[x64] Fix the assembler and the disassembler.

test/cctest/test-disasm-x64.cc

Index: test/cctest/test-disasm-x64.cc
diff --git a/test/cctest/test-disasm-x64.cc b/test/cctest/test-disasm-x64.cc
index 29c58e36622062a5b95d09bc2a2e63c44c1f31a5..64d97ea3c8108559a55b8edfcb873d0ae3bcd311 100644
--- a/test/cctest/test-disasm-x64.cc
+++ b/test/cctest/test-disasm-x64.cc
@@ -458,6 +458,7 @@ TEST(DisasmX64) {
     __ pcmpeqd(xmm1, xmm0);
 
     __ punpckldq(xmm1, xmm11);
+    __ punpckldq(xmm5, Operand(rdx, 4));
     __ punpckhdq(xmm8, xmm15);
   }
 
@@ -518,8 +519,6 @@ TEST(DisasmX64) {
       __ pmulld(xmm5, Operand(rdx, 4));
       __ pmuludq(xmm5, xmm1);
       __ pmuludq(xmm5, Operand(rdx, 4));
-      __ punpackldq(xmm5, xmm1);
-      __ punpackldq(xmm5, Operand(rdx, 4));
       __ psrldq(xmm5, 123);
       __ pshufd(xmm5, xmm1, 3);
       __ cvtps2dq(xmm5, xmm1);