Subzero: Prototype to simplify makereg calls

src/IceTargetLoweringMIPS32.h

 //===- subzero/src/IceTargetLoweringMIPS32.h - MIPS32 lowering ---*- C++-*-===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
@@ skipping 209 matching lines @@
   };
   typedef uint32_t LegalMask;
   Operand *legalize(Operand *From, LegalMask Allowed = Legal_Default,
                     RegNumT RegNum = RegNumT());
 
   Variable *legalizeToVar(Operand *From, RegNumT RegNum = RegNumT());
 
   Variable *legalizeToReg(Operand *From, RegNumT RegNum = RegNumT());
 
   Variable *makeReg(Type Ty, RegNumT RegNum = RegNumT());
+
+  Variable *I32Reg(RegNumT RegNum = RegNumT()) {
+    return makeReg(IceType_i32, RegNum);
+  }
+
   static Type stackSlotType();
   Variable *copyToReg(Operand *Src, RegNumT RegNum = RegNumT());
 
   void addProlog(CfgNode *Node) override;
   void addEpilog(CfgNode *Node) override;
 
   // Ensure that a 64-bit Variable has been split into 2 32-bit
   // Variables, creating them if necessary.  This is needed for all
   // I64 operations.
   void split64(Variable *Var);
@@ skipping 93 matching lines @@
   explicit TargetHeaderMIPS32(GlobalContext *Ctx);
 
 private:
   ~TargetHeaderMIPS32() = default;
 };
 
 } // end of namespace MIPS32
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICETARGETLOWERINGMIPS32_H