chromium/third_party/tflite/src/tensorflow/lite/kernels/rng_bit_generator.cc

/* Copyright 2023 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 <array>
#include <cstddef>
#include <cstdint>

#include "tensorflow/lite/core/c/builtin_op_data.h"
#include "tensorflow/lite/core/c/common.h"
#include "tensorflow/lite/kernels/internal/tensor_ctypes.h"
#include "tensorflow/lite/kernels/kernel_util.h"
#include "tensorflow/lite/kernels/rng_util.h"

namespace tflite {
namespace ops {
namespace builtin {
namespace stablehlo_rng_bit_generator {

namespace {

// Inputs and outputs tensor index.
constexpr int kInitialState = …;
constexpr int kOutputKey = …;
constexpr int kOutput = …;

template <typename T, size_t K>
void FillOutputBuffer(uint32_t* output_buffer, uint32_t* output_state_buffer,
                      int64_t output_num_elements, T fn,
                      std::array<uint32_t, K>& ctr, uint32_t key_0,
                      uint32_t key_1) { … }

}  // namespace

TfLiteStatus Prepare(TfLiteContext* context, TfLiteNode* node) { … }

TfLiteStatus Eval(TfLiteContext* context, TfLiteNode* node) { … }

}  // namespace stablehlo_rng_bit_generator

TfLiteRegistration* Register_STABLEHLO_RNG_BIT_GENERATOR() { … }

}  // namespace builtin
}  // namespace ops
}  // namespace tflite