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

runtime/vm/assembler_x64.h

Index: runtime/vm/assembler_x64.h
===================================================================
--- runtime/vm/assembler_x64.h	(revision 17160)
+++ runtime/vm/assembler_x64.h	(working copy)
@@ -1,4 +1,4 @@
-// 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.
 
@@ -31,13 +31,11 @@
 
  private:
   const int64_t value_;
-
-  // TODO(5411081): Add DISALLOW_COPY_AND_ASSIGN(Immediate) once the mac
-  // build issue is resolved.
+  DISALLOW_COPY_AND_ASSIGN(Immediate);
 };
 
 
-class Operand : public ValueObject {
+class Operand {
  public:
   uint8_t rex() const {
     return rex_;
@@ -76,8 +74,19 @@
     return bit_copy<int32_t>(encoding_[length_ - 4]);
   }
 
+  Operand(const Operand& other) : length_(other.length_), rex_(other.rex_) {
+    memmove(&encoding_[0], &other.encoding_[0], other.length_);
+  }
+
+  Operand& operator=(const Operand& other) {
+    length_ = other.length_;
+    rex_ = other.rex_;
+    memmove(&encoding_[0], &other.encoding_[0], other.length_);
+    return *this;
+  }
+
  protected:
-  Operand() : length_(0), rex_(REX_NONE) { }
+  Operand() : length_(0), rex_(REX_NONE) { }  // Needed by subclass Address.
 
   void SetModRM(int mod, Register rm) {
     ASSERT((mod & ~3) == 0);
@@ -132,11 +141,7 @@
         && ((encoding_at(0) & 0x07) == reg);  // Register codes match.
   }
 
-
   friend class Assembler;
-
-  // TODO(5411081): Add DISALLOW_COPY_AND_ASSIGN(Operand) once the mac
-  // build issue is resolved.
 };
 
 
@@ -186,20 +191,29 @@
     }
   }
 
- private:
-  Address() {}
+  Address(const Address& other) : Operand(other) { }
 
-  // TODO(5411081): Add DISALLOW_COPY_AND_ASSIGN(Address) once the mac
-  // build issue is resolved.
+  Address& operator=(const Address& other) {
+    Operand::operator=(other);
+    return *this;
+  }
 };
 
 
 class FieldAddress : public Address {
  public:
   FieldAddress(Register base, int32_t disp)
-      : Address(base, disp - kHeapObjectTag) {}
+      : Address(base, disp - kHeapObjectTag) { }
+
   FieldAddress(Register base, Register index, ScaleFactor scale, int32_t disp)
-      : Address(base, index, scale, disp - kHeapObjectTag) {}
+      : Address(base, index, scale, disp - kHeapObjectTag) { }
+
+  FieldAddress(const FieldAddress& other) : Address(other) { }
+
+  FieldAddress& operator=(const FieldAddress& other) {
+    Address::operator=(other);
+    return *this;
+  }
 };
 
 
@@ -656,7 +670,7 @@
 
   static const char* RegisterName(Register reg);
 
-  static const char* XmmRegisterName(XmmRegister reg);
+  static const char* FpuRegisterName(FpuRegister reg);
 
  private:
   AssemblerBuffer buffer_;