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#!amber
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# Copyright 2019 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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DEVICE_EXTENSION VK_KHR_shader_terminate_invocation
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# A test for a bug found by GraphicsFuzz.
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# Short description: A fragment shader with an always false if function
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# The test passes because main always writes the color red. (Additionally the discard statement is never reached).
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# Optimized using spirv-opt with the following arguments:
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# '--eliminate-local-single-block'
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# '--reduce-load-size'
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# '--combine-access-chains'
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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-dead-branches'
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# '--eliminate-dead-branches'
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# '--merge-return'
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# '--copy-propagate-arrays'
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# '--copy-propagate-arrays'
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# '--eliminate-dead-inserts'
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# '--merge-blocks'
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# '--copy-propagate-arrays'
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# '--combine-access-chains'
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# '--simplify-instructions'
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# '--convert-local-access-chains'
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# spirv-opt commit hash: 4a00a80c40484a6f6f72f48c9d34943cf8f180d4
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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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#
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# // END OF GENERATED HEADER
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# precision highp float;
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#
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# layout(location = 0) out vec4 _GLF_color;
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# layout(set = 0, binding = 0) uniform buf0
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# {
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# vec2 injectionSwitch;
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# };
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#
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# vec3 mand()
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# {
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# for (
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# int k = 0;
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# k < 1000;
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# 1)
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# {
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# discard;
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# }
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# return vec3(1.0);
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# }
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# void main()
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# {
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# if (injectionSwitch.x > injectionSwitch.y)
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# {
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# for (
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# int j = 0;
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# j < 4;
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# 1)
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# {
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# mand();
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# }
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# }
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#
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# _GLF_color = vec4(1.0, 0.0, 0.0, 1.0);
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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; 7
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; Bound: 64
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; Schema: 0
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OpCapability Shader
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OpExtension "SPV_KHR_terminate_invocation"
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%1 = OpExtInstImport "GLSL.std.450"
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OpMemoryModel Logical GLSL450
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OpEntryPoint Fragment %4 "main" %57
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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 %9 "mand("
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OpName %13 "k"
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OpName %31 "buf0"
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OpMemberName %31 0 "injectionSwitch"
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OpName %33 ""
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OpName %45 "j"
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OpName %57 "_GLF_color"
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OpDecorate %13 RelaxedPrecision
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OpMemberDecorate %31 0 Offset 0
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OpDecorate %31 Block
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OpDecorate %33 DescriptorSet 0
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OpDecorate %33 Binding 0
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OpDecorate %45 RelaxedPrecision
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OpDecorate %57 Location 0
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OpDecorate %14 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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%7 = OpTypeVector %6 3
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%8 = OpTypeFunction %7
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%11 = OpTypeInt 32 1
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%12 = OpTypePointer Function %11
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%14 = OpConstant %11 0
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%21 = OpConstant %11 1000
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%22 = OpTypeBool
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%25 = OpConstant %11 1
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%26 = OpConstant %6 1
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%27 = OpConstantComposite %7 %26 %26 %26
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%30 = OpTypeVector %6 2
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%31 = OpTypeStruct %30
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%32 = OpTypePointer Uniform %31
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%33 = OpVariable %32 Uniform
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%34 = OpTypeInt 32 0
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%35 = OpConstant %34 0
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%36 = OpTypePointer Uniform %6
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%39 = OpConstant %34 1
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%52 = OpConstant %11 4
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%55 = OpTypeVector %6 4
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%56 = OpTypePointer Output %55
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%57 = OpVariable %56 Output
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%58 = OpConstant %6 0
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%59 = OpConstantComposite %55 %26 %58 %58 %26
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%62 = OpUndef %11
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%63 = OpConstantTrue %22
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%4 = OpFunction %2 None %3
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%5 = OpLabel
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%45 = OpVariable %12 Function
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%37 = OpAccessChain %36 %33 %14 %35
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%38 = OpLoad %6 %37
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%40 = OpAccessChain %36 %33 %14 %39
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%41 = OpLoad %6 %40
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%42 = OpFOrdGreaterThan %22 %38 %41
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OpSelectionMerge %44 None
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OpBranchConditional %42 %43 %44
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%43 = OpLabel
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OpStore %45 %14
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OpBranch %46
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%46 = OpLabel
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OpLoopMerge %48 %47 None
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OpBranchConditional %63 %47 %48
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%47 = OpLabel
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%54 = OpFunctionCall %7 %9
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OpBranch %46
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%48 = OpLabel
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OpBranch %44
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%44 = OpLabel
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OpStore %57 %59
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OpReturn
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OpFunctionEnd
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%9 = OpFunction %7 None %8
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%10 = OpLabel
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%13 = OpVariable %12 Function
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OpStore %13 %14
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OpBranch %15
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%15 = OpLabel
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OpLoopMerge %17 %18 None
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OpBranchConditional %63 %16 %17
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%16 = OpLabel
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OpTerminateInvocation
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%18 = OpLabel
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OpBranch %15
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%17 = OpLabel
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OpReturnValue %27
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OpFunctionEnd
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END
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# uniforms for variant
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# injectionSwitch
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BUFFER variant_injectionSwitch DATA_TYPE vec2<float> DATA
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0.0 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_injectionSwitch 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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