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: Covers specific instruction simplify and combine compare code paths 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_0 _GLF_uniform_int_values[0] 29# #define _int_10 _GLF_uniform_int_values[1] 30# #define _float_1_0 _GLF_uniform_float_values[0] 31# #define _float_0_25 _GLF_uniform_float_values[1] 32# 33# precision highp float; 34# precision highp int; 35# 36# // Contents of _GLF_uniform_float_values: [1.0, 0.25] 37# layout(set = 0, binding = 0) uniform buf0 38# { 39# float _GLF_uniform_float_values[2]; 40# }; 41# 42# // Contents of _GLF_uniform_int_values: [0, 10] 43# layout(set = 0, binding = 1) uniform buf1 44# { 45# int _GLF_uniform_int_values[2]; 46# }; 47# 48# layout(location = 0) out vec4 _GLF_color; 49# 50# void main() 51# { 52# _GLF_color = vec4(_int_0); 53# for (int i = _int_0; i < _int_10; i++) 54# { 55# // True when i = 0. 56# if (!(_float_0_25 <= float(i))) 57# { 58# _GLF_color += vec4(_float_1_0, i, i, _float_1_0); 59# } 60# } 61# } 62SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 63; SPIR-V 64; Version: 1.0 65; Generator: Khronos Glslang Reference Front End; 8 66; Bound: 64 67; Schema: 0 68 OpCapability Shader 69 %1 = OpExtInstImport "GLSL.std.450" 70 OpMemoryModel Logical GLSL450 71 OpEntryPoint Fragment %4 "main" %9 72 OpExecutionMode %4 OriginUpperLeft 73 OpSource ESSL 310 74 OpName %4 "main" 75 OpName %9 "_GLF_color" 76 OpName %14 "buf1" 77 OpMemberName %14 0 "_GLF_uniform_int_values" 78 OpName %16 "" 79 OpName %24 "i" 80 OpName %39 "buf0" 81 OpMemberName %39 0 "_GLF_uniform_float_values" 82 OpName %41 "" 83 OpDecorate %9 Location 0 84 OpDecorate %13 ArrayStride 16 85 OpMemberDecorate %14 0 Offset 0 86 OpDecorate %14 Block 87 OpDecorate %16 DescriptorSet 0 88 OpDecorate %16 Binding 1 89 OpDecorate %38 ArrayStride 16 90 OpMemberDecorate %39 0 Offset 0 91 OpDecorate %39 Block 92 OpDecorate %41 DescriptorSet 0 93 OpDecorate %41 Binding 0 94 %2 = OpTypeVoid 95 %3 = OpTypeFunction %2 96 %6 = OpTypeFloat 32 97 %7 = OpTypeVector %6 4 98 %8 = OpTypePointer Output %7 99 %9 = OpVariable %8 Output 100 %10 = OpTypeInt 32 1 101 %11 = OpTypeInt 32 0 102 %12 = OpConstant %11 2 103 %13 = OpTypeArray %10 %12 104 %14 = OpTypeStruct %13 105 %15 = OpTypePointer Uniform %14 106 %16 = OpVariable %15 Uniform 107 %17 = OpConstant %10 0 108 %18 = OpTypePointer Uniform %10 109 %23 = OpTypePointer Function %10 110 %33 = OpConstant %10 1 111 %36 = OpTypeBool 112 %38 = OpTypeArray %6 %12 113 %39 = OpTypeStruct %38 114 %40 = OpTypePointer Uniform %39 115 %41 = OpVariable %40 Uniform 116 %42 = OpTypePointer Uniform %6 117 %4 = OpFunction %2 None %3 118 %5 = OpLabel 119 %24 = OpVariable %23 Function 120 %19 = OpAccessChain %18 %16 %17 %17 121 %20 = OpLoad %10 %19 122 %21 = OpConvertSToF %6 %20 123 %22 = OpCompositeConstruct %7 %21 %21 %21 %21 124 OpStore %9 %22 125 %25 = OpAccessChain %18 %16 %17 %17 126 %26 = OpLoad %10 %25 127 OpStore %24 %26 128 OpBranch %27 129 %27 = OpLabel 130 OpLoopMerge %29 %30 None 131 OpBranch %31 132 %31 = OpLabel 133 %32 = OpLoad %10 %24 134 %34 = OpAccessChain %18 %16 %17 %33 135 %35 = OpLoad %10 %34 136 %37 = OpSLessThan %36 %32 %35 137 OpBranchConditional %37 %28 %29 138 %28 = OpLabel 139 %43 = OpAccessChain %42 %41 %17 %33 140 %44 = OpLoad %6 %43 141 %45 = OpLoad %10 %24 142 %46 = OpConvertSToF %6 %45 143 %47 = OpFOrdLessThanEqual %36 %44 %46 144 %48 = OpLogicalNot %36 %47 145 OpSelectionMerge %50 None 146 OpBranchConditional %48 %49 %50 147 %49 = OpLabel 148 %51 = OpAccessChain %42 %41 %17 %17 149 %52 = OpLoad %6 %51 150 %53 = OpLoad %10 %24 151 %54 = OpConvertSToF %6 %53 152 %55 = OpLoad %10 %24 153 %56 = OpConvertSToF %6 %55 154 %57 = OpAccessChain %42 %41 %17 %17 155 %58 = OpLoad %6 %57 156 %59 = OpCompositeConstruct %7 %52 %54 %56 %58 157 %60 = OpLoad %7 %9 158 %61 = OpFAdd %7 %60 %59 159 OpStore %9 %61 160 OpBranch %50 161 %50 = OpLabel 162 OpBranch %30 163 %30 = OpLabel 164 %62 = OpLoad %10 %24 165 %63 = OpIAdd %10 %62 %33 166 OpStore %24 %63 167 OpBranch %27 168 %29 = OpLabel 169 OpReturn 170 OpFunctionEnd 171END 172 173# uniforms for variant 174 175# _GLF_uniform_int_values 176BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA 177 0 10 178END 179# _GLF_uniform_float_values 180BUFFER variant__GLF_uniform_float_values DATA_TYPE float[] STD140 DATA 181 1.0 0.25 182END 183 184BUFFER variant_framebuffer FORMAT B8G8R8A8_UNORM 185 186PIPELINE graphics variant_pipeline 187 ATTACH variant_vertex_shader 188 ATTACH variant_fragment_shader 189 FRAMEBUFFER_SIZE 256 256 190 BIND BUFFER variant_framebuffer AS color LOCATION 0 191 BIND BUFFER variant__GLF_uniform_int_values AS uniform DESCRIPTOR_SET 0 BINDING 1 192 BIND BUFFER variant__GLF_uniform_float_values AS uniform DESCRIPTOR_SET 0 BINDING 0 193END 194CLEAR_COLOR variant_pipeline 0 0 0 255 195 196CLEAR variant_pipeline 197RUN variant_pipeline DRAW_RECT POS 0 0 SIZE 256 256 198 199EXPECT variant_framebuffer IDX 0 0 SIZE 256 256 EQ_RGBA 255 0 0 255 200