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

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• Author : Olli Etuaho
  Date : 2017-11-15 16:32:25
  Hash : bb27c3a1
  Message : Fix VectorizeVectorScalarArithmetic statement insertion The traverser must avoid inserting two statements to the same position on a single traversal, so it doesn't trigger an assert. BUG=chromium:784078 TEST=angle_unittests Change-Id: I855054e62cc1b1cf4e6bb02af527954151c7d0e7 Reviewed-on: https://chromium-review.googlesource.com/771611 Commit-Queue: Olli Etuaho <oetuaho@nvidia.com> Reviewed-by: Jamie Madill <jmadill@chromium.org>

• src/tests/compiler_tests/VectorizeVectorScalarArithmetic_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.
  //
  // VectorizeVectorScalarArithmetic_test.cpp:
  //  Tests shader compilation with SH_REWRITE_VECTOR_SCALAR_ARITHMETIC workaround on.
  
  #include "GLSLANG/ShaderLang.h"
  #include "angle_gl.h"
  #include "gtest/gtest.h"
  #include "tests/test_utils/ShaderCompileTreeTest.h"
  
  using namespace sh;
  
  class VectorizeVectorScalarArithmeticTest : public ShaderCompileTreeTest
  {
    public:
      VectorizeVectorScalarArithmeticTest() : ShaderCompileTreeTest()
      {
          mExtraCompileOptions = SH_REWRITE_VECTOR_SCALAR_ARITHMETIC;
      }
  
    protected:
      ::GLenum getShaderType() const override { return GL_FRAGMENT_SHADER; }
      ShShaderSpec getShaderSpec() const override { return SH_GLES3_1_SPEC; }
  };
  
  // Test that two ops that generate statements in the parent block inside the same statement don't
  // trigger an assert.
  TEST_F(VectorizeVectorScalarArithmeticTest, TwoMutatedOpsWithSideEffectsInsideSameStatement)
  {
      const std::string &shaderString =
          R"(#version 300 es
          precision highp float;
  
          out vec4 res;
          uniform float uf;
  
          void main()
          {
              res = vec4(0.0);
              float f = uf;
              res += f *= f, res += f *= f;
          })";
      if (!compile(shaderString))
      {
          FAIL() << "Shader compilation failed, expecting success:\n" << mInfoLog;
      }
  }