Mark the eh.typeid.for intrinsic as being 'const', which it is inside

[oota-llvm.git] / include / llvm / MC / MCSymbol.h

diff --git a/include/llvm/MC/MCSymbol.h b/include/llvm/MC/MCSymbol.h
index 2ee7dd44cff172ec049286cdcca3f2be4b3848df..0583ce56820b08d2dc01ace823857055d89c90da 100644 (file)
--- a/include/llvm/MC/MCSymbol.h
+++ b/include/llvm/MC/MCSymbol.h
@@ -52,10 +52,15 @@ namespace llvm {
     /// "Lfoo" or ".foo".
     unsigned IsTemporary : 1;
 
+    /// IsUsed - True if this symbol has been used.
+    mutable unsigned IsUsed : 1;
+
   private:  // MCContext creates and uniques these.
+    friend class MCExpr;
     friend class MCContext;
     MCSymbol(StringRef name, bool isTemporary)
-      : Name(name), Section(0), Value(0), IsTemporary(isTemporary) {}
+      : Name(name), Section(0), Value(0),
+        IsTemporary(isTemporary), IsUsed(false) {}
 
     MCSymbol(const MCSymbol&);       // DO NOT IMPLEMENT
     void operator=(const MCSymbol&); // DO NOT IMPLEMENT
@@ -63,13 +68,15 @@ namespace llvm {
     /// getName - Get the symbol name.
     StringRef getName() const { return Name; }
 
-    /// @name Symbol Type
+    /// @name Accessors
     /// @{
 
     /// isTemporary - Check if this is an assembler temporary symbol.
-    bool isTemporary() const {
-      return IsTemporary;
-    }
+    bool isTemporary() const { return IsTemporary; }
+
+    /// isUsed - Check if this is used.
+    bool isUsed() const { return IsUsed; }
+    void setUsed(bool Value) const { IsUsed = Value; }
 
     /// @}
     /// @name Associated Sections
@@ -128,9 +135,15 @@ namespace llvm {
     /// 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);
 
     /// @}