Subzero, MIPS32: Extend InstMIPS32Mov to support different data types

src/IceInstMIPS32.cpp

 //===- subzero/src/IceInstMips32.cpp - Mips32 instruction implementation --===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 /// \file
@@ skipping 581 matching lines @@
       ActualOpcode = "mov.s";
       break;
     case IceType_f64:
       ActualOpcode = "mov.d";
       break;
     case IceType_i1:
     case IceType_i8:
     case IceType_i16:
     case IceType_i32:
       Str << "\t"
-             "add"
+             "or"
              "\t";
       getDest()->emit(Func);
       Str << ", $zero, ";
       getSrc(0)->emit(Func);
       return;
     default:
       UnimplementedError(getFlags());
       return;
     }
 
@@ skipping 60 matching lines @@
     getSrc(0)->emit(Func);
     return;
   }
 
   // stack to stack
   llvm::report_fatal_error("mov cant copy stack to stack.");
 }
 
 } // end of namespace MIPS32
 } // end of namespace Ice