1 // Copyright 2020 Google LLC
2 //
3 // This source code is licensed under the BSD-style license found in the
4 // LICENSE file in the root directory of this source tree.
5 
6 #include <math.h>
7 #include <stddef.h>
8 #include <stdint.h>
9 
10 #include <xnnpack.h>
11 #include <xnnpack/log.h>
12 #include <xnnpack/params.h>
13 #include <xnnpack/subgraph.h>
14 
15 
xnn_define_abs(xnn_subgraph_t subgraph,uint32_t input_id,uint32_t output_id,uint32_t flags)16 enum xnn_status xnn_define_abs(
17   xnn_subgraph_t subgraph,
18   uint32_t input_id,
19   uint32_t output_id,
20   uint32_t flags)
21 {
22   if ((xnn_params.init_flags & XNN_INIT_FLAG_XNNPACK) == 0) {
23     xnn_log_error("failed to define %s operator: XNNPACK is not initialized",
24       xnn_node_type_to_string(xnn_node_type_abs));
25     return xnn_status_uninitialized;
26   }
27 
28   if (input_id >= subgraph->num_values) {
29     xnn_log_error(
30       "failed to define %s operator with input ID #%" PRIu32 ": invalid Value ID",
31       xnn_node_type_to_string(xnn_node_type_abs), input_id);
32     return xnn_status_invalid_parameter;
33   }
34 
35   if (output_id >= subgraph->num_values) {
36     xnn_log_error(
37       "failed to define %s operator with output ID #%" PRIu32 ": invalid Value ID",
38       xnn_node_type_to_string(xnn_node_type_abs), output_id);
39     return xnn_status_invalid_parameter;
40   }
41 
42   struct xnn_node* node = xnn_subgraph_new_node(subgraph);
43   if (node == NULL) {
44     return xnn_status_out_of_memory;
45   }
46 
47   node->type = xnn_node_type_abs;
48   node->num_inputs = 1;
49   node->inputs[0] = input_id;
50   node->num_outputs = 1;
51   node->outputs[0] = output_id;
52   node->flags = flags;
53 
54   return xnn_status_success;
55 }
56