;
return;
}
if (MAI && !MAI->supportsNameQuoting())
report_fatal_error("Symbol name with unsupported characters");
OS << '"';
for (char C : Name) {
if (C == '\n')
OS << "\\n";
else if (C == '"')
OS << "\\\"";
else
OS << C;
}
OS << '"';
}
#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
void MCSymbol::dump() const { dbgs() << *this; }
#endif