| #!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: Fragment shader using (int, mat2) struct |
| |
| # The test passes because the struct instance is created and used in a way that guarantees writing red to the output buffer |
| |
| # Optimized using spirv-opt with the following arguments: |
| # '--eliminate-local-single-block' |
| # '--eliminate-dead-branches' |
| # '--vector-dce' |
| # '--simplify-instructions' |
| # '--reduce-load-size' |
| # '--eliminate-local-multi-store' |
| # '--private-to-local' |
| # '--eliminate-dead-branches' |
| # '--eliminate-dead-branches' |
| # '--merge-return' |
| # '--ccp' |
| # '--reduce-load-size' |
| # '--eliminate-local-single-block' |
| # '--scalar-replacement=100' |
| # '--combine-access-chains' |
| # '--if-conversion' |
| # '--ccp' |
| # '--eliminate-dead-branches' |
| # '--vector-dce' |
| # '--eliminate-dead-branches' |
| # '--merge-return' |
| # '--eliminate-local-single-block' |
| # '--inline-entry-points-exhaustive' |
| # '--eliminate-dead-inserts' |
| # '--eliminate-local-multi-store' |
| # '--convert-local-access-chains' |
| # '--eliminate-dead-branches' |
| # '--vector-dce' |
| # '--eliminate-dead-inserts' |
| # '--private-to-local' |
| # '--eliminate-local-multi-store' |
| # 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 f1; |
| # mat2 f2; |
| # } ; |
| # |
| # layout(location = 0) out vec4 _GLF_color; |
| # |
| # void main() |
| # { |
| # S myS = S(1, transpose(gl_FragCoord.x < 0.0 ? mat2(1.0, 2.0, 3.0, 4.0) : mat2(0.5, -0.5, -0.5, 0.5))); |
| # _GLF_color = vec4(float(myS.f1), myS.f2[0][0] + myS.f2[1][0], myS.f2[0][1] + myS.f2[1][1], float(myS.f1)); |
| # } |
| SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 |
| ; SPIR-V |
| ; Version: 1.0 |
| ; Generator: Khronos Glslang Reference Front End; 8 |
| ; Bound: 81 |
| ; Schema: 0 |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %16 %46 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 310 |
| OpName %4 "main" |
| OpName %10 "S" |
| OpMemberName %10 0 "f1" |
| OpMemberName %10 1 "f2" |
| OpName %16 "gl_FragCoord" |
| OpName %46 "_GLF_color" |
| OpMemberDecorate %10 0 RelaxedPrecision |
| OpDecorate %16 BuiltIn FragCoord |
| OpDecorate %46 Location 0 |
| OpDecorate %69 RelaxedPrecision |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeInt 32 1 |
| %7 = OpTypeFloat 32 |
| %8 = OpTypeVector %7 2 |
| %9 = OpTypeMatrix %8 2 |
| %10 = OpTypeStruct %6 %9 |
| %11 = OpTypePointer Function %10 |
| %13 = OpConstant %6 1 |
| %14 = OpTypeVector %7 4 |
| %15 = OpTypePointer Input %14 |
| %16 = OpVariable %15 Input |
| %17 = OpTypeInt 32 0 |
| %18 = OpConstant %17 0 |
| %19 = OpTypePointer Input %7 |
| %22 = OpConstant %7 0 |
| %23 = OpTypeBool |
| %25 = OpTypePointer Function %9 |
| %29 = OpConstant %7 1 |
| %30 = OpConstant %7 2 |
| %31 = OpConstantComposite %8 %29 %30 |
| %32 = OpConstant %7 3 |
| %33 = OpConstant %7 4 |
| %34 = OpConstantComposite %8 %32 %33 |
| %35 = OpConstantComposite %9 %31 %34 |
| %37 = OpConstant %7 0.5 |
| %38 = OpConstant %7 -0.5 |
| %39 = OpConstantComposite %8 %37 %38 |
| %40 = OpConstantComposite %8 %38 %37 |
| %41 = OpConstantComposite %9 %39 %40 |
| %45 = OpTypePointer Output %14 |
| %46 = OpVariable %45 Output |
| %47 = OpConstant %6 0 |
| %48 = OpTypePointer Function %6 |
| %52 = OpTypePointer Function %7 |
| %58 = OpConstant %17 1 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %70 = OpVariable %25 Function |
| %69 = OpVariable %48 Function |
| %26 = OpVariable %25 Function |
| %20 = OpAccessChain %19 %16 %18 |
| %21 = OpLoad %7 %20 |
| %24 = OpFOrdLessThan %23 %21 %22 |
| OpSelectionMerge %28 None |
| OpBranchConditional %24 %27 %36 |
| %27 = OpLabel |
| OpStore %26 %35 |
| OpBranch %28 |
| %36 = OpLabel |
| OpStore %26 %41 |
| OpBranch %28 |
| %28 = OpLabel |
| %68 = OpPhi %9 %35 %27 %41 %36 |
| %43 = OpTranspose %9 %68 |
| %44 = OpCompositeConstruct %10 %13 %43 |
| %71 = OpCompositeExtract %6 %44 0 |
| OpStore %69 %71 |
| %72 = OpCompositeExtract %9 %44 1 |
| OpStore %70 %72 |
| %51 = OpConvertSToF %7 %71 |
| %73 = OpAccessChain %52 %70 %47 %18 |
| %77 = OpLoad %9 %70 |
| %54 = OpCompositeExtract %7 %77 0 0 |
| %74 = OpAccessChain %52 %70 %13 %18 |
| %78 = OpLoad %9 %70 |
| %56 = OpCompositeExtract %7 %78 1 0 |
| %57 = OpFAdd %7 %54 %56 |
| %75 = OpAccessChain %52 %70 %47 %58 |
| %79 = OpLoad %9 %70 |
| %60 = OpCompositeExtract %7 %79 0 1 |
| %76 = OpAccessChain %52 %70 %13 %58 |
| %80 = OpLoad %9 %70 |
| %62 = OpCompositeExtract %7 %80 1 1 |
| %63 = OpFAdd %7 %60 %62 |
| %66 = OpConvertSToF %7 %71 |
| %67 = OpCompositeConstruct %14 %51 %57 %63 %66 |
| OpStore %46 %67 |
| OpReturn |
| OpFunctionEnd |
| 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 |
| 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 |