| #!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 an expression used in two discard guards |
| |
| # The test passes because most of the code never executes; the shader just 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; |
| # precision highp int; |
| # |
| # layout(set = 0, binding = 0) uniform buf0 |
| # { |
| # vec2 injectionSwitch; |
| # }; |
| # layout(location = 0) out vec4 _GLF_color; |
| # |
| # mediump vec4 gv; |
| # |
| # void main() |
| # { |
| # if (injectionSwitch.x > 2.0) // always false |
| # { |
| # int temp = int(max(mix(vec4(1.0), vec4(1.0), gv), 8.6)[1]); |
| # |
| # if (temp < 150) |
| # { |
| # discard; |
| # } |
| # |
| # if (temp < 180) |
| # { |
| # discard; |
| # } |
| # } |
| # _GLF_color = vec4(1.0, 0.0, 0.0, 1.0); |
| # } |
| SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 |
| ; SPIR-V |
| ; Version: 1.0 |
| ; Generator: Khronos Glslang Reference Front End; 7 |
| ; Bound: 54 |
| ; Schema: 0 |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %51 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 310 |
| OpName %4 "main" |
| OpName %8 "buf0" |
| OpMemberName %8 0 "injectionSwitch" |
| OpName %10 "" |
| OpName %24 "temp" |
| OpName %29 "gv" |
| OpName %51 "_GLF_color" |
| OpMemberDecorate %8 0 Offset 0 |
| OpDecorate %8 Block |
| OpDecorate %10 DescriptorSet 0 |
| OpDecorate %10 Binding 0 |
| OpDecorate %29 RelaxedPrecision |
| OpDecorate %30 RelaxedPrecision |
| OpDecorate %31 RelaxedPrecision |
| OpDecorate %33 RelaxedPrecision |
| OpDecorate %34 RelaxedPrecision |
| OpDecorate %36 RelaxedPrecision |
| OpDecorate %51 Location 0 |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeFloat 32 |
| %7 = OpTypeVector %6 2 |
| %8 = OpTypeStruct %7 |
| %9 = OpTypePointer Uniform %8 |
| %10 = OpVariable %9 Uniform |
| %11 = OpTypeInt 32 1 |
| %12 = OpConstant %11 0 |
| %13 = OpTypeInt 32 0 |
| %14 = OpConstant %13 0 |
| %15 = OpTypePointer Uniform %6 |
| %18 = OpConstant %6 2 |
| %19 = OpTypeBool |
| %23 = OpTypePointer Function %11 |
| %25 = OpTypeVector %6 4 |
| %26 = OpConstant %6 1 |
| %27 = OpConstantComposite %25 %26 %26 %26 %26 |
| %28 = OpTypePointer Private %25 |
| %29 = OpVariable %28 Private |
| %32 = OpConstant %6 8.60000038 |
| %35 = OpConstant %13 1 |
| %39 = OpConstant %11 150 |
| %45 = OpConstant %11 180 |
| %50 = OpTypePointer Output %25 |
| %51 = OpVariable %50 Output |
| %52 = OpConstant %6 0 |
| %53 = OpConstantComposite %25 %26 %52 %52 %26 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %24 = OpVariable %23 Function |
| %16 = OpAccessChain %15 %10 %12 %14 |
| %17 = OpLoad %6 %16 |
| %20 = OpFOrdGreaterThan %19 %17 %18 |
| OpSelectionMerge %22 None |
| OpBranchConditional %20 %21 %22 |
| %21 = OpLabel |
| %30 = OpLoad %25 %29 |
| %31 = OpExtInst %25 %1 FMix %27 %27 %30 |
| %33 = OpCompositeConstruct %25 %32 %32 %32 %32 |
| %34 = OpExtInst %25 %1 FMax %31 %33 |
| %36 = OpCompositeExtract %6 %34 1 |
| %37 = OpConvertFToS %11 %36 |
| OpStore %24 %37 |
| %38 = OpLoad %11 %24 |
| %40 = OpSLessThan %19 %38 %39 |
| OpSelectionMerge %42 None |
| OpBranchConditional %40 %41 %42 |
| %41 = OpLabel |
| OpKill |
| %42 = OpLabel |
| %44 = OpLoad %11 %24 |
| %46 = OpSLessThan %19 %44 %45 |
| OpSelectionMerge %48 None |
| OpBranchConditional %46 %47 %48 |
| %47 = OpLabel |
| OpKill |
| %48 = OpLabel |
| OpBranch %22 |
| %22 = OpLabel |
| OpStore %51 %53 |
| OpReturn |
| OpFunctionEnd |
| END |
| |
| # uniforms for variant |
| |
| # injectionSwitch |
| BUFFER variant_injectionSwitch DATA_TYPE vec2<float> DATA |
| 0.0 1.0 |
| END |
| |
| 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 |
| BIND BUFFER variant_injectionSwitch AS uniform DESCRIPTOR_SET 0 BINDING 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 |