216 lines
6.3 KiB
Plaintext
216 lines
6.3 KiB
Plaintext
#!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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# A test for a bug found by GraphicsFuzz.
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# Short description: A fragment shader with uniform comparison in loop
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# The test passes because main always writes the color red
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# Optimized using spirv-opt with the following arguments:
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# '--eliminate-dead-inserts'
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# '--combine-access-chains'
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# '--eliminate-local-single-block'
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# '--ccp'
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# '--eliminate-dead-branches'
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# '--merge-blocks'
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# '--eliminate-dead-branches'
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# '--merge-return'
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# '--eliminate-local-multi-store'
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# '--simplify-instructions'
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# '--private-to-local'
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# '--combine-access-chains'
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# '--simplify-instructions'
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# '--if-conversion'
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# '--eliminate-dead-code-aggressive'
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# '--eliminate-dead-code-aggressive'
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# '--ccp'
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# '--copy-propagate-arrays'
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# '--ccp'
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# '--private-to-local'
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# '--eliminate-dead-code-aggressive'
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# spirv-opt commit hash: 6b072126595dd8c2448eb1fda616251c5e6d7079
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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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#
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# layout(location = 0) out vec4 _GLF_color;
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#
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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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# float makeFrame()
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# {
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# for (int i = 0; i < 1; i++)
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# {
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# for (int _injected_loop_counter = 0; 1 < int(injectionSwitch.y); 1)
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# {
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# return 1.0;
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# }
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# }
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# return 1.0;
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# }
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#
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# void main()
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# {
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# makeFrame();
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# _GLF_color = vec4(1.0, 0.0, 0.0, 1.0); // Writes the color red
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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: 85
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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" %49
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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 %8 "makeFrame("
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OpName %30 "buf0"
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OpMemberName %30 0 "injectionSwitch"
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OpName %32 ""
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OpName %49 "_GLF_color"
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OpMemberDecorate %30 0 Offset 0
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OpDecorate %30 Block
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OpDecorate %32 DescriptorSet 0
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OpDecorate %32 Binding 0
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OpDecorate %43 RelaxedPrecision
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OpDecorate %49 Location 0
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OpDecorate %67 RelaxedPrecision
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OpDecorate %73 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 = OpTypeFunction %6
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%10 = OpTypeInt 32 1
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%13 = OpConstant %10 0
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%20 = OpConstant %10 1
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%21 = OpTypeBool
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%29 = OpTypeVector %6 2
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%30 = OpTypeStruct %29
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%31 = OpTypePointer Uniform %30
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%32 = OpVariable %31 Uniform
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%33 = OpTypeInt 32 0
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%34 = OpConstant %33 1
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%35 = OpTypePointer Uniform %6
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%40 = OpConstant %6 1
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%47 = OpTypeVector %6 4
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%48 = OpTypePointer Output %47
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%49 = OpVariable %48 Output
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%50 = OpConstant %6 0
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%51 = OpConstantComposite %47 %40 %50 %50 %40
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%59 = OpConstantFalse %21
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%62 = OpConstantTrue %21
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%79 = OpUndef %6
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%82 = OpUndef %21
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%83 = OpUndef %10
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%4 = OpFunction %2 None %3
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%5 = OpLabel
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%46 = OpFunctionCall %6 %8
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OpStore %49 %51
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OpReturn
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OpFunctionEnd
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%8 = OpFunction %6 None %7
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%9 = OpLabel
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OpBranch %56
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%56 = OpLabel
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OpLoopMerge %52 %58 None
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OpBranch %57
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%57 = OpLabel
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OpBranch %14
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%14 = OpLabel
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%70 = OpPhi %21 %59 %57 %68 %63
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%67 = OpPhi %10 %13 %57 %43 %63
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%77 = OpPhi %6 %79 %57 %80 %63
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%22 = OpSLessThan %21 %67 %20
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OpLoopMerge %16 %63 None
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OpBranchConditional %22 %15 %16
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%15 = OpLabel
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OpBranch %24
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%24 = OpLabel
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%81 = OpPhi %6 %77 %15 %79 %27
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%73 = OpPhi %10 %67 %15 %83 %27
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%69 = OpPhi %21 %70 %15 %82 %27
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%36 = OpAccessChain %35 %32 %13 %34
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%37 = OpLoad %6 %36
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%38 = OpConvertFToS %10 %37
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%39 = OpSLessThan %21 %20 %38
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OpLoopMerge %26 %27 None
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OpBranchConditional %39 %25 %26
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%25 = OpLabel
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OpBranch %26
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%27 = OpLabel
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OpBranch %24
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%26 = OpLabel
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%80 = OpPhi %6 %81 %24 %40 %25
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%68 = OpPhi %21 %69 %24 %62 %25
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OpSelectionMerge %84 None
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OpBranchConditional %68 %16 %84
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%84 = OpLabel
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OpBranch %63
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%63 = OpLabel
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%43 = OpIAdd %10 %73 %20
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OpBranch %14
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%16 = OpLabel
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%76 = OpPhi %6 %77 %14 %80 %26
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%74 = OpPhi %21 %70 %14 %68 %26
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OpSelectionMerge %65 None
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OpBranchConditional %74 %52 %65
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%65 = OpLabel
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OpBranch %52
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%58 = OpLabel
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OpBranch %56
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%52 = OpLabel
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%75 = OpPhi %6 %76 %16 %40 %65
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OpReturnValue %75
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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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