Only fill in holes if storing the number to the double array has succeeded.

src/ia32/stub-cache-ia32.cc

 // Copyright 2012 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 4341 matching lines @@
     // eax: value
     // ecx: key
     // edx: receiver
     // edi: elements
     // Initialize the new FixedDoubleArray.
     __ mov(FieldOperand(edi, JSObject::kMapOffset),
            Immediate(masm->isolate()->factory()->fixed_double_array_map()));
     __ mov(FieldOperand(edi, FixedDoubleArray::kLengthOffset),
            Immediate(Smi::FromInt(JSArray::kPreallocatedArrayElements)));
 
+    __ StoreNumberToDoubleElements(eax, edi, ecx, ebx, xmm0,
+                                   &transition_elements_kind, true);
+
     for (int i = 1; i < JSArray::kPreallocatedArrayElements; i++) {
       int offset = FixedDoubleArray::OffsetOfElementAt(i);
       __ mov(FieldOperand(edi, offset), Immediate(kHoleNanLower32));
       __ mov(FieldOperand(edi, offset + kPointerSize),
              Immediate(kHoleNanUpper32));
     }
 
-    __ StoreNumberToDoubleElements(eax, edi, ecx, ebx, xmm0,
-                                   &transition_elements_kind, true);
-
     // Install the new backing store in the JSArray.
     __ mov(FieldOperand(edx, JSObject::kElementsOffset), edi);
     __ RecordWriteField(edx, JSObject::kElementsOffset, edi, ebx,
                         kDontSaveFPRegs, EMIT_REMEMBERED_SET, OMIT_SMI_CHECK);
 
     // Increment the length of the array.
     __ add(FieldOperand(edx, JSArray::kLengthOffset),
            Immediate(Smi::FromInt(1)));
     __ mov(edi, FieldOperand(edx, JSObject::kElementsOffset));
     __ ret(0);
@@ skipping 21 matching lines @@
     __ jmp(ic_slow, RelocInfo::CODE_TARGET);
   }
 }
 
 
 #undef __
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_IA32