203 lines
6.3 KiB
Plaintext
203 lines
6.3 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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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_256 _GLF_uniform_int_values[0]
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# #define _int_1 _GLF_uniform_int_values[1]
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# #define _int_0 _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: [256, 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[3];
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# };
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#
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# // Contents of resolution: 256.0
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# layout(set = 0, binding = 1) uniform buf1
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# {
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# float resolution;
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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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# // p becomes (128, 128).
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# ivec2 p = ivec2(resolution) >> ivec2(1);
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# // p becomes (256, 128).
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# p.x += p.y;
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#
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# // Always true.
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# if(p.x == _int_256)
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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: 69
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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" %49
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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 %9 "p"
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OpName %11 "buf1"
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OpMemberName %11 0 "resolution"
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OpName %13 ""
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OpName %37 "buf0"
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OpMemberName %37 0 "_GLF_uniform_int_values"
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OpName %39 ""
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OpName %49 "_GLF_color"
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OpMemberDecorate %11 0 Offset 0
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OpDecorate %11 Block
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OpDecorate %13 DescriptorSet 0
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OpDecorate %13 Binding 1
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OpDecorate %36 ArrayStride 16
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OpMemberDecorate %37 0 Offset 0
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OpDecorate %37 Block
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OpDecorate %39 DescriptorSet 0
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OpDecorate %39 Binding 0
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OpDecorate %49 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 = OpTypeVector %6 2
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%8 = OpTypePointer Function %7
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%10 = OpTypeFloat 32
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%11 = OpTypeStruct %10
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%12 = OpTypePointer Uniform %11
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%13 = OpVariable %12 Uniform
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%14 = OpConstant %6 0
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%15 = OpTypePointer Uniform %10
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%20 = OpConstant %6 1
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%21 = OpConstantComposite %7 %20 %20
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%23 = OpTypeInt 32 0
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%24 = OpConstant %23 1
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%25 = OpTypePointer Function %6
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%28 = OpConstant %23 0
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%35 = OpConstant %23 3
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%36 = OpTypeArray %6 %35
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%37 = OpTypeStruct %36
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%38 = OpTypePointer Uniform %37
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%39 = OpVariable %38 Uniform
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%40 = OpTypePointer Uniform %6
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%43 = OpTypeBool
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%47 = OpTypeVector %10 4
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%48 = OpTypePointer Output %47
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%49 = OpVariable %48 Output
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%53 = OpConstant %6 2
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%4 = OpFunction %2 None %3
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%5 = OpLabel
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%9 = OpVariable %8 Function
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%16 = OpAccessChain %15 %13 %14
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%17 = OpLoad %10 %16
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%18 = OpConvertFToS %6 %17
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%19 = OpCompositeConstruct %7 %18 %18
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%22 = OpShiftRightArithmetic %7 %19 %21
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OpStore %9 %22
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%26 = OpAccessChain %25 %9 %24
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%27 = OpLoad %6 %26
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%29 = OpAccessChain %25 %9 %28
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%30 = OpLoad %6 %29
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%31 = OpIAdd %6 %30 %27
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%32 = OpAccessChain %25 %9 %28
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OpStore %32 %31
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%33 = OpAccessChain %25 %9 %28
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%34 = OpLoad %6 %33
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%41 = OpAccessChain %40 %39 %14 %14
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%42 = OpLoad %6 %41
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%44 = OpIEqual %43 %34 %42
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OpSelectionMerge %46 None
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OpBranchConditional %44 %45 %64
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%45 = OpLabel
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%50 = OpAccessChain %40 %39 %14 %20
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%51 = OpLoad %6 %50
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%52 = OpConvertSToF %10 %51
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%54 = OpAccessChain %40 %39 %14 %53
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%55 = OpLoad %6 %54
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%56 = OpConvertSToF %10 %55
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%57 = OpAccessChain %40 %39 %14 %53
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%58 = OpLoad %6 %57
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%59 = OpConvertSToF %10 %58
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%60 = OpAccessChain %40 %39 %14 %20
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%61 = OpLoad %6 %60
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%62 = OpConvertSToF %10 %61
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%63 = OpCompositeConstruct %47 %52 %56 %59 %62
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OpStore %49 %63
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OpBranch %46
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%64 = OpLabel
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%65 = OpAccessChain %40 %39 %14 %53
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%66 = OpLoad %6 %65
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%67 = OpConvertSToF %10 %66
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%68 = OpCompositeConstruct %47 %67 %67 %67 %67
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OpStore %49 %68
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OpBranch %46
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%46 = 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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# resolution
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BUFFER variant_resolution DATA_TYPE float STD140 DATA
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256.0
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END
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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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256 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_resolution AS uniform DESCRIPTOR_SET 0 BINDING 1
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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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