X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FMC%2FMCSymbol.h;h=fe927555c49b1bd1c054bf8c0d336dd1b7344864;hb=9ba9d4d76bfa8de2b05cbce02a5a3ff7d46cb331;hp=99e705e596f130dc0537a49ea62e5841a06bcf31;hpb=db9835d0895337eb94c19e3a30b7d3fc8fcddfd5;p=oota-llvm.git

diff --git a/include/llvm/MC/MCSymbol.h b/include/llvm/MC/MCSymbol.h
index 99e705e596f..fe927555c49 100644
--- a/include/llvm/MC/MCSymbol.h
+++ b/include/llvm/MC/MCSymbol.h
@@ -15,6 +15,7 @@
 #define LLVM_MC_MCSYMBOL_H
 
 #include "llvm/ADT/StringRef.h"
+#include "llvm/Support/Compiler.h"
 
 namespace llvm {
   class MCExpr;
@@ -56,13 +57,14 @@ namespace llvm {
     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), IsUsed(false) {}
 
-    MCSymbol(const MCSymbol&);       // DO NOT IMPLEMENT
-    void operator=(const MCSymbol&); // DO NOT IMPLEMENT
+    MCSymbol(const MCSymbol&) LLVM_DELETED_FUNCTION;
+    void operator=(const MCSymbol&) LLVM_DELETED_FUNCTION;
   public:
     /// getName - Get the symbol name.
     StringRef getName() const { return Name; }
@@ -111,7 +113,7 @@ namespace llvm {
       return *Section;
     }
 
-    /// setSection - Mark the symbol as defined in the section \arg S.
+    /// setSection - Mark the symbol as defined in the section \p S.
     void setSection(const MCSection &S) { Section = &S; }
 
     /// setUndefined - Mark the symbol as undefined.
@@ -131,18 +133,23 @@ namespace llvm {
       return Value != 0;
     }
 
-    /// getValue() - Get the value for variable symbols.
+    /// getVariableValue() - 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);
 
     /// @}
 
-    /// print - Print the value to the stream \arg OS.
+    /// print - Print the value to the stream \p OS.
     void print(raw_ostream &OS) const;
 
     /// dump - Print the value to stderr.