#!amber # Copyright 2021 Google LLC # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. # A test for a coverage-gap found by the GraphicsFuzz project. # Short description: A fragment shader that covers specific NIR code paths # The test passes because the shader always writes red. SHADER vertex variant_vertex_shader PASSTHROUGH # variant_fragment_shader is derived from the following GLSL: # #version 320 es # #define _int_0 _GLF_uniform_int_values[0] # #define _int_1 _GLF_uniform_int_values[1] # # precision highp int; # precision highp float; # # // Contents of _GLF_uniform_int_values: [0, 1] # layout(set = 0, binding = 0) uniform buf0 # { # int _GLF_uniform_int_values[2]; # }; # layout(location = 0) out vec4 _GLF_color; # # void main() # { # int a = -7563; # # // Always true. # if(_int_1 / a == _int_0) # { # _GLF_color = vec4(_int_1, _int_0, _int_0, _int_1); # } # else # { # _GLF_color = vec4(_int_0); # } # } SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 ; SPIR-V ; Version: 1.0 ; Generator: Khronos Glslang Reference Front End; 10 ; Bound: 51 ; Schema: 0 OpCapability Shader %1 = OpExtInstImport "GLSL.std.450" OpMemoryModel Logical GLSL450 OpEntryPoint Fragment %4 "main" %32 OpExecutionMode %4 OriginUpperLeft OpSource ESSL 320 OpName %4 "main" OpName %8 "a" OpName %13 "buf0" OpMemberName %13 0 "_GLF_uniform_int_values" OpName %15 "" OpName %32 "_GLF_color" OpDecorate %12 ArrayStride 16 OpMemberDecorate %13 0 Offset 0 OpDecorate %13 Block OpDecorate %15 DescriptorSet 0 OpDecorate %15 Binding 0 OpDecorate %32 Location 0 %2 = OpTypeVoid %3 = OpTypeFunction %2 %6 = OpTypeInt 32 1 %7 = OpTypePointer Function %6 %9 = OpConstant %6 -7563 %10 = OpTypeInt 32 0 %11 = OpConstant %10 2 %12 = OpTypeArray %6 %11 %13 = OpTypeStruct %12 %14 = OpTypePointer Uniform %13 %15 = OpVariable %14 Uniform %16 = OpConstant %6 0 %17 = OpConstant %6 1 %18 = OpTypePointer Uniform %6 %25 = OpTypeBool %29 = OpTypeFloat 32 %30 = OpTypeVector %29 4 %31 = OpTypePointer Output %30 %32 = OpVariable %31 Output %4 = OpFunction %2 None %3 %5 = OpLabel %8 = OpVariable %7 Function OpStore %8 %9 %19 = OpAccessChain %18 %15 %16 %17 %20 = OpLoad %6 %19 %21 = OpLoad %6 %8 %22 = OpSDiv %6 %20 %21 %23 = OpAccessChain %18 %15 %16 %16 %24 = OpLoad %6 %23 %26 = OpIEqual %25 %22 %24 OpSelectionMerge %28 None OpBranchConditional %26 %27 %46 %27 = OpLabel %33 = OpAccessChain %18 %15 %16 %17 %34 = OpLoad %6 %33 %35 = OpConvertSToF %29 %34 %36 = OpAccessChain %18 %15 %16 %16 %37 = OpLoad %6 %36 %38 = OpConvertSToF %29 %37 %39 = OpAccessChain %18 %15 %16 %16 %40 = OpLoad %6 %39 %41 = OpConvertSToF %29 %40 %42 = OpAccessChain %18 %15 %16 %17 %43 = OpLoad %6 %42 %44 = OpConvertSToF %29 %43 %45 = OpCompositeConstruct %30 %35 %38 %41 %44 OpStore %32 %45 OpBranch %28 %46 = OpLabel %47 = OpAccessChain %18 %15 %16 %16 %48 = OpLoad %6 %47 %49 = OpConvertSToF %29 %48 %50 = OpCompositeConstruct %30 %49 %49 %49 %49 OpStore %32 %50 OpBranch %28 %28 = OpLabel OpReturn OpFunctionEnd END # uniforms for variant # _GLF_uniform_int_values BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA 0 1 END BUFFER variant_framebuffer FORMAT B8G8R8A8_UNORM PIPELINE graphics variant_pipeline ATTACH variant_vertex_shader ATTACH variant_fragment_shader FRAMEBUFFER_SIZE 256 256 BIND BUFFER variant_framebuffer AS color LOCATION 0 BIND BUFFER variant__GLF_uniform_int_values AS uniform DESCRIPTOR_SET 0 BINDING 0 END CLEAR_COLOR variant_pipeline 0 0 0 255 CLEAR variant_pipeline RUN variant_pipeline DRAW_RECT POS 0 0 SIZE 256 256 EXPECT variant_framebuffer IDX 0 0 SIZE 256 256 EQ_RGBA 255 0 0 255