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#!amber
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# Copyright 2020 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 a specific instruction simplify code path
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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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# '-O'
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# spirv-opt commit hash: a187dd58a0485988841d325a85c8e6063f53500a
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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 310 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_1_0 _GLF_uniform_float_values[0]
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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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#
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# // Contents of _GLF_uniform_float_values: [1.0, 0.0]
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# layout(set = 0, binding = 0) uniform buf0
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# {
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# float _GLF_uniform_float_values[2];
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# };
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#
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# // Contents of _GLF_uniform_int_values: [1, 0]
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# layout(set = 0, binding = 1) uniform buf1
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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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# 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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# float a = _float_1_0;
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# a = -1.;
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# if (sqrt(_float_0_0) < a)
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# {
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# _GLF_color = vec4(_int_0);
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# }
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# else
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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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# }
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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: 56
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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" %31
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OpExecutionMode %4 OriginUpperLeft
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OpSource ESSL 310
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OpName %4 "main"
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OpName %12 "buf0"
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OpMemberName %12 0 "_GLF_uniform_float_values"
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OpName %14 ""
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OpName %31 "_GLF_color"
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OpName %33 "buf1"
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OpMemberName %33 0 "_GLF_uniform_int_values"
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OpName %35 ""
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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 %31 Location 0
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OpDecorate %32 ArrayStride 16
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OpMemberDecorate %33 0 RelaxedPrecision
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OpMemberDecorate %33 0 Offset 0
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OpDecorate %33 Block
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OpDecorate %35 DescriptorSet 0
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OpDecorate %35 Binding 1
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OpDecorate %39 RelaxedPrecision
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OpDecorate %44 RelaxedPrecision
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OpDecorate %47 RelaxedPrecision
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%2 = OpTypeVoid
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%3 = OpTypeFunction %2
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%6 = OpTypeFloat 32
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%9 = OpTypeInt 32 0
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%10 = OpConstant %9 2
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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 = OpTypeInt 32 1
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%16 = OpConstant %15 0
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%17 = OpTypePointer Uniform %6
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%20 = OpConstant %6 -1
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%25 = OpTypeBool
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%29 = OpTypeVector %6 4
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%30 = OpTypePointer Output %29
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%31 = OpVariable %30 Output
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%32 = OpTypeArray %15 %10
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%33 = OpTypeStruct %32
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%34 = OpTypePointer Uniform %33
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%35 = OpVariable %34 Uniform
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%36 = OpConstant %15 1
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%37 = OpTypePointer Uniform %15
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%4 = OpFunction %2 None %3
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%5 = OpLabel
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%21 = OpAccessChain %17 %14 %16 %16
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%22 = OpLoad %6 %21
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%23 = OpExtInst %6 %1 Sqrt %22
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%26 = OpFOrdLessThan %25 %23 %20
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OpSelectionMerge %28 None
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OpBranchConditional %26 %27 %42
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%27 = OpLabel
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%38 = OpAccessChain %37 %35 %16 %36
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%39 = OpLoad %15 %38
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%40 = OpConvertSToF %6 %39
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%41 = OpCompositeConstruct %29 %40 %40 %40 %40
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OpStore %31 %41
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OpBranch %28
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%42 = OpLabel
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%43 = OpAccessChain %37 %35 %16 %16
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%44 = OpLoad %15 %43
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%45 = OpConvertSToF %6 %44
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%46 = OpAccessChain %37 %35 %16 %36
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%47 = OpLoad %15 %46
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%48 = OpConvertSToF %6 %47
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%55 = OpCompositeConstruct %29 %45 %48 %48 %45
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OpStore %31 %55
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OpBranch %28
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%28 = 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
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END
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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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1.0 0.0
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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 1
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BIND BUFFER variant__GLF_uniform_float_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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