Add signMask getter to Float32x4

runtime/vm/disassembler_ia32.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/disassembler.h"
 
 #include "vm/globals.h"  // Needed here to get TARGET_ARCH_IA32.
 #if defined(TARGET_ARCH_IA32)
 #include "platform/utils.h"
 #include "vm/allocation.h"
@@ skipping 1374 matching lines @@
             data += PrintRightOperand(data);
           } else if (IsTwoXmmRegInstruction(f0byte)) {
             int mod, regop, rm;
             GetModRm(*data, &mod, &regop, &rm);
             Print(f0mnem);
             Print(" ");
             PrintXmmRegister(regop);
             Print(",");
             data += PrintRightXmmOperand(data);
           } else if (f0byte == 0x50) {
-            Print("movmskpd ");
+            Print("movmskps ");
             int mod, regop, rm;
             GetModRm(*data, &mod, &regop, &rm);
             PrintCPURegister(regop);
             Print(",");
             data += PrintRightXmmOperand(data);
           } else if (f0byte == 0xC2 || f0byte == 0xC6) {
             if (f0byte == 0xC2)
               Print("cmpps ");
             else
               Print("shufps ");
@@ skipping 412 matching lines @@
                                   pc);
     pc += instruction_length;
   }
 
   return;
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_IA32