external/vulkancts/modules/vulkan/spirv_assembly/vktSpvAsmGraphicsShaderTestUtil.cpp

/*-------------------------------------------------------------------------
 * Vulkan Conformance Tests
 * ------------------------
 *
 * Copyright (c) 2017 Google Inc.
 *
 * 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 Graphics pipeline for SPIR-V assembly tests
 *//*--------------------------------------------------------------------*/

#include "vktSpvAsmGraphicsShaderTestUtil.hpp"

#include "tcuFloat.hpp"
#include "tcuStringTemplate.hpp"
#include "tcuTextureUtil.hpp"

#include "vkDefs.hpp"
#include "vkMemUtil.hpp"
#include "vkPlatform.hpp"
#include "vkQueryUtil.hpp"
#include "vkRefUtil.hpp"
#include "vkTypeUtil.hpp"
#include "vkImageUtil.hpp"
#include "vkCmdUtil.hpp"

#include "deRandom.hpp"

namespace vkt
{
namespace SpirVAssembly
{

using namespace vk;
using std::map;
using std::string;
using std::vector;
using tcu::Float16;
using tcu::Float32;
using tcu::Float64;
using tcu::IVec3;
using tcu::IVec4;
using tcu::RGBA;
using tcu::TestLog;
using tcu::TestStatus;
using tcu::Vec4;
using de::UniquePtr;
using tcu::StringTemplate;
using tcu::Vec4;

deUint32 IFDataType::getElementNumBytes (void) const
{
	if (elementType < NUMBERTYPE_END32)
		return 4;

	if (elementType < NUMBERTYPE_END16)
		return 2;

	return 8;
}

VkFormat IFDataType::getVkFormat (void) const
{
	if (numElements == 1)
	{
		switch (elementType)
		{
			case NUMBERTYPE_FLOAT64:	return VK_FORMAT_R64_SFLOAT;
			case NUMBERTYPE_FLOAT32:	return VK_FORMAT_R32_SFLOAT;
			case NUMBERTYPE_INT32:		return VK_FORMAT_R32_SINT;
			case NUMBERTYPE_UINT32:		return VK_FORMAT_R32_UINT;
			case NUMBERTYPE_FLOAT16:	return VK_FORMAT_R16_SFLOAT;
			case NUMBERTYPE_INT16:		return VK_FORMAT_R16_SINT;
			case NUMBERTYPE_UINT16:		return VK_FORMAT_R16_UINT;
			default:					break;
		}
	}
	else if (numElements == 2)
	{
		switch (elementType)
		{
			case NUMBERTYPE_FLOAT64:	return VK_FORMAT_R64G64_SFLOAT;
			case NUMBERTYPE_FLOAT32:	return VK_FORMAT_R32G32_SFLOAT;
			case NUMBERTYPE_INT32:		return VK_FORMAT_R32G32_SINT;
			case NUMBERTYPE_UINT32:		return VK_FORMAT_R32G32_UINT;
			case NUMBERTYPE_FLOAT16:	return VK_FORMAT_R16G16_SFLOAT;
			case NUMBERTYPE_INT16:		return VK_FORMAT_R16G16_SINT;
			case NUMBERTYPE_UINT16:		return VK_FORMAT_R16G16_UINT;
			default:					break;
		}
	}
	else if (numElements == 3)
	{
		switch (elementType)
		{
			case NUMBERTYPE_FLOAT64:	return VK_FORMAT_R64G64B64_SFLOAT;
			case NUMBERTYPE_FLOAT32:	return VK_FORMAT_R32G32B32_SFLOAT;
			case NUMBERTYPE_INT32:		return VK_FORMAT_R32G32B32_SINT;
			case NUMBERTYPE_UINT32:		return VK_FORMAT_R32G32B32_UINT;
			case NUMBERTYPE_FLOAT16:	return VK_FORMAT_R16G16B16_SFLOAT;
			case NUMBERTYPE_INT16:		return VK_FORMAT_R16G16B16_SINT;
			case NUMBERTYPE_UINT16:		return VK_FORMAT_R16G16B16_UINT;
			default:					break;
		}
	}
	else if (numElements == 4)
	{
		switch (elementType)
		{
			case NUMBERTYPE_FLOAT64:	return VK_FORMAT_R64G64B64A64_SFLOAT;
			case NUMBERTYPE_FLOAT32:	return VK_FORMAT_R32G32B32A32_SFLOAT;
			case NUMBERTYPE_INT32:		return VK_FORMAT_R32G32B32A32_SINT;
			case NUMBERTYPE_UINT32:		return VK_FORMAT_R32G32B32A32_UINT;
			case NUMBERTYPE_FLOAT16:	return VK_FORMAT_R16G16B16A16_SFLOAT;
			case NUMBERTYPE_INT16:		return VK_FORMAT_R16G16B16A16_SINT;
			case NUMBERTYPE_UINT16:		return VK_FORMAT_R16G16B16A16_UINT;
			default:					break;
		}
	}

