Function graph_copy_dup_tensor

external/ggml/src/ggml-backend.cpp:2007–2039

}

static struct ggml_tensor * graph_copy_dup_tensor(struct ggml_hash_set hash_set, struct ggml_tensor ** node_copies,
    struct ggml_context * ctx_allocated, struct ggml_context * ctx_unallocated, struct ggml_tensor * src) {

    GGML_ASSERT(src != NULL);
    GGML_ASSERT(src->data && "graph must be allocated");

    size_t id = ggml_hash_insert(&hash_set, src);
    if (id == GGML_HASHSET_ALREADY_EXISTS) {
        return node_copies[ggml_hash_find(&hash_set, src)];
    }

    struct ggml_tensor * dst = ggml_dup_tensor_layout(src->data && !src->view_src ? ctx_allocated : ctx_unallocated, src);
    if (src->view_src != NULL) {
        dst->view_src = graph_copy_dup_tensor(hash_set, node_copies, ctx_allocated, ctx_unallocated, src->view_src);
        dst->view_offs = src->view_offs;
    }
    dst->op = src->op;
    dst->flags = src->flags;
    memcpy(dst->op_params, src->op_params, sizeof(dst->op_params));
    ggml_set_name(dst, src->name);

    // copy src
    for (int i = 0; i < GGML_MAX_SRC; i++) {
        struct ggml_tensor * s = src->src[i];
        if (s == NULL) {
            continue;
        }
        dst->src[i] = graph_copy_dup_tensor(hash_set, node_copies, ctx_allocated, ctx_unallocated, s);
    }

    node_copies[id] = dst;
    return dst;
}

static void graph_copy_init_tensor(struct ggml_hash_set * hash_set, struct ggml_tensor ** node_copies, bool * node_init, struct ggml_tensor * src) {
    size_t id = ggml_hash_find(hash_set, src);