213 lines
6.0 KiB
Plaintext
213 lines
6.0 KiB
Plaintext
#!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 GraphicsFuzz.
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# Short description: A fragment shader that covers a specific inlining optimization path.
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# The test passes because 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-return'
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# '--eliminate-dead-inserts'
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# '--eliminate-local-single-store'
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# '--scalar-replacement=100'
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# '--eliminate-dead-branches'
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# '--merge-blocks'
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# '--scalar-replacement=100'
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# '--eliminate-dead-branches'
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# '--ccp'
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# '--ccp'
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# '--eliminate-dead-branches'
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# '--merge-blocks'
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# '--vector-dce'
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# '--eliminate-dead-branches'
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# '--scalar-replacement=100'
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# '--eliminate-local-single-store'
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# '--combine-access-chains'
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# '--redundancy-elimination'
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# '--ccp'
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# '--eliminate-dead-code-aggressive'
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# '--private-to-local'
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# '--eliminate-local-single-block'
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# '--eliminate-local-multi-store'
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# '--eliminate-local-single-block'
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# '--ccp'
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# spirv-opt commit hash: 96354f5047bf35765af49657304357e00264e5f9
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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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# precision highp float;
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# precision highp int;
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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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# int zero;
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# };
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#
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# vec4 returnRed()
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# {
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# do
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# {
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# // Always false.
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# if(zero == 1)
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# {
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# return vec4(1, 0, 0, 1);
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# }
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# }
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# while(false);
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# return vec4(1, 0, 0, 1);
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# }
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#
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# void main()
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# {
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# do
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# {
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# _GLF_color = returnRed();
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# }
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# while(false);
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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; 8
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; Bound: 63
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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" %40
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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 "returnRed("
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OpName %16 "buf0"
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OpMemberName %16 0 "zero"
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OpName %18 ""
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OpName %40 "_GLF_color"
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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 %40 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 4
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%8 = OpTypeFunction %7
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%15 = OpTypeInt 32 1
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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 %15 0
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%20 = OpTypePointer Uniform %15
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%23 = OpConstant %15 1
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%24 = OpTypeBool
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%28 = OpConstant %6 1
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%29 = OpConstant %6 0
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%30 = OpConstantComposite %7 %28 %29 %29 %28
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%32 = OpConstantFalse %24
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%39 = OpTypePointer Output %7
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%40 = OpVariable %39 Output
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%43 = OpTypePointer Function %7
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%49 = OpTypePointer Function %24
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%51 = OpConstantTrue %24
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%61 = OpUndef %7
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%62 = OpUndef %24
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%4 = OpFunction %2 None %3
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%5 = OpLabel
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OpBranch %35
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%35 = OpLabel
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%41 = OpFunctionCall %7 %9
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OpStore %40 %41
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OpLoopMerge %37 %35 None
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OpBranchConditional %32 %35 %37
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%37 = OpLabel
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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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%50 = OpVariable %49 Function %32
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%44 = OpVariable %43 Function
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OpBranch %46
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%46 = OpLabel
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%56 = OpPhi %24 %32 %10 %62 %48
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OpLoopMerge %42 %48 None
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OpBranch %11
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%11 = OpLabel
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OpLoopMerge %13 %14 None
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OpBranch %12
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%12 = OpLabel
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%21 = OpAccessChain %20 %18 %19
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%22 = OpLoad %15 %21
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%25 = OpIEqual %24 %22 %23
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OpSelectionMerge %27 None
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OpBranchConditional %25 %26 %27
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%26 = OpLabel
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OpStore %50 %51
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OpStore %44 %30
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OpBranch %13
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%27 = OpLabel
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OpBranch %14
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%14 = OpLabel
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OpBranchConditional %32 %11 %13
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%13 = OpLabel
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%58 = OpPhi %7 %30 %26 %61 %14
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%54 = OpPhi %24 %51 %26 %32 %14
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OpSelectionMerge %52 None
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OpBranchConditional %54 %42 %52
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%52 = OpLabel
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OpStore %50 %51
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OpStore %44 %30
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OpBranch %42
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%48 = OpLabel
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OpBranch %46
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%42 = OpLabel
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%57 = OpPhi %7 %58 %13 %30 %52
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OpReturnValue %57
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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 DATA
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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 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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