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 GraphicsFuzz. 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# precision highp float; 29# 30# layout(location = 0) out vec4 _GLF_color; 31# layout(set = 0, binding = 0) uniform buf0 32# { 33# int one; 34# }; 35# 36# void main() 37# { 38# if (sign(cosh(709.)) == 1. || one == 1) 39# { 40# _GLF_color = vec4(1, 0, 0, 1); 41# } 42# else 43# { 44# _GLF_color = vec4(1); 45# } 46# } 47SHADER fragment variant_fragment_shader SPIRV-ASM 48; SPIR-V 49; Version: 1.0 50; Generator: Khronos Glslang Reference Front End; 8 51; Bound: 36 52; Schema: 0 53 OpCapability Shader 54 %1 = OpExtInstImport "GLSL.std.450" 55 OpMemoryModel Logical GLSL450 56 OpEntryPoint Fragment %4 "main" %31 57 OpExecutionMode %4 OriginUpperLeft 58 OpSource ESSL 310 59 OpName %4 "main" 60 OpName %17 "buf0" 61 OpMemberName %17 0 "one" 62 OpName %19 "" 63 OpName %31 "_GLF_color" 64 OpMemberDecorate %17 0 RelaxedPrecision 65 OpMemberDecorate %17 0 Offset 0 66 OpDecorate %17 Block 67 OpDecorate %19 DescriptorSet 0 68 OpDecorate %19 Binding 0 69 OpDecorate %23 RelaxedPrecision 70 OpDecorate %31 Location 0 71 %2 = OpTypeVoid 72 %3 = OpTypeFunction %2 73 %6 = OpTypeBool 74 %7 = OpTypeFloat 32 75 %8 = OpConstant %7 709 76 %11 = OpConstant %7 1 77 %16 = OpTypeInt 32 1 78 %17 = OpTypeStruct %16 79 %18 = OpTypePointer Uniform %17 80 %19 = OpVariable %18 Uniform 81 %20 = OpConstant %16 0 82 %21 = OpTypePointer Uniform %16 83 %24 = OpConstant %16 1 84 %29 = OpTypeVector %7 4 85 %30 = OpTypePointer Output %29 86 %31 = OpVariable %30 Output 87 %32 = OpConstant %7 0 88 %33 = OpConstantComposite %29 %11 %32 %32 %11 89 %35 = OpConstantComposite %29 %11 %11 %11 %11 90 %4 = OpFunction %2 None %3 91 %5 = OpLabel 92 %9 = OpExtInst %7 %1 Cosh %8 93 %10 = OpExtInst %7 %1 FSign %9 94 %12 = OpFOrdEqual %6 %10 %11 95 %13 = OpLogicalNot %6 %12 96 OpSelectionMerge %15 None 97 OpBranchConditional %13 %14 %15 98 %14 = OpLabel 99 %22 = OpAccessChain %21 %19 %20 100 %23 = OpLoad %16 %22 101 %25 = OpIEqual %6 %23 %24 102 OpBranch %15 103 %15 = OpLabel 104 %26 = OpPhi %6 %12 %5 %25 %14 105 OpSelectionMerge %28 None 106 OpBranchConditional %26 %27 %34 107 %27 = OpLabel 108 OpStore %31 %33 109 OpBranch %28 110 %34 = OpLabel 111 OpStore %31 %35 112 OpBranch %28 113 %28 = OpLabel 114 OpReturn 115 OpFunctionEnd 116END 117 118# uniforms for variant 119 120# one 121BUFFER variant_one DATA_TYPE int32 DATA 122 1 123END 124 125BUFFER variant_framebuffer FORMAT B8G8R8A8_UNORM 126 127PIPELINE graphics variant_pipeline 128 ATTACH variant_vertex_shader 129 ATTACH variant_fragment_shader 130 FRAMEBUFFER_SIZE 256 256 131 BIND BUFFER variant_framebuffer AS color LOCATION 0 132 BIND BUFFER variant_one AS uniform DESCRIPTOR_SET 0 BINDING 0 133END 134CLEAR_COLOR variant_pipeline 0 0 0 255 135 136CLEAR variant_pipeline 137RUN variant_pipeline DRAW_RECT POS 0 0 SIZE 256 256 138 139EXPECT variant_framebuffer IDX 0 0 SIZE 256 256 EQ_RGBA 255 0 0 255 140