243 lines
7.1 KiB
Plaintext
243 lines
7.1 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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DEVICE_EXTENSION VK_KHR_shader_terminate_invocation
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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 OpKill wrapping 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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# '--convert-local-access-chains'
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# '--eliminate-dead-branches'
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# '--merge-blocks'
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# '--eliminate-local-single-store'
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# '--eliminate-dead-branches'
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# '--merge-return'
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# '--inline-entry-points-exhaustive'
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# '--copy-propagate-arrays'
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# '--if-conversion'
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# '--reduce-load-size'
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# '--convert-local-access-chains'
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# '--if-conversion'
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# '--redundancy-elimination'
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# '--if-conversion'
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# '--simplify-instructions'
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# '--scalar-replacement=100'
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# '--simplify-instructions'
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# '--if-conversion'
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# '--eliminate-dead-inserts'
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# '--eliminate-dead-branches'
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# '--eliminate-dead-code-aggressive'
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# spirv-opt commit hash: 9215c1b7df0029f27807e8c8d7ec80532ce90a87
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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 five;
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# };
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#
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# float func(float x)
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# {
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# if (x > 5.0)
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# {
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# if (gl_FragCoord.x < 0.5)
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# discard;
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# else if (gl_FragCoord.y < 0.5)
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# discard;
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# }
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#
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# return x + 1.0;
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# }
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#
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# void main()
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# {
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# float f = 0.0;
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#
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# for(int i = 0; i < five; i++)
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# f = func(float(i));
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#
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# if (f == 5.0)
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# _GLF_color = vec4(1, 0, 0, 1);
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# else
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# _GLF_color = vec4(0);
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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: 79
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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" %20 %75
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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 "func(f1;"
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OpName %9 "x"
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OpName %20 "gl_FragCoord"
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OpName %44 "f"
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OpName %48 "i"
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OpName %56 "buf0"
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OpMemberName %56 0 "five"
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OpName %58 ""
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OpName %65 "param"
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OpName %75 "_GLF_color"
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OpDecorate %20 BuiltIn FragCoord
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OpMemberDecorate %56 0 Offset 0
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OpDecorate %56 Block
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OpDecorate %58 DescriptorSet 0
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OpDecorate %58 Binding 0
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OpDecorate %75 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 = OpTypePointer Function %6
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%8 = OpTypeFunction %6 %7
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%13 = OpConstant %6 5
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%14 = OpTypeBool
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%18 = OpTypeVector %6 4
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%19 = OpTypePointer Input %18
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%20 = OpVariable %19 Input
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%21 = OpTypeInt 32 0
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%22 = OpConstant %21 0
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%23 = OpTypePointer Input %6
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%26 = OpConstant %6 0.5
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%32 = OpConstant %21 1
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%40 = OpConstant %6 1
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%45 = OpConstant %6 0
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%46 = OpTypeInt 32 1
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%47 = OpTypePointer Function %46
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%49 = OpConstant %46 0
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%56 = OpTypeStruct %46
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%57 = OpTypePointer Uniform %56
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%58 = OpVariable %57 Uniform
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%59 = OpTypePointer Uniform %46
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%68 = OpConstant %46 1
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%74 = OpTypePointer Output %18
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%75 = OpVariable %74 Output
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%76 = OpConstantComposite %18 %40 %45 %45 %40
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%78 = OpConstantComposite %18 %45 %45 %45 %45
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%4 = OpFunction %2 None %3
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%5 = OpLabel
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%44 = OpVariable %7 Function
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%48 = OpVariable %47 Function
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%65 = OpVariable %7 Function
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OpStore %44 %45
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OpStore %48 %49
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OpBranch %50
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%50 = OpLabel
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%55 = OpLoad %46 %48
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%60 = OpAccessChain %59 %58 %49
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%61 = OpLoad %46 %60
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%62 = OpSLessThan %14 %55 %61
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OpLoopMerge %52 %51 None
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OpBranchConditional %62 %51 %52
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%51 = OpLabel
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%63 = OpLoad %46 %48
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%64 = OpConvertSToF %6 %63
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OpStore %65 %64
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%66 = OpFunctionCall %6 %10 %65
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OpStore %44 %66
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%67 = OpLoad %46 %48
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%69 = OpIAdd %46 %67 %68
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OpStore %48 %69
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OpBranch %50
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%52 = OpLabel
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%70 = OpLoad %6 %44
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%71 = OpFOrdEqual %14 %70 %13
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OpSelectionMerge %73 None
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OpBranchConditional %71 %72 %77
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%72 = OpLabel
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OpStore %75 %76
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OpBranch %73
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%77 = OpLabel
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OpStore %75 %78
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OpBranch %73
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%73 = OpLabel
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OpReturn
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OpFunctionEnd
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%10 = OpFunction %6 None %8
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%9 = OpFunctionParameter %7
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%11 = OpLabel
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%12 = OpLoad %6 %9
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%15 = OpFOrdGreaterThan %14 %12 %13
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OpSelectionMerge %17 None
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OpBranchConditional %15 %16 %17
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%16 = OpLabel
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%24 = OpAccessChain %23 %20 %22
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%25 = OpLoad %6 %24
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%27 = OpFOrdLessThan %14 %25 %26
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OpSelectionMerge %29 None
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OpBranchConditional %27 %28 %31
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%28 = OpLabel
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OpTerminateInvocation
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%31 = OpLabel
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%33 = OpAccessChain %23 %20 %32
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%34 = OpLoad %6 %33
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%35 = OpFOrdLessThan %14 %34 %26
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OpSelectionMerge %37 None
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OpBranchConditional %35 %36 %37
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%36 = OpLabel
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OpTerminateInvocation
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%37 = OpLabel
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OpBranch %29
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%29 = OpLabel
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OpBranch %17
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%17 = OpLabel
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%39 = OpLoad %6 %9
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%41 = OpFAdd %6 %39 %40
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OpReturnValue %41
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OpFunctionEnd
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END
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# uniforms for variant
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# five
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BUFFER variant_five DATA_TYPE int32 DATA
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5
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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_five 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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