Reserve space for scalar FP returns in the stack frame

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 48 matching lines @@
   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; }
   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; }
   /// @}
 
   /// \name Manage errors.
   /// @{
@@ skipping 229 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