external/vulkancts/modules/vulkan/subgroups/vktSubgroupsClusteredTests.cpp - third_party/vulkan-cts - Git at Google

 /*------------------------------------------------------------------------
  * Vulkan Conformance Tests
  * ------------------------
  *
  * Copyright (c) 2019 The Khronos Group Inc.
  * Copyright (c) 2019 Google Inc.
  * Copyright (c) 2017 Codeplay Software Ltd.
  *
  * 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.
  *
  */ /*!
  * \file
  * \brief Subgroups Tests
  */ /*--------------------------------------------------------------------*/

 #include "vktSubgroupsClusteredTests.hpp"
 #include "vktSubgroupsScanHelpers.hpp"
 #include "vktSubgroupsTestsUtils.hpp"

 #include <string>
 #include <vector>

 using namespace tcu;
 using namespace std;
 using namespace vk;
 using namespace vkt;

 namespace
 {
 enum OpType
 {
 	OPTYPE_CLUSTERED_ADD = 0,
 	OPTYPE_CLUSTERED_MUL,
 	OPTYPE_CLUSTERED_MIN,
 	OPTYPE_CLUSTERED_MAX,
 	OPTYPE_CLUSTERED_AND,
 	OPTYPE_CLUSTERED_OR,
 	OPTYPE_CLUSTERED_XOR,
 	OPTYPE_CLUSTERED_LAST
 };

 struct CaseDefinition
 {
 	Operator			op;
 	VkShaderStageFlags	shaderStage;
 	VkFormat			format;
 	de::SharedPtr<bool>	geometryPointSizeSupported;
 	deBool				requiredSubgroupSize;
 };

 static Operator getOperator (OpType opType)
 {
 	switch (opType)
 	{
 		case OPTYPE_CLUSTERED_ADD:	return OPERATOR_ADD;
 		case OPTYPE_CLUSTERED_MUL:	return OPERATOR_MUL;
 		case OPTYPE_CLUSTERED_MIN:	return OPERATOR_MIN;
 		case OPTYPE_CLUSTERED_MAX:	return OPERATOR_MAX;
 		case OPTYPE_CLUSTERED_AND:	return OPERATOR_AND;
 		case OPTYPE_CLUSTERED_OR:	return OPERATOR_OR;
 		case OPTYPE_CLUSTERED_XOR:	return OPERATOR_XOR;
 		default:					TCU_THROW(InternalError, "Unsupported op type");
 	}
 }

 static bool checkVertexPipelineStages (const void*			internalData,
 									   vector<const void*>	datas,
 									   deUint32				width,
 									   deUint32)
 {
 	DE_UNREF(internalData);

 	return subgroups::check(datas, width, 1);
 }

 static bool checkCompute (const void*			internalData,
 						  vector<const void*>	datas,
 						  const deUint32		numWorkgroups[3],
 						  const deUint32		localSize[3],
 						  deUint32)
 {
 	DE_UNREF(internalData);

 	return subgroups::checkCompute(datas, numWorkgroups, localSize, 1);
 }

 string getOpTypeName (Operator op)
 {
 	return getScanOpName("subgroupClustered", "", op, SCAN_REDUCE);
 }

 string getExtHeader (CaseDefinition& caseDef)
 {
 	return	"#extension GL_KHR_shader_subgroup_clustered: enable\n"
 			"#extension GL_KHR_shader_subgroup_ballot: enable\n" +
 			subgroups::getAdditionalExtensionForFormat(caseDef.format);
 }

 string getTestSrc (CaseDefinition& caseDef)
 {
 	const string	formatName	= subgroups::getFormatNameForGLSL(caseDef.format);
 	const string	opTypeName	= getOpTypeName(caseDef.op);
 	const string	identity	= getIdentity(caseDef.op, caseDef.format);
 	const string	opOperation	= getOpOperation(caseDef.op, caseDef.format, "ref", "data[index]");
 	const string	compare		= getCompare(caseDef.op, caseDef.format, "ref", "op");
 	ostringstream	bdy;

 	bdy << "  bool tempResult = true;\n"
 		<< "  uvec4 mask = subgroupBallot(true);\n";

 	for (deUint32 i = 1; i <= subgroups::maxSupportedSubgroupSize(); i *= 2)
 	{
 		bdy	<< "  {\n"
 			<< "    const uint clusterSize = " << i << ";\n"
 			<< "    if (clusterSize <= gl_SubgroupSize)\n"
 			<< "    {\n"
 			<< "      " << formatName << " op = "
 			<< opTypeName + "(data[gl_SubgroupInvocationID], clusterSize);\n"
 			<< "      for (uint clusterOffset = 0; clusterOffset < gl_SubgroupSize; clusterOffset += clusterSize)\n"
 			<< "      {\n"
 			<< "        " << formatName << " ref = "
 			<< identity << ";\n"
 			<< "        for (uint index = clusterOffset; index < (clusterOffset + clusterSize); index++)\n"
 			<< "        {\n"
 			<< "          if (subgroupBallotBitExtract(mask, index))\n"
 			<< "          {\n"
 			<< "            ref = " << opOperation << ";\n"
 			<< "          }\n"
 			<< "        }\n"
 			<< "        if ((clusterOffset <= gl_SubgroupInvocationID) && (gl_SubgroupInvocationID < (clusterOffset + clusterSize)))\n"
 			<< "        {\n"
 			<< "          if (!" << compare << ")\n"
 			<< "          {\n"
 			<< "            tempResult = false;\n"
 			<< "          }\n"
 			<< "        }\n"
 			<< "      }\n"
 			<< "    }\n"
 			<< "  }\n"
 			<< "  tempRes = tempResult ? 1 : 0;\n";
 	}

