| #!amber |
| |
| # Copyright 2019 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 bug found by GraphicsFuzz. |
| |
| # Short description: Shader with loop controlled by struct |
| |
| # The test passes because 'sums[0]' ends up being 0, so that the colour that is written is guaranteed to be red |
| |
| # Optimized using spirv-opt with the following arguments: |
| # '--private-to-local' |
| # '--eliminate-dead-branches' |
| # '--merge-return' |
| # '--reduce-load-size' |
| # '--eliminate-dead-code-aggressive' |
| # '--ccp' |
| # '--eliminate-dead-code-aggressive' |
| # '--if-conversion' |
| # '--convert-local-access-chains' |
| # '--eliminate-dead-branches' |
| # '--merge-return' |
| # '--eliminate-local-single-store' |
| # '--ccp' |
| # '--eliminate-dead-branches' |
| # '--merge-return' |
| # '--eliminate-local-single-store' |
| # '--eliminate-dead-inserts' |
| # '--eliminate-local-multi-store' |
| # '--copy-propagate-arrays' |
| # '--combine-access-chains' |
| # '--redundancy-elimination' |
| # '--if-conversion' |
| # '--eliminate-local-multi-store' |
| # '--eliminate-dead-code-aggressive' |
| # spirv-opt commit hash: f1e5cd73f658abcc23ee96d78f2dc27c4b7028c1 |
| |
| |
| |
| SHADER vertex variant_vertex_shader PASSTHROUGH |
| |
| # variant_fragment_shader is derived from the following GLSL: |
| # #version 310 es |
| # precision highp float; |
| # |
| # struct S { |
| # int f0; |
| # bvec3 f1; |
| # } ; |
| # |
| # layout(set = 0, binding = 0) uniform buf0 { |
| # vec2 injectionSwitch; |
| # }; |
| # layout(location = 0) out vec4 _GLF_color; |
| # |
| # void main() |
| # { |
| # float sums[9]; |
| # for( |
| # S ll = S(0, bvec3(true)); |
| # ll.f0 != int((injectionSwitch.y)); |
| # ll.f0 ++ |
| # ) |
| # { |
| # sums[0] = 0.0; |
| # } |
| # int overall_region = 0; |
| # _GLF_color = vec4(1.0, vec2(sums[overall_region]), 1.0); |
| # } |
| SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 |
| ; SPIR-V |
| ; Version: 1.0 |
| ; Generator: Khronos Glslang Reference Front End; 8 |
| ; Bound: 63 |
| ; Schema: 0 |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %50 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 310 |
| OpName %4 "main" |
| OpName %9 "S" |
| OpMemberName %9 0 "f0" |
| OpMemberName %9 1 "f1" |
| OpName %11 "ll" |
| OpName %26 "buf0" |
| OpMemberName %26 0 "injectionSwitch" |
| OpName %28 "" |
| OpName %39 "sums" |
| OpName %50 "_GLF_color" |
| OpMemberDecorate %9 0 RelaxedPrecision |
| OpDecorate %23 RelaxedPrecision |
| OpMemberDecorate %26 0 Offset 0 |
| OpDecorate %26 Block |
| OpDecorate %28 DescriptorSet 0 |
| OpDecorate %28 Binding 0 |
| OpDecorate %44 RelaxedPrecision |
| OpDecorate %46 RelaxedPrecision |
| OpDecorate %50 Location 0 |
| OpDecorate %59 RelaxedPrecision |
| OpDecorate %60 RelaxedPrecision |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeInt 32 1 |
| %7 = OpTypeBool |
| %8 = OpTypeVector %7 3 |
| %9 = OpTypeStruct %6 %8 |
| %10 = OpTypePointer Function %9 |
| %12 = OpConstant %6 0 |
| %13 = OpConstantTrue %7 |
| %14 = OpConstantComposite %8 %13 %13 %13 |
| %15 = OpConstantComposite %9 %12 %14 |
| %24 = OpTypeFloat 32 |
| %25 = OpTypeVector %24 2 |
| %26 = OpTypeStruct %25 |
| %27 = OpTypePointer Uniform %26 |
| %28 = OpVariable %27 Uniform |
| %29 = OpTypeInt 32 0 |
| %30 = OpConstant %29 1 |
| %31 = OpTypePointer Uniform %24 |
| %36 = OpConstant %29 9 |
| %37 = OpTypeArray %24 %36 |
| %38 = OpTypePointer Function %37 |
| %40 = OpConstant %24 0 |
| %41 = OpTypePointer Function %24 |
| %45 = OpConstant %6 1 |
| %48 = OpTypeVector %24 4 |
| %49 = OpTypePointer Output %48 |
| %50 = OpVariable %49 Output |
| %51 = OpConstant %24 1 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %11 = OpVariable %10 Function |
| %39 = OpVariable %38 Function |
| OpStore %11 %15 |
| OpBranch %16 |
| %16 = OpLabel |
| OpLoopMerge %18 %19 None |
| OpBranch %20 |
| %20 = OpLabel |
| %59 = OpLoad %9 %11 |
| %23 = OpCompositeExtract %6 %59 0 |
| %32 = OpAccessChain %31 %28 %12 %30 |
| %33 = OpLoad %24 %32 |
| %34 = OpConvertFToS %6 %33 |
| %35 = OpINotEqual %7 %23 %34 |
| OpBranchConditional %35 %17 %18 |
| %17 = OpLabel |
| %42 = OpAccessChain %41 %39 %12 |
| OpStore %42 %40 |
| OpBranch %19 |
| %19 = OpLabel |
| %60 = OpLoad %9 %11 |
| %44 = OpCompositeExtract %6 %60 0 |
| %46 = OpIAdd %6 %44 %45 |
| %61 = OpLoad %9 %11 |
| %62 = OpCompositeInsert %9 %46 %61 0 |
| OpStore %11 %62 |
| OpBranch %16 |
| %18 = OpLabel |
| %53 = OpAccessChain %41 %39 %12 |
| %54 = OpLoad %24 %53 |
| %55 = OpCompositeConstruct %25 %54 %54 |
| %56 = OpCompositeExtract %24 %55 0 |
| %57 = OpCompositeExtract %24 %55 1 |
| %58 = OpCompositeConstruct %48 %51 %56 %57 %51 |
| OpStore %50 %58 |
| OpReturn |
| OpFunctionEnd |
| END |
| |
| # uniforms for variant |
| |
| # injectionSwitch |
| BUFFER variant_injectionSwitch DATA_TYPE vec2<float> DATA |
| 0.0 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_injectionSwitch 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 |