Port object tests to x64.

runtime/vm/assembler_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.h"
 #include "vm/heap.h"
 #include "vm/memory_region.h"
@@ skipping 1106 matching lines @@
     if (value == 1) {
       decq(reg);
     } else if (value != 0) {
       subq(reg, Immediate(value));
     }
   }
 }
 
 
 void Assembler::LoadObject(Register dst, const Object& object) {
-  UNIMPLEMENTED();
   ASSERT(object.IsZoneHandle());
   AssemblerBuffer::EnsureCapacity ensured(&buffer_);
-  EmitUint8(0xB8 + dst);
+  EmitRegisterREX(dst, REX_W);
+  EmitUint8(0xB8 | (dst & 7));
   buffer_.EmitObject(object);
 }
 
 
 void Assembler::PushObject(const Object& object) {
-  UNIMPLEMENTED();
-  ASSERT(object.IsZoneHandle());
-  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
-  EmitUint8(0x68);
-  buffer_.EmitObject(object);
+  LoadObject(R11, object);
+  pushq(R11);

[srdjan, 2011/12/01 01:26:07]

Should we label R11 as scratch register?

[regis, 2011/12/01 01:42:04]

Defined alias TMP as R11.

 }
 
 
 void Assembler::CompareObject(Register reg, const Object& object) {
-  UNIMPLEMENTED();
-  ASSERT(object.IsZoneHandle());
-  AssemblerBuffer::EnsureCapacity ensured(&buffer_);
-  if (reg == RAX) {
-    EmitUint8(0x05 + (7 << 3));
-    buffer_.EmitObject(object);
-  } else {
-    EmitUint8(0x81);
-    EmitOperand(7, Operand(reg));
-    buffer_.EmitObject(object);
-  }
+  ASSERT(reg != R11);
+  LoadObject(R11, object);
+  cmpq(reg, R11);
 }
 
 
 void Assembler::Stop(const char* message) {
   // Emit the lower half and the higher half of the message address as immediate
   // operands in the test rax instructions, followed by the int3 instruction.
   // Execution can be resumed with the 'cont' command in gdb.
   int64_t message_address = reinterpret_cast<int64_t>(message);
   testl(RAX, Immediate(Utils::Low32Bits(message_address)));
   testl(RAX, Immediate(Utils::High32Bits(message_address)));
@@ skipping 137 matching lines @@
   } else {
     EmitRegisterREX(operand, REX_NONE);
   }
   EmitUint8(0xD3);
   EmitOperand(rm, Operand(operand));
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64