SubZero: Correct parenthesis for mem operands with labels in MIPS32

src/IceInstMIPS32.h

 //===- subzero/src/IceInstMIPS32.h - MIPS32 machine instrs --*- C++ -*-===    //
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 ///
 /// \file
@@ skipping 499 matching lines @@
 
   void emit(const Cfg *Func) const override {
     if (!BuildDefs::dump())
       return;
     Ostream &Str = Func->getContext()->getStrEmit();
     assert(getSrcSize() == 2);
     Str << "\t" << Opcode << "\t";
     getSrc(0)->emit(Func);
     Str << ", ";
     emitRelocOp(Str, Reloc);
-    Str << (Reloc ? "(" : "");
     getSrc(1)->emit(Func);
-    Str << (Reloc ? ")" : "");
   }
 
   void emitIAS(const Cfg *Func) const override {
     (void)Func;
     llvm_unreachable("Not yet implemented");
   }
 
   void dump(const Cfg *Func) const override {
     if (!BuildDefs::dump())
       return;
@@ skipping 318 matching lines @@
 template <> void InstMIPS32Mtlo::emit(const Cfg *Func) const;
 template <> void InstMIPS32Mthi::emit(const Cfg *Func) const;
 template <> void InstMIPS32Mult::emit(const Cfg *Func) const;
 template <> void InstMIPS32Multu::emit(const Cfg *Func) const;
 template <> void InstMIPS32Lui::emit(const Cfg *Func) const;
 
 } // end of namespace MIPS32
 } // end of namespace Ice
 
 #endif // SUBZERO_SRC_ICEINSTMIPS32_H