1 files changed, 13 insertions, 2 deletions
diff --git a/include/llvm/IR/GlobalAlias.h b/include/llvm/IR/GlobalAlias.h
index 883814a..fec61a7 100644
--- a/include/llvm/IR/GlobalAlias.h
+++ b/include/llvm/IR/GlobalAlias.h
@@ -66,14 +66,25 @@ public:
   }
   /// getAliasedGlobal() - Aliasee can be either global or bitcast of
   /// global. This method retrives the global for both aliasee flavours.
-  const GlobalValue *getAliasedGlobal() const;
+  GlobalValue *getAliasedGlobal();
+  const GlobalValue *getAliasedGlobal() const {
+    return const_cast<GlobalAlias *>(this)->getAliasedGlobal();
+  }
 
   /// resolveAliasedGlobal() - This method tries to ultimately resolve the alias
   /// by going through the aliasing chain and trying to find the very last
   /// global. Returns NULL if a cycle was found. If stopOnWeak is false, then
   /// the whole chain aliasing chain is traversed, otherwise - only strong
   /// aliases.
-  const GlobalValue *resolveAliasedGlobal(bool stopOnWeak = true) const;
+  GlobalValue *resolveAliasedGlobal(bool stopOnWeak = true);
+  const GlobalValue *resolveAliasedGlobal(bool stopOnWeak = true) const {
+    return const_cast<GlobalAlias *>(this)->resolveAliasedGlobal(stopOnWeak);
+  }
+
+  static bool isValidLinkage(LinkageTypes L) {
+    return isExternalLinkage(L) || isLocalLinkage(L) ||
+      isWeakLinkage(L) || isLinkOnceLinkage(L);
+  }
 
   // Methods for support type inquiry through isa, cast, and dyn_cast:
   static inline bool classof(const Value *V) {