193 lines
6.2 KiB
Plaintext
193 lines
6.2 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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# Optimized using spirv-opt with the following arguments:
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# '-Os'
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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_1 _GLF_uniform_int_values[0]
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# #define _int_0 _GLF_uniform_int_values[1]
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# #define _float_0_0 _GLF_uniform_float_values[0]
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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]
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# layout(set = 0, binding = 0) uniform buf0
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# {
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# int _GLF_uniform_int_values[2];
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# };
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#
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# // Contents of _GLF_uniform_float_values: 0.0
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# layout(set = 0, binding = 1) uniform buf1
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# {
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# float _GLF_uniform_float_values[1];
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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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# // Always true. The line below simplifies to
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# // min(vec2(1, 1), vec2(transpose(mat2(1)))).y = min(vec2(1, 1), vec2(mat2(1))).y
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# // = min(vec2(1, 1), vec2(1, 0)).y = vec2(1, 0).y = 0.
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# if(min(vec2(1), vec2(transpose(mat2(_int_1)))).y == _float_0_0)
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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: 68
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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" %47
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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 %14 "buf0"
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OpMemberName %14 0 "_GLF_uniform_int_values"
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OpName %16 ""
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OpName %35 "buf1"
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OpMemberName %35 0 "_GLF_uniform_float_values"
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OpName %37 ""
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OpName %47 "_GLF_color"
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OpDecorate %13 ArrayStride 16
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OpMemberDecorate %14 0 Offset 0
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OpDecorate %14 Block
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OpDecorate %16 DescriptorSet 0
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OpDecorate %16 Binding 0
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OpDecorate %34 ArrayStride 16
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OpMemberDecorate %35 0 Offset 0
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OpDecorate %35 Block
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OpDecorate %37 DescriptorSet 0
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OpDecorate %37 Binding 1
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OpDecorate %47 Location 0
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%2 = OpTypeVoid
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%3 = OpTypeFunction %2
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%6 = OpTypeFloat 32
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%7 = OpTypeVector %6 2
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%8 = OpConstant %6 1
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%9 = OpConstantComposite %7 %8 %8
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%10 = OpTypeInt 32 1
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%11 = OpTypeInt 32 0
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%12 = OpConstant %11 2
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%13 = OpTypeArray %10 %12
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%14 = OpTypeStruct %13
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%15 = OpTypePointer Uniform %14
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%16 = OpVariable %15 Uniform
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%17 = OpConstant %10 0
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%18 = OpTypePointer Uniform %10
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%22 = OpTypeMatrix %7 2
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%23 = OpConstant %6 0
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%32 = OpConstant %11 1
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%34 = OpTypeArray %6 %32
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%35 = OpTypeStruct %34
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%36 = OpTypePointer Uniform %35
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%37 = OpVariable %36 Uniform
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%38 = OpTypePointer Uniform %6
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%41 = OpTypeBool
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%45 = OpTypeVector %6 4
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%46 = OpTypePointer Output %45
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%47 = OpVariable %46 Output
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%51 = OpConstant %10 1
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%67 = OpUndef %6
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%4 = OpFunction %2 None %3
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%5 = OpLabel
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%19 = OpAccessChain %18 %16 %17 %17
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%20 = OpLoad %10 %19
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%21 = OpConvertSToF %6 %20
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%24 = OpCompositeConstruct %7 %21 %23
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%25 = OpCompositeConstruct %7 %23 %21
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%26 = OpCompositeConstruct %22 %24 %25
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%27 = OpTranspose %22 %26
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%29 = OpCompositeExtract %6 %27 0 1
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%30 = OpCompositeConstruct %7 %67 %29
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%31 = OpExtInst %7 %1 FMin %9 %30
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%33 = OpCompositeExtract %6 %31 1
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%39 = OpAccessChain %38 %37 %17 %17
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%40 = OpLoad %6 %39
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%42 = OpFOrdEqual %41 %33 %40
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OpSelectionMerge %44 None
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OpBranchConditional %42 %43 %62
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%43 = OpLabel
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%52 = OpAccessChain %18 %16 %17 %51
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%53 = OpLoad %10 %52
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%54 = OpConvertSToF %6 %53
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%61 = OpCompositeConstruct %45 %21 %54 %54 %21
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OpStore %47 %61
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OpBranch %44
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%62 = OpLabel
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%63 = OpAccessChain %18 %16 %17 %51
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%64 = OpLoad %10 %63
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%65 = OpConvertSToF %6 %64
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%66 = OpCompositeConstruct %45 %65 %65 %65 %65
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OpStore %47 %66
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OpBranch %44
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%44 = 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_float_values
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BUFFER variant__GLF_uniform_float_values DATA_TYPE float[] STD140 DATA
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0.0
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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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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 32 32
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BIND BUFFER variant_framebuffer AS color LOCATION 0
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BIND BUFFER variant__GLF_uniform_float_values 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 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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