1#!amber 2 3# Copyright 2019 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 bug found by GraphicsFuzz. 19 20# Short description: A fragment shader with two loops with breaks 21 22# The test passes because the fragment shader always writes red; the loops do nothing. 23 24SHADER vertex variant_vertex_shader PASSTHROUGH 25 26# variant_fragment_shader is derived from the following GLSL: 27# #version 310 es 28# precision highp float; 29# 30# layout(location = 0) out vec4 _GLF_color; 31# 32# void main() 33# { 34# vec4 GLF_live15c = vec4(0.0); 35# for ( 36# int GLF_live15i = 0; 37# GLF_live15i < 4; 38# GLF_live15i++) 39# { 40# if (GLF_live15i >= 3) 41# { 42# break; 43# } 44# if (GLF_live15c[1] >= 1.0) 45# { 46# GLF_live15c[GLF_live15i] = 1.0; 47# } 48# } 49# vec4 GLF_live15d = vec4(0.0); 50# for ( 51# int GLF_live15i = 0; 52# GLF_live15i < 4; 53# GLF_live15i++) 54# { 55# if (GLF_live15i >= 3) 56# { 57# break; 58# } 59# if (GLF_live15d[1] >= 1.0) 60# { 61# GLF_live15d[GLF_live15i] = 1.0; 62# } 63# } 64# _GLF_color = vec4(1.0, 0.0, 0.0, 1.0); 65# } 66SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 67; SPIR-V 68; Version: 1.0 69; Generator: Khronos Glslang Reference Front End; 7 70; Bound: 71 71; Schema: 0 72 OpCapability Shader 73 %1 = OpExtInstImport "GLSL.std.450" 74 OpMemoryModel Logical GLSL450 75 OpEntryPoint Fragment %4 "main" %69 76 OpExecutionMode %4 OriginUpperLeft 77 OpSource ESSL 310 78 OpName %4 "main" 79 OpName %9 "GLF_live15c" 80 OpName %14 "GLF_live15i" 81 OpName %45 "GLF_live15d" 82 OpName %46 "GLF_live15i" 83 OpName %69 "_GLF_color" 84 OpDecorate %14 RelaxedPrecision 85 OpDecorate %21 RelaxedPrecision 86 OpDecorate %25 RelaxedPrecision 87 OpDecorate %40 RelaxedPrecision 88 OpDecorate %42 RelaxedPrecision 89 OpDecorate %44 RelaxedPrecision 90 OpDecorate %46 RelaxedPrecision 91 OpDecorate %52 RelaxedPrecision 92 OpDecorate %54 RelaxedPrecision 93 OpDecorate %64 RelaxedPrecision 94 OpDecorate %66 RelaxedPrecision 95 OpDecorate %67 RelaxedPrecision 96 OpDecorate %69 Location 0 97 %2 = OpTypeVoid 98 %3 = OpTypeFunction %2 99 %6 = OpTypeFloat 32 100 %7 = OpTypeVector %6 4 101 %8 = OpTypePointer Function %7 102 %10 = OpConstant %6 0 103 %11 = OpConstantComposite %7 %10 %10 %10 %10 104 %12 = OpTypeInt 32 1 105 %13 = OpTypePointer Function %12 106 %15 = OpConstant %12 0 107 %22 = OpConstant %12 4 108 %23 = OpTypeBool 109 %26 = OpConstant %12 3 110 %31 = OpTypeInt 32 0 111 %32 = OpConstant %31 1 112 %33 = OpTypePointer Function %6 113 %36 = OpConstant %6 1 114 %43 = OpConstant %12 1 115 %68 = OpTypePointer Output %7 116 %69 = OpVariable %68 Output 117 %70 = OpConstantComposite %7 %36 %10 %10 %36 118 %4 = OpFunction %2 None %3 119 %5 = OpLabel 120 %9 = OpVariable %8 Function 121 %14 = OpVariable %13 Function 122 %45 = OpVariable %8 Function 123 %46 = OpVariable %13 Function 124 OpStore %9 %11 125 OpStore %14 %15 126 OpBranch %16 127 %16 = OpLabel 128 OpLoopMerge %18 %19 None 129 OpBranch %20 130 %20 = OpLabel 131 %21 = OpLoad %12 %14 132 %24 = OpSLessThan %23 %21 %22 133 OpBranchConditional %24 %17 %18 134 %17 = OpLabel 135 %25 = OpLoad %12 %14 136 %27 = OpSGreaterThanEqual %23 %25 %26 137 OpSelectionMerge %29 None 138 OpBranchConditional %27 %28 %29 139 %28 = OpLabel 140 OpBranch %18 141 %29 = OpLabel 142 %34 = OpAccessChain %33 %9 %32 143 %35 = OpLoad %6 %34 144 %37 = OpFOrdGreaterThanEqual %23 %35 %36 145 OpSelectionMerge %39 None 146 OpBranchConditional %37 %38 %39 147 %38 = OpLabel 148 %40 = OpLoad %12 %14 149 %41 = OpAccessChain %33 %9 %40 150 OpStore %41 %36 151 OpBranch %39 152 %39 = OpLabel 153 OpBranch %19 154 %19 = OpLabel 155 %42 = OpLoad %12 %14 156 %44 = OpIAdd %12 %42 %43 157 OpStore %14 %44 158 OpBranch %16 159 %18 = OpLabel 160 OpStore %45 %11 161 OpStore %46 %15 162 OpBranch %47 163 %47 = OpLabel 164 OpLoopMerge %49 %50 None 165 OpBranch %51 166 %51 = OpLabel 167 %52 = OpLoad %12 %46 168 %53 = OpSLessThan %23 %52 %22 169 OpBranchConditional %53 %48 %49 170 %48 = OpLabel 171 %54 = OpLoad %12 %46 172 %55 = OpSGreaterThanEqual %23 %54 %26 173 OpSelectionMerge %57 None 174 OpBranchConditional %55 %56 %57 175 %56 = OpLabel 176 OpBranch %49 177 %57 = OpLabel 178 %59 = OpAccessChain %33 %45 %32 179 %60 = OpLoad %6 %59 180 %61 = OpFOrdGreaterThanEqual %23 %60 %36 181 OpSelectionMerge %63 None 182 OpBranchConditional %61 %62 %63 183 %62 = OpLabel 184 %64 = OpLoad %12 %46 185 %65 = OpAccessChain %33 %45 %64 186 OpStore %65 %36 187 OpBranch %63 188 %63 = OpLabel 189 OpBranch %50 190 %50 = OpLabel 191 %66 = OpLoad %12 %46 192 %67 = OpIAdd %12 %66 %43 193 OpStore %46 %67 194 OpBranch %47 195 %49 = OpLabel 196 OpStore %69 %70 197 OpReturn 198 OpFunctionEnd 199END 200 201# uniforms for variant 202 203 204BUFFER variant_framebuffer FORMAT B8G8R8A8_UNORM 205 206PIPELINE graphics variant_pipeline 207 ATTACH variant_vertex_shader 208 ATTACH variant_fragment_shader 209 FRAMEBUFFER_SIZE 256 256 210 BIND BUFFER variant_framebuffer AS color LOCATION 0 211END 212CLEAR_COLOR variant_pipeline 0 0 0 255 213 214CLEAR variant_pipeline 215RUN variant_pipeline DRAW_RECT POS 0 0 SIZE 256 256 216 217EXPECT variant_framebuffer IDX 0 0 SIZE 256 256 EQ_RGBA 255 0 0 255 218