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

src/arm/stub-cache-arm.cc

Index: src/arm/stub-cache-arm.cc
diff --git a/src/arm/stub-cache-arm.cc b/src/arm/stub-cache-arm.cc
index 9cb950392fdda0a8e363d8293708b43479f25b4b..4604c33312f7034fb8fc48ded5ca0cbf520fec6a 100644
--- a/src/arm/stub-cache-arm.cc
+++ b/src/arm/stub-cache-arm.cc
@@ -4795,14 +4795,6 @@ void KeyedStoreStubCompiler::GenerateStoreFastDoubleElement(
     __ str(scratch1,
            FieldMemOperand(elements_reg, FixedDoubleArray::kLengthOffset));
 
-    __ mov(scratch1, Operand(kHoleNanLower32));
-    __ mov(scratch2, Operand(kHoleNanUpper32));
-    for (int i = 1; i < JSArray::kPreallocatedArrayElements; i++) {
-      int offset = FixedDoubleArray::OffsetOfElementAt(i);
-      __ str(scratch1, FieldMemOperand(elements_reg, offset));
-      __ str(scratch2, FieldMemOperand(elements_reg, offset + kPointerSize));
-    }
-
     __ mov(scratch1, elements_reg);
     __ StoreNumberToDoubleElements(value_reg,
                                    key_reg,
@@ -4814,6 +4806,14 @@ void KeyedStoreStubCompiler::GenerateStoreFastDoubleElement(
                                    scratch5,
                                    &transition_elements_kind);
 
+    __ mov(scratch1, Operand(kHoleNanLower32));
+    __ mov(scratch2, Operand(kHoleNanUpper32));
+    for (int i = 1; i < JSArray::kPreallocatedArrayElements; i++) {
+      int offset = FixedDoubleArray::OffsetOfElementAt(i);
+      __ str(scratch1, FieldMemOperand(elements_reg, offset));
+      __ str(scratch2, FieldMemOperand(elements_reg, offset + kPointerSize));
+    }
+
     // Install the new backing store in the JSArray.
     __ str(elements_reg,
            FieldMemOperand(receiver_reg, JSObject::kElementsOffset));