	DE_ASSERT(false);
	return VK_FORMAT_UNDEFINED;
}

tcu::TextureFormat IFDataType::getTextureFormat (void) const
{
	tcu::TextureFormat::ChannelType		ct	= tcu::TextureFormat::CHANNELTYPE_LAST;
	tcu::TextureFormat::ChannelOrder	co	= tcu::TextureFormat::CHANNELORDER_LAST;

	switch (elementType)
	{
		case NUMBERTYPE_FLOAT64:	ct = tcu::TextureFormat::FLOAT64;			break;
		case NUMBERTYPE_FLOAT32:	ct = tcu::TextureFormat::FLOAT;				break;
		case NUMBERTYPE_INT32:		ct = tcu::TextureFormat::SIGNED_INT32;		break;
		case NUMBERTYPE_UINT32:		ct = tcu::TextureFormat::UNSIGNED_INT32;	break;
		case NUMBERTYPE_FLOAT16:	ct = tcu::TextureFormat::HALF_FLOAT;		break;
		case NUMBERTYPE_INT16:		ct = tcu::TextureFormat::SIGNED_INT16;		break;
		case NUMBERTYPE_UINT16:		ct = tcu::TextureFormat::UNSIGNED_INT16;	break;
		default:					DE_ASSERT(false);
	}

	switch (numElements)
	{
		case 1:				co = tcu::TextureFormat::R;					break;
		case 2:				co = tcu::TextureFormat::RG;				break;
		case 3:				co = tcu::TextureFormat::RGB;				break;
		case 4:				co = tcu::TextureFormat::RGBA;				break;
		default:			DE_ASSERT(false);
	}

	return tcu::TextureFormat(co, ct);
}

string IFDataType::str (void) const
{
	string	ret;

	switch (elementType)
	{
		case NUMBERTYPE_FLOAT64:	ret = "f64"; break;
		case NUMBERTYPE_FLOAT32:	ret = "f32"; break;
		case NUMBERTYPE_INT32:		ret = "i32"; break;
		case NUMBERTYPE_UINT32:		ret = "u32"; break;
		case NUMBERTYPE_FLOAT16:	ret = "f16"; break;
		case NUMBERTYPE_INT16:		ret = "i16"; break;
		case NUMBERTYPE_UINT16:		ret = "u16"; break;
		default:					DE_ASSERT(false);
	}

	if (numElements == 1)
		return ret;

	return string("v") + numberToString(numElements) + ret;
}

VkBufferUsageFlagBits getMatchingBufferUsageFlagBit (VkDescriptorType dType)
{
	switch (dType)
	{
		case VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER:			return VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT;
		case VK_DESCRIPTOR_TYPE_STORAGE_BUFFER:			return VK_BUFFER_USAGE_STORAGE_BUFFER_BIT;
		case VK_DESCRIPTOR_TYPE_STORAGE_IMAGE:			return VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
		case VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE:			return VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
		case VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER:	return VK_BUFFER_USAGE_TRANSFER_SRC_BIT;
		default:										DE_ASSERT(0 && "not implemented");
	}
	return (VkBufferUsageFlagBits)0;
}

VkImageUsageFlags getMatchingImageUsageFlags (VkDescriptorType dType)
{
	switch (dType)
	{
		case VK_DESCRIPTOR_TYPE_STORAGE_IMAGE:			return VK_IMAGE_USAGE_STORAGE_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT;
		case VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE:			return VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT;
		case VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER:	return VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT;
		default:										DE_FATAL("Not implemented");
	}
	return (VkImageUsageFlags)0;
}

static void requireFormatUsageSupport (const InstanceInterface& vki, VkPhysicalDevice physicalDevice, VkFormat format, VkImageTiling imageTiling, VkImageUsageFlags requiredUsageFlags)
{
	VkFormatProperties		properties;
	VkFormatFeatureFlags	tilingFeatures	= 0;

	vki.getPhysicalDeviceFormatProperties(physicalDevice, format, &properties);

	switch (imageTiling)
	{
		case VK_IMAGE_TILING_LINEAR:
			tilingFeatures = properties.linearTilingFeatures;
			break;

		case VK_IMAGE_TILING_OPTIMAL:
			tilingFeatures = properties.optimalTilingFeatures;
			break;

		default:
			DE_ASSERT(false);
			break;
	}

	if ((requiredUsageFlags & VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT) != 0)
	{
		if ((tilingFeatures & VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BIT) == 0)
			TCU_THROW(NotSupportedError, "Image format cannot be used as color attachment");
		requiredUsageFlags ^= VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT;
	}


	if ((requiredUsageFlags & VK_IMAGE_USAGE_TRANSFER_SRC_BIT) != 0)
	{
		if ((tilingFeatures & VK_FORMAT_FEATURE_TRANSFER_SRC_BIT_KHR) == 0)
			TCU_THROW(NotSupportedError, "Image format cannot be used as transfer source");
		requiredUsageFlags ^= VK_IMAGE_USAGE_TRANSFER_SRC_BIT;
	}


	DE_ASSERT(!requiredUsageFlags && "checking other image usage bits not supported yet");
}

InstanceContext::InstanceContext (const RGBA						(&inputs)[4],
								  const RGBA						(&outputs)[4],
								  const map<string, string>&		testCodeFragments_,
								  const StageToSpecConstantMap&		specConstants_,
								  const PushConstants&				pushConsants_,
								  const GraphicsResources&			resources_,
								  const GraphicsInterfaces&			interfaces_,
								  const vector<string>&				extensions_,
								  VulkanFeatures					vulkanFeatures_,
								  VkShaderStageFlags				customizedStages_)
	: testCodeFragments				(testCodeFragments_)
	, specConstants					(specConstants_)
	, hasTessellation				(false)
	, requiredStages				(static_cast<VkShaderStageFlagBits>(0))
	, requiredDeviceExtensions		(extensions_)
	, requestedFeatures				(vulkanFeatures_)
	, pushConstants					(pushConsants_)
	, customizedStages				(customizedStages_)
	, resources						(resources_)
	, interfaces					(interfaces_)
	, failResult					(QP_TEST_RESULT_FAIL)
	, failMessageTemplate			("${reason}")
	, renderFullSquare				(false)
{
	inputColors[0]		= inputs[0];
	inputColors[1]		= inputs[1];
	inputColors[2]		= inputs[2];
	inputColors[3]		= inputs[3];

	outputColors[0]		= outputs[0];
	outputColors[1]		= outputs[1];
	outputColors[2]		= outputs[2];
	outputColors[3]		= outputs[3];
}

