| #!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 LLVM code paths |
| |
| # The test passes because the shader always writes red. |
| |
| # Optimized using spirv-opt with the following arguments: |
| # '-O' |
| # spirv-opt commit hash: a0370efd589be33d5d9a85cfde2f85841b3755af |
| |
| |
| |
| SHADER vertex variant_vertex_shader PASSTHROUGH |
| |
| # variant_fragment_shader is derived from the following GLSL: |
| # #version 320 es |
| # #define _int_10 _GLF_uniform_int_values[0] |
| # #define _int_0 _GLF_uniform_int_values[1] |
| # #define _float_1_0 _GLF_uniform_float_values[0] |
| # |
| # precision highp float; |
| # precision highp int; |
| # |
| # // Contents of _GLF_uniform_float_values: 1.0 |
| # layout(set = 0, binding = 0) uniform buf0 |
| # { |
| # float _GLF_uniform_float_values[1]; |
| # }; |
| # |
| # // Contents of _GLF_uniform_int_values: [10, 0] |
| # layout(set = 0, binding = 1) uniform buf1 |
| # { |
| # int _GLF_uniform_int_values[2]; |
| # }; |
| # |
| # // Contents of one: 1.0 |
| # layout(set = 0, binding = 2) uniform buf2 |
| # { |
| # float one; |
| # }; |
| # |
| # layout(location = 0) out vec4 _GLF_color; |
| # |
| # void main() |
| # { |
| # // Always false. |
| # if(one > _float_1_0) |
| # { |
| # return; |
| # } |
| # |
| # // Always false. |
| # if(gl_FragCoord.x < 0.0) |
| # { |
| # if(gl_FragCoord.x < 0.0) |
| # { |
| # return; |
| # } |
| # for(int i = _int_0; i < _int_10; i ++) |
| # { |
| # if(gl_FragCoord.x < _float_1_0) |
| # { |
| # return; |
| # } |
| # } |
| # } |
| # |
| # _GLF_color = vec4(1, 0, 0, 1); |
| # } |
| SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 |
| ; SPIR-V |
| ; Version: 1.0 |
| ; Generator: Khronos Glslang Reference Front End; 10 |
| ; Bound: 89 |
| ; Schema: 0 |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %30 %76 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 320 |
| OpName %4 "main" |
| OpName %7 "buf2" |
| OpMemberName %7 0 "one" |
| OpName %9 "" |
| OpName %18 "buf0" |
| OpMemberName %18 0 "_GLF_uniform_float_values" |
| OpName %20 "" |
| OpName %30 "gl_FragCoord" |
| OpName %49 "buf1" |
| OpMemberName %49 0 "_GLF_uniform_int_values" |
| OpName %51 "" |
| OpName %76 "_GLF_color" |
| OpMemberDecorate %7 0 Offset 0 |
| OpDecorate %7 Block |
| OpDecorate %9 DescriptorSet 0 |
| OpDecorate %9 Binding 2 |
| OpDecorate %17 ArrayStride 16 |
| OpMemberDecorate %18 0 Offset 0 |
| OpDecorate %18 Block |
| OpDecorate %20 DescriptorSet 0 |
| OpDecorate %20 Binding 0 |
| OpDecorate %30 BuiltIn FragCoord |
| OpDecorate %48 ArrayStride 16 |
| OpMemberDecorate %49 0 Offset 0 |
| OpDecorate %49 Block |
| OpDecorate %51 DescriptorSet 0 |
| OpDecorate %51 Binding 1 |
| OpDecorate %76 Location 0 |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeFloat 32 |
| %7 = OpTypeStruct %6 |
| %8 = OpTypePointer Uniform %7 |
| %9 = OpVariable %8 Uniform |
| %10 = OpTypeInt 32 1 |
