Add pshufw instruction, fix inconsistencies with pextrw instruction.

test/cctest/test-disasm-x64.cc

 // Copyright 2011 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 248 matching lines @@
 
   __ testq(rdx, Immediate(12345));
   __ testq(Operand(rbx, rcx, times_8, 10000), rdx);
   __ testb(Operand(rcx, rbx, times_2, 1000), rdx);
   __ testb(Operand(rax, -20), Immediate(0x9A));
   __ nop();
 
   __ xorq(rdx, Immediate(12345));
   __ xorq(rdx, Operand(rbx, rcx, times_8, 10000));
   __ bts(Operand(rbx, rcx, times_8, 10000), rdx);
+  __ pshufw(xmm5, xmm1, 3);
   __ hlt();
   __ int3();
   __ ret(0);
   __ ret(8);
 
   // Calls
 
   Label L1, L2;
   __ bind(&L1);
   __ nop();
@@ skipping 233 matching lines @@
       CpuFeatureScope scope(&assm, SSSE3);
       SSSE3_INSTRUCTION_LIST(EMIT_SSE34_INSTR)
     }
   }
 
   {
     if (CpuFeatures::IsSupported(SSE4_1)) {
       CpuFeatureScope scope(&assm, SSE4_1);
       __ insertps(xmm5, xmm1, 123);
       __ extractps(rax, xmm1, 0);
+      __ pextrw(rbx, xmm2, 1);
       __ pextrd(rbx, xmm15, 0);
       __ pextrd(r12, xmm0, 1);
       __ pinsrd(xmm9, r9, 0);
       __ pinsrd(xmm5, Operand(rax, 4), 1);
 
       __ cmpps(xmm5, xmm1, 1);
       __ cmpps(xmm5, Operand(rbx, rcx, times_4, 10000), 1);
       __ cmpeqps(xmm5, xmm1);
       __ cmpeqps(xmm5, Operand(rbx, rcx, times_4, 10000));
       __ cmpltps(xmm5, xmm1);
@@ skipping 413 matching lines @@
 #ifdef OBJECT_PRINT
   OFStream os(stdout);
   code->Print(os);
   byte* begin = code->instruction_start();
   byte* end = begin + code->instruction_size();
   disasm::Disassembler::Disassemble(stdout, begin, end);
 #endif
 }
 
 #undef __