More code for ia32, more shared code.

runtime/vm/assembler_ia32.h

 // 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.
 
 #ifndef VM_ASSEMBLER_IA32_H_
 #define VM_ASSEMBLER_IA32_H_
 
 #ifndef VM_ASSEMBLER_H_
 #error Do not include assembler_ia32.h directly; use assembler.h instead.
 #endif
@@ skipping 482 matching lines @@
   void j(Condition condition, const ExternalLabel* label);
 
   void jmp(Register reg);
   void jmp(Label* label, bool near = kFarJump);
   void jmp(const ExternalLabel* label);
 
   void lock();
   void cmpxchgl(const Address& address, Register reg);
 
   /*
-   * Macros for High-level operations.
+   * Macros for High-level operations and implemented on all architectures.
    */
+
+  void CompareRegisters(Register a, Register b);
+
+  // Issues a move instruction if 'to' is not the same as 'from'.
+  void MoveRegister(Register to, Register from);
+
   void AddImmediate(Register reg, const Immediate& imm);
 
   void Drop(intptr_t stack_elements);
 
   void LoadObject(Register dst, const Object& object);
   void PushObject(const Object& object);
   void CompareObject(Register reg, const Object& object);
   void LoadDoubleConstant(XmmRegister dst, double value);
 
   void StoreIntoObject(Register object,  // Object we are storing into.
@@ skipping 133 matching lines @@
 }
 
 
 inline void Assembler::EmitOperandSizeOverride() {
   EmitUint8(0x66);
 }
 
 }  // namespace dart
 
 #endif  // VM_ASSEMBLER_IA32_H_