| %11 = OpConstant %10 0 |
| %12 = OpTypePointer Uniform %6 |
| %15 = OpTypeInt 32 0 |
| %16 = OpConstant %15 1 |
| %17 = OpTypeArray %6 %16 |
| %18 = OpTypeStruct %17 |
| %19 = OpTypePointer Uniform %18 |
| %20 = OpVariable %19 Uniform |
| %23 = OpTypeBool |
| %28 = OpTypeVector %6 4 |
| %29 = OpTypePointer Input %28 |
| %30 = OpVariable %29 Input |
| %31 = OpConstant %15 0 |
| %32 = OpTypePointer Input %6 |
| %35 = OpConstant %6 0 |
| %47 = OpConstant %15 2 |
| %48 = OpTypeArray %10 %47 |
| %49 = OpTypeStruct %48 |
| %50 = OpTypePointer Uniform %49 |
| %51 = OpVariable %50 Uniform |
| %52 = OpConstant %10 1 |
| %53 = OpTypePointer Uniform %10 |
| %75 = OpTypePointer Output %28 |
| %76 = OpVariable %75 Output |
| %77 = OpConstant %6 1 |
| %78 = OpConstantComposite %28 %77 %35 %35 %77 |
| %81 = OpConstantFalse %23 |
| %84 = OpConstantTrue %23 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| OpSelectionMerge %79 None |
| OpSwitch %31 %80 |
| %80 = OpLabel |
| %13 = OpAccessChain %12 %9 %11 |
| %14 = OpLoad %6 %13 |
| %21 = OpAccessChain %12 %20 %11 %11 |
| %22 = OpLoad %6 %21 |
| %24 = OpFOrdGreaterThan %23 %14 %22 |
| OpSelectionMerge %26 None |
| OpBranchConditional %24 %25 %26 |
| %25 = OpLabel |
| OpBranch %79 |
| %26 = OpLabel |
| %33 = OpAccessChain %32 %30 %31 |
| %34 = OpLoad %6 %33 |
| %36 = OpFOrdLessThan %23 %34 %35 |
| OpSelectionMerge %38 None |
| OpBranchConditional %36 %37 %38 |
| %37 = OpLabel |
| OpSelectionMerge %43 None |
| OpBranchConditional %36 %42 %43 |
| %42 = OpLabel |
| OpBranch %79 |
| %43 = OpLabel |
| %54 = OpAccessChain %53 %51 %11 %52 |
| %55 = OpLoad %10 %54 |
| OpBranch %56 |
| %56 = OpLabel |
| %87 = OpPhi %10 %55 %43 %74 %59 |
| %62 = OpAccessChain %53 %51 %11 %11 |
| %63 = OpLoad %10 %62 |
| %64 = OpSLessThan %23 %87 %63 |
| OpLoopMerge %58 %59 None |
| OpBranchConditional %64 %57 %58 |
| %57 = OpLabel |
| %69 = OpFOrdLessThan %23 %34 %22 |
| OpSelectionMerge %71 None |
| OpBranchConditional %69 %70 %71 |
| %70 = OpLabel |
| OpBranch %58 |
| %71 = OpLabel |
| OpBranch %59 |
| %59 = OpLabel |
| %74 = OpIAdd %10 %87 %52 |
| OpBranch %56 |
| %58 = OpLabel |
| %88 = OpPhi %23 %81 %56 %84 %70 |
| OpSelectionMerge %85 None |
| OpBranchConditional %88 %79 %85 |
| %85 = OpLabel |
| OpBranch %38 |
| %38 = OpLabel |
| OpStore %76 %78 |
| OpBranch %79 |
| %79 = OpLabel |
| OpReturn |
| OpFunctionEnd |
| END |
| |
| # uniforms for variant |
| |
| # one |
| BUFFER variant_one DATA_TYPE float STD140 DATA |
| 1.0 |
| END |
| # _GLF_uniform_int_values |
| BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA |
| 10 0 |
| END |
| # _GLF_uniform_float_values |
| BUFFER variant__GLF_uniform_float_values DATA_TYPE float[] STD140 DATA |
| 1.0 |
| 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_one AS uniform DESCRIPTOR_SET 0 BINDING 2 |
| 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 |