124 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			124 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			C++
		
	
	
	
// Copyright 2019 Google LLC
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//
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree.
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#pragma once
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#include <gtest/gtest.h>
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#include <algorithm>
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#include <cassert>
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#include <cstddef>
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#include <cstdlib>
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#include <functional>
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#include <random>
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#include <vector>
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#include <xnnpack.h>
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#include <xnnpack/AlignedAllocator.h>
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#include <xnnpack/params.h>
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class PackMicrokernelTester {
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 public:
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  inline PackMicrokernelTester& mr(size_t mr) {
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    assert(mr != 0);
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    this->mr_ = mr;
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    return *this;
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  }
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  inline size_t mr() const {
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    return this->mr_;
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  }
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  inline PackMicrokernelTester& m(size_t m) {
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    assert(m != 0);
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    this->m_ = m;
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    return *this;
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  }
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  inline size_t m() const {
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    return this->m_;
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  }
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  inline PackMicrokernelTester& k(size_t k) {
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    assert(k != 0);
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    this->k_ = k;
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    return *this;
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  }
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  inline size_t k() const {
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    return this->k_;
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  }
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  inline PackMicrokernelTester& x_stride(size_t x_stride) {
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    assert(x_stride != 0);
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    this->x_stride_ = x_stride;
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    return *this;
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  }
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  inline size_t x_stride() const {
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    if (this->x_stride_ == 0) {
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      return k();
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    } else {
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      assert(this->x_stride_ >= k());
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      return this->x_stride_;
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    }
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  }
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  inline PackMicrokernelTester& iterations(size_t iterations) {
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    this->iterations_ = iterations;
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    return *this;
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  }
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  inline size_t iterations() const {
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    return this->iterations_;
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  }
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  void Test(xnn_x32_packx_ukernel_function packx) const {
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    std::random_device random_device;
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    auto rng = std::mt19937(random_device());
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    auto u32rng = std::bind(std::uniform_int_distribution<uint32_t>(), rng);
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    const uint32_t c = u32rng();
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    std::vector<uint32_t> x(k() + (m() - 1) * x_stride() + XNN_EXTRA_BYTES / sizeof(uint32_t));
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    std::vector<uint32_t, AlignedAllocator<uint32_t, 64>> y(mr() * k());
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    std::vector<uint32_t> y_ref(mr() * k());
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    for (size_t iteration = 0; iteration < iterations(); iteration++) {
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      std::generate(x.begin(), x.end(), std::ref(u32rng));
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      std::generate(y.begin(), y.end(), std::ref(u32rng));
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      // Compute reference results.
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      std::fill(y_ref.begin(), y_ref.end(), c);
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      for (size_t i = 0; i < mr(); i++) {
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        for (size_t j = 0; j < k(); j++) {
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          y_ref[j * mr() + i] = x[std::min(i, m() - 1) * x_stride() + j];
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        }
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      }
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      // Call optimized micro-kernel.
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      packx(
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        m(), k(),
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        x.data(), x_stride() * sizeof(uint32_t),
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        y.data());
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      // Verify results.
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      for (size_t i = 0; i < mr(); i++) {
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        for (size_t j = 0; j < k(); j++) {
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          ASSERT_EQ(y_ref[j * mr() + i], y[j * mr() + i])
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            << "at pixel = " << i << ", channel = " << j << ", "
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            << "m = " << m() << ", k = " << k();
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        }
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      }
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    }
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  }
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 private:
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  size_t mr_{1};
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  size_t m_{1};
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  size_t k_{1};
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  size_t x_stride_{0};
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  size_t iterations_{1};
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};
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