222         Mat bottom_blob_flattened = bottom_blob;  in forward()  local
228             flatten->forward(bottom_blob, bottom_blob_flattened, opt_flatten);  in forward()
233             bottom_blob_flattened.w *= bottom_blob_flattened.elempack;  in forward()
234             bottom_blob_flattened.cstep = bottom_blob_flattened.w;  in forward()
235             bottom_blob_flattened.elemsize = 4u;  in forward()
236             bottom_blob_flattened.elempack = 1;  in forward()
239         return forward(bottom_blob_flattened, top_blob, opt);  in forward()
536     Mat bottom_blob_flattened = bottom_blob;  in forward_fp16s()  local
542         flatten->forward(bottom_blob, bottom_blob_flattened, opt_flatten);  in forward_fp16s()
545     size_t elemsize = bottom_blob_flattened.elemsize;  in forward_fp16s()
546     int elempack = bottom_blob_flattened.elempack;  in forward_fp16s()
571             const __fp16* sptr = bottom_blob_flattened;  in forward_fp16s()
605             const __fp16* sptr = bottom_blob_flattened;  in forward_fp16s()
798     Mat bottom_blob_flattened = bottom_blob;  in forward_fp16sa()  local
804         flatten->forward(bottom_blob, bottom_blob_flattened, opt_flatten);  in forward_fp16sa()
807     size_t elemsize = bottom_blob_flattened.elemsize;  in forward_fp16sa()
808     int elempack = bottom_blob_flattened.elempack;  in forward_fp16sa()
833             const __fp16* sptr = bottom_blob_flattened;  in forward_fp16sa()
867             const __fp16* sptr = bottom_blob_flattened;  in forward_fp16sa()