 	return bdy.str();
 }

 void initFrameBufferPrograms (SourceCollections& programCollection, CaseDefinition caseDef)
 {
 	const ShaderBuildOptions	buildOptions	(programCollection.usedVulkanVersion, SPIRV_VERSION_1_3, 0u);
 	const string				extHeader		= getExtHeader(caseDef);
 	const string				testSrc			= getTestSrc(caseDef);

 	subgroups::initStdFrameBufferPrograms(programCollection, buildOptions, caseDef.shaderStage, caseDef.format, *caseDef.geometryPointSizeSupported, extHeader, testSrc, "");
 }

 void initPrograms (SourceCollections& programCollection, CaseDefinition caseDef)
 {
 	const bool					spirv14required	= isAllRayTracingStages(caseDef.shaderStage);
 	const SpirvVersion			spirvVersion	= spirv14required ? SPIRV_VERSION_1_4 : SPIRV_VERSION_1_3;
 	const ShaderBuildOptions	buildOptions	(programCollection.usedVulkanVersion, spirvVersion, 0u);
 	const string				extHeader		= getExtHeader(caseDef);
 	const string				testSrc			= getTestSrc(caseDef);

 	subgroups::initStdPrograms(programCollection, buildOptions, caseDef.shaderStage, caseDef.format, *caseDef.geometryPointSizeSupported, extHeader, testSrc, "");
 }

 void supportedCheck (Context& context, CaseDefinition caseDef)
 {
 	if (!subgroups::isSubgroupSupported(context))
 		TCU_THROW(NotSupportedError, "Subgroup operations are not supported");

 	if (!subgroups::isSubgroupFeatureSupportedForDevice(context, VK_SUBGROUP_FEATURE_CLUSTERED_BIT))
 		TCU_THROW(NotSupportedError, "Device does not support subgroup clustered operations");

 	if (!subgroups::isFormatSupportedForDevice(context, caseDef.format))
 		TCU_THROW(NotSupportedError, "Device does not support the specified format in subgroup operations");

 	if (caseDef.requiredSubgroupSize)
 	{
 		context.requireDeviceFunctionality("VK_EXT_subgroup_size_control");

 		const VkPhysicalDeviceSubgroupSizeControlFeaturesEXT&	subgroupSizeControlFeatures		= context.getSubgroupSizeControlFeaturesEXT();
 		const VkPhysicalDeviceSubgroupSizeControlPropertiesEXT&	subgroupSizeControlProperties	= context.getSubgroupSizeControlPropertiesEXT();

 		if (subgroupSizeControlFeatures.subgroupSizeControl == DE_FALSE)
 			TCU_THROW(NotSupportedError, "Device does not support varying subgroup sizes nor required subgroup size");

 		if (subgroupSizeControlFeatures.computeFullSubgroups == DE_FALSE)
 			TCU_THROW(NotSupportedError, "Device does not support full subgroups in compute shaders");

 		if ((subgroupSizeControlProperties.requiredSubgroupSizeStages & caseDef.shaderStage) != caseDef.shaderStage)
 			TCU_THROW(NotSupportedError, "Required subgroup size is not supported for shader stage");
 	}

 	*caseDef.geometryPointSizeSupported = subgroups::isTessellationAndGeometryPointSizeSupported(context);

 	if (isAllRayTracingStages(caseDef.shaderStage))
 	{
 		context.requireDeviceFunctionality("VK_KHR_ray_tracing_pipeline");
 	}

 	subgroups::supportedCheckShader(context, caseDef.shaderStage);
 }

 TestStatus noSSBOtest (Context& context, const CaseDefinition caseDef)
 {
 	const subgroups::SSBOData	inputData	=
 	{
 		subgroups::SSBOData::InitializeNonZero,	//  InputDataInitializeType		initializeType;
 		subgroups::SSBOData::LayoutStd140,		//  InputDataLayoutType			layout;
 		caseDef.format,							//  vk::VkFormat				format;
 		subgroups::maxSupportedSubgroupSize(),	//  vk::VkDeviceSize			numElements;
 	};

 	switch (caseDef.shaderStage)
 	{
 		case VK_SHADER_STAGE_VERTEX_BIT:					return subgroups::makeVertexFrameBufferTest(context, VK_FORMAT_R32_UINT, &inputData, 1, DE_NULL, checkVertexPipelineStages);
 		case VK_SHADER_STAGE_GEOMETRY_BIT:					return subgroups::makeGeometryFrameBufferTest(context, VK_FORMAT_R32_UINT, &inputData, 1, DE_NULL, checkVertexPipelineStages);
 		case VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT:		return subgroups::makeTessellationEvaluationFrameBufferTest(context, VK_FORMAT_R32_UINT, &inputData, 1, DE_NULL, checkVertexPipelineStages, caseDef.shaderStage);
 		case VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT:	return subgroups::makeTessellationEvaluationFrameBufferTest(context, VK_FORMAT_R32_UINT, &inputData, 1, DE_NULL, checkVertexPipelineStages, caseDef.shaderStage);
 		default:											TCU_THROW(InternalError, "Unhandled shader stage");
 	}
 }

