Add a kSimd128 machine type for Turbofan.

src/arm/assembler-arm.h

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // 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.
 //
@@ skipping 267 matching lines @@
     *m = (encoded_code & 0x10) >> 4;
     *vm = encoded_code & 0x0F;
   }
 
   int reg_code;
 };
 
 
 typedef QwNeonRegister QuadRegister;
 
+typedef QwNeonRegister Simd128Register;
 
 // Support for the VFP registers s0 to s31 (d0 to d15).
 // Note that "s(N):s(N+1)" is the same as "d(N/2)".
 const SwVfpRegister s0  = {  0 };
 const SwVfpRegister s1  = {  1 };
 const SwVfpRegister s2  = {  2 };
 const SwVfpRegister s3  = {  3 };
 const SwVfpRegister s4  = {  4 };
 const SwVfpRegister s5  = {  5 };
 const SwVfpRegister s6  = {  6 };
@@ skipping 1344 matching lines @@
   explicit EnsureSpace(Assembler* assembler) {
     assembler->CheckBuffer();
   }
 };
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_ARM_ASSEMBLER_ARM_H_