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 instruction simplification 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 _float_0_0 _GLF_uniform_float_values[0] 31# #define _float_1_0 _GLF_uniform_float_values[1] 32# 33# precision highp float; 34# 35# // Contents of _GLF_uniform_int_values: [1, 0] 36# layout(set = 0, binding = 0) uniform buf0 37# { 38# int _GLF_uniform_int_values[2]; 39# }; 40# 41# // Contents of _GLF_uniform_float_values: [0.0, 1.0] 42# layout(set = 0, binding = 1) uniform buf1 43# { 44# float _GLF_uniform_float_values[2]; 45# }; 46# 47# layout(location = 0) out vec4 _GLF_color; 48# 49# void main() 50# { 51# _GLF_color = vec4(_int_1, _int_0, _int_0, _int_1); 52# 53# float a = atanh(_float_1_0) - log(-1.0); 54# if (a != _float_0_0) 55# { 56# _GLF_color.g = _float_0_0; 57# } 58# } 59DEVICE_EXTENSION VK_KHR_shader_float_controls 60SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 61; SPIR-V 62; Version: 1.0 63; Generator: Khronos Glslang Reference Front End; 8 64; Bound: 57 65; Schema: 0 66 OpCapability Shader 67 OpCapability SignedZeroInfNanPreserve 68 OpExtension "SPV_KHR_float_controls" 69 %1 = OpExtInstImport "GLSL.std.450" 70 OpMemoryModel Logical GLSL450 71 OpEntryPoint Fragment %4 "main" %9 72 OpExecutionMode %4 OriginUpperLeft 73 OpExecutionMode %4 SignedZeroInfNanPreserve 32 74 OpSource ESSL 310 75 OpName %4 "main" 76 OpName %9 "_GLF_color" 77 OpName %14 "buf0" 78 OpMemberName %14 0 "_GLF_uniform_int_values" 79 OpName %16 "" 80 OpName %34 "a" 81 OpName %36 "buf1" 82 OpMemberName %36 0 "_GLF_uniform_float_values" 83 OpName %38 "" 84 OpDecorate %9 Location 0 85 OpDecorate %13 ArrayStride 16 86 OpMemberDecorate %14 0 RelaxedPrecision 87 OpMemberDecorate %14 0 Offset 0 88 OpDecorate %14 Block 89 OpDecorate %16 DescriptorSet 0 90 OpDecorate %16 Binding 0 91 OpDecorate %20 RelaxedPrecision 92 OpDecorate %24 RelaxedPrecision 93 OpDecorate %27 RelaxedPrecision 94 OpDecorate %30 RelaxedPrecision 95 OpDecorate %35 ArrayStride 16 96 OpMemberDecorate %36 0 Offset 0 97 OpDecorate %36 Block 98 OpDecorate %38 DescriptorSet 0 99 OpDecorate %38 Binding 1 100 %2 = OpTypeVoid 101 %3 = OpTypeFunction %2 102 %6 = OpTypeFloat 32 103 %7 = OpTypeVector %6 4 104 %8 = OpTypePointer Output %7 105 %9 = OpVariable %8 Output 106 %10 = OpTypeInt 32 1 107 %11 = OpTypeInt 32 0 108 %12 = OpConstant %11 2 109 %13 = OpTypeArray %10 %12 110 %14 = OpTypeStruct %13 111 %15 = OpTypePointer Uniform %14 112 %16 = OpVariable %15 Uniform 113 %17 = OpConstant %10 0 114 %18 = OpTypePointer Uniform %10 115 %22 = OpConstant %10 1 116 %33 = OpTypePointer Function %6 117 %35 = OpTypeArray %6 %12 118 %36 = OpTypeStruct %35 119 %37 = OpTypePointer Uniform %36 120 %38 = OpVariable %37 Uniform 121 %39 = OpTypePointer Uniform %6 122 %43 = OpConstant %6 0x1.8p+128 123 %48 = OpTypeBool 124 %54 = OpConstant %11 1 125 %55 = OpTypePointer Output %6 126 %4 = OpFunction %2 None %3 127 %5 = OpLabel 128 %34 = OpVariable %33 Function 129 %19 = OpAccessChain %18 %16 %17 %17 130 %20 = OpLoad %10 %19 131 %21 = OpConvertSToF %6 %20 132 %23 = OpAccessChain %18 %16 %17 %22 133 %24 = OpLoad %10 %23 134 %25 = OpConvertSToF %6 %24 135 %26 = OpAccessChain %18 %16 %17 %22 136 %27 = OpLoad %10 %26 137 %28 = OpConvertSToF %6 %27 138 %29 = OpAccessChain %18 %16 %17 %17 139 %30 = OpLoad %10 %29 140 %31 = OpConvertSToF %6 %30 141 %32 = OpCompositeConstruct %7 %21 %25 %28 %31 142 OpStore %9 %32 143 %40 = OpAccessChain %39 %38 %17 %22 144 %41 = OpLoad %6 %40 145 %42 = OpExtInst %6 %1 Atanh %41 146 %44 = OpFSub %6 %42 %43 147 OpStore %34 %44 148 %45 = OpLoad %6 %34 149 %46 = OpAccessChain %39 %38 %17 %17 150 %47 = OpLoad %6 %46 151 %49 = OpFOrdNotEqual %48 %45 %47 152 OpSelectionMerge %51 None 153 OpBranchConditional %49 %50 %51 154 %50 = OpLabel 155 %52 = OpAccessChain %39 %38 %17 %17 156 %53 = OpLoad %6 %52 157 %56 = OpAccessChain %55 %9 %54 158 OpStore %56 %53 159 OpBranch %51 160 %51 = OpLabel 161 OpReturn 162 OpFunctionEnd 163END 164 165# uniforms for variant 166 167# _GLF_uniform_float_values 168BUFFER variant__GLF_uniform_float_values DATA_TYPE float[] STD140 DATA 169 0.0 1.0 170END 171# _GLF_uniform_int_values 172BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA 173 1 0 174END 175 176BUFFER variant_framebuffer FORMAT B8G8R8A8_UNORM 177 178PIPELINE graphics variant_pipeline 179 ATTACH variant_vertex_shader 180 ATTACH variant_fragment_shader 181 FRAMEBUFFER_SIZE 256 256 182 BIND BUFFER variant_framebuffer AS color LOCATION 0 183 BIND BUFFER variant__GLF_uniform_float_values AS uniform DESCRIPTOR_SET 0 BINDING 1 184 BIND BUFFER variant__GLF_uniform_int_values AS uniform DESCRIPTOR_SET 0 BINDING 0 185END 186CLEAR_COLOR variant_pipeline 0 0 0 255 187 188CLEAR variant_pipeline 189RUN variant_pipeline DRAW_RECT POS 0 0 SIZE 256 256 190 191EXPECT variant_framebuffer IDX 0 0 SIZE 256 256 EQ_RGBA 255 0 0 255 192