/// "Lfoo" or ".foo".
unsigned IsTemporary : 1;
- /// IsUsedInExpr - True if this symbol has been used in an expression and
- /// cannot be redefined.
- unsigned IsUsedInExpr : 1;
+ /// IsUsed - True if this symbol has been used.
+ mutable unsigned IsUsed : 1;
private: // MCContext creates and uniques these.
friend class MCContext;
MCSymbol(StringRef name, bool isTemporary)
: Name(name), Section(0), Value(0),
- IsTemporary(isTemporary), IsUsedInExpr(false) {}
+ IsTemporary(isTemporary), IsUsed(false) {}
MCSymbol(const MCSymbol&); // DO NOT IMPLEMENT
void operator=(const MCSymbol&); // DO NOT IMPLEMENT
/// isTemporary - Check if this is an assembler temporary symbol.
bool isTemporary() const { return IsTemporary; }
- /// isUsedInExpr - Check if this is an assembler temporary symbol.
- bool isUsedInExpr() const { return IsUsedInExpr; }
- void setUsedInExpr(bool Value) { IsUsedInExpr = Value; }
+ /// isUsed - Check if this is used.
+ bool isUsed() const { return IsUsed; }
+ void setUsed(bool Value) const { IsUsed = Value; }
/// @}
/// @name Associated Sections
/// getValue() - Get the value for variable symbols.
const MCExpr *getVariableValue() const {
assert(isVariable() && "Invalid accessor!");
+ IsUsed = true;
return Value;
}
+ // AliasedSymbol() - If this is an alias (a = b), return the symbol
+ // we ultimately point to. For a non alias, this just returns the symbol
+ // itself.
+ const MCSymbol &AliasedSymbol() const;
+
void setVariableValue(const MCExpr *Value);
/// @}