Files
Vulkan-CTS-bin/vulkan/amber/graphicsfuzz/cov-loop-find-lsb-eight-fragcoord-never-discard.amber
T
2026-05-06 23:44:13 +02:00

284 lines
8.4 KiB
Plaintext

#!amber
# Copyright 2022 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
DEVICE_EXTENSION VK_KHR_shader_terminate_invocation
# A test for a coverage-gap found by the GraphicsFuzz project.
# Short description: A fragment shader that covers specific LLVM code paths
# The test passes because the shader always writes red.
# Optimized using spirv-opt with the following arguments:
# '-O'
# spirv-opt commit hash: a0370efd589be33d5d9a85cfde2f85841b3755af
SHADER vertex variant_vertex_shader PASSTHROUGH
# variant_fragment_shader is derived from the following GLSL:
# #version 320 es
# #define _int_0 _GLF_uniform_int_values[0]
# #define _int_1 _GLF_uniform_int_values[1]
# #define _int_64 _GLF_uniform_int_values[2]
#
# precision highp float;
# precision highp int;
#
# // Contents of _GLF_uniform_int_values: [0, 1, 64]
# layout(set = 0, binding = 0) uniform buf0
# {
# int _GLF_uniform_int_values[3];
# };
#
# // Contents of injectionSwitch: [0.0, 1.0]
# layout(set = 0, binding = 1) uniform buf1
# {
# vec2 injectionSwitch;
# };
#
# layout(location = 0) out vec4 _GLF_color;
#
# void main()
# {
# // Always false.
# if(injectionSwitch.x > injectionSwitch.y)
# {
# return;
# }
#
# int a = 0;
#
# do
# {
# // Iterates twice but has no effect.
# for(int i = 1; i < findLSB(8); i++)
# {
# if(i < a)
# {
# continue;
# }
#
# // Always false.
# if(injectionSwitch.x > injectionSwitch.y)
# {
# }
# else
# {
# // Always false.
# if(gl_FragCoord.y < 0.0)
# {
# discard;
# }
# }
# }
#
# a++;
# }
# while(a < 64);
#
# // Always true.
# if(a == _int_64)
# {
# _GLF_color = vec4(_int_1, _int_0, _int_0, _int_1);
# }
# else
# {
# _GLF_color = vec4(_int_0);
# }
# }
SHADER fragment variant_fragment_shader SPIRV-ASM TARGET_ENV spv1.0
; SPIR-V
; Version: 1.0
; Generator: Khronos Glslang Reference Front End; 10
; Bound: 117
; Schema: 0
OpCapability Shader
OpExtension "SPV_KHR_terminate_invocation"
%1 = OpExtInstImport "GLSL.std.450"
OpMemoryModel Logical GLSL450
OpEntryPoint Fragment %4 "main" %59 %89
OpExecutionMode %4 OriginUpperLeft
OpSource ESSL 320
OpName %4 "main"
OpName %8 "buf1"
OpMemberName %8 0 "injectionSwitch"
OpName %10 ""
OpName %59 "gl_FragCoord"
OpName %78 "buf0"
OpMemberName %78 0 "_GLF_uniform_int_values"
OpName %80 ""
OpName %89 "_GLF_color"
OpMemberDecorate %8 0 Offset 0
OpDecorate %8 Block
OpDecorate %10 DescriptorSet 0
OpDecorate %10 Binding 1
OpDecorate %41 RelaxedPrecision
OpDecorate %59 BuiltIn FragCoord
OpDecorate %77 ArrayStride 16
OpMemberDecorate %78 0 Offset 0
OpDecorate %78 Block
OpDecorate %80 DescriptorSet 0
OpDecorate %80 Binding 0
OpDecorate %89 Location 0
%2 = OpTypeVoid
%3 = OpTypeFunction %2
%6 = OpTypeFloat 32
%7 = OpTypeVector %6 2
%8 = OpTypeStruct %7
%9 = OpTypePointer Uniform %8
%10 = OpVariable %9 Uniform
%11 = OpTypeInt 32 1
%12 = OpConstant %11 0
%13 = OpTypeInt 32 0
%14 = OpConstant %13 0
%15 = OpTypePointer Uniform %6
%18 = OpConstant %13 1
%21 = OpTypeBool
%33 = OpConstant %11 1
%40 = OpConstant %11 8
