1#!amber 2 3# Copyright 2022 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 specific LLVM 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 320 es 28# #define _int_1 _GLF_uniform_int_values[0] 29# #define _int_0 _GLF_uniform_int_values[1] 30# 31# precision highp float; 32# precision highp int; 33# 34# // Contents of _GLF_uniform_int_values: [1, 0] 35# layout(set = 0, binding = 0) uniform buf0 36# { 37# int _GLF_uniform_int_values[2]; 38# }; 39# 40# layout(location = 0) out vec4 _GLF_color; 41# 42# vec4 func() 43# { 44# int a = _int_1; 45# min(a, a << 24323); 46# return vec4(_int_1, _int_0, _int_0, _int_1); 47# } 48# 49# void main() 50# { 51# _GLF_color = func(); 52# } 53SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 54; SPIR-V 55; Version: 1.0 56; Generator: Khronos Glslang Reference Front End; 10 57; Bound: 48 58; Schema: 0 59 OpCapability Shader 60 %1 = OpExtInstImport "GLSL.std.450" 61 OpMemoryModel Logical GLSL450 62 OpEntryPoint Fragment %4 "main" %46 63 OpExecutionMode %4 OriginUpperLeft 64 OpSource ESSL 320 65 OpName %4 "main" 66 OpName %9 "func(" 67 OpName %13 "a" 68 OpName %17 "buf0" 69 OpMemberName %17 0 "_GLF_uniform_int_values" 70 OpName %19 "" 71 OpName %46 "_GLF_color" 72 OpDecorate %16 ArrayStride 16 73 OpMemberDecorate %17 0 Offset 0 74 OpDecorate %17 Block 75 OpDecorate %19 DescriptorSet 0 76 OpDecorate %19 Binding 0 77 OpDecorate %46 Location 0 78 %2 = OpTypeVoid 79 %3 = OpTypeFunction %2 80 %6 = OpTypeFloat 32 81 %7 = OpTypeVector %6 4 82 %8 = OpTypeFunction %7 83 %11 = OpTypeInt 32 1 84 %12 = OpTypePointer Function %11 85 %14 = OpTypeInt 32 0 86 %15 = OpConstant %14 2 87 %16 = OpTypeArray %11 %15 88 %17 = OpTypeStruct %16 89 %18 = OpTypePointer Uniform %17 90 %19 = OpVariable %18 Uniform 91 %20 = OpConstant %11 0 92 %21 = OpTypePointer Uniform %11 93 %26 = OpConstant %11 24323 94 %32 = OpConstant %11 1 95 %45 = OpTypePointer Output %7 96 %46 = OpVariable %45 Output 97 %4 = OpFunction %2 None %3 98 %5 = OpLabel 99 %47 = OpFunctionCall %7 %9 100 OpStore %46 %47 101 OpReturn 102 OpFunctionEnd 103 %9 = OpFunction %7 None %8 104 %10 = OpLabel 105 %13 = OpVariable %12 Function 106 %22 = OpAccessChain %21 %19 %20 %20 107 %23 = OpLoad %11 %22 108 OpStore %13 %23 109 %24 = OpLoad %11 %13 110 %25 = OpLoad %11 %13 111 %27 = OpShiftLeftLogical %11 %25 %26 112 %28 = OpExtInst %11 %1 SMin %24 %27 113 %29 = OpAccessChain %21 %19 %20 %20 114 %30 = OpLoad %11 %29 115 %31 = OpConvertSToF %6 %30 116 %33 = OpAccessChain %21 %19 %20 %32 117 %34 = OpLoad %11 %33 118 %35 = OpConvertSToF %6 %34 119 %36 = OpAccessChain %21 %19 %20 %32 120 %37 = OpLoad %11 %36 121 %38 = OpConvertSToF %6 %37 122 %39 = OpAccessChain %21 %19 %20 %20 123 %40 = OpLoad %11 %39 124 %41 = OpConvertSToF %6 %40 125 %42 = OpCompositeConstruct %7 %31 %35 %38 %41 126 OpReturnValue %42 127 OpFunctionEnd 128END 129 130# uniforms for variant 131 132# _GLF_uniform_int_values 133BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA 134 1 0 135END 136 137BUFFER variant_framebuffer FORMAT B8G8R8A8_UNORM 138 139PIPELINE graphics variant_pipeline 140 ATTACH variant_vertex_shader 141 ATTACH variant_fragment_shader 142 FRAMEBUFFER_SIZE 32 32 143 BIND BUFFER variant_framebuffer AS color LOCATION 0 144 BIND BUFFER variant__GLF_uniform_int_values AS uniform DESCRIPTOR_SET 0 BINDING 0 145END 146CLEAR_COLOR variant_pipeline 0 0 0 255 147 148CLEAR variant_pipeline 149RUN variant_pipeline DRAW_RECT POS 0 0 SIZE 32 32 150 151EXPECT variant_framebuffer IDX 0 0 SIZE 32 32 EQ_RGBA 255 0 0 255 152