#!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 the GraphicsFuzz project. # Short description: A fragment shader that covers a specific bitwise operator cobmining code path # The test passes because the shader always writes red. SHADER vertex variant_vertex_shader PASSTHROUGH # variant_fragment_shader is derived from the following GLSL: # #version 310 es # #define _int_1 _GLF_uniform_int_values[0] # #define _int_0 _GLF_uniform_int_values[1] # # precision highp float; # # // Contents of _GLF_uniform_int_values: [1, 0] # layout(set = 0, binding = 0) uniform buf0 # { # int _GLF_uniform_int_values[2]; # }; # # // Contents of v1: [0.0, 1.0] # layout(set = 0, binding = 1) uniform buf1 # { # vec2 v1; # }; # # layout(location = 0) out vec4 _GLF_color; # # void main() # { # bool b = true; # # // Always true. # if (v1.x > v1.y) # { # // Always false. # if (v1.x < v1.y) # { # b = false; # } # } # if (b) # { # _GLF_color = vec4(_int_1, _int_0, _int_0, _int_1); # } # else # { # _GLF_color = vec4(_int_0); # } # } SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 ; SPIR-V ; Version: 1.0 ; Generator: Khronos Glslang Reference Front End; 8 ; Bound: 67 ; Schema: 0 OpCapability Shader %1 = OpExtInstImport "GLSL.std.450" OpMemoryModel Logical GLSL450 OpEntryPoint Fragment %4 "main" %41 OpExecutionMode %4 OriginUpperLeft OpSource ESSL 310 OpName %4 "main" OpName %8 "b" OpName %12 "buf1" OpMemberName %12 0 "v1" OpName %14 "" OpName %41 "_GLF_color" OpName %44 "buf0" OpMemberName %44 0 "_GLF_uniform_int_values" OpName %46 "" OpMemberDecorate %12 0 Offset 0 OpDecorate %12 Block OpDecorate %14 DescriptorSet 0 OpDecorate %14 Binding 1 OpDecorate %41 Location 0 OpDecorate %43 ArrayStride 16 OpMemberDecorate %44 0 RelaxedPrecision OpMemberDecorate %44 0 Offset 0 OpDecorate %44 Block OpDecorate %46 DescriptorSet 0 OpDecorate %46 Binding 0 OpDecorate %49 RelaxedPrecision OpDecorate %53 RelaxedPrecision OpDecorate %56 RelaxedPrecision OpDecorate %59 RelaxedPrecision OpDecorate %64 RelaxedPrecision %2 = OpTypeVoid %3 = OpTypeFunction %2 %6 = OpTypeBool %7 = OpTypePointer Function %6 %9 = OpConstantTrue %6 %10 = OpTypeFloat 32 %11 = OpTypeVector %10 2 %12 = OpTypeStruct %11 %13 = OpTypePointer Uniform %12 %14 = OpVariable %13 Uniform %15 = OpTypeInt 32 1 %16 = OpConstant %15 0 %17 = OpTypeInt 32 0 %18 = OpConstant %17 0 %19 = OpTypePointer Uniform %10 %22 = OpConstant %17 1 %35 = OpConstantFalse %6 %39 = OpTypeVector %10 4 %40 = OpTypePointer Output %39 %41 = OpVariable %40 Output %42 = OpConstant %17 2 %43 = OpTypeArray %15 %42 %44 = OpTypeStruct %43 %45 = OpTypePointer Uniform %44 %46 = OpVariable %45 Uniform %47 = OpTypePointer Uniform %15 %51 = OpConstant %15 1 %4 = OpFunction %2 None %3 %5 = OpLabel %8 = OpVariable %7 Function OpStore %8 %9 %20 = OpAccessChain %19 %14 %16 %18 %21 = OpLoad %10 %20 %23 = OpAccessChain %19 %14 %16 %22 %24 = OpLoad %10 %23 %25 = OpFOrdGreaterThan %6 %21 %24 OpSelectionMerge %27 None OpBranchConditional %25 %26 %27 %26 = OpLabel %28 = OpAccessChain %19 %14 %16 %18 %29 = OpLoad %10 %28 %30 = OpAccessChain %19 %14 %16 %22 %31 = OpLoad %10 %30 %32 = OpFOrdLessThan %6 %29 %31 OpSelectionMerge %34 None OpBranchConditional %32 %33 %34 %33 = OpLabel OpStore %8 %35 OpBranch %34 %34 = OpLabel OpBranch %27 %27 = OpLabel %36 = OpLoad %6 %8 OpSelectionMerge %38 None OpBranchConditional %36 %37 %62 %37 = OpLabel %48 = OpAccessChain %47 %46 %16 %16 %49 = OpLoad %15 %48 %50 = OpConvertSToF %10 %49 %52 = OpAccessChain %47 %46 %16 %51 %53 = OpLoad %15 %52 %54 = OpConvertSToF %10 %53 %55 = OpAccessChain %47 %46 %16 %51 %56 = OpLoad %15 %55 %57 = OpConvertSToF %10 %56 %58 = OpAccessChain %47 %46 %16 %16 %59 = OpLoad %15 %58 %60 = OpConvertSToF %10 %59 %61 = OpCompositeConstruct %39 %50 %54 %57 %60 OpStore %41 %61 OpBranch %38 %62 = OpLabel %63 = OpAccessChain %47 %46 %16 %51 %64 = OpLoad %15 %63 %65 = OpConvertSToF %10 %64 %66 = OpCompositeConstruct %39 %65 %65 %65 %65 OpStore %41 %66 OpBranch %38 %38 = OpLabel OpReturn OpFunctionEnd END # uniforms for variant # v1 BUFFER variant_v1 DATA_TYPE vec2 STD140 DATA 0.0 1.0 END # _GLF_uniform_int_values BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA 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_v1 AS uniform DESCRIPTOR_SET 0 BINDING 1 BIND BUFFER variant__GLF_uniform_int_values 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