ic_copy = (status.is_entries + (C.iseq_inline_storage_entry.new(operands[1]) - body.is_entries)).iv_cache

dest_shape_id = ic_copy.value >> C.SHAPE_FLAG_SHIFT

attr_index = ic_copy.value & ((1 << C.SHAPE_FLAG_SHIFT) - 1)

source_shape_id = if dest_shape_id == C.INVALID_SHAPE_ID

dest_shape_id

else

end

src = +''

src << " const shape_id_t dest_shape_id = (shape_id_t)#{dest_shape_id};\n"

src << " if (source_shape_id == ROBJECT_SHAPE_ID(obj) && \n"

src << " dest_shape_id != ROBJECT_SHAPE_ID(obj)) {\n"

src << " ROBJECT_SET_SHAPE_ID(obj, dest_shape_id);\n"

src << " VALUE *ptr = ROBJECT_IVPTR(obj);\n"

src << " RB_OBJ_WRITE(obj, &ptr[index], stack[#{stack_size - 1}]);\n"