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 shader that accesses a new vector within an if condition 21 22# The test passes because the shader always writes the color 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# 32# void main() 33# { 34# int x = 0; 35# 36# if (vec4(1.0)[clamp(x, 0, 3)] >= 1.0) 37# { 38# } 39# 40# _GLF_color = vec4(1.0, 0.0, 0.0, 1.0); 41# } 42SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 43; SPIR-V 44; Version: 1.0 45; Generator: Khronos Glslang Reference Front End; 7 46; Bound: 26 47; Schema: 0 48 OpCapability Shader 49 %1 = OpExtInstImport "GLSL.std.450" 50 OpMemoryModel Logical GLSL450 51 OpEntryPoint Fragment %4 "main" %23 52 OpExecutionMode %4 OriginUpperLeft 53 OpSource ESSL 310 54 OpName %4 "main" 55 OpName %8 "x" 56 OpName %23 "_GLF_color" 57 OpDecorate %8 RelaxedPrecision 58 OpDecorate %14 RelaxedPrecision 59 OpDecorate %16 RelaxedPrecision 60 OpDecorate %23 Location 0 61 %2 = OpTypeVoid 62 %3 = OpTypeFunction %2 63 %6 = OpTypeInt 32 1 64 %7 = OpTypePointer Function %6 65 %9 = OpConstant %6 0 66 %10 = OpTypeFloat 32 67 %11 = OpTypeVector %10 4 68 %12 = OpConstant %10 1 69 %13 = OpConstantComposite %11 %12 %12 %12 %12 70 %15 = OpConstant %6 3 71 %18 = OpTypeBool 72 %22 = OpTypePointer Output %11 73 %23 = OpVariable %22 Output 74 %24 = OpConstant %10 0 75 %25 = OpConstantComposite %11 %12 %24 %24 %12 76 %4 = OpFunction %2 None %3 77 %5 = OpLabel 78 %8 = OpVariable %7 Function 79 OpStore %8 %9 80 %14 = OpLoad %6 %8 81 %16 = OpExtInst %6 %1 SClamp %14 %9 %15 82 %17 = OpVectorExtractDynamic %10 %13 %16 83 %19 = OpFOrdGreaterThanEqual %18 %17 %12 84 OpSelectionMerge %21 None 85 OpBranchConditional %19 %20 %21 86 %20 = OpLabel 87 OpBranch %21 88 %21 = OpLabel 89 OpStore %23 %25 90 OpReturn 91 OpFunctionEnd 92END 93 94# uniforms for variant 95 96 97BUFFER variant_framebuffer FORMAT B8G8R8A8_UNORM 98 99PIPELINE graphics variant_pipeline 100 ATTACH variant_vertex_shader 101 ATTACH variant_fragment_shader 102 FRAMEBUFFER_SIZE 256 256 103 BIND BUFFER variant_framebuffer AS color LOCATION 0 104END 105CLEAR_COLOR variant_pipeline 0 0 0 255 106 107CLEAR variant_pipeline 108RUN variant_pipeline DRAW_RECT POS 0 0 SIZE 256 256 109 110EXPECT variant_framebuffer IDX 0 0 SIZE 256 256 EQ_RGBA 255 0 0 255 111