[x64] Implement vmovd and vmovq AVX instructions.

src/x64/disasm-x64.cc

Index: src/x64/disasm-x64.cc
diff --git a/src/x64/disasm-x64.cc b/src/x64/disasm-x64.cc
index 557eaf00904d78324c2cb93edc7ea84fe13a960f..9f453d16177056f202ab02a318b0b6c930d97a83 100644
--- a/src/x64/disasm-x64.cc
+++ b/src/x64/disasm-x64.cc
@@ -351,6 +351,11 @@ class DisassemblerX64 {
 
   bool rex_w() { return (rex_ & 0x08) != 0; }
 
+  bool vex_w() {
+    DCHECK(vex_byte0_ == VEX3_PREFIX || vex_byte0_ == VEX2_PREFIX);
+    return vex_byte0_ == VEX3_PREFIX ? (vex_byte2_ & 0x80) != 0 : false;
+  }
+
   bool vex_128() {
     DCHECK(vex_byte0_ == VEX3_PREFIX || vex_byte0_ == VEX2_PREFIX);
     byte checked = vex_byte0_ == VEX3_PREFIX ? vex_byte2_ : vex_byte1_;
@@ -1191,6 +1196,16 @@ int DisassemblerX64::AVXInstruction(byte* data) {
                        NameOfXMMRegister(vvvv));
         current += PrintRightXMMOperand(current);
         break;
+      case 0x6e:
+        AppendToBuffer("vmov%c %s,", vex_w() ? 'q' : 'd',
+                       NameOfXMMRegister(regop));
+        current += PrintRightOperand(current);
+        break;
+      case 0x7e:
+        AppendToBuffer("vmov%c ", vex_w() ? 'q' : 'd');
+        current += PrintRightOperand(current);
+        AppendToBuffer(",%s", NameOfXMMRegister(regop));
+        break;
       default:
         UnimplementedInstruction();
     }