Function test_backend

smallthinker/tests/test-backend-ops.cpp:4612–4676

}

static bool test_backend(ggml_backend_t backend, test_mode mode, const char * op_name, const char * params_filter) {
    auto filter_test_cases = [](std::vector<std::unique_ptr<test_case>> & test_cases, const char * params_filter) {
        if (params_filter == nullptr) {
            return;
        }

        std::regex params_filter_regex(params_filter);

        for (auto it = test_cases.begin(); it != test_cases.end();) {
            if (!std::regex_search((*it)->vars(), params_filter_regex)) {
                it = test_cases.erase(it);
                continue;
            }

            it++;
        }
    };

    if (mode == MODE_TEST) {
        auto test_cases = make_test_cases_eval();
        filter_test_cases(test_cases, params_filter);
        ggml_backend_t backend_cpu = ggml_backend_init_by_type(GGML_BACKEND_DEVICE_TYPE_CPU, NULL);
        if (backend_cpu == NULL) {
            printf("  Failed to initialize CPU backend\n");
            return false;
        }

        size_t n_ok = 0;
        for (auto & test : test_cases) {
            if (test->eval(backend, backend_cpu, op_name)) {
                n_ok++;
            }
        }
        printf("  %zu/%zu tests passed\n", n_ok, test_cases.size());

        ggml_backend_free(backend_cpu);

        return n_ok == test_cases.size();
    }

    if (mode == MODE_GRAD) {
        auto test_cases = make_test_cases_eval();
        filter_test_cases(test_cases, params_filter);
        size_t n_ok = 0;
        for (auto & test : test_cases) {
            if (test->eval_grad(backend, op_name)) {
                n_ok++;
            }
        }
        printf("  %zu/%zu tests passed\n", n_ok, test_cases.size());

        return n_ok == test_cases.size();
    }

    if (mode == MODE_PERF) {
        auto test_cases = make_test_cases_perf();
        filter_test_cases(test_cases, params_filter);
        for (auto & test : test_cases) {