For PR387:
Close out this long standing bug by removing the remaining overloaded
virtual functions in LLVM. The -Woverloaded-virtual option is now turned on.

llvm-svn: 29934
diff --git a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
index 067063d..31e209a 100644
--- a/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
+++ b/llvm/lib/Target/PowerPC/PPCISelLowering.cpp
@@ -2691,3 +2691,7 @@
   // PPC allows a sign-extended 16-bit immediate field.
   return (V > -(1 << 16) && V < (1 << 16)-1);
 }
+
+bool PPCTargetLowering::isLegalAddressImmediate(llvm::GlobalValue* GV) const {
+  return TargetLowering::isLegalAddressImmediate(GV); 
+}