 TestStatus test (Context& context, const CaseDefinition caseDef)
 {
 	if (isAllComputeStages(caseDef.shaderStage))
 	{
 		const VkPhysicalDeviceSubgroupSizeControlPropertiesEXT&	subgroupSizeControlProperties	= context.getSubgroupSizeControlPropertiesEXT();
 		TestLog&												log								= context.getTestContext().getLog();

 		subgroups::SSBOData inputData;
 		inputData.format = caseDef.format;
 		inputData.layout = subgroups::SSBOData::LayoutStd430;
 		inputData.numElements = subgroups::maxSupportedSubgroupSize();
 		inputData.initializeType = subgroups::SSBOData::InitializeNonZero;

 		if (caseDef.requiredSubgroupSize == DE_FALSE)
 			return subgroups::makeComputeTest(context, VK_FORMAT_R32_UINT, &inputData, 1, DE_NULL, checkCompute);

 		log << TestLog::Message << "Testing required subgroup size range [" <<  subgroupSizeControlProperties.minSubgroupSize << ", "
 			<< subgroupSizeControlProperties.maxSubgroupSize << "]" << TestLog::EndMessage;

 		// According to the spec, requiredSubgroupSize must be a power-of-two integer.
 		for (deUint32 size = subgroupSizeControlProperties.minSubgroupSize; size <= subgroupSizeControlProperties.maxSubgroupSize; size *= 2)
 		{
 			TestStatus result = subgroups::makeComputeTest(context, VK_FORMAT_R32_UINT, &inputData, 1, DE_NULL, checkCompute, size);
 			if (result.getCode() != QP_TEST_RESULT_PASS)
 			{
 				log << TestLog::Message << "subgroupSize " << size << " failed" << TestLog::EndMessage;
 				return result;
 			}
 		}

 		return TestStatus::pass("OK");
 	}
 	else if (isAllGraphicsStages(caseDef.shaderStage))
 	{
 		const VkShaderStageFlags	stages		= subgroups::getPossibleGraphicsSubgroupStages(context, caseDef.shaderStage);
 		const subgroups::SSBOData	inputData	=
 		{
 			subgroups::SSBOData::InitializeNonZero,		//  InputDataInitializeType		initializeType;
 			subgroups::SSBOData::LayoutStd430,			//  InputDataLayoutType			layout;
 			caseDef.format,								//  vk::VkFormat				format;
 			subgroups::maxSupportedSubgroupSize(),		//  vk::VkDeviceSize			numElements;
 			false,										//  bool						isImage;
 			4u,											//  deUint32					binding;
 			stages,										//  vk::VkShaderStageFlags		stages;
 		};

 		return subgroups::allStages(context, VK_FORMAT_R32_UINT, &inputData, 1, DE_NULL, checkVertexPipelineStages, stages);
 	}
 	else if (isAllRayTracingStages(caseDef.shaderStage))
 	{
 		const VkShaderStageFlags	stages		= subgroups::getPossibleRayTracingSubgroupStages(context, caseDef.shaderStage);
 		const subgroups::SSBOData	inputData	=
 		{
 			subgroups::SSBOData::InitializeNonZero,	//  InputDataInitializeType		initializeType;
 			subgroups::SSBOData::LayoutStd430,		//  InputDataLayoutType			layout;
 			caseDef.format,							//  vk::VkFormat				format;
 			subgroups::maxSupportedSubgroupSize(),	//  vk::VkDeviceSize			numElements;
 			false,									//  bool						isImage;
 			6u,										//  deUint32					binding;
 			stages,									//  vk::VkShaderStageFlags		stages;
 		};

 		return subgroups::allRayTracingStages(context, VK_FORMAT_R32_UINT, &inputData, 1, DE_NULL, checkVertexPipelineStages, stages);
 	}
 	else
 		TCU_THROW(InternalError, "Unknown stage or invalid stage set");
 }
 }

 namespace vkt
 {
 namespace subgroups
 {
 TestCaseGroup* createSubgroupsClusteredTests (TestContext& testCtx)
 {
 	de::MovePtr<TestCaseGroup>	group				(new TestCaseGroup(testCtx, "clustered", "Subgroup clustered category tests"));
 	de::MovePtr<TestCaseGroup>	graphicGroup		(new TestCaseGroup(testCtx, "graphics", "Subgroup clustered category tests: graphics"));
 	de::MovePtr<TestCaseGroup>	computeGroup		(new TestCaseGroup(testCtx, "compute", "Subgroup clustered category tests: compute"));
 	de::MovePtr<TestCaseGroup>	framebufferGroup	(new TestCaseGroup(testCtx, "framebuffer", "Subgroup clustered category tests: framebuffer"));
 	de::MovePtr<TestCaseGroup>	raytracingGroup		(new TestCaseGroup(testCtx, "ray_tracing", "Subgroup clustered category tests: ray tracing"));
 	const VkShaderStageFlags	stages[]			=
 	{
 		VK_SHADER_STAGE_VERTEX_BIT,
 		VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT,
 		VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT,
 		VK_SHADER_STAGE_GEOMETRY_BIT,
 	};
 	const deBool				boolValues[]		=
 	{
 		DE_FALSE,
 		DE_TRUE
 	};

