STT-tensorflow/tensorflow/lite/micro/kernels/xtensa_hifi/logistic.cc
Robert David a0422e404e Remove empty Init, Free, and Prepare functions.
The interpreter doesn't call it if a nullptr is presented in the registration. This can slightly reduce code size.

PiperOrigin-RevId: 304284594
Change-Id: I7fa092aa9cf5142ee30982d07655971fd1626630
2020-04-01 16:26:04 -07:00

127 lines
5.0 KiB
C++

/******************************************************************************
* Copyright (C) 2019 Cadence Design Systems, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to use this Software with Cadence processor cores only and
* not with any other processors and platforms, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
******************************************************************************/
/* Copyright 2019 The TensorFlow Authors. All Rights Reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
==============================================================================*/
#include "tensorflow/lite/kernels/internal/reference/logistic.h"
#include "tensorflow/lite/c/builtin_op_data.h"
#include "tensorflow/lite/c/common.h"
#include "tensorflow/lite/kernels/internal/common.h"
#include "tensorflow/lite/kernels/internal/quantization_util.h"
#include "tensorflow/lite/kernels/internal/tensor_ctypes.h"
#include "tensorflow/lite/kernels/kernel_util.h"
#include "tensorflow/lite/kernels/op_macros.h"
#include "xtensa_tf_micro_common.h"
namespace tflite {
namespace ops {
namespace micro {
namespace activations {
constexpr int kInputTensor = 0;
constexpr int kOutputTensor = 0;
TfLiteStatus Eval(TfLiteContext* context, TfLiteNode* node) {
const TfLiteTensor* input = GetInput(context, node, kInputTensor);
TfLiteTensor* output = GetOutput(context, node, kOutputTensor);
if (input->type == kTfLiteFloat32) {
switch (output->type) {
case kTfLiteFloat32: {
int err;
const float* inp_data_ptr;
float* out_data_ptr;
const RuntimeShape& input_shape = GetTensorShape(input);
const RuntimeShape& output_shape = GetTensorShape(output);
const int flat_size = MatchingFlatSize(input_shape, output_shape);
inp_data_ptr = GetTensorData<float>(input);
out_data_ptr = GetTensorData<float>(output);
err = xa_nn_vec_sigmoid_f32_f32(out_data_ptr, inp_data_ptr, flat_size);
CHECK_ERR_HIFI_NNLIB_KER(err, "xa_nn_vec_sigmoid_f32_f32 failed");
return kTfLiteOk;
}
default:
TF_LITE_KERNEL_LOG(context, "Input %s, output %s not supported.",
TfLiteTypeGetName(input->type),
TfLiteTypeGetName(output->type));
return kTfLiteError;
}
} else if (input->type == kTfLiteInt8) {
switch (output->type) {
case kTfLiteInt8: {
reference_ops::Logistic(
GetTensorShape(input), GetTensorData<int8_t>(input),
input->params.scale, input->params.zero_point,
GetTensorShape(output), GetTensorData<int8_t>(output),
output->params.scale, output->params.zero_point);
return kTfLiteOk;
}
default:
TF_LITE_KERNEL_LOG(context, "Input %s, output %s not supported.",
TfLiteTypeGetName(input->type),
TfLiteTypeGetName(output->type));
return kTfLiteError;
}
} else {
// (b/141211002): Also support other data types once we have supported
// temporary tensors in TFLM.
TF_LITE_KERNEL_LOG(context, "Input %s, output %s not supported.",
TfLiteTypeGetName(input->type),
TfLiteTypeGetName(output->type));
return kTfLiteError;
}
return kTfLiteOk;
}
} // namespace activations
TfLiteRegistration* Register_LOGISTIC() {
static TfLiteRegistration r = {/*init=*/nullptr,
/*free=*/nullptr,
/*prepare=*/nullptr,
/*invoke=*/activations::Eval,
/*profiling_string=*/nullptr,
/*builtin_code=*/0,
/*custom_name=*/nullptr,
/*version=*/0};
return &r;
}
} // namespace micro
} // namespace ops
} // namespace tflite