1#!amber 2 3# Copyright 2020 Google LLC 4# 5# Licensed under the Apache License, Version 2.0 (the "License"); 6# you may not use this file except in compliance with the License. 7# You may obtain a copy of the License at 8# 9# http://www.apache.org/licenses/LICENSE-2.0 10# 11# Unless required by applicable law or agreed to in writing, software 12# distributed under the License is distributed on an "AS IS" BASIS, 13# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14# See the License for the specific language governing permissions and 15# limitations under the License. 16 17 18# A test for a coverage-gap found by the GraphicsFuzz project. 19 20# Short description: A fragment shader that covers a specific value tracking path 21 22# The test passes because the shader always writes red. 23 24SHADER vertex variant_vertex_shader PASSTHROUGH 25 26# variant_fragment_shader is derived from the following GLSL: 27# #version 310 es 28# #define _int_1 _GLF_uniform_int_values[0] 29# #define _int_0 _GLF_uniform_int_values[1] 30# #define _uint_1065353216 _GLF_uniform_uint_values[0] 31# #define _float_1_0 _GLF_uniform_float_values[0] 32# 33# precision highp float; 34# precision highp int; 35# 36# // Contents of _GLF_uniform_int_values: [1, 0] 37# layout(set = 0, binding = 0) uniform buf0 38# { 39# int _GLF_uniform_int_values[2]; 40# }; 41# 42# // Contents of _GLF_uniform_float_values: 1.0 43# layout(set = 0, binding = 1) uniform buf1 44# { 45# float _GLF_uniform_float_values[1]; 46# }; 47# 48# // Contents of _GLF_uniform_uint_values: 1065353216 49# layout(set = 0, binding = 2) uniform buf2 50# { 51# uint _GLF_uniform_uint_values[1]; 52# }; 53# 54# layout(location = 0) out vec4 _GLF_color; 55# 56# void main() 57# { 58# float f = uintBitsToFloat(max(100u, _uint_1065353216)); 59# if (f == _float_1_0) 60# { 61# _GLF_color = vec4(_int_1, _int_0, _int_0, _int_1); 62# } 63# else 64# { 65# _GLF_color = vec4(_int_0); 66# } 67# } 68SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 69; SPIR-V 70; Version: 1.0 71; Generator: Khronos Glslang Reference Front End; 8 72; Bound: 63 73; Schema: 0 74 OpCapability Shader 75 %1 = OpExtInstImport "GLSL.std.450" 76 OpMemoryModel Logical GLSL450 77 OpEntryPoint Fragment %4 "main" %37 78 OpExecutionMode %4 OriginUpperLeft 79 OpSource ESSL 310 80 OpName %4 "main" 81 OpName %8 "f" 82 OpName %13 "buf2" 83 OpMemberName %13 0 "_GLF_uniform_uint_values" 84 OpName %15 "" 85 OpName %25 "buf1" 86 OpMemberName %25 0 "_GLF_uniform_float_values" 87 OpName %27 "" 88 OpName %37 "_GLF_color" 89 OpName %40 "buf0" 90 OpMemberName %40 0 "_GLF_uniform_int_values" 91 OpName %42 "" 92 OpDecorate %12 ArrayStride 16 93 OpMemberDecorate %13 0 Offset 0 94 OpDecorate %13 Block 95 OpDecorate %15 DescriptorSet 0 96 OpDecorate %15 Binding 2 97 OpDecorate %24 ArrayStride 16 98 OpMemberDecorate %25 0 Offset 0 99 OpDecorate %25 Block 100 OpDecorate %27 DescriptorSet 0 101 OpDecorate %27 Binding 1 102 OpDecorate %37 Location 0 103 OpDecorate %39 ArrayStride 16 104 OpMemberDecorate %40 0 Offset 0 105 OpDecorate %40 Block 106 OpDecorate %42 DescriptorSet 0 107 OpDecorate %42 Binding 0 108 %2 = OpTypeVoid 