 	{
 		const vector<VkFormat> formats = subgroups::getAllFormats();

 		for (size_t formatIndex = 0; formatIndex < formats.size(); ++formatIndex)
 		{
 			const VkFormat	format		= formats[formatIndex];
 			const string	formatName	= subgroups::getFormatNameForGLSL(format);
 			const bool		isBool		= subgroups::isFormatBool(format);
 			const bool		isFloat		= subgroups::isFormatFloat(format);

 			for (int opTypeIndex = 0; opTypeIndex < OPTYPE_CLUSTERED_LAST; ++opTypeIndex)
 			{
 				const OpType	opType		= static_cast<OpType>(opTypeIndex);
 				const Operator	op			= getOperator(opType);
 				const bool		isBitwiseOp	= (op == OPERATOR_AND || op == OPERATOR_OR || op == OPERATOR_XOR);

 				// Skip float with bitwise category.
 				if (isFloat && isBitwiseOp)
 					continue;

 				// Skip bool when its not the bitwise category.
 				if (isBool && !isBitwiseOp)
 					continue;

 				const string	name	= de::toLower(getOpTypeName(op)) +"_" + formatName;

 				for (size_t groupSizeNdx = 0; groupSizeNdx < DE_LENGTH_OF_ARRAY(boolValues); ++groupSizeNdx)
 				{
 					const deBool			requiredSubgroupSize	= boolValues[groupSizeNdx];
 					const string			testName				= name + (requiredSubgroupSize ? "_requiredsubgroupsize" : "");
 					const CaseDefinition	caseDef					=
 					{
 						op,								//  Operator			op;
 						VK_SHADER_STAGE_COMPUTE_BIT,	//  VkShaderStageFlags	shaderStage;
 						format,							//  VkFormat			format;
 						de::SharedPtr<bool>(new bool),	//  de::SharedPtr<bool>	geometryPointSizeSupported;
 						requiredSubgroupSize,			//  deBool				requiredSubgroupSize;
 					};

 					addFunctionCaseWithPrograms(computeGroup.get(), testName, "", supportedCheck, initPrograms, test, caseDef);
 				}

 				{
 					const CaseDefinition	caseDef		=
 					{
 						op,								//  Operator			op;
 						VK_SHADER_STAGE_ALL_GRAPHICS,	//  VkShaderStageFlags	shaderStage;
 						format,							//  VkFormat			format;
 						de::SharedPtr<bool>(new bool),	//  de::SharedPtr<bool>	geometryPointSizeSupported;
 						DE_FALSE						//  deBool				requiredSubgroupSize;
 					};

 					addFunctionCaseWithPrograms(graphicGroup.get(), name, "", supportedCheck, initPrograms, test, caseDef);
 				}

 				for (int stageIndex = 0; stageIndex < DE_LENGTH_OF_ARRAY(stages); ++stageIndex)
 				{
 					const CaseDefinition	caseDef		=
 					{
 						op,								//  Operator			op;
 						stages[stageIndex],				//  VkShaderStageFlags	shaderStage;
 						format,							//  VkFormat			format;
 						de::SharedPtr<bool>(new bool),	//  de::SharedPtr<bool>	geometryPointSizeSupported;
 						DE_FALSE						//  deBool				requiredSubgroupSize;
 					};
 					const string			testName	= name +"_" + getShaderStageName(caseDef.shaderStage);

 					addFunctionCaseWithPrograms(framebufferGroup.get(), testName, "", supportedCheck, initFrameBufferPrograms, noSSBOtest, caseDef);
 				}
 			}
 		}
 	}

 	{
 		const vector<VkFormat>		formats		= subgroups::getAllRayTracingFormats();

 		for (size_t formatIndex = 0; formatIndex < formats.size(); ++formatIndex)
 		{
 			const VkFormat	format		= formats[formatIndex];
 			const string	formatName	= subgroups::getFormatNameForGLSL(format);
 			const bool		isBool		= subgroups::isFormatBool(format);
 			const bool		isFloat		= subgroups::isFormatFloat(format);

 			for (int opTypeIndex = 0; opTypeIndex < OPTYPE_CLUSTERED_LAST; ++opTypeIndex)
 			{
 				const OpType	opType		= static_cast<OpType>(opTypeIndex);
 				const Operator	op			= getOperator(opType);
 				const bool		isBitwiseOp	= (op == OPERATOR_AND || op == OPERATOR_OR || op == OPERATOR_XOR);

 				// Skip float with bitwise category.
 				if (isFloat && isBitwiseOp)
 					continue;

 				// Skip bool when its not the bitwise category.
 				if (isBool && !isBitwiseOp)
 					continue;

