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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 specific NIR 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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# '--simplify-instructions'
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# '--reduce-load-size'
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# '--inline-entry-points-exhaustive'
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# '--eliminate-local-single-block'
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# '--redundancy-elimination'
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# '--eliminate-dead-branches'
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# '--eliminate-dead-inserts'
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# '--redundancy-elimination'
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# '--eliminate-local-single-block'
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# '--eliminate-local-multi-store'
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# '--simplify-instructions'
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# '--eliminate-local-multi-store'
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# '--eliminate-dead-branches'
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# '--eliminate-dead-branches'
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# '--merge-return'
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# '--combine-access-chains'
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# '--eliminate-local-multi-store'
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# '--eliminate-local-single-block'
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# '--eliminate-local-single-store'
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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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# '--simplify-instructions'
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# '--eliminate-dead-branches'
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# '--merge-blocks'
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# '--eliminate-local-multi-store'
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# '--eliminate-dead-branches'
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# '--merge-return'
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# '--ccp'
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# '--eliminate-local-single-store'
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# '--redundancy-elimination'
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# '--eliminate-local-multi-store'
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# '--eliminate-dead-code-aggressive'
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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_0 _GLF_uniform_int_values[0]
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# #define _int_1 _GLF_uniform_int_values[1]
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# #define _float_1_0 _GLF_uniform_float_values[0]
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#
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# precision highp int;
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# precision highp float;
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#
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# // Contents of _GLF_uniform_float_values: 1.0
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# layout(set = 0, binding = 0) uniform buf0
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# {
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# float _GLF_uniform_float_values[1];
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# };
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#
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# // Contents of _GLF_uniform_int_values: [0, 1]
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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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# // Contents of zero: 0
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# layout(set = 0, binding = 2) uniform buf2
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# {
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# int zero;
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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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# vec3 v = vec3(_int_1);
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# // Static out of bound access required to hit the coverage point.
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# int a = 3;
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#
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# // Always false.
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# if(zero > _int_0)
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# {
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# // Out of bounds access but never executed.
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# v[a] = _float_1_0;
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# }
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#
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# _GLF_color = vec4(v[_int_1], _int_0, _int_0, _int_1);
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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: 66
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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" %51
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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 "v"
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OpName %14 "buf1"
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OpMemberName %14 0 "_GLF_uniform_int_values"
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OpName %16 ""
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OpName %27 "buf2"
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OpMemberName %27 0 "zero"
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OpName %29 ""
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OpName %41 "buf0"
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OpMemberName %41 0 "_GLF_uniform_float_values"
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OpName %43 ""
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OpName %51 "_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 1
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OpMemberDecorate %27 0 Offset 0
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OpDecorate %27 Block
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OpDecorate %29 DescriptorSet 0
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OpDecorate %29 Binding 2
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OpDecorate %40 ArrayStride 16
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OpMemberDecorate %41 0 Offset 0
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OpDecorate %41 Block
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OpDecorate %43 DescriptorSet 0
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OpDecorate %43 Binding 0
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OpDecorate %51 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 3
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%8 = OpTypePointer Function %7
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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 = OpConstant %10 1
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%19 = OpTypePointer Uniform %10
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%26 = OpConstant %10 3
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%27 = OpTypeStruct %10
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%28 = OpTypePointer Uniform %27
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%29 = OpVariable %28 Uniform
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%34 = OpTypeBool
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%39 = OpConstant %11 1
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%40 = OpTypeArray %6 %39
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%41 = OpTypeStruct %40
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%42 = OpTypePointer Uniform %41
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%43 = OpVariable %42 Uniform
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%44 = OpTypePointer Uniform %6
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%47 = OpTypePointer Function %6
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%49 = OpTypeVector %6 4
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%50 = OpTypePointer Output %49
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%51 = OpVariable %50 Output
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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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%20 = OpAccessChain %19 %16 %17 %18
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%21 = OpLoad %10 %20
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%22 = OpConvertSToF %6 %21
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%23 = OpCompositeConstruct %7 %22 %22 %22
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OpStore %9 %23
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%30 = OpAccessChain %19 %29 %17
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%31 = OpLoad %10 %30
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%32 = OpAccessChain %19 %16 %17 %17
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%33 = OpLoad %10 %32
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%35 = OpSGreaterThan %34 %31 %33
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OpSelectionMerge %37 None
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OpBranchConditional %35 %36 %37
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%36 = OpLabel
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%45 = OpAccessChain %44 %43 %17 %17
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%46 = OpLoad %6 %45
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%48 = OpAccessChain %47 %9 %26
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OpStore %48 %46
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OpBranch %37
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%37 = OpLabel
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%54 = OpAccessChain %47 %9 %21
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%55 = OpLoad %6 %54
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%58 = OpConvertSToF %6 %33
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%65 = OpCompositeConstruct %49 %55 %58 %58 %22
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OpStore %51 %65
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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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# zero
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BUFFER variant_zero DATA_TYPE int32[] STD140 DATA
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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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0 1
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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
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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_zero AS uniform DESCRIPTOR_SET 0 BINDING 2
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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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