205 lines
6.3 KiB
Plaintext
205 lines
6.3 KiB
Plaintext
#!amber
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# Copyright 2022 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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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_1 _GLF_uniform_int_values[0]
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# #define _int_0 _GLF_uniform_int_values[1]
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# #define _int_2 _GLF_uniform_int_values[2]
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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: [1, 0, 2]
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# layout(set = 0, binding = 0) uniform buf0
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# {
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# int _GLF_uniform_int_values[3];
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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 arr[10] = int[10](30989, 0, 0, 0, 0, 0, 0, 0, 0, 1);
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# int i = 0;
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# int a = _int_0;
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#
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# // Iterates twice.
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# while(i != 1)
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# {
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# // The first iteration sets i to arr[0] = 30989, and the second iteration sets i to arr[9] = 1.
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# i = arr[clamp(i, 0, 10 - 1)];
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# a++;
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# }
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#
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# // Always true.
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# if(a == _int_2)
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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: 71
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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" %52
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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 %11 "arr"
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OpName %17 "i"
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OpName %18 "a"
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OpName %21 "buf0"
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OpMemberName %21 0 "_GLF_uniform_int_values"
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OpName %23 ""
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OpName %52 "_GLF_color"
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OpDecorate %20 ArrayStride 16
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OpMemberDecorate %21 0 Offset 0
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OpDecorate %21 Block
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OpDecorate %23 DescriptorSet 0
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OpDecorate %23 Binding 0
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OpDecorate %52 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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%7 = OpTypeInt 32 0
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%8 = OpConstant %7 10
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%9 = OpTypeArray %6 %8
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%10 = OpTypePointer Function %9
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%12 = OpConstant %6 30989
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%13 = OpConstant %6 0
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%14 = OpConstant %6 1
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%15 = OpConstantComposite %9 %12 %13 %13 %13 %13 %13 %13 %13 %13 %14
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%16 = OpTypePointer Function %6
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%19 = OpConstant %7 3
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%20 = OpTypeArray %6 %19
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%21 = OpTypeStruct %20
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%22 = OpTypePointer Uniform %21
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%23 = OpVariable %22 Uniform
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%24 = OpTypePointer Uniform %6
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%33 = OpTypeBool
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%36 = OpConstant %6 9
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%43 = OpConstant %6 2
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%49 = OpTypeFloat 32
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%50 = OpTypeVector %49 4
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%51 = OpTypePointer Output %50
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%52 = OpVariable %51 Output
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%4 = OpFunction %2 None %3
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%5 = OpLabel
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%11 = OpVariable %10 Function
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%17 = OpVariable %16 Function
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%18 = OpVariable %16 Function
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OpStore %11 %15
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OpStore %17 %13
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%25 = OpAccessChain %24 %23 %13 %14
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%26 = OpLoad %6 %25
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OpStore %18 %26
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OpBranch %27
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%27 = OpLabel
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OpLoopMerge %29 %30 None
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OpBranch %31
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%31 = OpLabel
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%32 = OpLoad %6 %17
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%34 = OpINotEqual %33 %32 %14
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OpBranchConditional %34 %28 %29
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%28 = OpLabel
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%35 = OpLoad %6 %17
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%37 = OpExtInst %6 %1 SClamp %35 %13 %36
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%38 = OpAccessChain %16 %11 %37
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%39 = OpLoad %6 %38
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OpStore %17 %39
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%40 = OpLoad %6 %18
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%41 = OpIAdd %6 %40 %14
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OpStore %18 %41
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OpBranch %30
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%30 = OpLabel
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OpBranch %27
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%29 = OpLabel
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%42 = OpLoad %6 %18
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%44 = OpAccessChain %24 %23 %13 %43
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%45 = OpLoad %6 %44
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%46 = OpIEqual %33 %42 %45
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OpSelectionMerge %48 None
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OpBranchConditional %46 %47 %66
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%47 = OpLabel
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%53 = OpAccessChain %24 %23 %13 %13
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%54 = OpLoad %6 %53
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%55 = OpConvertSToF %49 %54
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%56 = OpAccessChain %24 %23 %13 %14
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%57 = OpLoad %6 %56
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%58 = OpConvertSToF %49 %57
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%59 = OpAccessChain %24 %23 %13 %14
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%60 = OpLoad %6 %59
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%61 = OpConvertSToF %49 %60
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%62 = OpAccessChain %24 %23 %13 %13
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%63 = OpLoad %6 %62
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%64 = OpConvertSToF %49 %63
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%65 = OpCompositeConstruct %50 %55 %58 %61 %64
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OpStore %52 %65
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OpBranch %48
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%66 = OpLabel
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%67 = OpAccessChain %24 %23 %13 %14
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%68 = OpLoad %6 %67
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%69 = OpConvertSToF %49 %68
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%70 = OpCompositeConstruct %50 %69 %69 %69 %69
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OpStore %52 %70
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OpBranch %48
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%48 = 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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1 0 2
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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 32 32
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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 32 32
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EXPECT variant_framebuffer IDX 0 0 SIZE 32 32 EQ_RGBA 255 0 0 255
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