 				{
 					const string			name		= de::toLower(getOpTypeName(op)) +"_" + formatName;
 					const CaseDefinition	caseDef		=
 					{
 						op,								//  Operator			op;
 						SHADER_STAGE_ALL_RAY_TRACING,	//  VkShaderStageFlags	shaderStage;
 						format,							//  VkFormat			format;
 						de::SharedPtr<bool>(new bool),	//  de::SharedPtr<bool>	geometryPointSizeSupported;
 						DE_FALSE						//  deBool				requiredSubgroupSize;
 					};

 					addFunctionCaseWithPrograms(raytracingGroup.get(), name, "", supportedCheck, initPrograms, test, caseDef);
 				}
 			}
 		}
 	}

 	group->addChild(graphicGroup.release());
 	group->addChild(computeGroup.release());
 	group->addChild(framebufferGroup.release());
 	group->addChild(raytracingGroup.release());

 	return group.release();
 }
 } // subgroups
 } // vkt
	/*------------------------------------------------------------------------
	* Vulkan Conformance Tests
	* ------------------------
	*
	* Copyright (c) 2019 The Khronos Group Inc.
	* Copyright (c) 2019 Google Inc.
	* Copyright (c) 2017 Codeplay Software Ltd.
	*
	* 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.
	*
	/ /!
	* \file
	* \brief Subgroups Tests
	/ /--------------------------------------------------------------------*/

	#include "vktSubgroupsClusteredTests.hpp"
	#include "vktSubgroupsScanHelpers.hpp"
	#include "vktSubgroupsTestsUtils.hpp"

	#include <string>
	#include <vector>

	using namespace tcu;
	using namespace std;
	using namespace vk;
	using namespace vkt;

	namespace
	{
	enum OpType
	{
	OPTYPE_CLUSTERED_ADD = 0,
	OPTYPE_CLUSTERED_MUL,
	OPTYPE_CLUSTERED_MIN,
	OPTYPE_CLUSTERED_MAX,
	OPTYPE_CLUSTERED_AND,
	OPTYPE_CLUSTERED_OR,
	OPTYPE_CLUSTERED_XOR,
	OPTYPE_CLUSTERED_LAST
	};

	struct CaseDefinition
	{
	Operator op;
	VkShaderStageFlags shaderStage;
	VkFormat format;
	de::SharedPtr<bool> geometryPointSizeSupported;
	deBool requiredSubgroupSize;
	};

	static Operator getOperator (OpType opType)
	{
	switch (opType)
	{
	case OPTYPE_CLUSTERED_ADD: return OPERATOR_ADD;
	case OPTYPE_CLUSTERED_MUL: return OPERATOR_MUL;
	case OPTYPE_CLUSTERED_MIN: return OPERATOR_MIN;
	case OPTYPE_CLUSTERED_MAX: return OPERATOR_MAX;
	case OPTYPE_CLUSTERED_AND: return OPERATOR_AND;
	case OPTYPE_CLUSTERED_OR: return OPERATOR_OR;
	case OPTYPE_CLUSTERED_XOR: return OPERATOR_XOR;
	default: TCU_THROW(InternalError, "Unsupported op type");
	}
	}

	static bool checkVertexPipelineStages (const void* internalData,
	vector<const void*> datas,
	deUint32 width,
	deUint32)
	{
	DE_UNREF(internalData);

	return subgroups::check(datas, width, 1);
	}

	static bool checkCompute (const void* internalData,
	vector<const void*> datas,
	const deUint32 numWorkgroups[3],
	const deUint32 localSize[3],
	deUint32)
	{
	DE_UNREF(internalData);

	return subgroups::checkCompute(datas, numWorkgroups, localSize, 1);
	}

	string getOpTypeName (Operator op)
	{
	return getScanOpName("subgroupClustered", "", op, SCAN_REDUCE);
	}

	string getExtHeader (CaseDefinition& caseDef)
	{
	return "#extension GL_KHR_shader_subgroup_clustered: enable\n"
	"#extension GL_KHR_shader_subgroup_ballot: enable\n" +
	subgroups::getAdditionalExtensionForFormat(caseDef.format);
	}

	string getTestSrc (CaseDefinition& caseDef)
	{
	const string formatName = subgroups::getFormatNameForGLSL(caseDef.format);
	const string opTypeName = getOpTypeName(caseDef.op);
	const string identity = getIdentity(caseDef.op, caseDef.format);
	const string opOperation = getOpOperation(caseDef.op, caseDef.format, "ref", "data[index]");
	const string compare = getCompare(caseDef.op, caseDef.format, "ref", "op");
	ostringstream bdy;

	bdy << " bool tempResult = true;\n"
	<< " uvec4 mask = subgroupBallot(true);\n";

