Provide baseline for new GC infrastructure.

src/ia32/stub-cache-ia32.cc

 // Copyright 2006-2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 1485 matching lines @@
       // Save new length.
       __ mov(FieldOperand(edx, JSArray::kLengthOffset), eax);
 
       // Push the element.
       __ lea(edx, FieldOperand(ebx,
                                eax, times_half_pointer_size,
                                FixedArray::kHeaderSize - argc * kPointerSize));
       __ mov(ecx, Operand(esp, argc * kPointerSize));
       __ mov(Operand(edx, 0), ecx);
 
-      // Check if value is a smi.
-      __ test(ecx, Immediate(kSmiTagMask));
-      __ j(not_zero, &with_write_barrier);
+      if (!FLAG_new_gc) {
+        // Check if value is a smi.
+        __ test(ecx, Immediate(kSmiTagMask));
+        __ j(not_zero, &with_write_barrier);
+      }
 
       __ bind(&exit);
       __ ret((argc + 1) * kPointerSize);
 
-      __ bind(&with_write_barrier);
+      if (!FLAG_new_gc) {
+        __ bind(&with_write_barrier);
 
-      __ InNewSpace(ebx, ecx, equal, &exit);
+        __ InNewSpace(ebx, ecx, equal, &exit);
 
-      __ RecordWriteHelper(ebx, edx, ecx);
-      __ ret((argc + 1) * kPointerSize);
+        __ RecordWriteHelper(ebx, edx, ecx);
+        __ ret((argc + 1) * kPointerSize);
+      }
 
       __ bind(&attempt_to_grow_elements);
       if (!FLAG_inline_new) {
         __ jmp(&call_builtin);
       }
 
       ExternalReference new_space_allocation_top =
           ExternalReference::new_space_allocation_top_address();
       ExternalReference new_space_allocation_limit =
           ExternalReference::new_space_allocation_limit_address();
@@ skipping 1753 matching lines @@
   // Return the generated code.
   return GetCode();
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32