InstanceContext::InstanceContext (const InstanceContext& other)
	: moduleMap						(other.moduleMap)
	, testCodeFragments				(other.testCodeFragments)
	, specConstants					(other.specConstants)
	, hasTessellation				(other.hasTessellation)
	, requiredStages				(other.requiredStages)
	, requiredDeviceExtensions		(other.requiredDeviceExtensions)
	, requestedFeatures				(other.requestedFeatures)
	, pushConstants					(other.pushConstants)
	, customizedStages				(other.customizedStages)
	, resources						(other.resources)
	, interfaces					(other.interfaces)
	, failResult					(other.failResult)
	, failMessageTemplate			(other.failMessageTemplate)
	, renderFullSquare				(other.renderFullSquare)
{
	inputColors[0]		= other.inputColors[0];
	inputColors[1]		= other.inputColors[1];
	inputColors[2]		= other.inputColors[2];
	inputColors[3]		= other.inputColors[3];

	outputColors[0]		= other.outputColors[0];
	outputColors[1]		= other.outputColors[1];
	outputColors[2]		= other.outputColors[2];
	outputColors[3]		= other.outputColors[3];
}

string InstanceContext::getSpecializedFailMessage (const string& failureReason)
{
	map<string, string>		parameters;
	parameters["reason"]	= failureReason;
	return StringTemplate(failMessageTemplate).specialize(parameters);
}

ShaderElement::ShaderElement (const string&				moduleName_,
							  const string&				entryPoint_,
							  VkShaderStageFlagBits		shaderStage_)
		: moduleName(moduleName_)
		, entryName(entryPoint_)
		, stage(shaderStage_)
{
}

void getDefaultColors (RGBA (&colors)[4])
{
	colors[0] = RGBA::white();
	colors[1] = RGBA::red();
	colors[2] = RGBA::green();
	colors[3] = RGBA::blue();
}

void getHalfColorsFullAlpha (RGBA (&colors)[4])
{
	colors[0] = RGBA(127, 127, 127, 255);
	colors[1] = RGBA(127, 0,   0,	255);
	colors[2] = RGBA(0,	  127, 0,	255);
	colors[3] = RGBA(0,	  0,   127, 255);
}

void getInvertedDefaultColors (RGBA (&colors)[4])
{
	colors[0] = RGBA(0,		0,		0,		255);
	colors[1] = RGBA(0,		255,	255,	255);
	colors[2] = RGBA(255,	0,		255,	255);
	colors[3] = RGBA(255,	255,	0,		255);
}

// For the current InstanceContext, constructs the required modules and shader stage create infos.
void createPipelineShaderStages (const DeviceInterface&						vk,
								 const VkDevice								vkDevice,
								 InstanceContext&							instance,
								 Context&									context,
								 vector<ModuleHandleSp>&					modules,
								 vector<VkPipelineShaderStageCreateInfo>&	createInfos)
{
	for (ModuleMap::const_iterator moduleNdx = instance.moduleMap.begin(); moduleNdx != instance.moduleMap.end(); ++moduleNdx)
	{
		const ModuleHandleSp mod(new Unique<VkShaderModule>(createShaderModule(vk, vkDevice, context.getBinaryCollection().get(moduleNdx->first), 0)));
		modules.push_back(ModuleHandleSp(mod));
		for (vector<EntryToStage>::const_iterator shaderNdx = moduleNdx->second.begin(); shaderNdx != moduleNdx->second.end(); ++shaderNdx)
		{
			const EntryToStage&						stage			= *shaderNdx;
			const VkPipelineShaderStageCreateInfo	shaderParam		=
			{
				VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO,	//	VkStructureType			sType;
				DE_NULL,												//	const void*				pNext;
				(VkPipelineShaderStageCreateFlags)0,
				stage.second,											//	VkShaderStageFlagBits	stage;
				**modules.back(),										//	VkShaderModule			module;
				stage.first.c_str(),									//	const char*				pName;
				(const VkSpecializationInfo*)DE_NULL,
			};
			createInfos.push_back(shaderParam);
		}
	}
}

