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

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• Hash : b980c563
  Author :
  Date : 2018-11-27T11:34:27
  

  Reformat all cpp and h files.
  
  This applies git cl format --full to all ANGLE sources.
  
  Bug: angleproject:2986
  Change-Id: Ib504e618c1589332a37e97696cdc3515d739308f
  Reviewed-on: https://chromium-review.googlesource.com/c/1351367
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>
  

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• src/tests/compiler_tests/PrunePureLiteralStatements_test.cpp

• //
  // Copyright (c) 2017 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.
  //
  // PrunePureLiteralStatements_test.cpp:
  //   Tests for pruning literal statements.
  //
  
  #include "angle_gl.h"
  #include "gtest/gtest.h"
  #include "tests/test_utils/compiler_test.h"
  
  using namespace sh;
  
  namespace
  {
  
  class PrunePureLiteralStatementsTest : public MatchOutputCodeTest
  {
    public:
      // The PrunePureLiteralStatements pass is used when outputting ESSL
      PrunePureLiteralStatementsTest() : MatchOutputCodeTest(GL_FRAGMENT_SHADER, 0, SH_ESSL_OUTPUT) {}
  };
  
  // Most basic test for the pruning
  TEST_F(PrunePureLiteralStatementsTest, FloatLiteralStatement)
  {
      const std::string shaderString =
          R"(precision mediump float;
          void main()
          {
             float f = 41.0;
             42.0;
             gl_FragColor = vec4(f);
          })";
      compile(shaderString);
      ASSERT_TRUE(foundInCode("41"));
      ASSERT_TRUE(notFoundInCode("42"));
  }
  
  // Test the pruning works for constructed types too
  TEST_F(PrunePureLiteralStatementsTest, ConstructorLiteralStatement)
  {
      const std::string shaderString =
          R"(precision mediump float;
          void main()
          {
              vec2 f = vec2(41.0, 41.0);
              vec2(42.0, 42.0);
              gl_FragColor = vec4(f, 0.0, 0.0);
          })";
      compile(shaderString);
      ASSERT_TRUE(foundInCode("41"));
      ASSERT_TRUE(notFoundInCode("42"));
  }
  
  // Test the pruning works when the literal is a (non-trivial) expression
  TEST_F(PrunePureLiteralStatementsTest, ExpressionLiteralStatement)
  {
      const std::string shaderString =
          "precision mediump float;\n"
          "void main()\n"
          "{\n"
          "   vec2(21.0, 21.0) + vec2(21.0, 21.0);\n"
          "}\n";
      compile(shaderString);
      ASSERT_TRUE(notFoundInCode("21"));
      ASSERT_TRUE(notFoundInCode("42"));
  }
  
  // Test that the pruning happens in the for-loop expression too
  TEST_F(PrunePureLiteralStatementsTest, ForLoopLiteralExpression)
  {
      const std::string shaderString =
          "precision mediump float;\n"
          "void main()\n"
          "{\n"
          "    for (;; vec2(42.0, 42.0)) {}\n"
          "}\n";
      compile(shaderString);
      ASSERT_TRUE(notFoundInCode("42"));
  }
  
  // Test that the pruning correctly handles the pruning inside switch statements - for a switch with
  // one empty case.
  TEST_F(PrunePureLiteralStatementsTest, SwitchLiteralExpressionEmptyCase)
  {
      const std::string shaderString =
          "#version 300 es\n"
          "precision mediump float;\n"
          "void main()\n"
          "{\n"
          "    switch(1)\n"
          "    {\n"
          "      default:\n"
          "        42;\n"
          "    }\n"
          "}\n";
      compile(shaderString);
      ASSERT_TRUE(notFoundInCode("default"));
      ASSERT_TRUE(notFoundInCode("42"));
  }
  
  // Test that the pruning correctly handles the pruning inside switch statements - for a switch with
  // multiple cases.
  TEST_F(PrunePureLiteralStatementsTest, SwitchLiteralExpressionEmptyCases)
  {
      const std::string shaderString =
          "#version 300 es\n"
          "precision mediump float;\n"
          "void main()\n"
          "{\n"
          "    switch(1)\n"
          "    {\n"
          "      case 1:\n"
          "      case 2:\n"
          "      default:\n"
          "        42;\n"
          "    }\n"
          "}\n";
      compile(shaderString);
      ASSERT_TRUE(notFoundInCode("default"));
      ASSERT_TRUE(notFoundInCode("case"));
      ASSERT_TRUE(notFoundInCode("42"));
  }
  
  // Test that the pruning correctly handles the pruning inside switch statements - only cases at the
  // end are deleted
  TEST_F(PrunePureLiteralStatementsTest, SwitchLiteralExpressionOnlyLastCase)
  {
      const std::string shaderString =
          "#version 300 es\n"
          "precision mediump float;\n"
          "void main()\n"
          "{\n"
          "    switch(1)\n"
          "    {\n"
          "      case 1:\n"
          "      default:\n"
          "        42;\n"
          "        break;\n"
          "    }\n"
          "}\n";
      compile(shaderString);
      ASSERT_TRUE(foundInCode("default"));
      ASSERT_TRUE(foundInCode("case"));
      ASSERT_TRUE(notFoundInCode("42"));
  }
  
  // Test that the pruning correctly handles the pruning inside switch statements - pruning isn't
  // stopped by literal statements
  TEST_F(PrunePureLiteralStatementsTest, SwitchLiteralExpressionLiteralDoesntStop)
  {
      const std::string shaderString =
          "#version 300 es\n"
          "precision mediump float;\n"
          "void main()\n"
          "{\n"
          "    switch(1)\n"
          "    {\n"
          "      case 1:\n"
          "        42;\n"
          "      case 2:\n"
          "        43;\n"
          "    }\n"
          "}\n";
      compile(shaderString);
      ASSERT_TRUE(notFoundInCode("case"));
      ASSERT_TRUE(notFoundInCode("42"));
      ASSERT_TRUE(notFoundInCode("43"));
  }
  
  }  // namespace
  

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