--- /dev/null
+#!amber
+
+# Copyright 2019 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+# A test for a bug found by GraphicsFuzz.
+
+# Short description: A compute shader with loops, breaks, returns
+
+# The test passes because the shader immediately writes 42 to the 0th position
+# in the SSBO and that is the only thing we check. All loops terminate. All
+# other writes to the SSBO are at indices greater than 0.
+
+# Optimized using spirv-opt with the following arguments:
+# '--eliminate-dead-code-aggressive'
+# '--simplify-instructions'
+# '--redundancy-elimination'
+# '--copy-propagate-arrays'
+# '--convert-local-access-chains'
+# '--eliminate-dead-branches'
+# '--eliminate-local-multi-store'
+# '--eliminate-local-multi-store'
+# '--eliminate-dead-inserts'
+# '--eliminate-local-single-block'
+# '--redundancy-elimination'
+# '--eliminate-dead-branches'
+# spirv-opt commit hash: 4a00a80c40484a6f6f72f48c9d34943cf8f180d4
+
+
+
+# variant_compute_shader is derived from the following GLSL:
+# #version 310 es
+#
+# layout(std430, binding = 0) buffer theSSBO
+# {
+# uint data_out[5];
+# };
+#
+# layout(set = 0, binding = 1) uniform buf0 {
+# vec2 injectionSwitch;
+# };
+#
+# layout(local_size_x = 100, local_size_y = 1, local_size_z = 1) in;
+#
+# void main()
+# {
+# data_out[0] = 42u;
+# uint gid = uint(injectionSwitch.y); // 1
+# do
+# {
+# if (1u != gid) // always false
+# {
+# data_out[1] = 1u;
+# return;
+# }
+# } while (false);
+#
+# uint d;
+# while (true)
+# {
+# if (d != 0u)
+# {
+# data_out[1] = 2u;
+# for (int i = 0; i < 1; ++i)
+# {
+# data_out[1] = 3u;
+# return;
+# }
+# }
+# break;
+# }
+# data_out[gid] = 7u; // gid == 1
+# }
+SHADER compute variant_compute_shader SPIRV-ASM
+; SPIR-V
+; Version: 1.0
+; Generator: Khronos Glslang Reference Front End; 7
+; Bound: 86
+; Schema: 0
+ OpCapability Shader
+ %1 = OpExtInstImport "GLSL.std.450"
+ OpMemoryModel Logical GLSL450
+ OpEntryPoint GLCompute %4 "main"
+ OpExecutionMode %4 LocalSize 100 1 1
+ OpSource ESSL 310
+ OpName %4 "main"
+ OpName %9 "theSSBO"
+ OpMemberName %9 0 "data_out"
+ OpName %11 ""
+ OpName %18 "gid"
+ OpName %21 "buf0"
+ OpMemberName %21 0 "injectionSwitch"
+ OpName %23 ""
+ OpName %48 "d"
+ OpName %57 "i"
+ OpDecorate %8 ArrayStride 4
+ OpMemberDecorate %9 0 Offset 0
+ OpDecorate %9 BufferBlock
+ OpDecorate %11 DescriptorSet 0
+ OpDecorate %11 Binding 0
+ OpMemberDecorate %21 0 Offset 0
+ OpDecorate %21 Block
+ OpDecorate %23 DescriptorSet 0
+ OpDecorate %23 Binding 1
+ OpDecorate %76 BuiltIn WorkgroupSize
+ %2 = OpTypeVoid
+ %3 = OpTypeFunction %2
+ %6 = OpTypeInt 32 0
+ %7 = OpConstant %6 5
+ %8 = OpTypeArray %6 %7
+ %9 = OpTypeStruct %8
+ %10 = OpTypePointer Uniform %9
