| #!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: A fragment shader with nested if |
| |
| # The test passes because main always writes color red. |
| # Running code after writing red does not matter. |
| |
| # Optimized using spirv-opt with the following arguments: |
| # '--copy-propagate-arrays' |
| # '--if-conversion' |
| # '--convert-local-access-chains' |
| # '--convert-local-access-chains' |
| # '--vector-dce' |
| # '--reduce-load-size' |
| # '--reduce-load-size' |
| # '--eliminate-dead-branches' |
| # '--merge-blocks' |
| # '--inline-entry-points-exhaustive' |
| # '--redundancy-elimination' |
| # '--private-to-local' |
| # '--eliminate-dead-code-aggressive' |
| # '--ccp' |
| # '--simplify-instructions' |
| # '--eliminate-dead-branches' |
| # '--inline-entry-points-exhaustive' |
| # '--eliminate-dead-inserts' |
| # '--eliminate-dead-branches' |
| # spirv-opt commit hash: 6b072126595dd8c2448eb1fda616251c5e6d7079 |
| |
| |
| |
| SHADER vertex variant_vertex_shader PASSTHROUGH |
| |
| # variant_fragment_shader is derived from the following GLSL: |
| # #version 310 es |
| # precision highp float; |
| # |
| # layout(location = 0) out vec4 _GLF_color; |
| # |
| # layout(set = 0, binding = 0) uniform buf0 |
| # { |
| # vec2 injectionSwitch; |
| # }; |
| # void main() |
| # { |
| # _GLF_color = vec4(1.0, 0.0, 0.0, 1.0); // Write color red |
| # |
| # do |
| # { |
| # if (injectionSwitch.y < 0.0) // Always false |
| # { |
| # bool GLF_live12c5 = false; |
| # if (GLF_live12c5) |
| # { |
| # } |
| # continue; |
| # } |
| # break; |
| # } while (false); |
| # } |
| SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0 |
| ; SPIR-V |
| ; Version: 1.0 |
| ; Generator: Khronos Glslang Reference Front End; 7 |
| ; Bound: 39 |
| ; Schema: 0 |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %9 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 310 |
| OpName %4 "main" |
| OpName %9 "_GLF_color" |
| OpName %18 "buf0" |
| OpMemberName %18 0 "injectionSwitch" |
| OpName %20 "" |
| OpName %33 "GLF_live12c5" |
| OpDecorate %9 Location 0 |
| OpMemberDecorate %18 0 Offset 0 |
| OpDecorate %18 Block |
| OpDecorate %20 DescriptorSet 0 |
| OpDecorate %20 Binding 0 |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeFloat 32 |
| %7 = OpTypeVector %6 4 |
| %8 = OpTypePointer Output %7 |
| %9 = OpVariable %8 Output |
| %10 = OpConstant %6 1 |
| %11 = OpConstant %6 0 |
| %12 = OpConstantComposite %7 %10 %11 %11 %10 |
| %17 = OpTypeVector %6 2 |
| %18 = OpTypeStruct %17 |
| %19 = OpTypePointer Uniform %18 |
| %20 = OpVariable %19 Uniform |
| %21 = OpTypeInt 32 1 |
| %22 = OpConstant %21 0 |
| %23 = OpTypeInt 32 0 |
| %24 = OpConstant %23 1 |
| %25 = OpTypePointer Uniform %6 |
| %28 = OpTypeBool |
| %32 = OpTypePointer Function %28 |
| %34 = OpConstantFalse %28 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %33 = OpVariable %32 Function |
| OpStore %9 %12 |
| OpBranch %13 |
| %13 = OpLabel |
| OpLoopMerge %15 %37 None |
| OpBranch %14 |
| %14 = OpLabel |
| %26 = OpAccessChain %25 %20 %22 %24 |
| %27 = OpLoad %6 %26 |
| %29 = OpFOrdLessThan %28 %27 %11 |
| OpSelectionMerge %31 None |
| OpBranchConditional %29 %30 %31 |
| %30 = OpLabel |
| OpStore %33 %34 |
| %35 = OpLoad %28 %33 |
| OpSelectionMerge %38 None |
| OpBranchConditional %35 %36 %37 |
| %36 = OpLabel |
| OpBranch %37 |
| %38 = OpLabel |
| OpBranch %37 |
| %37 = OpLabel |
| OpBranchConditional %34 %13 %15 |
| %31 = OpLabel |
| OpBranch %15 |
| %15 = OpLabel |
| 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 |