#!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 const folding 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] # #define _float_0_0 _GLF_uniform_float_values[0] # # precision highp float; # # precision highp int; # # // Contents of _GLF_uniform_int_values: [1, 0] # layout(set = 0, binding = 0) uniform buf0 # { # int _GLF_uniform_int_values[2]; # }; # # // Contents of _GLF_uniform_float_values: 0.0 # layout(set = 0, binding = 1) uniform buf1 # { # float _GLF_uniform_float_values[1]; # }; # # layout(location = 0) out vec4 _GLF_color; # # void main() # { # // This results in an undefined value, but not in undefined behavior. # float f = pow(40.33, ldexp(1.0, 98980)); # # if (_int_1 == (_int_1 + _int_0) || f > _float_0_0) # _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: 70 ; 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 "f" OpName %19 "buf0" OpMemberName %19 0 "_GLF_uniform_int_values" OpName %21 "" OpName %39 "buf1" OpMemberName %39 0 "_GLF_uniform_float_values" OpName %41 "" OpName %51 "_GLF_color" OpDecorate %18 ArrayStride 16 OpMemberDecorate %19 0 Offset 0 OpDecorate %19 Block OpDecorate %21 DescriptorSet 0 OpDecorate %21 Binding 0 OpDecorate %38 ArrayStride 16 OpMemberDecorate %39 0 Offset 0 OpDecorate %39 Block OpDecorate %41 DescriptorSet 0 OpDecorate %41 Binding 1 OpDecorate %51 Location 0 %2 = OpTypeVoid %3 = OpTypeFunction %2 %6 = OpTypeFloat 32 %7 = OpTypePointer Function %6 %9 = OpConstant %6 40.3300018 %10 = OpConstant %6 1 %11 = OpTypeInt 32 1 %12 = OpConstant %11 98980 %15 = OpTypeBool %16 = OpTypeInt 32 0 %17 = OpConstant %16 2 %18 = OpTypeArray %11 %17 %19 = OpTypeStruct %18 %20 = OpTypePointer Uniform %19 %21 = OpVariable %20 Uniform %22 = OpConstant %11 0 %23 = OpTypePointer Uniform %11 %28 = OpConstant %11 1 %37 = OpConstant %16 1 %38 = OpTypeArray %6 %37 %39 = OpTypeStruct %38 %40 = OpTypePointer Uniform %39 %41 = OpVariable %40 Uniform %42 = OpTypePointer Uniform %6 %49 = OpTypeVector %6 4 %50 = OpTypePointer Output %49 %51 = OpVariable %50 Output %4 = OpFunction %2 None %3 %5 = OpLabel %8 = OpVariable %7 Function %13 = OpExtInst %6 %1 Ldexp %10 %12 %14 = OpExtInst %6 %1 Pow %9 %13 OpStore %8 %14 %24 = OpAccessChain %23 %21 %22 %22 %25 = OpLoad %11 %24 %26 = OpAccessChain %23 %21 %22 %22 %27 = OpLoad %11 %26 %29 = OpAccessChain %23 %21 %22 %28 %30 = OpLoad %11 %29 %31 = OpIAdd %11 %27 %30 %32 = OpIEqual %15 %25 %31 %33 = OpLogicalNot %15 %32 OpSelectionMerge %35 None OpBranchConditional %33 %34 %35 %34 = OpLabel %36 = OpLoad %6 %8 %43 = OpAccessChain %42 %41 %22 %22 %44 = OpLoad %6 %43 %45 = OpFOrdGreaterThan %15 %36 %44 OpBranch %35 %35 = OpLabel %46 = OpPhi %15 %32 %5 %45 %34 OpSelectionMerge %48 None OpBranchConditional %46 %47 %65 %47 = OpLabel %52 = OpAccessChain %23 %21 %22 %22 %53 = OpLoad %11 %52 %54 = OpConvertSToF %6 %53 %55 = OpAccessChain %23 %21 %22 %28 %56 = OpLoad %11 %55 %57 = OpConvertSToF %6 %56 %58 = OpAccessChain %23 %21 %22 %28 %59 = OpLoad %11 %58 %60 = OpConvertSToF %6 %59 %61 = OpAccessChain %23 %21 %22 %22 %62 = OpLoad %11 %61 %63 = OpConvertSToF %6 %62 %64 = OpCompositeConstruct %49 %54 %57 %60 %63 OpStore %51 %64 OpBranch %48 %65 = OpLabel %66 = OpAccessChain %23 %21 %22 %28 %67 = OpLoad %11 %66 %68 = OpConvertSToF %6 %67 %69 = OpCompositeConstruct %49 %68 %68 %68 %68 OpStore %51 %69 OpBranch %48 %48 = OpLabel OpReturn OpFunctionEnd END # uniforms for variant # _GLF_uniform_float_values BUFFER variant__GLF_uniform_float_values DATA_TYPE float[] STD140 DATA 0.0 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__GLF_uniform_float_values 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