	for (deUint32 i = 1; i <= subgroups::maxSupportedSubgroupSize(); i *= 2)
	{
	bdy << " {\n"
	<< " const uint clusterSize = " << i << ";\n"
	<< " if (clusterSize <= gl_SubgroupSize)\n"
	<< " {\n"
	<< " " << formatName << " op = "
	<< opTypeName + "(data[gl_SubgroupInvocationID], clusterSize);\n"
	<< " for (uint clusterOffset = 0; clusterOffset < gl_SubgroupSize; clusterOffset += clusterSize)\n"
	<< " {\n"
	<< " " << formatName << " ref = "
	<< identity << ";\n"
	<< " for (uint index = clusterOffset; index < (clusterOffset + clusterSize); index++)\n"
	<< " {\n"
	<< " if (subgroupBallotBitExtract(mask, index))\n"
	<< " {\n"
	<< " ref = " << opOperation << ";\n"
	<< " }\n"
	<< " }\n"
	<< " if ((clusterOffset <= gl_SubgroupInvocationID) && (gl_SubgroupInvocationID < (clusterOffset + clusterSize)))\n"
	<< " {\n"
	<< " if (!" << compare << ")\n"
	<< " {\n"
	<< " tempResult = false;\n"
	<< " }\n"
	<< " }\n"
	<< " }\n"
	<< " }\n"
	<< " }\n"
	<< " tempRes = tempResult ? 1 : 0;\n";
	}

	return bdy.str();
	}

	void initFrameBufferPrograms (SourceCollections& programCollection, CaseDefinition caseDef)
	{
	const ShaderBuildOptions buildOptions (programCollection.usedVulkanVersion, SPIRV_VERSION_1_3, 0u);
	const string extHeader = getExtHeader(caseDef);
	const string testSrc = getTestSrc(caseDef);

	subgroups::initStdFrameBufferPrograms(programCollection, buildOptions, caseDef.shaderStage, caseDef.format, *caseDef.geometryPointSizeSupported, extHeader, testSrc, "");
	}

	void initPrograms (SourceCollections& programCollection, CaseDefinition caseDef)
	{
	const bool spirv14required = isAllRayTracingStages(caseDef.shaderStage);
	const SpirvVersion spirvVersion = spirv14required ? SPIRV_VERSION_1_4 : SPIRV_VERSION_1_3;
	const ShaderBuildOptions buildOptions (programCollection.usedVulkanVersion, spirvVersion, 0u);
	const string extHeader = getExtHeader(caseDef);
	const string testSrc = getTestSrc(caseDef);

	subgroups::initStdPrograms(programCollection, buildOptions, caseDef.shaderStage, caseDef.format, *caseDef.geometryPointSizeSupported, extHeader, testSrc, "");
	}

	void supportedCheck (Context& context, CaseDefinition caseDef)
	{
	if (!subgroups::isSubgroupSupported(context))
	TCU_THROW(NotSupportedError, "Subgroup operations are not supported");

	if (!subgroups::isSubgroupFeatureSupportedForDevice(context, VK_SUBGROUP_FEATURE_CLUSTERED_BIT))
	TCU_THROW(NotSupportedError, "Device does not support subgroup clustered operations");

	if (!subgroups::isFormatSupportedForDevice(context, caseDef.format))
	TCU_THROW(NotSupportedError, "Device does not support the specified format in subgroup operations");

	if (caseDef.requiredSubgroupSize)
	{
	context.requireDeviceFunctionality("VK_EXT_subgroup_size_control");

	const VkPhysicalDeviceSubgroupSizeControlFeaturesEXT& subgroupSizeControlFeatures = context.getSubgroupSizeControlFeaturesEXT();
	const VkPhysicalDeviceSubgroupSizeControlPropertiesEXT& subgroupSizeControlProperties = context.getSubgroupSizeControlPropertiesEXT();

	if (subgroupSizeControlFeatures.subgroupSizeControl == DE_FALSE)
	TCU_THROW(NotSupportedError, "Device does not support varying subgroup sizes nor required subgroup size");

	if (subgroupSizeControlFeatures.computeFullSubgroups == DE_FALSE)
	TCU_THROW(NotSupportedError, "Device does not support full subgroups in compute shaders");

	if ((subgroupSizeControlProperties.requiredSubgroupSizeStages & caseDef.shaderStage) != caseDef.shaderStage)
	TCU_THROW(NotSupportedError, "Required subgroup size is not supported for shader stage");
	}

	*caseDef.geometryPointSizeSupported = subgroups::isTessellationAndGeometryPointSizeSupported(context);

	if (isAllRayTracingStages(caseDef.shaderStage))
	{
	context.requireDeviceFunctionality("VK_KHR_ray_tracing_pipeline");
	}

	subgroups::supportedCheckShader(context, caseDef.shaderStage);
	}

	TestStatus noSSBOtest (Context& context, const CaseDefinition caseDef)
	{
	const subgroups::SSBOData inputData =
	{
	subgroups::SSBOData::InitializeNonZero, // InputDataInitializeType initializeType;
	subgroups::SSBOData::LayoutStd140, // InputDataLayoutType layout;
	caseDef.format, // vk::VkFormat format;
	subgroups::maxSupportedSubgroupSize(), // vk::VkDeviceSize numElements;
	};

	switch (caseDef.shaderStage)
	{
	case VK_SHADER_STAGE_VERTEX_BIT: return subgroups::makeVertexFrameBufferTest(context, VK_FORMAT_R32_UINT, &inputData, 1, DE_NULL, checkVertexPipelineStages);
	case VK_SHADER_STAGE_GEOMETRY_BIT: return subgroups::makeGeometryFrameBufferTest(context, VK_FORMAT_R32_UINT, &inputData, 1, DE_NULL, checkVertexPipelineStages);
	case VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT: return subgroups::makeTessellationEvaluationFrameBufferTest(context, VK_FORMAT_R32_UINT, &inputData, 1, DE_NULL, checkVertexPipelineStages, caseDef.shaderStage);
	case VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT: return subgroups::makeTessellationEvaluationFrameBufferTest(context, VK_FORMAT_R32_UINT, &inputData, 1, DE_NULL, checkVertexPipelineStages, caseDef.shaderStage);
	default: TCU_THROW(InternalError, "Unhandled shader stage");
	}
	}

