| #!amber |
| |
| # Copyright 2019 Google LLC |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| |
| |
| # A test for a bug found by GraphicsFuzz. |
| |
| # Short description: A fragment shader with two ifs and return/continue inside a for loop |
| |
| # The test passes because the shader always writes the color red. |
| |
| SHADER vertex variant_vertex_shader PASSTHROUGH |
| |
| # variant_fragment_shader is derived from the following GLSL: |
| # #version 310 es |
| # precision highp float; |
| # |
| # layout(location = 0) out vec4 _GLF_color; |
| # |
| # void main() |
| # { |
| # _GLF_color = vec4(1.0, 0.0, 0.0, 1.0); |
| # for( |
| # int i = 1; |
| # i < 2; |
| # ++i |
| # ) |
| # { |
| # if(gl_FragCoord.y < 0.0) |
| # { |
| # if(gl_FragCoord.x < 0.0) |
| # { |
| # _GLF_color = vec4(226.696, 1.0, 1.0, 1.0); |
| # } |
| # continue; |
| # } |
| # return; |
| # } |
| # } |
| SHADER fragment variant_fragment_shader SPIRV-ASM |
| ; SPIR-V |
| ; Version: 1.0 |
| ; Generator: Khronos Glslang Reference Front End; 7 |
| ; Bound: 48 |
| ; Schema: 0 |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %9 %27 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 310 |
| OpName %4 "main" |
| OpName %9 "_GLF_color" |
| OpName %15 "i" |
| OpName %27 "gl_FragCoord" |
| OpDecorate %9 Location 0 |
| OpDecorate %15 RelaxedPrecision |
| OpDecorate %22 RelaxedPrecision |
| OpDecorate %27 BuiltIn FragCoord |
| OpDecorate %46 RelaxedPrecision |
| OpDecorate %47 RelaxedPrecision |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeFloat 32 |
| %7 = OpTypeVector %6 4 |
| %8 = OpTypePointer Output %7 |
| %9 = OpVariable %8 Output |
| %10 = OpConstant %6 1 |
| %11 = OpConstant %6 0 |
| %12 = OpConstantComposite %7 %10 %11 %11 %10 |
| %13 = OpTypeInt 32 1 |
| %14 = OpTypePointer Function %13 |
| %16 = OpConstant %13 1 |
| %23 = OpConstant %13 2 |
| %24 = OpTypeBool |
| %26 = OpTypePointer Input %7 |
| %27 = OpVariable %26 Input |
| %28 = OpTypeInt 32 0 |
| %29 = OpConstant %28 1 |
| %30 = OpTypePointer Input %6 |
| %36 = OpConstant %28 0 |
| %42 = OpConstant %6 226.695999 |
| %43 = OpConstantComposite %7 %42 %10 %10 %10 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %15 = OpVariable %14 Function |
| OpStore %9 %12 |
| OpStore %15 %16 |
| OpBranch %17 |
| %17 = OpLabel |
| OpLoopMerge %19 %20 None |
| OpBranch %21 |
| %21 = OpLabel |
| %22 = OpLoad %13 %15 |
| %25 = OpSLessThan %24 %22 %23 |
| OpBranchConditional %25 %18 %19 |
| %18 = OpLabel |
| %31 = OpAccessChain %30 %27 %29 |
| %32 = OpLoad %6 %31 |
| %33 = OpFOrdLessThan %24 %32 %11 |
| OpSelectionMerge %35 None |
| OpBranchConditional %33 %34 %35 |
| %34 = OpLabel |
| %37 = OpAccessChain %30 %27 %36 |
| %38 = OpLoad %6 %37 |
| %39 = OpFOrdLessThan %24 %38 %11 |
| OpSelectionMerge %41 None |
| OpBranchConditional %39 %40 %41 |
| %40 = OpLabel |
| OpStore %9 %43 |
| OpBranch %41 |
| %41 = OpLabel |
| OpBranch %20 |
| %35 = OpLabel |
| OpReturn |
| %20 = OpLabel |
| %46 = OpLoad %13 %15 |
| %47 = OpIAdd %13 %46 %16 |
| OpStore %15 %47 |
| OpBranch %17 |
| %19 = OpLabel |
| OpReturn |
| OpFunctionEnd |
| END |
| |
| # uniforms for variant |
| |
| |
| BUFFER variant_framebuffer FORMAT B8G8R8A8_UNORM |
| |
| PIPELINE graphics variant_pipeline |
| ATTACH variant_vertex_shader |
| ATTACH variant_fragment_shader |
| FRAMEBUFFER_SIZE 256 256 |
| BIND BUFFER variant_framebuffer AS color LOCATION 0 |
| END |
| CLEAR_COLOR variant_pipeline 0 0 0 255 |
| |
| CLEAR variant_pipeline |
| RUN variant_pipeline DRAW_RECT POS 0 0 SIZE 256 256 |
| |
| EXPECT variant_framebuffer IDX 0 0 SIZE 256 256 EQ_RGBA 255 0 0 255 |