| #!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: |
| # '-O' |
| # spirv-opt commit hash: a0370efd589be33d5d9a85cfde2f85841b3755af |
| |
| |
| |
| SHADER vertex variant_vertex_shader PASSTHROUGH |
| |
| # variant_fragment_shader is derived from the following GLSL: |
| # #version 320 es |
| # #define _int_1 _GLF_uniform_int_values[0] |
| # #define _int_0 _GLF_uniform_int_values[1] |
| # #define _int_5 _GLF_uniform_int_values[2] |
| # #define _int_3 _GLF_uniform_int_values[3] |
| # |
| # precision highp float; |
| # precision highp int; |
| # |
| # // Contents of _GLF_uniform_int_values: [1, 0, 5, 3] |
| # layout(set = 0, binding = 0) uniform buf0 |
| # { |
| # int _GLF_uniform_int_values[4]; |
| # }; |
| # |
| # const int _GLF_global_loop_bound = 10; |
| # int _GLF_global_loop_count = 0; |
| # |
| # // Contents of injectionSwitch: [0.0, 1.0] |
| # layout(set = 0, binding = 1) uniform buf1 |
| # { |
| # highp vec2 injectionSwitch; |
| # }; |
| # |
| # layout(location = 0) out vec4 _GLF_color; |
| # |
| # void main() |
| # { |
| # int a = _int_0; |
| # |
| # // Iterated three times. |
| # while(_GLF_global_loop_count < _GLF_global_loop_bound) |
| # { |
| # a++; |
| # |
| # // Iterated four times. |
| # for(int i = clamp(ivec2(1, int(injectionSwitch.y)), ivec2(0), ivec2(_int_1)).x; i < _int_5; i++) |
| # { |
| # _GLF_global_loop_count++; |
| # } |
| # } |
| # |
| # // Always true. |
| # if(a == _int_3) |
| # { |
| # _GLF_color = vec4(_int_1, _int_0, _int_0, _int_1); |
| # } |
| # else |
| # { |
| # _GLF_color = vec4(_int_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: 102 |
| ; Schema: 0 |
| OpCapability Shader |
| %1 = OpExtInstImport "GLSL.std.450" |
| OpMemoryModel Logical GLSL450 |
| OpEntryPoint Fragment %4 "main" %76 |
| OpExecutionMode %4 OriginUpperLeft |
| OpSource ESSL 320 |
| OpName %4 "main" |
| OpName %15 "buf0" |
| OpMemberName %15 0 "_GLF_uniform_int_values" |
| OpName %17 "" |
| OpName %76 "_GLF_color" |
| OpDecorate %14 ArrayStride 16 |
| OpMemberDecorate %15 0 Offset 0 |
| OpDecorate %15 Block |
| OpDecorate %17 DescriptorSet 0 |
| OpDecorate %17 Binding 0 |
| OpDecorate %76 Location 0 |
| %2 = OpTypeVoid |
| %3 = OpTypeFunction %2 |
| %6 = OpTypeInt 32 1 |
| %9 = OpConstant %6 0 |
| %12 = OpTypeInt 32 0 |
| %13 = OpConstant %12 4 |
| %14 = OpTypeArray %6 %13 |
| %15 = OpTypeStruct %14 |
| %16 = OpTypePointer Uniform %15 |
| %17 = OpVariable %16 Uniform |
| %18 = OpConstant %6 1 |
| %19 = OpTypePointer Uniform %6 |
| %28 = OpConstant %6 10 |
| %29 = OpTypeBool |
| %34 = OpTypeFloat 32 |
| %44 = OpTypeVector %6 2 |
| %46 = OpConstantComposite %44 %9 %9 |
| %59 = OpConstant %6 2 |
| %68 = OpConstant %6 3 |
| %74 = OpTypeVector %34 4 |
| %75 = OpTypePointer Output %74 |
| %76 = OpVariable %75 Output |
| %101 = OpUndef %6 |
| %4 = OpFunction %2 None %3 |
| %5 = OpLabel |
| %20 = OpAccessChain %19 %17 %9 %18 |
| %21 = OpLoad %6 %20 |
| OpBranch %22 |
| %22 = OpLabel |
| %96 = OpPhi %6 %21 %5 %32 %25 |
| %95 = OpPhi %6 %9 %5 %98 %25 |
| %30 = OpSLessThan %29 %95 %28 |
| OpLoopMerge %24 %25 None |
| OpBranchConditional %30 %23 %24 |
| %23 = OpLabel |
| %32 = OpIAdd %6 %96 %18 |
| %45 = OpCompositeConstruct %44 %18 %101 |
| %47 = OpAccessChain %19 %17 %9 %9 |
| %48 = OpLoad %6 %47 |
| %49 = OpCompositeConstruct %44 %48 %48 |
| %50 = OpExtInst %44 %1 SClamp %45 %46 %49 |
| %52 = OpCompositeExtract %6 %50 0 |
| OpBranch %53 |
| %53 = OpLabel |
| %98 = OpPhi %6 %95 %23 %64 %54 |
| %97 = OpPhi %6 %52 %23 %66 %54 |
| %60 = OpAccessChain %19 %17 %9 %59 |
| %61 = OpLoad %6 %60 |
| %62 = OpSLessThan %29 %97 %61 |
| OpLoopMerge %55 %54 None |
| OpBranchConditional %62 %54 %55 |
| %54 = OpLabel |
| %64 = OpIAdd %6 %98 %18 |
| %66 = OpIAdd %6 %97 %18 |
| OpBranch %53 |
| %55 = OpLabel |
| OpBranch %25 |
| %25 = OpLabel |
| OpBranch %22 |
| %24 = OpLabel |
| %69 = OpAccessChain %19 %17 %9 %68 |
| %70 = OpLoad %6 %69 |
| %71 = OpIEqual %29 %96 %70 |
| OpSelectionMerge %73 None |
| OpBranchConditional %71 %72 %90 |
| %72 = OpLabel |
| %77 = OpAccessChain %19 %17 %9 %9 |
| %78 = OpLoad %6 %77 |
| %79 = OpConvertSToF %34 %78 |
| %82 = OpConvertSToF %34 %21 |
| %89 = OpCompositeConstruct %74 %79 %82 %82 %79 |
| OpStore %76 %89 |
| OpBranch %73 |
| %90 = OpLabel |
| %93 = OpConvertSToF %34 %21 |
| %94 = OpCompositeConstruct %74 %93 %93 %93 %93 |
| OpStore %76 %94 |
| OpBranch %73 |
| %73 = OpLabel |
| OpReturn |
| OpFunctionEnd |
| END |
| |
| # uniforms for variant |
| |
| # injectionSwitch |
| BUFFER variant_injectionSwitch DATA_TYPE vec2<float> STD140 DATA |
| 0.0 1.0 |
| END |
| # _GLF_uniform_int_values |
| BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA |
| 1 0 5 3 |
| 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 1 |
| BIND BUFFER variant__GLF_uniform_int_values 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 |