| #!amber |
| |
| # Copyright 2020 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 a specific floating point code path |
| |
| # 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 310 es |
| # #define _int_1 _GLF_uniform_int_values[0] |
| # #define _int_0 _GLF_uniform_int_values[1] |
| # #define _float_0_0 _GLF_uniform_float_values[0] |
| # |
| # precision highp float; |
| # |
| # // Contents of _GLF_uniform_float_values: 0.0 |
| # layout(set = 0, binding = 0) uniform buf0 |
| # { |
| # float _GLF_uniform_float_values[1]; |
| # }; |
| # |
| # // Contents of _GLF_uniform_int_values: [1, 0] |
| # layout(set = 0, binding = 1) uniform buf1 |
| # { |
| # int _GLF_uniform_int_values[3]; |
| # }; |
| # layout(location = 0) out vec4 _GLF_color; |
| # |
| # void main() |
| # { |
| # // This results in an undefined value, but not in undefined behavior. |
| # float undefined = mod(5.0, 0.0); |
| # if (_int_1 == (_int_1 + _int_0) || undefined > _float_0_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; 8 |
| ; Bound: 68 |
| ; Schema: 0 |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %49 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 310 |
| OpName %4 "main" |
| OpName %8 "undefined" |
| OpName %17 "buf1" |
| OpMemberName %17 0 "_GLF_uniform_int_values" |
| OpName %19 "" |
| OpName %37 "buf0" |
| OpMemberName %37 0 "_GLF_uniform_float_values" |
| OpName %39 "" |
| OpName %49 "_GLF_color" |
| OpDecorate %16 ArrayStride 16 |
| OpMemberDecorate %17 0 RelaxedPrecision |
| OpMemberDecorate %17 0 Offset 0 |
| OpDecorate %17 Block |
| OpDecorate %19 DescriptorSet 0 |
| OpDecorate %19 Binding 1 |
| OpDecorate %23 RelaxedPrecision |
| OpDecorate %25 RelaxedPrecision |
| OpDecorate %28 RelaxedPrecision |
| OpDecorate %29 RelaxedPrecision |
| OpDecorate %36 ArrayStride 16 |
| OpMemberDecorate %37 0 Offset 0 |
| OpDecorate %37 Block |
| OpDecorate %39 DescriptorSet 0 |
| OpDecorate %39 Binding 0 |
| OpDecorate %49 Location 0 |
| OpDecorate %51 RelaxedPrecision |
| OpDecorate %54 RelaxedPrecision |
| OpDecorate %57 RelaxedPrecision |
| OpDecorate %60 RelaxedPrecision |
| OpDecorate %65 RelaxedPrecision |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeFloat 32 |
| %7 = OpTypePointer Function %6 |
| %9 = OpConstant %6 5 |
| %10 = OpConstant %6 0 |
| %12 = OpTypeBool |
| %13 = OpTypeInt 32 1 |
| %14 = OpTypeInt 32 0 |
| %15 = OpConstant %14 3 |
| %16 = OpTypeArray %13 %15 |
| %17 = OpTypeStruct %16 |
| %18 = OpTypePointer Uniform %17 |
| %19 = OpVariable %18 Uniform |
| %20 = OpConstant %13 0 |
| %21 = OpTypePointer Uniform %13 |
| %26 = OpConstant %13 1 |
| %35 = OpConstant %14 1 |
| %36 = OpTypeArray %6 %35 |
| %37 = OpTypeStruct %36 |
| %38 = OpTypePointer Uniform %37 |
| %39 = OpVariable %38 Uniform |
| %40 = OpTypePointer Uniform %6 |
| %47 = OpTypeVector %6 4 |
| %48 = OpTypePointer Output %47 |
| %49 = OpVariable %48 Output |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %8 = OpVariable %7 Function |
| %11 = OpFMod %6 %9 %10 |
| OpStore %8 %11 |
| %22 = OpAccessChain %21 %19 %20 %20 |
| %23 = OpLoad %13 %22 |
| %24 = OpAccessChain %21 %19 %20 %20 |
| %25 = OpLoad %13 %24 |
| %27 = OpAccessChain %21 %19 %20 %26 |
| %28 = OpLoad %13 %27 |
| %29 = OpIAdd %13 %25 %28 |
| %30 = OpIEqual %12 %23 %29 |
| %31 = OpLogicalNot %12 %30 |
| OpSelectionMerge %33 None |
| OpBranchConditional %31 %32 %33 |
| %32 = OpLabel |
| %34 = OpLoad %6 %8 |
| %41 = OpAccessChain %40 %39 %20 %20 |
| %42 = OpLoad %6 %41 |
| %43 = OpFOrdGreaterThan %12 %34 %42 |
| OpBranch %33 |
| %33 = OpLabel |
| %44 = OpPhi %12 %30 %5 %43 %32 |
| OpSelectionMerge %46 None |
| OpBranchConditional %44 %45 %63 |
| %45 = OpLabel |
| %50 = OpAccessChain %21 %19 %20 %20 |
| %51 = OpLoad %13 %50 |
| %52 = OpConvertSToF %6 %51 |
| %53 = OpAccessChain %21 %19 %20 %26 |
| %54 = OpLoad %13 %53 |
| %55 = OpConvertSToF %6 %54 |
| %56 = OpAccessChain %21 %19 %20 %26 |
| %57 = OpLoad %13 %56 |
| %58 = OpConvertSToF %6 %57 |
| %59 = OpAccessChain %21 %19 %20 %20 |
| %60 = OpLoad %13 %59 |
| %61 = OpConvertSToF %6 %60 |
| %62 = OpCompositeConstruct %47 %52 %55 %58 %61 |
| OpStore %49 %62 |
| OpBranch %46 |
| %63 = OpLabel |
| %64 = OpAccessChain %21 %19 %20 %26 |
| %65 = OpLoad %13 %64 |
| %66 = OpConvertSToF %6 %65 |
| %67 = OpCompositeConstruct %47 %66 %66 %66 %66 |
| OpStore %49 %67 |
| OpBranch %46 |
| %46 = OpLabel |
| OpReturn |
| OpFunctionEnd |
| END |
| |
| # uniforms for variant |
| |
| # _GLF_uniform_int_values |
| BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA |
| 1 0 |
| END |
| # _GLF_uniform_float_values |
| BUFFER variant__GLF_uniform_float_values DATA_TYPE float[] STD140 DATA |
| 0.0 |
| 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 1 |
| BIND BUFFER variant__GLF_uniform_float_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 |