236 lines
7.0 KiB
Plaintext
236 lines
7.0 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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# '--eliminate-dead-branches'
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# '--merge-blocks'
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# '--eliminate-dead-code-aggressive'
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# '--convert-local-access-chains'
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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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# '--reduce-load-size'
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# '--convert-local-access-chains'
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# '--eliminate-local-multi-store'
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# '--combine-access-chains'
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# '--vector-dce'
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# '--scalar-replacement=100'
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# '--eliminate-dead-branches'
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# '--merge-blocks'
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# '--copy-propagate-arrays'
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# '--eliminate-dead-branches'
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# '--scalar-replacement=100'
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# '--eliminate-dead-branches'
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# '--merge-blocks'
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# '--vector-dce'
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# '--convert-local-access-chains'
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# '--combine-access-chains'
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# '--redundancy-elimination'
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# '--inline-entry-points-exhaustive'
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# '--combine-access-chains'
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# '--eliminate-dead-branches'
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# '--eliminate-local-multi-store'
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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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#
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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_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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# layout(location = 0) out vec4 _GLF_color;
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#
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# void func(int x)
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# {
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# // Always false.
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# if(x > _int_1)
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# {
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# return;
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# }
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#
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# ivec2 a = ivec2(_int_1);
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# // b = 1 & ((~0 | ~0) >> 1) = 1 & (~0 >> 1) = 1 & ~0 = 1
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# int b = _int_1 & (((a.x != _int_1 ? 0 : ~ 0) | (a.x != _int_1 ? 0 : ~ 0)) >> _int_1);
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#
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# // Always true.
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# if(b == _int_1)
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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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#
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# void main()
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# {
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# func(_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: 91
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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" %65
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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 %10 "func(i1;"
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OpName %9 "x"
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OpName %16 "buf0"
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OpMemberName %16 0 "_GLF_uniform_int_values"
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OpName %18 ""
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OpName %30 "a"
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OpName %34 "b"
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OpName %65 "_GLF_color"
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OpName %85 "param"
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OpDecorate %15 ArrayStride 16
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OpMemberDecorate %16 0 Offset 0
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OpDecorate %16 Block
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OpDecorate %18 DescriptorSet 0
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OpDecorate %18 Binding 0
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OpDecorate %65 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 = OpTypePointer Function %6
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%8 = OpTypeFunction %2 %7
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%13 = OpTypeInt 32 0
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%14 = OpConstant %13 2
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%15 = OpTypeArray %6 %14
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%16 = OpTypeStruct %15
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%17 = OpTypePointer Uniform %16
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%18 = OpVariable %17 Uniform
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%19 = OpConstant %6 0
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%20 = OpTypePointer Uniform %6
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%23 = OpTypeBool
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%28 = OpTypeVector %6 2
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%29 = OpTypePointer Function %28
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%37 = OpConstant %13 0
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%43 = OpConstant %6 -1
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%62 = OpTypeFloat 32
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%63 = OpTypeVector %62 4
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%64 = OpTypePointer Output %63
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%65 = OpVariable %64 Output
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%69 = OpConstant %6 1
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%4 = OpFunction %2 None %3
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%5 = OpLabel
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%85 = OpVariable %7 Function
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%86 = OpAccessChain %20 %18 %19 %19
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%87 = OpLoad %6 %86
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OpStore %85 %87
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%88 = OpFunctionCall %2 %10 %85
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OpReturn
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OpFunctionEnd
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%10 = OpFunction %2 None %8
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%9 = OpFunctionParameter %7
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%11 = OpLabel
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%30 = OpVariable %29 Function
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%34 = OpVariable %7 Function
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%12 = OpLoad %6 %9
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%21 = OpAccessChain %20 %18 %19 %19
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%22 = OpLoad %6 %21
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%24 = OpSGreaterThan %23 %12 %22
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OpSelectionMerge %26 None
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OpBranchConditional %24 %25 %26
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%25 = OpLabel
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OpReturn
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%26 = OpLabel
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%33 = OpCompositeConstruct %28 %22 %22
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OpStore %30 %33
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%38 = OpAccessChain %7 %30 %37
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%89 = OpLoad %28 %30
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%39 = OpCompositeExtract %6 %89 0
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%42 = OpINotEqual %23 %39 %22
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%44 = OpSelect %6 %42 %19 %43
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%90 = OpLoad %28 %30
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%46 = OpCompositeExtract %6 %90 0
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%49 = OpINotEqual %23 %46 %22
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%50 = OpSelect %6 %49 %19 %43
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%51 = OpBitwiseOr %6 %44 %50
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%54 = OpShiftRightArithmetic %6 %51 %22
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%55 = OpBitwiseAnd %6 %22 %54
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OpStore %34 %55
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%59 = OpIEqual %23 %55 %22
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OpSelectionMerge %61 None
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OpBranchConditional %59 %60 %80
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%60 = OpLabel
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%68 = OpConvertSToF %62 %22
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%70 = OpAccessChain %20 %18 %19 %69
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%71 = OpLoad %6 %70
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%72 = OpConvertSToF %62 %71
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%79 = OpCompositeConstruct %63 %68 %72 %72 %68
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OpStore %65 %79
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OpBranch %61
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%80 = OpLabel
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%81 = OpAccessChain %20 %18 %19 %69
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%82 = OpLoad %6 %81
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%83 = OpConvertSToF %62 %82
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%84 = OpCompositeConstruct %63 %83 %83 %83 %83
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OpStore %65 %84
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OpBranch %61
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%61 = 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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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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