| #!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 bug found by the GraphicsFuzz project. |
| |
| # Short description: A fragment shader with true if in a nested do while loop |
| |
| # The test passes because the shader always writes color red. |
| |
| # Optimized using spirv-opt with the following arguments: |
| # '--simplify-instructions' |
| # '--private-to-local' |
| # '--eliminate-local-multi-store' |
| # '--convert-local-access-chains' |
| # '--inline-entry-points-exhaustive' |
| # '--simplify-instructions' |
| # '--eliminate-dead-inserts' |
| # '--vector-dce' |
| # '--combine-access-chains' |
| # '--convert-local-access-chains' |
| # '--if-conversion' |
| # '--private-to-local' |
| # '--eliminate-local-single-store' |
| # '--copy-propagate-arrays' |
| # spirv-opt commit hash: 230f363e6da32791f640b02205e0645cc67c3f1d |
| |
| |
| |
| SHADER vertex variant_vertex_shader PASSTHROUGH |
| |
| # variant_fragment_shader is derived from the following GLSL: |
| # #version 320 es |
| # precision highp float; |
| # |
| # precision highp int; |
| # |
| # layout(location = 0) out vec4 _GLF_color; |
| # layout(set = 0, binding = 0) uniform buf0 |
| # { |
| # vec2 injectionSwitch; // x == 0.0, y == 1.0 |
| # }; |
| # |
| # int func() |
| # { |
| # const int loop_limit = 100; |
| # int loop_count = 0; |
| # do |
| # { |
| # loop_count++; |
| # do |
| # { |
| # loop_count++; |
| # // Always true. |
| # if (injectionSwitch.x < injectionSwitch.y) |
| # { |
| # return 1; |
| # } |
| # // Always true. |
| # if (injectionSwitch.x < injectionSwitch.y) |
| # { |
| # break; |
| # } |
| # } while (loop_count < loop_limit); |
| # } while (loop_count < loop_limit); |
| # return 0; |
| # } |
| # void main() |
| # { |
| # if(func() == 1) |
| # { |
| # _GLF_color = vec4(1.0, 0.0, 0.0, 1.0); |
| # } |
| # else |
| # { |
| # _GLF_color = vec4(1.0); |
| # } |
| # } |
| SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 |
| ; SPIR-V |
| ; Version: 1.0 |
| ; Generator: Khronos Glslang Reference Front End; 10 |
| ; Bound: 73 |
| ; Schema: 0 |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %65 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 320 |
| OpName %4 "main" |
| OpName %8 "func(" |
| OpName %11 "loop_count" |
| OpName %28 "buf0" |
| OpMemberName %28 0 "injectionSwitch" |
| OpName %30 "" |
| OpName %65 "_GLF_color" |
| OpMemberDecorate %28 0 Offset 0 |
| OpDecorate %28 Block |
| OpDecorate %30 DescriptorSet 0 |
| OpDecorate %30 Binding 0 |
| OpDecorate %65 Location 0 |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeInt 32 1 |
| %7 = OpTypeFunction %6 |
| %10 = OpTypePointer Function %6 |
| %12 = OpConstant %6 0 |
| %18 = OpConstant %6 1 |
| %26 = OpTypeFloat 32 |
| %27 = OpTypeVector %26 2 |
| %28 = OpTypeStruct %27 |
| %29 = OpTypePointer Uniform %28 |
| %30 = OpVariable %29 Uniform |
| %31 = OpTypeInt 32 0 |
| %32 = OpConstant %31 0 |
| %33 = OpTypePointer Uniform %26 |
| %36 = OpConstant %31 1 |
| %39 = OpTypeBool |
| %53 = OpConstant %6 100 |
| %63 = OpTypeVector %26 4 |
| %64 = OpTypePointer Output %63 |
| %65 = OpVariable %64 Output |
| %66 = OpConstant %26 1 |
| %67 = OpConstant %26 0 |
| %68 = OpConstantComposite %63 %66 %67 %67 %66 |
| %70 = OpConstantComposite %63 %66 %66 %66 %66 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %59 = OpFunctionCall %6 %8 |
| %60 = OpIEqual %39 %59 %18 |
| OpSelectionMerge %62 None |
| OpBranchConditional %60 %61 %69 |
| %61 = OpLabel |
| OpStore %65 %68 |
| OpBranch %62 |
| %69 = OpLabel |
| OpStore %65 %70 |
| OpBranch %62 |
| %62 = OpLabel |
| OpReturn |
| OpFunctionEnd |
| %8 = OpFunction %6 None %7 |
| %9 = OpLabel |
| %11 = OpVariable %10 Function |
| OpStore %11 %12 |
| OpBranch %13 |
| %13 = OpLabel |
| %71 = OpPhi %6 %12 %9 %25 %16 |
| OpLoopMerge %15 %16 None |
| OpBranch %14 |
| %14 = OpLabel |
| %19 = OpIAdd %6 %71 %18 |
| OpStore %11 %19 |
| OpBranch %20 |
| %20 = OpLabel |
| %72 = OpPhi %6 %19 %14 %25 %23 |
| OpLoopMerge %22 %23 None |
| OpBranch %21 |
| %21 = OpLabel |
| %25 = OpIAdd %6 %72 %18 |
| OpStore %11 %25 |
| %34 = OpAccessChain %33 %30 %12 %32 |
| %35 = OpLoad %26 %34 |
| %37 = OpAccessChain %33 %30 %12 %36 |
| %38 = OpLoad %26 %37 |
| %40 = OpFOrdLessThan %39 %35 %38 |
| OpSelectionMerge %42 None |
| OpBranchConditional %40 %41 %42 |
| %41 = OpLabel |
| OpReturnValue %18 |
| %42 = OpLabel |
| %44 = OpAccessChain %33 %30 %12 %32 |
| %45 = OpLoad %26 %44 |
| %46 = OpAccessChain %33 %30 %12 %36 |
| %47 = OpLoad %26 %46 |
| %48 = OpFOrdLessThan %39 %45 %47 |
| OpSelectionMerge %50 None |
| OpBranchConditional %48 %49 %50 |
| %49 = OpLabel |
| OpBranch %22 |
| %50 = OpLabel |
| OpBranch %23 |
| %23 = OpLabel |
| %54 = OpSLessThan %39 %25 %53 |
| OpBranchConditional %54 %20 %22 |
| %22 = OpLabel |
| OpBranch %16 |
| %16 = OpLabel |
| %56 = OpSLessThan %39 %25 %53 |
| OpBranchConditional %56 %13 %15 |
| %15 = OpLabel |
| OpReturnValue %12 |
| OpFunctionEnd |
| END |
| |
| # uniforms for variant |
| |
| # injectionSwitch |
| BUFFER variant_injectionSwitch DATA_TYPE vec2<float> STD140 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 |