// Creates vertex-shader assembly by specializing a boilerplate StringTemplate
// on fragments, which must (at least) map "testfun" to an OpFunction definition
// for %test_code that takes and returns a %v4f32.  Boilerplate IDs are prefixed
// with "BP_" to avoid collisions with fragments.
//
// It corresponds roughly to this GLSL:
//;
// layout(location = 0) in vec4 position;
// layout(location = 1) in vec4 color;
// layout(location = 1) out highp vec4 vtxColor;
// void main (void) { gl_Position = position; vtxColor = test_func(color); }
string makeVertexShaderAssembly (const map<string, string>& fragments)
{
	static const char vertexShaderBoilerplate[] =
		"OpCapability Shader\n"
		"${capability:opt}\n"
		"${extension:opt}\n"
		"OpMemoryModel Logical GLSL450\n"
		"OpEntryPoint Vertex %BP_main \"main\" %BP_stream %BP_position %BP_vtx_color %BP_color %BP_gl_VertexIndex %BP_gl_InstanceIndex ${IF_entrypoint:opt} \n"
		"${execution_mode:opt}\n"
		"${debug:opt}\n"
		"${moduleprocessed:opt}\n"
		"OpMemberDecorate %BP_gl_PerVertex 0 BuiltIn Position\n"
		"OpMemberDecorate %BP_gl_PerVertex 1 BuiltIn PointSize\n"
		"OpMemberDecorate %BP_gl_PerVertex 2 BuiltIn ClipDistance\n"
		"OpMemberDecorate %BP_gl_PerVertex 3 BuiltIn CullDistance\n"
		"OpDecorate %BP_gl_PerVertex Block\n"
		"OpDecorate %BP_position Location 0\n"
		"OpDecorate %BP_vtx_color Location 1\n"
		"OpDecorate %BP_color Location 1\n"
		"OpDecorate %BP_gl_VertexIndex BuiltIn VertexIndex\n"
		"OpDecorate %BP_gl_InstanceIndex BuiltIn InstanceIndex\n"
		"${IF_decoration:opt}\n"
		"${decoration:opt}\n"
		SPIRV_ASSEMBLY_TYPES
		SPIRV_ASSEMBLY_CONSTANTS
		SPIRV_ASSEMBLY_ARRAYS
		"%BP_gl_PerVertex = OpTypeStruct %v4f32 %f32 %a1f32 %a1f32\n"
		"%BP_op_gl_PerVertex = OpTypePointer Output %BP_gl_PerVertex\n"
		"%BP_stream = OpVariable %BP_op_gl_PerVertex Output\n"
		"%BP_position = OpVariable %ip_v4f32 Input\n"
		"%BP_vtx_color = OpVariable %op_v4f32 Output\n"
		"%BP_color = OpVariable %ip_v4f32 Input\n"
		"%BP_gl_VertexIndex = OpVariable %ip_i32 Input\n"
		"%BP_gl_InstanceIndex = OpVariable %ip_i32 Input\n"
		"${pre_main:opt}\n"
		"${IF_variable:opt}\n"
		"%BP_main = OpFunction %void None %fun\n"
		"%BP_label = OpLabel\n"
		"${IF_carryforward:opt}\n"
		"${post_interface_op_vert:opt}\n"
		"%BP_pos = OpLoad %v4f32 %BP_position\n"
		"%BP_gl_pos = OpAccessChain %op_v4f32 %BP_stream %c_i32_0\n"
		"OpStore %BP_gl_pos %BP_pos\n"
		"%BP_col = OpLoad %v4f32 %BP_color\n"
		"%BP_col_transformed = OpFunctionCall %v4f32 %test_code %BP_col\n"
		"OpStore %BP_vtx_color %BP_col_transformed\n"
		"OpReturn\n"
		"OpFunctionEnd\n"
		"${interface_op_func:opt}\n"

		"%isUniqueIdZero = OpFunction %bool None %bool_function\n"
		"%getId_label = OpLabel\n"
		"%vert_id = OpLoad %i32 %BP_gl_VertexIndex\n"
		"%is_id_0 = OpIEqual %bool %vert_id %c_i32_0\n"
		"OpReturnValue %is_id_0\n"
		"OpFunctionEnd\n"

		"${testfun}\n";
	return tcu::StringTemplate(vertexShaderBoilerplate).specialize(fragments);
}

// Creates tess-control-shader assembly by specializing a boilerplate
// StringTemplate on fragments, which must (at least) map "testfun" to an
// OpFunction definition for %test_code that takes and returns a %v4f32.
// Boilerplate IDs are prefixed with "BP_" to avoid collisions with fragments.
//
// It roughly corresponds to the following GLSL.
//
// #version 450
// layout(vertices = 3) out;
// layout(location = 1) in vec4 in_color[];
// layout(location = 1) out vec4 out_color[];
//
// void main() {
//   out_color[gl_InvocationID] = testfun(in_color[gl_InvocationID]);
//   gl_out[gl_InvocationID].gl_Position = gl_in[gl_InvocationID].gl_Position;
//   if (gl_InvocationID == 0) {
//     gl_TessLevelOuter[0] = 1.0;
//     gl_TessLevelOuter[1] = 1.0;
//     gl_TessLevelOuter[2] = 1.0;
//     gl_TessLevelInner[0] = 1.0;
//   }
// }
string makeTessControlShaderAssembly (const map<string, string>& fragments)
{
	static const char tessControlShaderBoilerplate[] =
		"OpCapability Tessellation\n"
		"${capability:opt}\n"
		"${extension:opt}\n"
		"OpMemoryModel Logical GLSL450\n"
		"OpEntryPoint TessellationControl %BP_main \"main\" %BP_out_color %BP_gl_InvocationID %BP_gl_PrimitiveID %BP_in_color %BP_gl_out %BP_gl_in %BP_gl_TessLevelOuter %BP_gl_TessLevelInner ${IF_entrypoint:opt} \n"
		"OpExecutionMode %BP_main OutputVertices 3\n"
		"${execution_mode:opt}\n"
		"${debug:opt}\n"
		"${moduleprocessed:opt}\n"
		"OpDecorate %BP_out_color Location 1\n"
		"OpDecorate %BP_gl_InvocationID BuiltIn InvocationId\n"
		"OpDecorate %BP_gl_PrimitiveID BuiltIn PrimitiveId\n"
		"OpDecorate %BP_in_color Location 1\n"
		"OpMemberDecorate %BP_gl_PerVertex 0 BuiltIn Position\n"
		"OpMemberDecorate %BP_gl_PerVertex 1 BuiltIn PointSize\n"
		"OpMemberDecorate %BP_gl_PerVertex 2 BuiltIn ClipDistance\n"
		"OpMemberDecorate %BP_gl_PerVertex 3 BuiltIn CullDistance\n"
		"OpDecorate %BP_gl_PerVertex Block\n"
		"OpMemberDecorate %BP_gl_PVOut 0 BuiltIn Position\n"
		"OpMemberDecorate %BP_gl_PVOut 1 BuiltIn PointSize\n"
		"OpMemberDecorate %BP_gl_PVOut 2 BuiltIn ClipDistance\n"
		"OpMemberDecorate %BP_gl_PVOut 3 BuiltIn CullDistance\n"
		"OpDecorate %BP_gl_PVOut Block\n"
		"OpDecorate %BP_gl_TessLevelOuter Patch\n"
		"OpDecorate %BP_gl_TessLevelOuter BuiltIn TessLevelOuter\n"
		"OpDecorate %BP_gl_TessLevelInner Patch\n"
		"OpDecorate %BP_gl_TessLevelInner BuiltIn TessLevelInner\n"
		"${IF_decoration:opt}\n"
		"${decoration:opt}\n"
		"${decoration_tessc:opt}\n"
		SPIRV_ASSEMBLY_TYPES
		SPIRV_ASSEMBLY_CONSTANTS
		SPIRV_ASSEMBLY_ARRAYS
		"%BP_out_color = OpVariable %op_a3v4f32 Output\n"
		"%BP_gl_InvocationID = OpVariable %ip_i32 Input\n"
		"%BP_gl_PrimitiveID = OpVariable %ip_i32 Input\n"
		"%BP_in_color = OpVariable %ip_a32v4f32 Input\n"
		"%BP_gl_PerVertex = OpTypeStruct %v4f32 %f32 %a1f32 %a1f32\n"
		"%BP_a3_gl_PerVertex = OpTypeArray %BP_gl_PerVertex %c_u32_3\n"
		"%BP_op_a3_gl_PerVertex = OpTypePointer Output %BP_a3_gl_PerVertex\n"
		"%BP_gl_out = OpVariable %BP_op_a3_gl_PerVertex Output\n"
		"%BP_gl_PVOut = OpTypeStruct %v4f32 %f32 %a1f32 %a1f32\n"
		"%BP_a32_gl_PVOut = OpTypeArray %BP_gl_PVOut %c_u32_32\n"
		"%BP_ip_a32_gl_PVOut = OpTypePointer Input %BP_a32_gl_PVOut\n"
		"%BP_gl_in = OpVariable %BP_ip_a32_gl_PVOut Input\n"
		"%BP_gl_TessLevelOuter = OpVariable %op_a4f32 Output\n"
		"%BP_gl_TessLevelInner = OpVariable %op_a2f32 Output\n"
		"${pre_main:opt}\n"
		"${IF_variable:opt}\n"

