172 lines
5.0 KiB
Plaintext
172 lines
5.0 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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# '-O'
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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 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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# 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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# _GLF_color = vec4(0);
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#
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# // Iterates once.
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# for(int i = _int_1 & 1; i > 0; i--)
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# {
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# while(true)
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# {
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# _GLF_color = vec4(i, _int_0, _int_0, i);
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#
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# // Always true.
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# if(_int_1 > 0)
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# {
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# break;
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# }
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# }
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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: 61
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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" %9
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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 "_GLF_color"
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OpName %18 "buf0"
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OpMemberName %18 0 "_GLF_uniform_int_values"
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OpName %20 ""
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OpDecorate %9 Location 0
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OpDecorate %17 ArrayStride 16
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OpMemberDecorate %18 0 Offset 0
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OpDecorate %18 Block
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OpDecorate %20 DescriptorSet 0
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OpDecorate %20 Binding 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 4
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%8 = OpTypePointer Output %7
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%9 = OpVariable %8 Output
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%10 = OpConstant %6 0
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%11 = OpConstantComposite %7 %10 %10 %10 %10
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%12 = OpTypeInt 32 1
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%15 = OpTypeInt 32 0
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%16 = OpConstant %15 2
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%17 = OpTypeArray %12 %16
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%18 = OpTypeStruct %17
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%19 = OpTypePointer Uniform %18
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%20 = OpVariable %19 Uniform
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%21 = OpConstant %12 0
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%22 = OpTypePointer Uniform %12
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%25 = OpConstant %12 1
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%33 = OpTypeBool
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%4 = OpFunction %2 None %3
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%5 = OpLabel
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OpStore %9 %11
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%23 = OpAccessChain %22 %20 %21 %21
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%24 = OpLoad %12 %23
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%26 = OpBitwiseAnd %12 %24 %25
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OpBranch %27
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%27 = OpLabel
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%60 = OpPhi %12 %26 %5 %59 %30
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%34 = OpSGreaterThan %33 %60 %21
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OpLoopMerge %29 %30 None
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OpBranchConditional %34 %28 %29
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%28 = OpLabel
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OpBranch %35
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%35 = OpLabel
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OpLoopMerge %55 %38 None
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OpBranch %36
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%36 = OpLabel
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%42 = OpConvertSToF %6 %60
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%43 = OpAccessChain %22 %20 %21 %25
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%44 = OpLoad %12 %43
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%45 = OpConvertSToF %6 %44
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%51 = OpCompositeConstruct %7 %42 %45 %45 %42
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OpStore %9 %51
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%54 = OpSGreaterThan %33 %24 %21
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OpSelectionMerge %56 None
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OpBranchConditional %54 %55 %56
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%55 = OpLabel
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OpBranch %30
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%56 = OpLabel
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OpBranch %38
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%38 = OpLabel
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OpBranch %35
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%30 = OpLabel
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%59 = OpISub %12 %60 %25
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OpBranch %27
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%29 = 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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