#include <string>
#include "llvm/ADT/StringRef.h"
-#include "llvm/Support/DataTypes.h"
+#include "llvm/System/DataTypes.h"
namespace llvm {
+ class MCAsmInfo;
+ class MCExpr;
class MCSection;
class MCContext;
class raw_ostream;
/// absolute symbols.
const MCSection *Section;
+ /// Value - If non-null, the value for a variable symbol.
+ const MCExpr *Value;
+
/// IsTemporary - True if this is an assembler temporary label, which
/// typically does not survive in the .o file's symbol table. Usually
/// "Lfoo" or ".foo".
private: // MCContext creates and uniques these.
friend class MCContext;
- MCSymbol(const StringRef &_Name, bool _IsTemporary)
- : Name(_Name), Section(0), IsTemporary(_IsTemporary) {}
-
+ MCSymbol(const StringRef &_Name, bool _IsTemporary)
+ : Name(_Name), Section(0), Value(0), IsTemporary(_IsTemporary) {}
+
MCSymbol(const MCSymbol&); // DO NOT IMPLEMENT
void operator=(const MCSymbol&); // DO NOT IMPLEMENT
public:
/// @name Symbol Type
/// @{
+ /// isTemporary - Check if this is an assembler temporary symbol.
+ bool isTemporary() const {
+ return IsTemporary;
+ }
+
+ /// @}
+ /// @name Associated Sections
+ /// @{
+
+ /// isDefined - Check if this symbol is defined (i.e., it has an address).
+ ///
+ /// Defined symbols are either absolute or in some section.
+ bool isDefined() const {
+ return Section != 0;
+ }
+
/// isUndefined - Check if this symbol undefined (i.e., implicitly defined).
bool isUndefined() const {
- return Section == 0;
+ return !isDefined();
}
/// isAbsolute - Check if this this is an absolute symbol.
/// setAbsolute - Mark the symbol as absolute.
void setAbsolute() { Section = AbsolutePseudoSection; }
+ /// @}
+ /// @name Variable Symbols
+ /// @{
+
+ /// isVariable - Check if this is a variable symbol.
+ bool isVariable() const {
+ return Value != 0;
+ }
+
+ /// getValue() - Get the value for variable symbols, or null if the symbol
+ /// is not a variable.
+ const MCExpr *getValue() const { return Value; }
+
+ void setValue(const MCExpr *Value) {
+ this->Value = Value;
+ }
+
/// @}
/// print - Print the value to the stream \arg OS.
- void print(raw_ostream &OS) const;
+ void print(raw_ostream &OS, const MCAsmInfo *MAI) const;
/// dump - Print the value to stderr.
void dump() const;