| #!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: |
| # '--copy-propagate-arrays' |
| # '--eliminate-dead-inserts' |
| # '--convert-local-access-chains' |
| # '--private-to-local' |
| # '--redundancy-elimination' |
| # '--eliminate-local-multi-store' |
| # '--eliminate-local-single-block' |
| # '--eliminate-dead-code-aggressive' |
| # '--copy-propagate-arrays' |
| # '--eliminate-dead-inserts' |
| # '--redundancy-elimination' |
| # '--eliminate-local-single-block' |
| # '--eliminate-local-single-store' |
| # '--eliminate-local-single-store' |
| # '--eliminate-dead-code-aggressive' |
| # '--inline-entry-points-exhaustive' |
| # '--combine-access-chains' |
| # '--eliminate-dead-branches' |
| # '--merge-return' |
| # '--eliminate-local-single-block' |
| # '--eliminate-dead-branches' |
| # '--reduce-load-size' |
| # '--eliminate-dead-inserts' |
| # '--copy-propagate-arrays' |
| # '--convert-local-access-chains' |
| # '--vector-dce' |
| # '--redundancy-elimination' |
| # '--eliminate-local-multi-store' |
| # '--redundancy-elimination' |
| # '--eliminate-dead-inserts' |
| # '--eliminate-dead-code-aggressive' |
| # spirv-opt commit hash: a0370efd589be33d5d9a85cfde2f85841b3755af |
| |
| |
| |
| SHADER vertex texgen_vert PASSTHROUGH |
| |
| SHADER fragment texgen_frag GLSL |
| #version 430 |
| precision highp float; |
| |
| layout(location = 0) out vec4 _GLF_color; |
| |
| void main() |
| { |
| _GLF_color = vec4( |
| floor(gl_FragCoord.x) * (1.0 / 255.0), |
| (int(gl_FragCoord.x) ^ int(gl_FragCoord.y)) * (1.0 / 255.0), |
| floor(gl_FragCoord.y) * (1.0 / 255.0), |
| 1.0); |
| } |
| END |
| BUFFER default_texture FORMAT B8G8R8A8_UNORM |
| |
| PIPELINE graphics texgen_pipeline |
| ATTACH texgen_vert |
| ATTACH texgen_frag |
| FRAMEBUFFER_SIZE 256 256 |
| BIND BUFFER default_texture AS color LOCATION 0 |
| END |
| |
| CLEAR_COLOR texgen_pipeline 0 0 0 255 |
| CLEAR texgen_pipeline |
| RUN texgen_pipeline DRAW_RECT POS 0 0 SIZE 256 256 |
| |
| SHADER vertex variant_vertex_shader PASSTHROUGH |
| |
| # variant_fragment_shader is derived from the following GLSL: |
| # #version 320 es |
| # |
| # precision highp float; |
| # precision highp int; |
| # |
| # const int _GLF_global_loop_bound = 10; |
| # int _GLF_global_loop_count = 0; |
| # |
| # struct S |
| # { |
| # int data; |
| # }; |
| # |
| # layout(set = 0, binding = 0) uniform sampler2D tex; |
| # |
| # layout(location = 0) out vec4 _GLF_color; |
| # |
| # void main() |
| # { |
| # int a = 1; |
| # int b = 1; |
| # vec4 v = vec4(1.0); |
| # S s = S(1); |
| # |
| # // Iterated once. |
| # while(v.x + 1.0 > 0.0 && s.data <= 1 && _GLF_global_loop_count < _GLF_global_loop_bound) |
| # { |
| # _GLF_global_loop_count++; |
| # |
| # // Always false. |
| # if(b++ > 3) |
| # { |
| # break; |
| # } |
| # |
| # // The sampled value doesn't matter because the loop will exit in any case. |
| # v = texture(tex, vec2(1.0)); |
| # |
| # // This will cause the loop to exit. |
| # s.data++; |
| # } |
| # |
| # // Always true. |
| # if (s.data == 2) |
| # _GLF_color = vec4(float(a), 0, 0, 1); |
| # else |
| # _GLF_color = vec4(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: 96 |