		"%BP_main = OpFunction %void None %fun\n"
		"%BP_label = OpLabel\n"
		"%BP_gl_Invoc = OpLoad %i32 %BP_gl_InvocationID\n"
		"${IF_carryforward:opt}\n"
		"${post_interface_op_tessc:opt}\n"
		"%BP_in_col_loc = OpAccessChain %ip_v4f32 %BP_in_color %BP_gl_Invoc\n"
		"%BP_out_col_loc = OpAccessChain %op_v4f32 %BP_out_color %BP_gl_Invoc\n"
		"%BP_in_col_val = OpLoad %v4f32 %BP_in_col_loc\n"
		"%BP_clr_transformed = OpFunctionCall %v4f32 %test_code %BP_in_col_val\n"
		"OpStore %BP_out_col_loc %BP_clr_transformed\n"

		"%BP_in_pos_loc = OpAccessChain %ip_v4f32 %BP_gl_in %BP_gl_Invoc %c_i32_0\n"
		"%BP_out_pos_loc = OpAccessChain %op_v4f32 %BP_gl_out %BP_gl_Invoc %c_i32_0\n"
		"%BP_in_pos_val = OpLoad %v4f32 %BP_in_pos_loc\n"
		"OpStore %BP_out_pos_loc %BP_in_pos_val\n"

		"%BP_cmp = OpIEqual %bool %BP_gl_Invoc %c_i32_0\n"
		"OpSelectionMerge %BP_merge_label None\n"
		"OpBranchConditional %BP_cmp %BP_if_label %BP_merge_label\n"
		"%BP_if_label = OpLabel\n"
		"%BP_gl_TessLevelOuterPos_0 = OpAccessChain %op_f32 %BP_gl_TessLevelOuter %c_i32_0\n"
		"%BP_gl_TessLevelOuterPos_1 = OpAccessChain %op_f32 %BP_gl_TessLevelOuter %c_i32_1\n"
		"%BP_gl_TessLevelOuterPos_2 = OpAccessChain %op_f32 %BP_gl_TessLevelOuter %c_i32_2\n"
		"%BP_gl_TessLevelInnerPos_0 = OpAccessChain %op_f32 %BP_gl_TessLevelInner %c_i32_0\n"
		"OpStore %BP_gl_TessLevelOuterPos_0 %c_f32_1\n"
		"OpStore %BP_gl_TessLevelOuterPos_1 %c_f32_1\n"
		"OpStore %BP_gl_TessLevelOuterPos_2 %c_f32_1\n"
		"OpStore %BP_gl_TessLevelInnerPos_0 %c_f32_1\n"
		"OpBranch %BP_merge_label\n"
		"%BP_merge_label = OpLabel\n"
		"OpReturn\n"
		"OpFunctionEnd\n"
		"${interface_op_func:opt}\n"

		"%isUniqueIdZero = OpFunction %bool None %bool_function\n"
		"%getId_label = OpLabel\n"
		"%invocation_id = OpLoad %i32 %BP_gl_InvocationID\n"
		"%primitive_id = OpLoad %i32 %BP_gl_PrimitiveID\n"
		"%is_invocation_0 = OpIEqual %bool %invocation_id %c_i32_0\n"
		"%is_primitive_0 = OpIEqual %bool %primitive_id %c_i32_0\n"
		"%is_id_0 = OpLogicalAnd %bool %is_invocation_0 %is_primitive_0\n"
		"OpReturnValue %is_id_0\n"
		"OpFunctionEnd\n"

		"${testfun}\n";
	return tcu::StringTemplate(tessControlShaderBoilerplate).specialize(fragments);
}

