105 lines
3.6 KiB
C++
105 lines
3.6 KiB
C++
/* Copyright 2024 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 <cstdint>
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#include "tensorflow/lite/c/c_api_types.h"
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#include "tensorflow/lite/c/common.h"
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#include "tensorflow/lite/kernels/internal/tensor_ctypes.h"
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#include "tensorflow/lite/kernels/kernel_util.h"
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namespace tflite {
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namespace ops {
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namespace builtin {
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namespace stablehlo_shift_left {
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namespace {
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constexpr int kInputTensor1 = 0;
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constexpr int kInputTensor2 = 1;
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constexpr int kOutputTensor = 0;
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template <typename DataType>
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TfLiteStatus EvalImpl(const TfLiteTensor* operand1,
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const TfLiteTensor* operand2, TfLiteTensor* result) {
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const int num_elements = NumElements(result);
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const DataType* input1 = GetTensorData<DataType>(operand1);
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const DataType* input2 = GetTensorData<DataType>(operand2);
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DataType* output = GetTensorData<DataType>(result);
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for (int i = 0; i < num_elements; ++i) {
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output[i] = input1[i] << input2[i];
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}
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return kTfLiteOk;
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}
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TfLiteStatus Prepare(TfLiteContext* context, TfLiteNode* node) {
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TF_LITE_ENSURE_EQ(context, NumInputs(node), 2);
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TF_LITE_ENSURE_EQ(context, NumOutputs(node), 1);
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const TfLiteTensor* input1;
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TF_LITE_ENSURE_OK(context,
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GetInputSafe(context, node, kInputTensor1, &input1));
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const TfLiteTensor* input2;
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TF_LITE_ENSURE_OK(context,
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GetInputSafe(context, node, kInputTensor2, &input2));
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TfLiteTensor* output;
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TF_LITE_ENSURE_OK(context,
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GetOutputSafe(context, node, kOutputTensor, &output));
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TF_LITE_ENSURE_TYPES_EQ(context, input1->type, input2->type);
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output->type = input1->type;
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return context->ResizeTensor(context, output,
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TfLiteIntArrayCopy(input1->dims));
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}
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TfLiteStatus Eval(TfLiteContext* context, TfLiteNode* node) {
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const TfLiteTensor* input1;
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TF_LITE_ENSURE_OK(context,
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GetInputSafe(context, node, kInputTensor1, &input1));
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const TfLiteTensor* input2;
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TF_LITE_ENSURE_OK(context,
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GetInputSafe(context, node, kInputTensor2, &input2));
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TfLiteTensor* output;
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TF_LITE_ENSURE_OK(context,
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GetOutputSafe(context, node, kOutputTensor, &output));
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TfLiteType data_type = input1->type;
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if (data_type == kTfLiteInt8) {
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return EvalImpl<int8_t>(input1, input2, output);
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} else if (data_type == kTfLiteInt16) {
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return EvalImpl<int16_t>(input1, input2, output);
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} else if (data_type == kTfLiteInt32) {
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return EvalImpl<int32_t>(input1, input2, output);
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} else {
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TF_LITE_KERNEL_LOG(context, "(Index Type: %s) currently not supported.\n",
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TfLiteTypeGetName(data_type));
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return kTfLiteError;
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}
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}
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} // namespace
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} // namespace stablehlo_shift_left
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TfLiteRegistration* Register_STABLEHLO_SHIFT_LEFT() {
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static TfLiteRegistration r = {nullptr, nullptr,
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stablehlo_shift_left::Prepare,
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stablehlo_shift_left::Eval};
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return &r;
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}
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} // namespace builtin
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} // namespace ops
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} // namespace tflite
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