%57 = OpTypeVector %6 4
%58 = OpTypePointer Input %57
%59 = OpVariable %58 Input
%60 = OpTypePointer Input %6
%63 = OpConstant %6 0
%73 = OpConstant %11 64
%76 = OpConstant %13 3
%77 = OpTypeArray %11 %76
%78 = OpTypeStruct %77
%79 = OpTypePointer Uniform %78
%80 = OpVariable %79 Uniform
%81 = OpConstant %11 2
%82 = OpTypePointer Uniform %11
%88 = OpTypePointer Output %57
%89 = OpVariable %88 Output
%4 = OpFunction %2 None %3
%5 = OpLabel
OpSelectionMerge %108 None
OpSwitch %14 %109
%109 = OpLabel
%16 = OpAccessChain %15 %10 %12 %14
%17 = OpLoad %6 %16
%19 = OpAccessChain %15 %10 %12 %18
%20 = OpLoad %6 %19
%22 = OpFOrdGreaterThan %21 %17 %20
OpSelectionMerge %24 None
OpBranchConditional %22 %23 %24
%23 = OpLabel
OpBranch %108
%24 = OpLabel
OpBranch %28
%28 = OpLabel
%116 = OpPhi %11 %12 %24 %71 %31
OpLoopMerge %30 %31 None
OpBranch %34
%34 = OpLabel
%114 = OpPhi %11 %33 %28 %69 %37
%41 = OpExtInst %11 %1 FindILsb %40
%42 = OpSLessThan %21 %114 %41
OpLoopMerge %36 %37 None
OpBranchConditional %42 %35 %36
%35 = OpLabel
%45 = OpSLessThan %21 %114 %116
OpSelectionMerge %47 None
OpBranchConditional %45 %46 %47
%46 = OpLabel
OpBranch %37
%47 = OpLabel
OpSelectionMerge %55 None
OpBranchConditional %22 %54 %56
%54 = OpLabel
OpBranch %55
%56 = OpLabel
%61 = OpAccessChain %60 %59 %18
%62 = OpLoad %6 %61
%64 = OpFOrdLessThan %21 %62 %63
OpSelectionMerge %66 None
OpBranchConditional %64 %65 %66
%65 = OpLabel
OpTerminateInvocation
%66 = OpLabel
OpBranch %55
%55 = OpLabel
OpBranch %37
%37 = OpLabel
%69 = OpIAdd %11 %114 %33
OpBranch %34
%36 = OpLabel
%71 = OpIAdd %11 %116 %33
OpBranch %31
%31 = OpLabel
%74 = OpSLessThan %21 %71 %73
OpBranchConditional %74 %28 %30
%30 = OpLabel
%83 = OpAccessChain %82 %80 %12 %81
%84 = OpLoad %11 %83
%85 = OpIEqual %21 %71 %84
OpSelectionMerge %87 None
OpBranchConditional %85 %86 %103
%86 = OpLabel
%90 = OpAccessChain %82 %80 %12 %33
%91 = OpLoad %11 %90
%92 = OpConvertSToF %6 %91
%93 = OpAccessChain %82 %80 %12 %12
%94 = OpLoad %11 %93
%95 = OpConvertSToF %6 %94
%102 = OpCompositeConstruct %57 %92 %95 %95 %92
OpStore %89 %102
OpBranch %87
%103 = OpLabel
%104 = OpAccessChain %82 %80 %12 %12
%105 = OpLoad %11 %104
%106 = OpConvertSToF %6 %105
%107 = OpCompositeConstruct %57 %106 %106 %106 %106
OpStore %89 %107
OpBranch %87
%87 = OpLabel
OpBranch %108
%108 = OpLabel
OpReturn
OpFunctionEnd
END
# uniforms for variant
# injectionSwitch
BUFFER variant_injectionSwitch DATA_TYPE vec2<float> STD140 DATA
0.0 1.0
END
# _GLF_uniform_int_values
BUFFER variant__GLF_uniform_int_values DATA_TYPE int32[] STD140 DATA
0 1 64
END
BUFFER variant_framebuffer FORMAT B8G8R8A8_UNORM
PIPELINE graphics variant_pipeline
ATTACH variant_vertex_shader
ATTACH variant_fragment_shader
FRAMEBUFFER_SIZE 32 32
BIND BUFFER variant_framebuffer AS color LOCATION 0
BIND BUFFER variant_injectionSwitch AS uniform DESCRIPTOR_SET 0 BINDING 1
BIND BUFFER variant__GLF_uniform_int_values AS uniform DESCRIPTOR_SET 0 BINDING 0
END
CLEAR_COLOR variant_pipeline 0 0 0 255
CLEAR variant_pipeline
RUN variant_pipeline DRAW_RECT POS 0 0 SIZE 32 32
EXPECT variant_framebuffer IDX 0 0 SIZE 32 32 EQ_RGBA 255 0 0 255