Compute next field offset correctly.

runtime/vm/stub_code_mips.cc

 // 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.
 
 #include "vm/globals.h"
 #if defined(TARGET_ARCH_MIPS)
 
 #include "vm/assembler.h"
 #include "vm/code_generator.h"
 #include "vm/compiler.h"
@@ skipping 1326 matching lines @@
     __ LoadImmediate(T7, reinterpret_cast<intptr_t>(Object::null()));
 
     // Initialize the remaining words of the object.
     // T2: new object start.
     // T3: next object start.
     // T1: new object type arguments (if is_cls_parameterized).
     // First try inlining the initialization without a loop.
     if (instance_size < (kInlineInstanceSize * kWordSize)) {
       // Check if the object contains any non-header fields.
       // Small objects are initialized using a consecutive set of writes.
-      for (intptr_t current_offset = sizeof(RawObject);
+      for (intptr_t current_offset = Instance::NextFieldOffset();
            current_offset < instance_size;
            current_offset += kWordSize) {
         __ sw(T7, Address(T2, current_offset));
       }
     } else {
-      __ addiu(T4, T2, Immediate(sizeof(RawObject)));
+      __ addiu(T4, T2, Immediate(Instance::NextFieldOffset()));
       // Loop until the whole object is initialized.
       // T2: new object.
       // T3: next object start.
       // T4: next word to be initialized.
       // T1: new object type arguments (if is_cls_parameterized).
       Label loop, loop_exit;
       __ BranchUnsignedGreaterEqual(T4, T3, &loop_exit);
       __ Bind(&loop);
       __ addiu(T4, T4, Immediate(kWordSize));
       __ bne(T4, T3, &loop);
@@ skipping 1068 matching lines @@
   __ lw(left, Address(SP, 1 * kWordSize));
   __ lw(temp2, Address(SP, 2 * kWordSize));
   __ lw(temp1, Address(SP, 3 * kWordSize));
   __ Ret();
   __ delay_slot()->addiu(SP, SP, Immediate(4 * kWordSize));
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_MIPS