Make fixups reference any constant (allow const float/double pool literals).

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.
 //
 //===----------------------------------------------------------------------===//
 //
 // This file declares the Cfg class, which represents the control flow
@@ skipping 25 matching lines @@
   // it through the callers, to make ownership and lifetime and
   // destruction requirements more explicit.
   static Cfg *create(GlobalContext *Ctx) {
     Cfg *Func = new Cfg(Ctx);
     CurrentCfg = Func;
     return Func;
   }
   // Gets a pointer to the current thread's Cfg.
   static const Cfg *getCurrentCfg() { return CurrentCfg; }
   // Gets a pointer to the current thread's Cfg's allocator.
-  static ArenaAllocator *getCurrentCfgAllocator() {
+  static ArenaAllocator<> *getCurrentCfgAllocator() {
     assert(CurrentCfg);
     return CurrentCfg->Allocator.get();
   }
 
   GlobalContext *getContext() const { return Ctx; }
 
   // Manage the name and return type of the function being translated.
   void setFunctionName(const IceString &Name) { FunctionName = Name; }
   IceString getFunctionName() const { return FunctionName; }
   void setReturnType(Type Ty) { ReturnType = Ty; }
@@ skipping 133 matching lines @@
   bool HasError;
   bool FocusedTiming;
   IceString ErrorMessage;
   CfgNode *Entry; // entry basic block
   NodeList Nodes; // linearized node list; Entry should be first
   std::vector<IceString> IdentifierNames;
   InstNumberT NextInstNumber;
   VarList Variables;
   VarList Args; // subset of Variables, in argument order
   VarList ImplicitArgs; // subset of Variables
-  std::unique_ptr<ArenaAllocator> Allocator;
+  std::unique_ptr<ArenaAllocator<>> Allocator;
   std::unique_ptr<Liveness> Live;
   std::unique_ptr<TargetLowering> Target;
   std::unique_ptr<VariablesMetadata> VMetadata;
   std::unique_ptr<Assembler> TargetAssembler;
 
   // CurrentNode is maintained during dumping/emitting just for
   // validating Variable::DefNode.  Normally, a traversal over
   // CfgNodes maintains this, but before global operations like
   // register allocation, resetCurrentNode() should be called to avoid
   // spurious validation failures.
   const CfgNode *CurrentNode;
 
   // Maintain a pointer in TLS to the current Cfg being translated.
   // This is primarily for accessing its allocator statelessly, but
   // other uses are possible.
   thread_local static const Cfg *CurrentCfg;
 };
 
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICECFG_H