81 lines
2.8 KiB
C++
81 lines
2.8 KiB
C++
/* Copyright 2021 The TensorFlow Authors. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==============================================================================*/
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#include "tensorflow/lite/tools/versioning/op_signature.h"
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#include <cstdint>
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#include <cstring>
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#include <vector>
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#include "tensorflow/compiler/mlir/lite/tools/versioning/op_signature.h"
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#include "tensorflow/lite/core/c/common.h"
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#include "tensorflow/lite/kernels/kernel_util.h"
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#include "tensorflow/lite/schema/schema_generated.h"
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namespace tflite {
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namespace {
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std::vector<OpSignatureTensorSpec> GetOpSignatureTensorSpecs(
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TfLiteIntArray* tensors, const TfLiteContext* context,
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const TfLiteNode* tflite_node) {
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std::vector<OpSignatureTensorSpec> tensor_specs;
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for (int32_t i = 0; i < tensors->size; ++i) {
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int32_t tensor_no = tensors->data[i];
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OpSignatureTensorSpec tensor_spec = {kTfLiteNoType};
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if (tensor_no >= 0) {
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const TfLiteTensor* tfl_tensor;
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if (context->tensors != nullptr) {
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tfl_tensor = &context->tensors[tensor_no];
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} else {
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tfl_tensor = context->GetTensor(context, tensor_no);
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}
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if (tfl_tensor != nullptr) {
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tensor_spec.type = tfl_tensor->type;
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tensor_spec.is_const = (tfl_tensor->allocation_type == kTfLiteMmapRo);
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if (tfl_tensor->dims) {
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for (int32_t j = 0; j < tfl_tensor->dims->size; ++j) {
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tensor_spec.dims.push_back(tfl_tensor->dims->data[j]);
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}
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}
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tensor_spec.is_shape_dynamic = HasUnspecifiedDimension(tfl_tensor);
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}
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}
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tensor_specs.push_back(tensor_spec);
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}
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return tensor_specs;
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}
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} // namespace
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OpSignature GetOpSignature(const TfLiteContext* context, const TfLiteNode* node,
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const TfLiteRegistration* registration) {
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OpSignature op_sig = {
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static_cast<BuiltinOperator>(registration->builtin_code)};
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op_sig.builtin_data = node->builtin_data;
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if (op_sig.op == BuiltinOperator_CUSTOM) {
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op_sig.custom_name = registration->custom_name;
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op_sig.custom_initial_data = node->custom_initial_data;
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}
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std::memset(&op_sig.ext_options, 0, sizeof(op_sig.ext_options));
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op_sig.inputs = GetOpSignatureTensorSpecs(node->inputs, context, node);
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op_sig.outputs = GetOpSignatureTensorSpecs(node->outputs, context, node);
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op_sig.version = registration->version;
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return op_sig;
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}
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} // namespace tflite
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