// Creates tess-evaluation-shader assembly by specializing a boilerplate
// StringTemplate on fragments, which must (at least) map "testfun" to an
// OpFunction definition for %test_code that takes and returns a %v4f32.
// Boilerplate IDs are prefixed with "BP_" to avoid collisions with fragments.
//
// It roughly corresponds to the following glsl.
//
// #version 450
//
// layout(triangles, equal_spacing, ccw) in;
// layout(location = 1) in vec4 in_color[];
// layout(location = 1) out vec4 out_color;
//
// #define interpolate(val)
//   vec4(gl_TessCoord.x) * val[0] + vec4(gl_TessCoord.y) * val[1] +
//          vec4(gl_TessCoord.z) * val[2]
//
// void main() {
//   gl_Position = vec4(gl_TessCoord.x) * gl_in[0].gl_Position +
//                  vec4(gl_TessCoord.y) * gl_in[1].gl_Position +
//                  vec4(gl_TessCoord.z) * gl_in[2].gl_Position;
//   out_color = testfun(interpolate(in_color));
// }
string makeTessEvalShaderAssembly (const map<string, string>& fragments)
{
	static const char tessEvalBoilerplate[] =
		"OpCapability Tessellation\n"
		"${capability:opt}\n"
		"${extension:opt}\n"
		"OpMemoryModel Logical GLSL450\n"
		"OpEntryPoint TessellationEvaluation %BP_main \"main\" %BP_stream %BP_gl_TessCoord %BP_gl_PrimitiveID %BP_gl_in %BP_out_color %BP_in_color ${IF_entrypoint:opt} \n"
		"OpExecutionMode %BP_main Triangles\n"
		"OpExecutionMode %BP_main SpacingEqual\n"
		"OpExecutionMode %BP_main VertexOrderCcw\n"
		"${execution_mode:opt}\n"
		"${debug:opt}\n"
		"${moduleprocessed:opt}\n"
		"OpMemberDecorate %BP_gl_PerVertexOut 0 BuiltIn Position\n"
		"OpMemberDecorate %BP_gl_PerVertexOut 1 BuiltIn PointSize\n"
		"OpMemberDecorate %BP_gl_PerVertexOut 2 BuiltIn ClipDistance\n"
		"OpMemberDecorate %BP_gl_PerVertexOut 3 BuiltIn CullDistance\n"
		"OpDecorate %BP_gl_PerVertexOut Block\n"
		"OpDecorate %BP_gl_PrimitiveID BuiltIn PrimitiveId\n"
		"OpDecorate %BP_gl_TessCoord BuiltIn TessCoord\n"
		"OpMemberDecorate %BP_gl_PerVertexIn 0 BuiltIn Position\n"
		"OpMemberDecorate %BP_gl_PerVertexIn 1 BuiltIn PointSize\n"
		"OpMemberDecorate %BP_gl_PerVertexIn 2 BuiltIn ClipDistance\n"
		"OpMemberDecorate %BP_gl_PerVertexIn 3 BuiltIn CullDistance\n"
		"OpDecorate %BP_gl_PerVertexIn Block\n"
		"OpDecorate %BP_out_color Location 1\n"
		"OpDecorate %BP_in_color Location 1\n"
		"${IF_decoration:opt}\n"
		"${decoration:opt}\n"
		SPIRV_ASSEMBLY_TYPES
		SPIRV_ASSEMBLY_CONSTANTS
		SPIRV_ASSEMBLY_ARRAYS
		"%BP_gl_PerVertexOut = OpTypeStruct %v4f32 %f32 %a1f32 %a1f32\n"
		"%BP_op_gl_PerVertexOut = OpTypePointer Output %BP_gl_PerVertexOut\n"
		"%BP_stream = OpVariable %BP_op_gl_PerVertexOut Output\n"
		"%BP_gl_TessCoord = OpVariable %ip_v3f32 Input\n"
		"%BP_gl_PrimitiveID = OpVariable %ip_i32 Input\n"
		"%BP_gl_PerVertexIn = OpTypeStruct %v4f32 %f32 %a1f32 %a1f32\n"
		"%BP_a32_gl_PerVertexIn = OpTypeArray %BP_gl_PerVertexIn %c_u32_32\n"
		"%BP_ip_a32_gl_PerVertexIn = OpTypePointer Input %BP_a32_gl_PerVertexIn\n"
		"%BP_gl_in = OpVariable %BP_ip_a32_gl_PerVertexIn Input\n"
		"%BP_out_color = OpVariable %op_v4f32 Output\n"
		"%BP_in_color = OpVariable %ip_a32v4f32 Input\n"
		"${pre_main:opt}\n"
		"${IF_variable:opt}\n"
		"%BP_main = OpFunction %void None %fun\n"
		"%BP_label = OpLabel\n"
		"${IF_carryforward:opt}\n"
		"${post_interface_op_tesse:opt}\n"
		"%BP_gl_TC_0 = OpAccessChain %ip_f32 %BP_gl_TessCoord %c_u32_0\n"
		"%BP_gl_TC_1 = OpAccessChain %ip_f32 %BP_gl_TessCoord %c_u32_1\n"
		"%BP_gl_TC_2 = OpAccessChain %ip_f32 %BP_gl_TessCoord %c_u32_2\n"
		"%BP_gl_in_gl_Pos_0 = OpAccessChain %ip_v4f32 %BP_gl_in %c_i32_0 %c_i32_0\n"
		"%BP_gl_in_gl_Pos_1 = OpAccessChain %ip_v4f32 %BP_gl_in %c_i32_1 %c_i32_0\n"
		"%BP_gl_in_gl_Pos_2 = OpAccessChain %ip_v4f32 %BP_gl_in %c_i32_2 %c_i32_0\n"