+ %11 = OpVariable %10 Uniform
+ %12 = OpTypeInt 32 1
+ %13 = OpConstant %12 0
+ %14 = OpConstant %6 42
+ %15 = OpTypePointer Uniform %6
+ %17 = OpTypePointer Function %6
+ %19 = OpTypeFloat 32
+ %20 = OpTypeVector %19 2
+ %21 = OpTypeStruct %20
+ %22 = OpTypePointer Uniform %21
+ %23 = OpVariable %22 Uniform
+ %24 = OpConstant %6 1
+ %25 = OpTypePointer Uniform %19
+ %34 = OpTypeBool
+ %38 = OpConstant %12 1
+ %41 = OpConstantFalse %34
+ %47 = OpConstantTrue %34
+ %50 = OpConstant %6 0
+ %54 = OpConstant %6 2
+ %56 = OpTypePointer Function %12
+ %65 = OpConstant %6 3
+ %72 = OpConstant %6 7
+ %74 = OpTypeVector %6 3
+ %75 = OpConstant %6 100
+ %76 = OpConstantComposite %74 %75 %24 %24
+ %80 = OpUndef %6
+ %85 = OpUndef %12
+ %4 = OpFunction %2 None %3
+ %5 = OpLabel
+ %18 = OpVariable %17 Function
+ %48 = OpVariable %17 Function
+ %57 = OpVariable %56 Function
+ %16 = OpAccessChain %15 %11 %13 %13
+ OpStore %16 %14
+ %26 = OpAccessChain %25 %23 %13 %24
+ %27 = OpLoad %19 %26
+ %28 = OpConvertFToU %6 %27
+ OpStore %18 %28
+ OpBranch %29
+ %29 = OpLabel
+ OpLoopMerge %31 %32 None
+ OpBranch %30
+ %30 = OpLabel
+ %35 = OpINotEqual %34 %24 %28
+ OpSelectionMerge %37 None
+ OpBranchConditional %35 %36 %37
+ %36 = OpLabel
+ %39 = OpAccessChain %15 %11 %13 %38
+ OpStore %39 %24
+ OpReturn
+ %37 = OpLabel
+ OpBranch %32
+ %32 = OpLabel
+ OpBranchConditional %41 %29 %31
+ %31 = OpLabel
+ OpBranch %42
+ %42 = OpLabel
+ OpLoopMerge %44 %45 None
+ OpBranch %46
+ %46 = OpLabel
+ OpBranch %43
+ %43 = OpLabel
+ %51 = OpINotEqual %34 %80 %50
+ OpSelectionMerge %53 None
+ OpBranchConditional %51 %52 %53
+ %52 = OpLabel
+ %55 = OpAccessChain %15 %11 %13 %38
+ OpStore %55 %54
+ OpStore %57 %13
+ OpBranch %58
+ %58 = OpLabel
+ OpLoopMerge %60 %61 None
+ OpBranch %62
+ %62 = OpLabel
+ %64 = OpSLessThan %34 %13 %38
+ OpBranchConditional %64 %59 %60
+ %59 = OpLabel
+ OpStore %55 %65
+ OpReturn
+ %61 = OpLabel
+ OpBranch %58
+ %60 = OpLabel
+ OpBranch %53
+ %53 = OpLabel
+ %82 = OpPhi %6 %28 %43 %28 %60
+ OpBranch %44
+ %45 = OpLabel
+ OpBranch %42
+ %44 = OpLabel
+ %73 = OpAccessChain %15 %11 %13 %82
+ OpStore %73 %72
+ OpReturn
+ OpFunctionEnd
+END
+
+# uniforms for variant
+
+# injectionSwitch
+BUFFER variant_injectionSwitch DATA_TYPE vec2<float> DATA
+ 0.0 1.0
+END
+
+BUFFER variant_ssbo DATA_TYPE uint32 DATA
+ 0 0 0 0 0
+END
+
+PIPELINE compute variant_pipeline
+ ATTACH variant_compute_shader
+ BIND BUFFER variant_ssbo AS storage DESCRIPTOR_SET 0 BINDING 0
+ BIND BUFFER variant_injectionSwitch AS uniform DESCRIPTOR_SET 0 BINDING 1
+END
+
+RUN variant_pipeline 1 1 1
+
+EXPECT variant_ssbo IDX 0 EQ 42
projects / platform / upstream / VK-GL-CTS.git / commitdiff