kc3-lang/angle/src/common/hash_utils_unittest.cpp

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• Hash : 35fd3063
  Author :
  Date : 2018-11-20T10:02:48
  

  Use xxHash for faster hash map lookups.
  
  This most strongly affects the Vulkan back-end which uses a hash map
  to cache VkPipelines. It also should speed up some parts of the D3D11
  back-end.
  
  Bug: angleproject:2522
  Change-Id: I10801654f043abce17339c30d7bf62bc8644e49c
  Reviewed-on: https://chromium-review.googlesource.com/c/1316889
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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• src/common/hash_utils_unittest.cpp

• //
  // Copyright 2018 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  // hash_utils_unittest: Hashing helper functions tests.
  
  #include <gtest/gtest.h>
  
  #include "common/hash_utils.h"
  
  using namespace angle;
  
  namespace
  {
  // Basic functionality test.
  TEST(HashUtilsTest, ComputeGenericHash)
  {
      std::string a = "aSimpleString!!!";
      std::string b = "anotherString???";
  
      // Requires a string size aligned to 4 bytes.
      ASSERT_TRUE(a.size() % 4 == 0);
      ASSERT_TRUE(b.size() % 4 == 0);
  
      size_t aHash = ComputeGenericHash(a.c_str(), a.size());
      size_t bHash = ComputeGenericHash(b.c_str(), b.size());
  
      EXPECT_NE(aHash, bHash);
  }
  }  // anonymous namespace
  

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