	TestStatus test (Context& context, const CaseDefinition caseDef)
	{
	if (isAllComputeStages(caseDef.shaderStage))
	{
	const VkPhysicalDeviceSubgroupSizeControlPropertiesEXT& subgroupSizeControlProperties = context.getSubgroupSizeControlPropertiesEXT();
	TestLog& log = context.getTestContext().getLog();

	subgroups::SSBOData inputData;
	inputData.format = caseDef.format;
	inputData.layout = subgroups::SSBOData::LayoutStd430;
	inputData.numElements = subgroups::maxSupportedSubgroupSize();
	inputData.initializeType = subgroups::SSBOData::InitializeNonZero;

	if (caseDef.requiredSubgroupSize == DE_FALSE)
	return subgroups::makeComputeTest(context, VK_FORMAT_R32_UINT, &inputData, 1, DE_NULL, checkCompute);

	log << TestLog::Message << "Testing required subgroup size range [" << subgroupSizeControlProperties.minSubgroupSize << ", "
	<< subgroupSizeControlProperties.maxSubgroupSize << "]" << TestLog::EndMessage;

	// According to the spec, requiredSubgroupSize must be a power-of-two integer.
	for (deUint32 size = subgroupSizeControlProperties.minSubgroupSize; size <= subgroupSizeControlProperties.maxSubgroupSize; size *= 2)
	{
	TestStatus result = subgroups::makeComputeTest(context, VK_FORMAT_R32_UINT, &inputData, 1, DE_NULL, checkCompute, size);
	if (result.getCode() != QP_TEST_RESULT_PASS)
	{
	log << TestLog::Message << "subgroupSize " << size << " failed" << TestLog::EndMessage;
	return result;
	}
	}

	return TestStatus::pass("OK");
	}
	else if (isAllGraphicsStages(caseDef.shaderStage))
	{
	const VkShaderStageFlags stages = subgroups::getPossibleGraphicsSubgroupStages(context, caseDef.shaderStage);
	const subgroups::SSBOData inputData =
	{
	subgroups::SSBOData::InitializeNonZero, // InputDataInitializeType initializeType;
	subgroups::SSBOData::LayoutStd430, // InputDataLayoutType layout;
	caseDef.format, // vk::VkFormat format;
	subgroups::maxSupportedSubgroupSize(), // vk::VkDeviceSize numElements;
	false, // bool isImage;
	4u, // deUint32 binding;
	stages, // vk::VkShaderStageFlags stages;
	};

	return subgroups::allStages(context, VK_FORMAT_R32_UINT, &inputData, 1, DE_NULL, checkVertexPipelineStages, stages);
	}
	else if (isAllRayTracingStages(caseDef.shaderStage))
	{
	const VkShaderStageFlags stages = subgroups::getPossibleRayTracingSubgroupStages(context, caseDef.shaderStage);
	const subgroups::SSBOData inputData =
	{
	subgroups::SSBOData::InitializeNonZero, // InputDataInitializeType initializeType;
	subgroups::SSBOData::LayoutStd430, // InputDataLayoutType layout;
	caseDef.format, // vk::VkFormat format;
	subgroups::maxSupportedSubgroupSize(), // vk::VkDeviceSize numElements;
	false, // bool isImage;
	6u, // deUint32 binding;
	stages, // vk::VkShaderStageFlags stages;
	};

	return subgroups::allRayTracingStages(context, VK_FORMAT_R32_UINT, &inputData, 1, DE_NULL, checkVertexPipelineStages, stages);
	}
	else
	TCU_THROW(InternalError, "Unknown stage or invalid stage set");
	}
	}

	namespace vkt
	{
	namespace subgroups
	{
	TestCaseGroup* createSubgroupsClusteredTests (TestContext& testCtx)
	{
	de::MovePtr<TestCaseGroup> group (new TestCaseGroup(testCtx, "clustered", "Subgroup clustered category tests"));
	de::MovePtr<TestCaseGroup> graphicGroup (new TestCaseGroup(testCtx, "graphics", "Subgroup clustered category tests: graphics"));
	de::MovePtr<TestCaseGroup> computeGroup (new TestCaseGroup(testCtx, "compute", "Subgroup clustered category tests: compute"));
	de::MovePtr<TestCaseGroup> framebufferGroup (new TestCaseGroup(testCtx, "framebuffer", "Subgroup clustered category tests: framebuffer"));
	de::MovePtr<TestCaseGroup> raytracingGroup (new TestCaseGroup(testCtx, "ray_tracing", "Subgroup clustered category tests: ray tracing"));
	const VkShaderStageFlags stages[] =
	{
	VK_SHADER_STAGE_VERTEX_BIT,
	VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT,
	VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT,
	VK_SHADER_STAGE_GEOMETRY_BIT,
	};
	const deBool boolValues[] =
	{
	DE_FALSE,
	DE_TRUE
	};