		"%BP_gl_OPos = OpAccessChain %op_v4f32 %BP_stream %c_i32_0\n"
		"%BP_in_color_0 = OpAccessChain %ip_v4f32 %BP_in_color %c_i32_0\n"
		"%BP_in_color_1 = OpAccessChain %ip_v4f32 %BP_in_color %c_i32_1\n"
		"%BP_in_color_2 = OpAccessChain %ip_v4f32 %BP_in_color %c_i32_2\n"

		"%BP_TC_W_0 = OpLoad %f32 %BP_gl_TC_0\n"
		"%BP_TC_W_1 = OpLoad %f32 %BP_gl_TC_1\n"
		"%BP_TC_W_2 = OpLoad %f32 %BP_gl_TC_2\n"
		"%BP_v4f32_TC_0 = OpCompositeConstruct %v4f32 %BP_TC_W_0 %BP_TC_W_0 %BP_TC_W_0 %BP_TC_W_0\n"
		"%BP_v4f32_TC_1 = OpCompositeConstruct %v4f32 %BP_TC_W_1 %BP_TC_W_1 %BP_TC_W_1 %BP_TC_W_1\n"
		"%BP_v4f32_TC_2 = OpCompositeConstruct %v4f32 %BP_TC_W_2 %BP_TC_W_2 %BP_TC_W_2 %BP_TC_W_2\n"

		"%BP_gl_IP_0 = OpLoad %v4f32 %BP_gl_in_gl_Pos_0\n"
		"%BP_gl_IP_1 = OpLoad %v4f32 %BP_gl_in_gl_Pos_1\n"
		"%BP_gl_IP_2 = OpLoad %v4f32 %BP_gl_in_gl_Pos_2\n"

		"%BP_IP_W_0 = OpFMul %v4f32 %BP_v4f32_TC_0 %BP_gl_IP_0\n"
		"%BP_IP_W_1 = OpFMul %v4f32 %BP_v4f32_TC_1 %BP_gl_IP_1\n"
		"%BP_IP_W_2 = OpFMul %v4f32 %BP_v4f32_TC_2 %BP_gl_IP_2\n"

		"%BP_pos_sum_0 = OpFAdd %v4f32 %BP_IP_W_0 %BP_IP_W_1\n"
		"%BP_pos_sum_1 = OpFAdd %v4f32 %BP_pos_sum_0 %BP_IP_W_2\n"

		"OpStore %BP_gl_OPos %BP_pos_sum_1\n"

		"%BP_IC_0 = OpLoad %v4f32 %BP_in_color_0\n"
		"%BP_IC_1 = OpLoad %v4f32 %BP_in_color_1\n"
		"%BP_IC_2 = OpLoad %v4f32 %BP_in_color_2\n"

		"%BP_IC_W_0 = OpFMul %v4f32 %BP_v4f32_TC_0 %BP_IC_0\n"
		"%BP_IC_W_1 = OpFMul %v4f32 %BP_v4f32_TC_1 %BP_IC_1\n"
		"%BP_IC_W_2 = OpFMul %v4f32 %BP_v4f32_TC_2 %BP_IC_2\n"

		"%BP_col_sum_0 = OpFAdd %v4f32 %BP_IC_W_0 %BP_IC_W_1\n"
		"%BP_col_sum_1 = OpFAdd %v4f32 %BP_col_sum_0 %BP_IC_W_2\n"

		"%BP_clr_transformed = OpFunctionCall %v4f32 %test_code %BP_col_sum_1\n"

		"OpStore %BP_out_color %BP_clr_transformed\n"
		"OpReturn\n"
		"OpFunctionEnd\n"
		"${interface_op_func:opt}\n"

		"%isUniqueIdZero = OpFunction %bool None %bool_function\n"
		"%getId_label = OpLabel\n"
		"%primitive_id = OpLoad %i32 %BP_gl_PrimitiveID\n"
		"%is_primitive_0 = OpIEqual %bool %primitive_id %c_i32_0\n"
		"%TC_0_loc = OpAccessChain %ip_f32 %BP_gl_TessCoord %c_u32_0\n"
		"%TC_1_loc = OpAccessChain %ip_f32 %BP_gl_TessCoord %c_u32_1\n"
		"%TC_2_loc = OpAccessChain %ip_f32 %BP_gl_TessCoord %c_u32_2\n"
		"%TC_W_0 = OpLoad %f32 %TC_0_loc\n"
		"%TC_W_1 = OpLoad %f32 %TC_1_loc\n"
		"%TC_W_2 = OpLoad %f32 %TC_2_loc\n"
		"%is_W_0_1 = OpFOrdEqual %bool %TC_W_0 %c_f32_1\n"
		"%is_W_1_0 = OpFOrdEqual %bool %TC_W_1 %c_f32_0\n"
		"%is_W_2_0 = OpFOrdEqual %bool %TC_W_2 %c_f32_0\n"
		"%is_tessCoord_1_0 = OpLogicalAnd %bool %is_W_0_1 %is_W_1_0\n"
		"%is_tessCoord_1_0_0 = OpLogicalAnd %bool %is_tessCoord_1_0 %is_W_2_0\n"
		"%is_unique_id_0 = OpLogicalAnd %bool %is_tessCoord_1_0_0 %is_primitive_0\n"
		"OpReturnValue %is_unique_id_0\n"
		"OpFunctionEnd\n"

		"${testfun}\n";
	return tcu::StringTemplate(tessEvalBoilerplate).specialize(fragments);
}