109 %3 = OpTypeFunction %2 110 %6 = OpTypeFloat 32 111 %7 = OpTypePointer Function %6 112 %9 = OpTypeInt 32 0 113 %10 = OpConstant %9 100 114 %11 = OpConstant %9 1 115 %12 = OpTypeArray %9 %11 116 %13 = OpTypeStruct %12 117 %14 = OpTypePointer Uniform %13 118 %15 = OpVariable %14 Uniform 119 %16 = OpTypeInt 32 1 120 %17 = OpConstant %16 0 121 %18 = OpTypePointer Uniform %9 122 %24 = OpTypeArray %6 %11 123 %25 = OpTypeStruct %24 124 %26 = OpTypePointer Uniform %25 125 %27 = OpVariable %26 Uniform 126 %28 = OpTypePointer Uniform %6 127 %31 = OpTypeBool 128 %35 = OpTypeVector %6 4 129 %36 = OpTypePointer Output %35 130 %37 = OpVariable %36 Output 131 %38 = OpConstant %9 2 132 %39 = OpTypeArray %16 %38 133 %40 = OpTypeStruct %39 134 %41 = OpTypePointer Uniform %40 135 %42 = OpVariable %41 Uniform 136 %43 = OpTypePointer Uniform %16 137 %47 = OpConstant %16 1 138 %4 = OpFunction %2 None %3 139 %5 = OpLabel 140 %8 = OpVariable %7 Function 141 %19 = OpAccessChain %18 %15 %17 %17 142 %20 = OpLoad %9 %19 143 %21 = OpExtInst %9 %1 UMax %10 %20 144 %22 = OpBitcast %6 %21 145 OpStore %8 %22 146 %23 = OpLoad %6 %8 147 %29 = OpAccessChain %28 %27 %17 %17 148 %30 = OpLoad %6 %29 149 %32 = OpFOrdEqual %31 %23 %30 150 OpSelectionMerge %34 None 151 OpBranchConditional %32 %33 %58 152 %33 = OpLabel 153 %44 = OpAccessChain %43 %42 %17 %17 154 %45 = OpLoad %16 %44 155 %46 = OpConvertSToF %6 %45 156 %48 = OpAccessChain %43 %42 %17 %47 157 %49 = OpLoad %16 %48 158 %50 = OpConvertSToF %6 %49 159 %51 = OpAccessChain %43 %42 %17 %47 160 %52 = OpLoad %16 %51 161 %53 = OpConvertSToF %6 %52 162 %54 = OpAccessChain %43 %42 %17 %17 163 %55 = OpLoad %16 %54 164 %56 = OpConvertSToF %6 %55 165 %57 = OpCompositeConstruct %35 %46 %50 %53 %56 166 OpStore %37 %57 167 OpBranch %34 168 %58 = OpLabel 169 %59 = OpAccessChain %43 %42 %17 %47 170 %60 = OpLoad %16 %59 171 %61 = OpConvertSToF %6 %60 172 %62 = OpCompositeConstruct %35 %61 %61 %61 %61 173 OpStore %37 %62 174 OpBranch %34 175 %34 = OpLabel 176 OpReturn 177 OpFunctionEnd 178END 179 180# uniforms for variant 181 182# _GLF_uniform_uint_values 183BUFFER variant__GLF_uniform_uint_values DATA_TYPE int32[] STD140 DATA 184 1065353216 185END 186# _GLF_uniform_float_values 187BUFFER variant__GLF_uniform_float_values DATA_TYPE float[] STD140 DATA 188 1.0 189END 190# _GLF_uniform_int_values 191BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA 192 1 0 193END 194 195BUFFER variant_framebuffer FORMAT B8G8R8A8_UNORM 196 197PIPELINE graphics variant_pipeline 198 ATTACH variant_vertex_shader 199 ATTACH variant_fragment_shader 200 FRAMEBUFFER_SIZE 256 256 201 BIND BUFFER variant_framebuffer AS color LOCATION 0 202 BIND BUFFER variant__GLF_uniform_uint_values AS uniform DESCRIPTOR_SET 0 BINDING 2 203 BIND BUFFER variant__GLF_uniform_float_values AS uniform DESCRIPTOR_SET 0 BINDING 1 204 BIND BUFFER variant__GLF_uniform_int_values AS uniform DESCRIPTOR_SET 0 BINDING 0 205END 206CLEAR_COLOR variant_pipeline 0 0 0 255 207 208CLEAR variant_pipeline 209RUN variant_pipeline DRAW_RECT POS 0 0 SIZE 256 256 210 211EXPECT variant_framebuffer IDX 0 0 SIZE 256 256 EQ_RGBA 255 0 0 255 212