Call a stub for the write barrier on ARM. This is a step

src/arm/stub-cache-arm.cc

 // Copyright 2011 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 415 matching lines @@
   index -= object->map()->inobject_properties();
 
   if (index < 0) {
     // Set the property straight into the object.
     int offset = object->map()->instance_size() + (index * kPointerSize);
     __ str(r0, FieldMemOperand(receiver_reg, offset));
 
     // Update the write barrier for the array address.
     // Pass the now unused name_reg as a scratch register.
     __ mov(name_reg, r0);
-    __ RecordWriteField(
-        receiver_reg, offset, name_reg, scratch, kDontSaveFPRegs);
+    __ RecordWriteField(receiver_reg,
+                        offset,
+                        name_reg,
+                        scratch,
+                        kLRHasNotBeenSaved,
+                        kDontSaveFPRegs);
   } else {
     // Write to the properties array.
     int offset = index * kPointerSize + FixedArray::kHeaderSize;
     // Get the properties array
     __ ldr(scratch, FieldMemOperand(receiver_reg, JSObject::kPropertiesOffset));
     __ str(r0, FieldMemOperand(scratch, offset));
 
     // Update the write barrier for the array address.
     // Ok to clobber receiver_reg and name_reg, since we return.
     __ mov(name_reg, r0);
-    __ RecordWriteField(
-        scratch, offset, name_reg, receiver_reg, kDontSaveFPRegs);
+    __ RecordWriteField(scratch,
+                        offset,
+                        name_reg,
+                        receiver_reg,
+                        kLRHasNotBeenSaved,
+                        kDontSaveFPRegs);
   }
 
   // Return the value (register r0).
   __ bind(&exit);
   __ Ret();
 }
 
 
 void StubCompiler::GenerateLoadMiss(MacroAssembler* masm, Code::Kind kind) {
   ASSERT(kind == Code::LOAD_IC || kind == Code::KEYED_LOAD_IC);
@@ skipping 1127 matching lines @@
       Label with_write_barrier;
       __ JumpIfNotSmi(r4, &with_write_barrier);
       __ bind(&exit);
       __ Drop(argc + 1);
       __ Ret();
 
       __ bind(&with_write_barrier);
       __ RecordWrite(elements,
                      end_elements,
                      r4,
+                     kLRHasNotBeenSaved,
                      kDontSaveFPRegs,
                      EMIT_REMEMBERED_SET,
                      OMIT_SMI_CHECK);
       __ Drop(argc + 1);
       __ Ret();
 
       __ bind(&attempt_to_grow_elements);
       // r0: array's length + 1.
       // r4: elements' length.
 
@@ skipping 2614 matching lines @@
          elements_reg, Operand(FixedArray::kHeaderSize - kHeapObjectTag));
   ASSERT(kSmiTag == 0 && kSmiTagSize < kPointerSizeLog2);
   __ add(scratch,
          scratch,
          Operand(key_reg, LSL, kPointerSizeLog2 - kSmiTagSize));
   __ str(value_reg, MemOperand(scratch));
   __ mov(receiver_reg, value_reg);
   __ RecordWrite(elements_reg,  // Object.
                  scratch,       // Address.
                  receiver_reg,  // Value.
+                 kLRHasNotBeenSaved,
                  kDontSaveFPRegs);
 
   // value_reg (r0) is preserved.
   // Done.
   __ Ret();
 
   __ bind(&miss_force_generic);
   Handle<Code> ic =
       masm->isolate()->builtins()->KeyedStoreIC_MissForceGeneric();
   __ Jump(ic, RelocInfo::CODE_TARGET);
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM