121 lines
5.7 KiB
C++
121 lines
5.7 KiB
C++
/* Copyright 2019 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/micro/micro_utils.h"
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#include "tensorflow/lite/micro/testing/micro_test.h"
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TF_LITE_MICRO_TESTS_BEGIN
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TF_LITE_MICRO_TEST(FloatToAsymmetricQuantizedUInt8Test) {
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using tflite::FloatToQuantizedType;
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// [0, 127.5] -> zero_point=0, scale=0.5
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TF_LITE_MICRO_EXPECT_EQ(0, FloatToQuantizedType<uint8_t>(0, 0.5, 0));
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TF_LITE_MICRO_EXPECT_EQ(254, FloatToQuantizedType<uint8_t>(127, 0.5, 0));
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TF_LITE_MICRO_EXPECT_EQ(255, FloatToQuantizedType<uint8_t>(127.5, 0.5, 0));
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// [-10, 245] -> zero_point=10, scale=1.0
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TF_LITE_MICRO_EXPECT_EQ(0, FloatToQuantizedType<uint8_t>(-10, 1.0, 10));
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TF_LITE_MICRO_EXPECT_EQ(1, FloatToQuantizedType<uint8_t>(-9, 1.0, 10));
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TF_LITE_MICRO_EXPECT_EQ(128, FloatToQuantizedType<uint8_t>(118, 1.0, 10));
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TF_LITE_MICRO_EXPECT_EQ(253, FloatToQuantizedType<uint8_t>(243, 1.0, 10));
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TF_LITE_MICRO_EXPECT_EQ(254, FloatToQuantizedType<uint8_t>(244, 1.0, 10));
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TF_LITE_MICRO_EXPECT_EQ(255, FloatToQuantizedType<uint8_t>(245, 1.0, 10));
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}
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TF_LITE_MICRO_TEST(FloatToAsymmetricQuantizedInt8Test) {
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using tflite::FloatToQuantizedType;
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// [-64, 63.5] -> zero_point=0, scale=0.5
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TF_LITE_MICRO_EXPECT_EQ(2, FloatToQuantizedType<int8_t>(1, 0.5, 0));
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TF_LITE_MICRO_EXPECT_EQ(4, FloatToQuantizedType<int8_t>(2, 0.5, 0));
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TF_LITE_MICRO_EXPECT_EQ(6, FloatToQuantizedType<int8_t>(3, 0.5, 0));
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TF_LITE_MICRO_EXPECT_EQ(-10, FloatToQuantizedType<int8_t>(-5, 0.5, 0));
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TF_LITE_MICRO_EXPECT_EQ(-128, FloatToQuantizedType<int8_t>(-64, 0.5, 0));
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TF_LITE_MICRO_EXPECT_EQ(127, FloatToQuantizedType<int8_t>(63.5, 0.5, 0));
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// [-127, 128] -> zero_point=-1, scale=1.0
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TF_LITE_MICRO_EXPECT_EQ(0, FloatToQuantizedType<int8_t>(1, 1.0, -1));
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TF_LITE_MICRO_EXPECT_EQ(-1, FloatToQuantizedType<int8_t>(0, 1.0, -1));
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TF_LITE_MICRO_EXPECT_EQ(126, FloatToQuantizedType<int8_t>(127, 1.0, -1));
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TF_LITE_MICRO_EXPECT_EQ(127, FloatToQuantizedType<int8_t>(128, 1.0, -1));
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TF_LITE_MICRO_EXPECT_EQ(-127, FloatToQuantizedType<int8_t>(-126, 1.0, -1));
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TF_LITE_MICRO_EXPECT_EQ(-128, FloatToQuantizedType<int8_t>(-127, 1.0, -1));
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}
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TF_LITE_MICRO_TEST(FloatToSymmetricQuantizedInt8Test) {
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using tflite::FloatToSymmetricQuantizedType;
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// [-64, 63.5] -> zero_point=0, scale=0.5
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TF_LITE_MICRO_EXPECT_EQ(2, FloatToSymmetricQuantizedType<int8_t>(1, 0.5));
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TF_LITE_MICRO_EXPECT_EQ(4, FloatToSymmetricQuantizedType<int8_t>(2, 0.5));
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TF_LITE_MICRO_EXPECT_EQ(6, FloatToSymmetricQuantizedType<int8_t>(3, 0.5));
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TF_LITE_MICRO_EXPECT_EQ(-10, FloatToSymmetricQuantizedType<int8_t>(-5, 0.5));
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TF_LITE_MICRO_EXPECT_EQ(-127,
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FloatToSymmetricQuantizedType<int8_t>(-64, 0.5));
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TF_LITE_MICRO_EXPECT_EQ(127,
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FloatToSymmetricQuantizedType<int8_t>(63.5, 0.5));
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// [-127, 128] -> zero_point=-1, scale=1.0
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TF_LITE_MICRO_EXPECT_EQ(1, FloatToSymmetricQuantizedType<int8_t>(1, 1.0));
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TF_LITE_MICRO_EXPECT_EQ(0, FloatToSymmetricQuantizedType<int8_t>(0, 1.0));
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TF_LITE_MICRO_EXPECT_EQ(127, FloatToSymmetricQuantizedType<int8_t>(127, 1.0));
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TF_LITE_MICRO_EXPECT_EQ(127, FloatToSymmetricQuantizedType<int8_t>(128, 1.0));
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TF_LITE_MICRO_EXPECT_EQ(-126,
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FloatToSymmetricQuantizedType<int8_t>(-126, 1.0));
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TF_LITE_MICRO_EXPECT_EQ(-127,
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FloatToSymmetricQuantizedType<int8_t>(-127, 1.0));
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}
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TF_LITE_MICRO_TEST(FloatToAsymmetricQuantizedInt32Test) {
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using tflite::FloatToSymmetricQuantizedType;
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TF_LITE_MICRO_EXPECT_EQ(0, FloatToSymmetricQuantizedType<int32_t>(0, 0.5));
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TF_LITE_MICRO_EXPECT_EQ(2, FloatToSymmetricQuantizedType<int32_t>(1, 0.5));
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TF_LITE_MICRO_EXPECT_EQ(-2, FloatToSymmetricQuantizedType<int32_t>(-1, 0.5));
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TF_LITE_MICRO_EXPECT_EQ(-100,
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FloatToSymmetricQuantizedType<int32_t>(-50, 0.5));
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TF_LITE_MICRO_EXPECT_EQ(100, FloatToSymmetricQuantizedType<int32_t>(50, 0.5));
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}
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TF_LITE_MICRO_TEST(AsymmetricQuantizeInt8) {
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float values[] = {-10.3, -3.1, -2.1, -1.9, -0.9, 0.1, 0.9, 1.85, 2.9, 4.1};
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int8_t goldens[] = {-20, -5, -3, -3, -1, 1, 3, 5, 7, 9};
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constexpr int length = sizeof(values) / sizeof(float);
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int8_t quantized[length];
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tflite::Quantize(values, quantized, length, 0.5, 1);
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for (int i = 0; i < length; i++) {
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TF_LITE_MICRO_EXPECT_EQ(quantized[i], goldens[i]);
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}
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}
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TF_LITE_MICRO_TEST(AsymmetricQuantizeUInt8) {
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float values[] = {-10.3, -3.1, -2.1, -1.9, -0.9, 0.1, 0.9, 1.85, 2.9, 4.1};
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uint8_t goldens[] = {106, 121, 123, 123, 125, 127, 129, 131, 133, 135};
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constexpr int length = sizeof(values) / sizeof(float);
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uint8_t quantized[length];
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tflite::Quantize(values, quantized, length, 0.5, 127);
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for (int i = 0; i < length; i++) {
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TF_LITE_MICRO_EXPECT_EQ(quantized[i], goldens[i]);
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}
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}
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TF_LITE_MICRO_TEST(SymmetricQuantizeInt32) {
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float values[] = {-10.3, -3.1, -2.1, -1.9, -0.9, 0.1, 0.9, 1.85, 2.9, 4.1};
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int32_t goldens[] = {-21, -6, -4, -4, -2, 0, 2, 4, 6, 8};
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constexpr int length = sizeof(values) / sizeof(float);
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int32_t quantized[length];
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tflite::SymmetricQuantize(values, quantized, length, 0.5);
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for (int i = 0; i < length; i++) {
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TF_LITE_MICRO_EXPECT_EQ(quantized[i], goldens[i]);
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}
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}
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TF_LITE_MICRO_TESTS_END
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