Revert of [ia32] Fixes a bug in cmpw.

src/ia32/disasm-ia32.cc

Index: src/ia32/disasm-ia32.cc
diff --git a/src/ia32/disasm-ia32.cc b/src/ia32/disasm-ia32.cc
index be3530cb3d01f9d4a5328ef2a3f13b9534812a13..8e8039ca412c14ab15e1bbfca53af539fc74fee0 100644
--- a/src/ia32/disasm-ia32.cc
+++ b/src/ia32/disasm-ia32.cc
@@ -1622,19 +1622,11 @@
         while (*data == 0x66) data++;
         if (*data == 0xf && data[1] == 0x1f) {
           AppendToBuffer("nop");  // 0x66 prefix
-        } else if (*data == 0x39) {
+        } else if (*data == 0x90) {
+          AppendToBuffer("nop");  // 0x66 prefix
+        } else if (*data == 0x8B) {
           data++;
-          data += PrintOperands("cmpw", OPER_REG_OP_ORDER, data);
-        } else if (*data == 0x3B) {
-          data++;
-          data += PrintOperands("cmpw", REG_OPER_OP_ORDER, data);
-        } else if (*data == 0x81) {
-          data++;
-          AppendToBuffer("cmpw ");
-          data += PrintRightOperand(data);
-          int imm = *reinterpret_cast<int16_t*>(data);
-          AppendToBuffer(",0x%x", imm);
-          data += 2;
+          data += PrintOperands("mov_w", REG_OPER_OP_ORDER, data);
         } else if (*data == 0x87) {
           data++;
           int mod, regop, rm;
@@ -1648,11 +1640,6 @@
           AppendToBuffer("mov_w ");
           data += PrintRightOperand(data);
           AppendToBuffer(",%s", NameOfCPURegister(regop));
-        } else if (*data == 0x8B) {
-          data++;
-          data += PrintOperands("mov_w", REG_OPER_OP_ORDER, data);
-        } else if (*data == 0x90) {
-          AppendToBuffer("nop");  // 0x66 prefix
         } else if (*data == 0xC7) {
           data++;
           AppendToBuffer("%s ", "mov_w");