Fix vm code base so that it can be built for --arch=simarm (no snapshot yet).

runtime/vm/constants_ia32.h

-// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2013, 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.
 
 #ifndef VM_CONSTANTS_IA32_H_
 #define VM_CONSTANTS_IA32_H_
 
 #include "platform/assert.h"
 
 namespace dart {
 
@@ skipping 32 matching lines @@
   XMM3 = 3,
   XMM4 = 4,
   XMM5 = 5,
   XMM6 = 6,
   XMM7 = 7,
   kNumberOfXmmRegisters = 8,
   kNoXmmRegister = -1  // Signals an illegal register.
 };
 
 
+// Architecture independent aliases.
+typedef XmmRegister FpuRegister;
+const FpuRegister FpuTMP = XMM0;
+const int kNumberOfFpuRegisters = kNumberOfXmmRegisters;
+
+
 // Register aliases.
 const Register TMP = kNoRegister;  // No scratch register used by assembler.
 const Register CTX = ESI;          // Caches current context in generated code.
 const Register SPREG = ESP;
 const Register FPREG = EBP;
 
 // Exception object is passed in this register to the catch handlers when an
 // exception is thrown.
 const Register kExceptionObjectReg = EAX;
 
@@ skipping 62 matching lines @@
 };
 
 
 // The largest multibyte nop we will emit.  This could go up to 15 if it
 // becomes important to us.
 const int MAX_NOP_SIZE = 8;
 
 }  // namespace dart
 
 #endif  // VM_CONSTANTS_IA32_H_