Port code generator to x64.

runtime/vm/assembler_macros_x64.cc

 // Copyright (c) 2011, 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/globals.h"
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/assembler_macros.h"
 
 #include "vm/assembler.h"
 
 namespace dart {
 
 DECLARE_FLAG(bool, inline_alloc);
 
 #define __ assembler->
 
 // Static.
 void AssemblerMacros::TryAllocate(Assembler* assembler,
                                   const Class& cls,
                                   Register class_reg,
                                   Label* failure,
                                   Register instance_reg) {
 #if defined(DEBUG)
   __ Untested("AssemblerMacros::TryAllocate");
   Label ok;
   __ LoadObject(instance_reg, cls);
-  __ cmpl(instance_reg, class_reg);
+  __ cmpq(instance_reg, class_reg);
   __ j(EQUAL, &ok, Assembler::kNearJump);
   __ Stop("AssemblerMacros::TryAllocate, wrong arguments");
   __ Bind(&ok);
 #endif
   ASSERT(failure != NULL);
   ASSERT(class_reg != instance_reg);
   if (FLAG_inline_alloc) {
     Heap* heap = Isolate::Current()->heap();
     const intptr_t instance_size = cls.instance_size();
-    __ movq(instance_reg, Address::Absolute(heap->TopAddress()));
+    __ movq(TMP, Immediate(heap->TopAddress()));
+    __ movq(instance_reg, Address(TMP, 0));
     __ addq(instance_reg, Immediate(instance_size));
     // instance_reg: potential next object start.
-    __ cmpq(instance_reg, Address::Absolute(heap->EndAddress()));
+    __ movq(TMP, Immediate(heap->EndAddress()));
+    __ cmpq(instance_reg, Address(TMP, 0));
     __ j(ABOVE_EQUAL, failure, Assembler::kNearJump);
     // Successfully allocated the object, now update top to point to
     // next object start and store the class in the class field of object.
-    __ movq(Address::Absolute(heap->TopAddress()), instance_reg);
+    __ movq(TMP, Immediate(heap->TopAddress()));
+    __ movq(Address(TMP, 0), instance_reg);
     ASSERT(instance_size >= kHeapObjectTag);
     __ subq(instance_reg, Immediate(instance_size - kHeapObjectTag));
     __ movq(FieldAddress(instance_reg, Instance::class_offset()), class_reg);
   } else {
     __ jmp(failure);
   }
 }
 
 #undef __
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64