[x64] Emit vmovss when AVX is enabled.

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 490 matching lines @@
       __ vmulss(xmm0, xmm1, xmm2);
       __ vmulss(xmm0, xmm1, Operand(rbx, rcx, times_4, 10000));
       __ vsubss(xmm0, xmm1, xmm2);
       __ vsubss(xmm0, xmm1, Operand(rbx, rcx, times_4, 10000));
       __ vdivss(xmm0, xmm1, xmm2);
       __ vdivss(xmm0, xmm1, Operand(rbx, rcx, times_2, 10000));
       __ vminss(xmm8, xmm1, xmm2);
       __ vminss(xmm9, xmm1, Operand(rbx, rcx, times_8, 10000));
       __ vmaxss(xmm8, xmm1, xmm2);
       __ vmaxss(xmm9, xmm1, Operand(rbx, rcx, times_1, 10000));
+      __ vmovss(xmm9, Operand(r11, rcx, times_8, -10000));
+      __ vmovss(Operand(rbx, r9, times_4, 10000), xmm1);
       __ vucomiss(xmm9, xmm1);
       __ vucomiss(xmm8, Operand(rbx, rdx, times_2, 10981));
 
       __ vmovd(xmm5, rdi);
       __ vmovd(xmm9, Operand(rbx, rcx, times_4, 10000));
       __ vmovd(r9, xmm6);
       __ vmovq(xmm5, rdi);
       __ vmovq(xmm9, Operand(rbx, rcx, times_4, 10000));
       __ vmovq(r9, xmm6);
 
@@ skipping 226 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 __