Function map_tensor

subprojects/llama.cpp/ggml/src/ggml-opt.cpp:262–291

}

static ggml_tensor * map_tensor(std::map<ggml_tensor *, ggml_tensor *> & tensor_map, ggml_context * ctx, ggml_tensor * tensor) {
    if (!tensor) {
        return nullptr;
    }

    if (tensor_map.find(tensor) != tensor_map.end()) {
        return tensor_map[tensor];
    }

    ggml_tensor * new_tensor = ggml_dup_tensor(ctx, tensor);
    tensor_map[tensor] = new_tensor;

    new_tensor->op = tensor->op;
    for (int i = 0; i < GGML_MAX_DIMS; i++) {
        new_tensor->nb[i] = tensor->nb[i];
    }
    new_tensor->flags = tensor->flags;
    memcpy(new_tensor->op_params, tensor->op_params, sizeof(tensor->op_params));
    strcpy(new_tensor->name, tensor->name);
    new_tensor->data = tensor->data;
    new_tensor->buffer = tensor->buffer;
    new_tensor->extra = tensor->extra;
    new_tensor->view_offs = tensor->view_offs;
    new_tensor->view_src = map_tensor(tensor_map, ctx, tensor->view_src);
    for (int i = 0; i < GGML_MAX_SRC; i++) {
        new_tensor->src[i] = map_tensor(tensor_map, ctx, tensor->src[i]);
    }

    return new_tensor;
}

static ggml_cgraph * dup_graph(ggml_context * ctx, ggml_cgraph * src) {
    std::map<ggml_tensor *, ggml_tensor *> tensor_map;