	{
	const vector<VkFormat> formats = subgroups::getAllFormats();

	for (size_t formatIndex = 0; formatIndex < formats.size(); ++formatIndex)
	{
	const VkFormat format = formats[formatIndex];
	const string formatName = subgroups::getFormatNameForGLSL(format);
	const bool isBool = subgroups::isFormatBool(format);
	const bool isFloat = subgroups::isFormatFloat(format);

	for (int opTypeIndex = 0; opTypeIndex < OPTYPE_CLUSTERED_LAST; ++opTypeIndex)
	{
	const OpType opType = static_cast<OpType>(opTypeIndex);
	const Operator op = getOperator(opType);
	const bool isBitwiseOp = (op == OPERATOR_AND \|\| op == OPERATOR_OR \|\| op == OPERATOR_XOR);

	// Skip float with bitwise category.
	if (isFloat && isBitwiseOp)
	continue;

	// Skip bool when its not the bitwise category.
	if (isBool && !isBitwiseOp)
	continue;

	const string name = de::toLower(getOpTypeName(op)) +"_" + formatName;

	for (size_t groupSizeNdx = 0; groupSizeNdx < DE_LENGTH_OF_ARRAY(boolValues); ++groupSizeNdx)
	{
	const deBool requiredSubgroupSize = boolValues[groupSizeNdx];
	const string testName = name + (requiredSubgroupSize ? "_requiredsubgroupsize" : "");
	const CaseDefinition caseDef =
	{
	op, // Operator op;
	VK_SHADER_STAGE_COMPUTE_BIT, // VkShaderStageFlags shaderStage;
	format, // VkFormat format;
	de::SharedPtr<bool>(new bool), // de::SharedPtr<bool> geometryPointSizeSupported;
	requiredSubgroupSize, // deBool requiredSubgroupSize;
	};

	addFunctionCaseWithPrograms(computeGroup.get(), testName, "", supportedCheck, initPrograms, test, caseDef);
	}

	{
	const CaseDefinition caseDef =
	{
	op, // Operator op;
	VK_SHADER_STAGE_ALL_GRAPHICS, // VkShaderStageFlags shaderStage;
	format, // VkFormat format;
	de::SharedPtr<bool>(new bool), // de::SharedPtr<bool> geometryPointSizeSupported;
	DE_FALSE // deBool requiredSubgroupSize;
	};

	addFunctionCaseWithPrograms(graphicGroup.get(), name, "", supportedCheck, initPrograms, test, caseDef);
	}

	for (int stageIndex = 0; stageIndex < DE_LENGTH_OF_ARRAY(stages); ++stageIndex)
	{
	const CaseDefinition caseDef =
	{
	op, // Operator op;
	stages[stageIndex], // VkShaderStageFlags shaderStage;
	format, // VkFormat format;
	de::SharedPtr<bool>(new bool), // de::SharedPtr<bool> geometryPointSizeSupported;
	DE_FALSE // deBool requiredSubgroupSize;
	};
	const string testName = name +"_" + getShaderStageName(caseDef.shaderStage);

	addFunctionCaseWithPrograms(framebufferGroup.get(), testName, "", supportedCheck, initFrameBufferPrograms, noSSBOtest, caseDef);
	}
	}
	}
	}

	{
	const vector<VkFormat> formats = subgroups::getAllRayTracingFormats();

	for (size_t formatIndex = 0; formatIndex < formats.size(); ++formatIndex)
	{
	const VkFormat format = formats[formatIndex];
	const string formatName = subgroups::getFormatNameForGLSL(format);
	const bool isBool = subgroups::isFormatBool(format);
	const bool isFloat = subgroups::isFormatFloat(format);

	for (int opTypeIndex = 0; opTypeIndex < OPTYPE_CLUSTERED_LAST; ++opTypeIndex)
	{
	const OpType opType = static_cast<OpType>(opTypeIndex);
	const Operator op = getOperator(opType);
	const bool isBitwiseOp = (op == OPERATOR_AND \|\| op == OPERATOR_OR \|\| op == OPERATOR_XOR);

	// Skip float with bitwise category.
	if (isFloat && isBitwiseOp)
	continue;

	// Skip bool when its not the bitwise category.
	if (isBool && !isBitwiseOp)
	continue;

	{
	const string name = de::toLower(getOpTypeName(op)) +"_" + formatName;
	const CaseDefinition caseDef =
	{
	op, // Operator op;
	SHADER_STAGE_ALL_RAY_TRACING, // VkShaderStageFlags shaderStage;
	format, // VkFormat format;
	de::SharedPtr<bool>(new bool), // de::SharedPtr<bool> geometryPointSizeSupported;
	DE_FALSE // deBool requiredSubgroupSize;
	};

	addFunctionCaseWithPrograms(raytracingGroup.get(), name, "", supportedCheck, initPrograms, test, caseDef);
	}
	}
	}
	}

	group->addChild(graphicGroup.release());
	group->addChild(computeGroup.release());
	group->addChild(framebufferGroup.release());
	group->addChild(raytracingGroup.release());

	return group.release();
	}
	} // subgroups
	} // vkt