Fix handling of relocation names, so that prefix mangling works.

src/IceOperand.cpp

 //===- subzero/src/IceOperand.cpp - High-level operand implementation -----===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file implements the Operand class and its target-independent
@@ skipping 442 matching lines @@
     Str << Name;
   else
     Str << Ctx->mangleName(Name);
   if (Offset) {
     if (Offset > 0)
       Str << "+";
     Str << Offset;
   }
 }
 
-void ConstantRelocatable::dump(const Cfg *, Ostream &Str) const {
-  Str << "@" << Name;
+void ConstantRelocatable::dump(const Cfg *Func, Ostream &Str) const {
+  Str << "@";
+  if (Func && !SuppressMangling) {
+    Str << Func->getContext()->mangleName(Name);
+  } else {
+    Str << Name;
+  }
   if (Offset)
     Str << "+" << Offset;
 }
 
 void LiveRange::dump(Ostream &Str) const {
   Str << "(weight=" << Weight << ") ";
   bool First = true;
   for (const RangeElementType &I : Range) {
     if (!First)
       Str << ", ";
     First = false;
     Str << "[" << I.first << ":" << I.second << ")";
   }
 }
 
 Ostream &operator<<(Ostream &Str, const LiveRange &L) {
   L.dump(Str);
   return Str;
 }
 
 Ostream &operator<<(Ostream &Str, const RegWeight &W) {
   if (W.getWeight() == RegWeight::Inf)
     Str << "Inf";
   else
     Str << W.getWeight();
   return Str;
 }
 
 } // end of namespace Ice