197 lines
6.2 KiB
Plaintext
197 lines
6.2 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: Fragment shader using (int, mat2) struct
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# The test passes because the struct instance is created and used in a way that guarantees writing red to the output buffer
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# Optimized using spirv-opt with the following arguments:
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# '--eliminate-local-single-block'
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# '--eliminate-dead-branches'
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# '--vector-dce'
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# '--simplify-instructions'
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# '--reduce-load-size'
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# '--eliminate-local-multi-store'
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# '--private-to-local'
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# '--eliminate-dead-branches'
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# '--eliminate-dead-branches'
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# '--merge-return'
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# '--ccp'
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# '--reduce-load-size'
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# '--eliminate-local-single-block'
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# '--scalar-replacement=100'
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# '--combine-access-chains'
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# '--if-conversion'
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# '--ccp'
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# '--eliminate-dead-branches'
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# '--vector-dce'
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# '--eliminate-dead-branches'
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# '--merge-return'
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# '--eliminate-local-single-block'
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# '--inline-entry-points-exhaustive'
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# '--eliminate-dead-inserts'
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# '--eliminate-local-multi-store'
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# '--convert-local-access-chains'
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# '--eliminate-dead-branches'
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# '--vector-dce'
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# '--eliminate-dead-inserts'
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# '--private-to-local'
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# '--eliminate-local-multi-store'
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# spirv-opt commit hash: f1e5cd73f658abcc23ee96d78f2dc27c4b7028c1
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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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# struct S {
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# int f1;
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# mat2 f2;
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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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# S myS = S(1, transpose(gl_FragCoord.x < 0.0 ? mat2(1.0, 2.0, 3.0, 4.0) : mat2(0.5, -0.5, -0.5, 0.5)));
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# _GLF_color = vec4(float(myS.f1), myS.f2[0][0] + myS.f2[1][0], myS.f2[0][1] + myS.f2[1][1], float(myS.f1));
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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: 81
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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" %16 %46
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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 %10 "S"
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OpMemberName %10 0 "f1"
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OpMemberName %10 1 "f2"
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OpName %16 "gl_FragCoord"
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OpName %46 "_GLF_color"
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OpMemberDecorate %10 0 RelaxedPrecision
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OpDecorate %16 BuiltIn FragCoord
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OpDecorate %46 Location 0
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OpDecorate %69 RelaxedPrecision
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%2 = OpTypeVoid
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%3 = OpTypeFunction %2
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%6 = OpTypeInt 32 1
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%7 = OpTypeFloat 32
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%8 = OpTypeVector %7 2
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%9 = OpTypeMatrix %8 2
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%10 = OpTypeStruct %6 %9
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%11 = OpTypePointer Function %10
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%13 = OpConstant %6 1
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%14 = OpTypeVector %7 4
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%15 = OpTypePointer Input %14
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%16 = OpVariable %15 Input
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%17 = OpTypeInt 32 0
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%18 = OpConstant %17 0
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%19 = OpTypePointer Input %7
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%22 = OpConstant %7 0
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%23 = OpTypeBool
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%25 = OpTypePointer Function %9
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%29 = OpConstant %7 1
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%30 = OpConstant %7 2
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%31 = OpConstantComposite %8 %29 %30
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%32 = OpConstant %7 3
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%33 = OpConstant %7 4
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%34 = OpConstantComposite %8 %32 %33
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%35 = OpConstantComposite %9 %31 %34
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%37 = OpConstant %7 0.5
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%38 = OpConstant %7 -0.5
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%39 = OpConstantComposite %8 %37 %38
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%40 = OpConstantComposite %8 %38 %37
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%41 = OpConstantComposite %9 %39 %40
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%45 = OpTypePointer Output %14
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%46 = OpVariable %45 Output
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%47 = OpConstant %6 0
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%48 = OpTypePointer Function %6
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%52 = OpTypePointer Function %7
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%58 = OpConstant %17 1
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%4 = OpFunction %2 None %3
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%5 = OpLabel
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%70 = OpVariable %25 Function
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%69 = OpVariable %48 Function
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%26 = OpVariable %25 Function
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%20 = OpAccessChain %19 %16 %18
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%21 = OpLoad %7 %20
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%24 = OpFOrdLessThan %23 %21 %22
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OpSelectionMerge %28 None
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OpBranchConditional %24 %27 %36
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%27 = OpLabel
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OpStore %26 %35
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OpBranch %28
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%36 = OpLabel
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OpStore %26 %41
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OpBranch %28
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%28 = OpLabel
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%68 = OpPhi %9 %35 %27 %41 %36
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%43 = OpTranspose %9 %68
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%44 = OpCompositeConstruct %10 %13 %43
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%71 = OpCompositeExtract %6 %44 0
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OpStore %69 %71
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%72 = OpCompositeExtract %9 %44 1
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OpStore %70 %72
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%51 = OpConvertSToF %7 %71
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%73 = OpAccessChain %52 %70 %47 %18
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%77 = OpLoad %9 %70
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%54 = OpCompositeExtract %7 %77 0 0
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%74 = OpAccessChain %52 %70 %13 %18
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%78 = OpLoad %9 %70
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%56 = OpCompositeExtract %7 %78 1 0
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%57 = OpFAdd %7 %54 %56
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%75 = OpAccessChain %52 %70 %47 %58
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%79 = OpLoad %9 %70
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%60 = OpCompositeExtract %7 %79 0 1
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%76 = OpAccessChain %52 %70 %13 %58
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%80 = OpLoad %9 %70
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%62 = OpCompositeExtract %7 %80 1 1
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%63 = OpFAdd %7 %60 %62
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%66 = OpConvertSToF %7 %71
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%67 = OpCompositeConstruct %14 %51 %57 %63 %66
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OpStore %46 %67
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OpReturn
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OpFunctionEnd
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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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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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