| ; Schema: 0 |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %75 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 320 |
| OpName %4 "main" |
| OpName %20 "S" |
| OpMemberName %20 0 "data" |
| OpName %60 "tex" |
| OpName %75 "_GLF_color" |
| OpDecorate %60 RelaxedPrecision |
| OpDecorate %60 DescriptorSet 0 |
| OpDecorate %60 Binding 0 |
| OpDecorate %61 RelaxedPrecision |
| OpDecorate %64 RelaxedPrecision |
| OpDecorate %75 Location 0 |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeInt 32 1 |
| %9 = OpConstant %6 0 |
| %12 = OpConstant %6 1 |
| %14 = OpTypeFloat 32 |
| %15 = OpTypeVector %14 4 |
| %18 = OpConstant %14 1 |
| %19 = OpConstantComposite %15 %18 %18 %18 %18 |
| %20 = OpTypeStruct %6 |
| %23 = OpConstantComposite %20 %12 |
| %29 = OpTypeBool |
| %36 = OpConstant %14 0 |
| %45 = OpConstant %6 10 |
| %52 = OpConstant %6 3 |
| %57 = OpTypeImage %14 2D 0 0 0 1 Unknown |
| %58 = OpTypeSampledImage %57 |
| %59 = OpTypePointer UniformConstant %58 |
| %60 = OpVariable %59 UniformConstant |
| %62 = OpTypeVector %14 2 |
| %63 = OpConstantComposite %62 %18 %18 |
| %70 = OpConstant %6 2 |
| %74 = OpTypePointer Output %15 |
| %75 = OpVariable %74 Output |
| %80 = OpConstantComposite %15 %36 %36 %36 %36 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| OpBranch %24 |
| %24 = OpLabel |
| %95 = OpPhi %20 %23 %5 %85 %27 |
| %94 = OpPhi %15 %19 %5 %64 %27 |
| %90 = OpPhi %6 %12 %5 %51 %27 |
| %88 = OpPhi %6 %9 %5 %49 %27 |
| %93 = OpPhi %6 %12 %5 %93 %27 |
| OpLoopMerge %26 %27 None |
| OpBranch %28 |
| %28 = OpLabel |
| %34 = OpCompositeExtract %14 %94 0 |
| %35 = OpFAdd %14 %34 %18 |
| %37 = OpFOrdGreaterThan %29 %35 %36 |
| OpSelectionMerge %39 None |
| OpBranchConditional %37 %38 %39 |
| %38 = OpLabel |
| %41 = OpCompositeExtract %6 %95 0 |
| %42 = OpSLessThanEqual %29 %41 %12 |
| OpBranch %39 |
| %39 = OpLabel |
| %43 = OpPhi %29 %37 %28 %42 %38 |
| %46 = OpSLessThan %29 %88 %45 |
| %47 = OpLogicalAnd %29 %43 %46 |
| OpBranchConditional %47 %25 %26 |
| %25 = OpLabel |
| %49 = OpIAdd %6 %88 %12 |
| %51 = OpIAdd %6 %90 %12 |
| %53 = OpSGreaterThan %29 %90 %52 |
| OpSelectionMerge %55 None |
| OpBranchConditional %53 %54 %55 |
| %54 = OpLabel |
| OpBranch %26 |
| %55 = OpLabel |
| %61 = OpLoad %58 %60 |
| %64 = OpImageSampleImplicitLod %15 %61 %63 |
| %66 = OpCompositeExtract %6 %95 0 |
| %67 = OpIAdd %6 %66 %12 |
| %85 = OpCompositeInsert %20 %67 %95 0 |
| OpBranch %27 |
| %27 = OpLabel |
| OpBranch %24 |
| %26 = OpLabel |
| %69 = OpCompositeExtract %6 %95 0 |
| %71 = OpIEqual %29 %69 %70 |
| OpSelectionMerge %73 None |
| OpBranchConditional %71 %72 %79 |
| %72 = OpLabel |
| %77 = OpConvertSToF %14 %93 |
| %78 = OpCompositeConstruct %15 %77 %36 %36 %18 |
| OpStore %75 %78 |
| OpBranch %73 |
| %79 = OpLabel |
| OpStore %75 %80 |
| OpBranch %73 |
| %73 = OpLabel |
| OpReturn |
| OpFunctionEnd |
| END |
| |
| # uniforms for variant |
| |
| # GLF_live1tex |
| SAMPLER variant_GLF_live1tex |
| |
| |
| 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 default_texture AS combined_image_sampler SAMPLER variant_GLF_live1tex 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 |