| #!amber |
| |
| # Copyright 2020 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 coverage-gap found by GraphicsFuzz. |
| |
| # Short description: A fragment shader that covers a specific instruction folding path. |
| |
| # The test passes because shader always writes 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; |
| # layout(set = 0, binding = 0) uniform buf0 |
| # { |
| # vec2 threeandfour; // (3.0, 4.0) |
| # }; |
| # |
| # void main() |
| # { |
| # vec4 v = vec4(2, 3, 4, 5); |
| # // mix returns (1.0, 6.0) |
| # v.xy = mix(vec2(2, 6), vec2(1.0, threeandfour.y), bvec2(true, false)); |
| # if (v == vec4(1, 6, 4, 5)) |
| # _GLF_color = vec4(1, 0, 0, 1); |
| # else |
| # _GLF_color = vec4(0); |
| # } |
| SHADER fragment variant_fragment_shader SPIRV-ASM |
| ; SPIR-V |
| ; Version: 1.0 |
| ; Generator: Khronos Glslang Reference Front End; 8 |
| ; Bound: 51 |
| ; Schema: 0 |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %46 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 310 |
| OpName %4 "main" |
| OpName %9 "v" |
| OpName %19 "buf0" |
| OpMemberName %19 0 "threeandfour" |
| OpName %21 "" |
| OpName %46 "_GLF_color" |
| OpMemberDecorate %19 0 Offset 0 |
| OpDecorate %19 Block |
| OpDecorate %21 DescriptorSet 0 |
| OpDecorate %21 Binding 0 |
| OpDecorate %46 Location 0 |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeFloat 32 |
| %7 = OpTypeVector %6 4 |
| %8 = OpTypePointer Function %7 |
| %10 = OpConstant %6 2 |
| %11 = OpConstant %6 3 |
| %12 = OpConstant %6 4 |
| %13 = OpConstant %6 5 |
| %14 = OpConstantComposite %7 %10 %11 %12 %13 |
| %15 = OpTypeVector %6 2 |
| %16 = OpConstant %6 6 |
| %17 = OpConstantComposite %15 %10 %16 |
| %18 = OpConstant %6 1 |
| %19 = OpTypeStruct %15 |
| %20 = OpTypePointer Uniform %19 |
| %21 = OpVariable %20 Uniform |
| %22 = OpTypeInt 32 1 |
| %23 = OpConstant %22 0 |
| %24 = OpTypeInt 32 0 |
| %25 = OpConstant %24 1 |
| %26 = OpTypePointer Uniform %6 |
| %30 = OpTypeBool |
| %31 = OpTypeVector %30 2 |
| %32 = OpConstantTrue %30 |
| %33 = OpConstantFalse %30 |
| %34 = OpConstantComposite %31 %32 %33 |
| %39 = OpConstantComposite %7 %18 %16 %12 %13 |
| %40 = OpTypeVector %30 4 |
| %45 = OpTypePointer Output %7 |
| %46 = OpVariable %45 Output |
| %47 = OpConstant %6 0 |
| %48 = OpConstantComposite %7 %18 %47 %47 %18 |
| %50 = OpConstantComposite %7 %47 %47 %47 %47 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %9 = OpVariable %8 Function |
| OpStore %9 %14 |
| %27 = OpAccessChain %26 %21 %23 %25 |
| %28 = OpLoad %6 %27 |
| %29 = OpCompositeConstruct %15 %18 %28 |
| %35 = OpSelect %15 %34 %29 %17 |
| %36 = OpLoad %7 %9 |
| %37 = OpVectorShuffle %7 %36 %35 4 5 2 3 |
| OpStore %9 %37 |
| %38 = OpLoad %7 %9 |
| %41 = OpFOrdEqual %40 %38 %39 |
| %42 = OpAll %30 %41 |
| OpSelectionMerge %44 None |
| OpBranchConditional %42 %43 %49 |
| %43 = OpLabel |
| OpStore %46 %48 |
| OpBranch %44 |
| %49 = OpLabel |
| OpStore %46 %50 |
| OpBranch %44 |
| %44 = OpLabel |
| OpReturn |
| OpFunctionEnd |
| END |
| |
| # uniforms for variant |
| |
| # threeandfour |
| BUFFER variant_threeandfour DATA_TYPE vec2<float> DATA |
| 3.0 4.0 |
| 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_threeandfour 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 |