MIPS: Faster memcpy.

src/mips/disasm-mips.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 881 matching lines @@
       break;
     case LBU:
       Format(instr, "lbu     'rt, 'imm16s('rs)");
       break;
     case LHU:
       Format(instr, "lhu     'rt, 'imm16s('rs)");
       break;
     case LWR:
       Format(instr, "lwr     'rt, 'imm16s('rs)");
       break;
+    case PREF:
+      Format(instr, "pref    'rt, 'imm16s('rs)");
+      break;
     case SB:
       Format(instr, "sb      'rt, 'imm16s('rs)");
       break;
     case SH:
       Format(instr, "sh      'rt, 'imm16s('rs)");
       break;
     case SWL:
       Format(instr, "swl     'rt, 'imm16s('rs)");
       break;
     case SW:
@@ skipping 140 matching lines @@
         prev_pc, *reinterpret_cast<int32_t*>(prev_pc), buffer.start());
   }
 }
 
 
 #undef UNSUPPORTED
 
 }  // namespace disasm
 
 #endif  // V8_TARGET_ARCH_MIPS