Subzero: Make the register allocator more robust with -reg-use and -reg-exclude.

src/IceCfg.h

 //===- subzero/src/IceCfg.h - Control flow graph ----------------*- C++ -*-===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
@@ skipping 46 matching lines @@
   /// If the argument is omitted, it checks if any verbose options at all are
   /// set.
   bool isVerbose(VerboseMask Mask = defaultVerboseMask()) const {
     return VMask & Mask;
   }
   void setVerbose(VerboseMask Mask) { VMask = Mask; }
 
   /// \name Manage the name and return type of the function being translated.
   /// @{
   void setFunctionName(const IceString &Name) { FunctionName = Name; }
-  IceString getFunctionName() const { return FunctionName; }
+  const IceString &getFunctionName() const { return FunctionName; }
+  IceString getFunctionNameAndSize() const;
   void setReturnType(Type Ty) { ReturnType = Ty; }
   Type getReturnType() const { return ReturnType; }
   /// @}
 
   /// \name Manage the "internal" attribute of the function.
   /// @{
   void setInternal(bool Internal) { IsInternalLinkage = Internal; }
   bool getInternal() const { return IsInternalLinkage; }
   /// @}
 
@@ skipping 231 matching lines @@
 
 public:
   static void TlsInit() { ICE_TLS_INIT_FIELD(CurrentCfg); }
 };
 
 template <> Variable *Cfg::makeVariable<Variable>(Type Ty);
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICECFG_H