kc3-lang/angle/src/tests/compiler_tests/PruneEmptyCases_test.cpp

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• Hash : 9d737966
  Author :
  Date : 2019-08-14T12:25:12
  

  Standardize copyright notices to project style
  
  For all "ANGLE Project" copyrights, standardize to the format specified
  by the style guide. Changes:
  - "Copyright (c)" and "Copyright(c)" changed to just "Copyright".
  - Removed the second half of date ranges ("Y1Y1-Y2Y2"->"Y1Y1").
  - Fixed a small number of files that had no copyright date using the
    initial commit year from the version control history.
  - Fixed one instance of copyright being "The ANGLE Project" rather than
    "The ANGLE Project Authors"
  
  These changes are applied both to the copyright of source file, and
  where applicable to copyright statements that are generated by
  templates.
  
  BUG=angleproject:3811
  
  Change-Id: I973dd65e4ef9deeba232d5be74c768256a0eb2e5
  Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1754397
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

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• src/tests/compiler_tests/PruneEmptyCases_test.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.
  //
  // PruneEmptyCases_test.cpp:
  //   Tests for pruning empty cases and switch statements. This ensures that the translator doesn't
  //   produce switch statements where the last case statement is not followed by anything.
  //
  
  #include "GLSLANG/ShaderLang.h"
  #include "angle_gl.h"
  #include "gtest/gtest.h"
  #include "tests/test_utils/compiler_test.h"
  
  using namespace sh;
  
  namespace
  {
  
  class PruneEmptyCasesTest : public MatchOutputCodeTest
  {
    public:
      PruneEmptyCasesTest() : MatchOutputCodeTest(GL_FRAGMENT_SHADER, 0, SH_GLSL_COMPATIBILITY_OUTPUT)
      {}
  };
  
  // Test that a switch statement that only contains no-ops is pruned entirely.
  TEST_F(PruneEmptyCasesTest, SwitchStatementWithOnlyNoOps)
  {
      const std::string shaderString =
          R"(#version 300 es
  
          uniform int ui;
  
          void main(void)
          {
              int i = ui;
              switch (i)
              {
                  case 0:
                  case 1:
                      { {} }
                      int j;
                      1;
              }
          })";
      compile(shaderString);
      ASSERT_TRUE(notFoundInCode("switch"));
      ASSERT_TRUE(notFoundInCode("case"));
  }
  
  // Test that a init statement that has a side effect is preserved even if the switch is pruned.
  TEST_F(PruneEmptyCasesTest, SwitchStatementWithOnlyNoOpsAndInitWithSideEffect)
  {
      const std::string shaderString =
          R"(#version 300 es
  
          precision mediump float;
          out vec4 my_FragColor;
  
          uniform int uni_i;
  
          void main(void)
          {
              int i = uni_i;
              switch (++i)
              {
                  case 0:
                  case 1:
                      { {} }
                      int j;
                      1;
              }
              my_FragColor = vec4(i);
          })";
      compile(shaderString);
      ASSERT_TRUE(notFoundInCode("switch"));
      ASSERT_TRUE(notFoundInCode("case"));
      ASSERT_TRUE(foundInCode("++_ui"));
  }
  
  // Test a switch statement where the last case only contains no-ops.
  TEST_F(PruneEmptyCasesTest, SwitchStatementLastCaseOnlyNoOps)
  {
      const std::string shaderString =
          R"(#version 300 es
  
          precision mediump float;
          out vec4 my_FragColor;
  
          uniform int ui;
  
          void main(void)
          {
              int i = ui;
              switch (i)
              {
                  case 0:
                      my_FragColor = vec4(0);
                      break;
                  case 1:
                  case 2:
                      { {} }
                      int j;
                      1;
              }
          })";
      compile(shaderString);
      ASSERT_TRUE(foundInCode("switch"));
      ASSERT_TRUE(foundInCode("case", 1));
  }
  
  }  // namespace
  

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