227 lines
6.6 KiB
Plaintext
227 lines
6.6 KiB
Plaintext
#!amber
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# Copyright 2021 Google LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# A test for a coverage-gap found by the GraphicsFuzz project.
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# Short description: A fragment shader that covers specific LLVM code paths
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# The test passes because the shader always writes red.
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# Optimized using spirv-opt with the following arguments:
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# '--eliminate-local-multi-store'
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# '--eliminate-dead-branches'
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# '--merge-blocks'
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# '--simplify-instructions'
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# '--eliminate-dead-branches'
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# '--reduce-load-size'
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# '--convert-local-access-chains'
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# '--eliminate-dead-branches'
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# '--if-conversion'
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# '--simplify-instructions'
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# '--ccp'
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# '--vector-dce'
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# '--vector-dce'
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# '--eliminate-dead-code-aggressive'
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# '--redundancy-elimination'
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# '--eliminate-local-multi-store'
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# '--eliminate-dead-branches'
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# '--eliminate-local-single-store'
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# '--private-to-local'
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# '--eliminate-dead-branches'
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# '--eliminate-dead-branches'
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# '--merge-blocks'
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# '--eliminate-dead-branches'
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# '--merge-blocks'
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# spirv-opt commit hash: a0370efd589be33d5d9a85cfde2f85841b3755af
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SHADER vertex variant_vertex_shader PASSTHROUGH
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# variant_fragment_shader is derived from the following GLSL:
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# #version 320 es
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# #define _int_5 _GLF_uniform_int_values[0]
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# #define _int_4 _GLF_uniform_int_values[1]
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# #define _int_1 _GLF_uniform_int_values[2]
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# #define _int_0 _GLF_uniform_int_values[3]
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#
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# precision highp float;
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# precision highp int;
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#
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# // Contents of _GLF_uniform_int_values: [5, 4, 1, 0]
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# layout(set = 0, binding = 0) uniform buf0
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# {
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# int _GLF_uniform_int_values[4];
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# };
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#
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# struct S
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# {
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# int i;
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# };
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#
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# layout(location = 0) out vec4 _GLF_color;
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#
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# void main()
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# {
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# int a = _int_1;
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#
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# for(S s = S(0); s.i < _int_5; s.i++)
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# {
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# if(a > 3)
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# {
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# break;
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# }
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# a++;
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# }
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#
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# if(a == _int_4)
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# {
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# _GLF_color = vec4(_int_1, _int_0, _int_0, _int_1);
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# }
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# else
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# {
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# _GLF_color = vec4(_int_0);
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# }
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# }
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SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0
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; SPIR-V
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; Version: 1.0
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; Generator: Khronos Glslang Reference Front End; 10
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; Bound: 82
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; Schema: 0
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OpCapability Shader
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %4 "main" %56
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OpExecutionMode %4 OriginUpperLeft
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OpSource ESSL 320
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OpName %4 "main"
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OpName %12 "buf0"
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OpMemberName %12 0 "_GLF_uniform_int_values"
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OpName %14 ""
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OpName %20 "S"
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OpMemberName %20 0 "i"
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OpName %22 "s"
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OpName %56 "_GLF_color"
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OpDecorate %11 ArrayStride 16
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OpMemberDecorate %12 0 Offset 0
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OpDecorate %12 Block
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OpDecorate %14 DescriptorSet 0
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OpDecorate %14 Binding 0
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OpDecorate %56 Location 0
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%2 = OpTypeVoid
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%3 = OpTypeFunction %2
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%6 = OpTypeInt 32 1
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%9 = OpTypeInt 32 0
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%10 = OpConstant %9 4
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%11 = OpTypeArray %6 %10
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%12 = OpTypeStruct %11
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%13 = OpTypePointer Uniform %12
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%14 = OpVariable %13 Uniform
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%15 = OpConstant %6 0
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%16 = OpConstant %6 2
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%17 = OpTypePointer Uniform %6
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%20 = OpTypeStruct %6
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%21 = OpTypePointer Function %20
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%23 = OpConstantComposite %20 %15
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%33 = OpTypeBool
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%36 = OpConstant %6 3
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%42 = OpConstant %6 1
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%53 = OpTypeFloat 32
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%54 = OpTypeVector %53 4
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%55 = OpTypePointer Output %54
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%56 = OpVariable %55 Output
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%4 = OpFunction %2 None %3
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%5 = OpLabel
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%22 = OpVariable %21 Function
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%18 = OpAccessChain %17 %14 %15 %16
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%19 = OpLoad %6 %18
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OpStore %22 %23
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OpBranch %24
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%24 = OpLabel
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%81 = OpPhi %20 %23 %5 %80 %27
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%75 = OpPhi %6 %19 %5 %43 %27
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%30 = OpCompositeExtract %6 %81 0
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%31 = OpAccessChain %17 %14 %15 %15
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%32 = OpLoad %6 %31
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%34 = OpSLessThan %33 %30 %32
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OpLoopMerge %26 %27 None
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OpBranchConditional %34 %25 %26
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%25 = OpLabel
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%37 = OpSGreaterThan %33 %75 %36
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OpSelectionMerge %39 None
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OpBranchConditional %37 %38 %39
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%38 = OpLabel
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OpBranch %26
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%39 = OpLabel
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%43 = OpIAdd %6 %75 %42
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OpBranch %27
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%27 = OpLabel
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%45 = OpCompositeExtract %6 %81 0
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%46 = OpIAdd %6 %45 %42
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%80 = OpCompositeInsert %20 %46 %81 0
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OpStore %22 %80
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OpBranch %24
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%26 = OpLabel
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%48 = OpAccessChain %17 %14 %15 %42
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%49 = OpLoad %6 %48
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%50 = OpIEqual %33 %75 %49
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OpSelectionMerge %52 None
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OpBranchConditional %50 %51 %70
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%51 = OpLabel
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%59 = OpConvertSToF %53 %19
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%60 = OpAccessChain %17 %14 %15 %36
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%61 = OpLoad %6 %60
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%62 = OpConvertSToF %53 %61
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%69 = OpCompositeConstruct %54 %59 %62 %62 %59
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OpStore %56 %69
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OpBranch %52
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%70 = OpLabel
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%71 = OpAccessChain %17 %14 %15 %36
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%72 = OpLoad %6 %71
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%73 = OpConvertSToF %53 %72
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%74 = OpCompositeConstruct %54 %73 %73 %73 %73
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OpStore %56 %74
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OpBranch %52
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%52 = OpLabel
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OpReturn
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OpFunctionEnd
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END
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# uniforms for variant
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# _GLF_uniform_int_values
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BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA
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5 4 1 0
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END
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BUFFER variant_framebuffer FORMAT B8G8R8A8_UNORM
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PIPELINE graphics variant_pipeline
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ATTACH variant_vertex_shader
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ATTACH variant_fragment_shader
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FRAMEBUFFER_SIZE 256 256
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BIND BUFFER variant_framebuffer AS color LOCATION 0
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BIND BUFFER variant__GLF_uniform_int_values AS uniform DESCRIPTOR_SET 0 BINDING 0
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END
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CLEAR_COLOR variant_pipeline 0 0 0 255
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CLEAR variant_pipeline
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RUN variant_pipeline DRAW_RECT POS 0 0 SIZE 256 256
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EXPECT variant_framebuffer IDX 0 0 SIZE 256 256 EQ_RGBA 255 0 0 255
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