// Creates geometry-shader assembly by specializing a boilerplate StringTemplate
// on fragments, which must (at least) map "testfun" to an OpFunction definition
// for %test_code that takes and returns a %v4f32.  Boilerplate IDs are prefixed
// with "BP_" to avoid collisions with fragments.
//
// Derived from this GLSL:
//
// #version 450
// layout(triangles) in;
// layout(triangle_strip, max_vertices = 3) out;
//
// layout(location = 1) in vec4 in_color[];
// layout(location = 1) out vec4 out_color;
//
// void main() {
//   gl_Position = gl_in[0].gl_Position;
//   out_color = test_fun(in_color[0]);
//   EmitVertex();
//   gl_Position = gl_in[1].gl_Position;
//   out_color = test_fun(in_color[1]);
//   EmitVertex();
//   gl_Position = gl_in[2].gl_Position;
//   out_color = test_fun(in_color[2]);
//   EmitVertex();
//   EndPrimitive();
// }
string makeGeometryShaderAssembly (const map<string, string>& fragments)
{
	static const char geometryShaderBoilerplate[] =
		"OpCapability Geometry\n"
		"${capability:opt}\n"
		"${extension:opt}\n"
		"OpMemoryModel Logical GLSL450\n"
		"OpEntryPoint Geometry %BP_main \"main\" %BP_out_gl_position %BP_gl_PrimitiveID %BP_gl_in %BP_out_color %BP_in_color ${IF_entrypoint:opt} \n"
		"OpExecutionMode %BP_main Triangles\n"
		"OpExecutionMode %BP_main OutputTriangleStrip\n"
		"OpExecutionMode %BP_main OutputVertices 3\n"
		"${execution_mode:opt}\n"
		"${debug:opt}\n"
		"${moduleprocessed:opt}\n"
		"OpDecorate %BP_gl_PrimitiveID BuiltIn PrimitiveId\n"
		"OpDecorate %BP_out_gl_position BuiltIn Position\n"
		"OpMemberDecorate %BP_per_vertex_in 0 BuiltIn Position\n"
		"OpMemberDecorate %BP_per_vertex_in 1 BuiltIn PointSize\n"
		"OpMemberDecorate %BP_per_vertex_in 2 BuiltIn ClipDistance\n"
		"OpMemberDecorate %BP_per_vertex_in 3 BuiltIn CullDistance\n"
		"OpDecorate %BP_per_vertex_in Block\n"
		"OpDecorate %BP_out_color Location 1\n"
		"OpDecorate %BP_in_color Location 1\n"
		"${IF_decoration:opt}\n"
		"${decoration:opt}\n"
		SPIRV_ASSEMBLY_TYPES
		SPIRV_ASSEMBLY_CONSTANTS
		SPIRV_ASSEMBLY_ARRAYS
		"%BP_per_vertex_in = OpTypeStruct %v4f32 %f32 %a1f32 %a1f32\n"
		"%BP_a3_per_vertex_in = OpTypeArray %BP_per_vertex_in %c_u32_3\n"
		"%BP_ip_a3_per_vertex_in = OpTypePointer Input %BP_a3_per_vertex_in\n"
		"%BP_pp_i32 = OpTypePointer Private %i32\n"
		"%BP_pp_v4i32 = OpTypePointer Private %v4i32\n"

		"%BP_gl_in = OpVariable %BP_ip_a3_per_vertex_in Input\n"
		"%BP_out_color = OpVariable %op_v4f32 Output\n"
		"%BP_in_color = OpVariable %ip_a3v4f32 Input\n"
		"%BP_gl_PrimitiveID = OpVariable %ip_i32 Input\n"
		"%BP_out_gl_position = OpVariable %op_v4f32 Output\n"
		"%BP_vertexIdInCurrentPatch = OpVariable %BP_pp_v4i32 Private\n"
		"${pre_main:opt}\n"
		"${IF_variable:opt}\n"

		"%BP_main = OpFunction %void None %fun\n"
		"%BP_label = OpLabel\n"

		"${IF_carryforward:opt}\n"
		"${post_interface_op_geom:opt}\n"

		"%BP_primitiveId = OpLoad %i32 %BP_gl_PrimitiveID\n"
		"%BP_addr_vertexIdInCurrentPatch = OpAccessChain %BP_pp_i32 %BP_vertexIdInCurrentPatch %BP_primitiveId\n"

		"%BP_gl_in_0_gl_position = OpAccessChain %ip_v4f32 %BP_gl_in %c_i32_0 %c_i32_0\n"
		"%BP_gl_in_1_gl_position = OpAccessChain %ip_v4f32 %BP_gl_in %c_i32_1 %c_i32_0\n"
		"%BP_gl_in_2_gl_position = OpAccessChain %ip_v4f32 %BP_gl_in %c_i32_2 %c_i32_0\n"

		"%BP_in_position_0 = OpLoad %v4f32 %BP_gl_in_0_gl_position\n"
		"%BP_in_position_1 = OpLoad %v4f32 %BP_gl_in_1_gl_position\n"
		"%BP_in_position_2 = OpLoad %v4f32 %BP_gl_in_2_gl_position \n"

		"%BP_in_color_0_ptr = OpAccessChain %ip_v4f32 %BP_in_color %c_i32_0\n"
		"%BP_in_color_1_ptr = OpAccessChain %ip_v4f32 %BP_in_color %c_i32_1\n"
		"%BP_in_color_2_ptr = OpAccessChain %ip_v4f32 %BP_in_color %c_i32_2\n"

		"%BP_in_color_0 = OpLoad %v4f32 %BP_in_color_0_ptr\n"
		"%BP_in_color_1 = OpLoad %v4f32 %BP_in_color_1_ptr\n"
		"%BP_in_color_2 = OpLoad %v4f32 %BP_in_color_2_ptr\n"

		"OpStore %BP_addr_vertexIdInCurrentPatch %c_i32_0\n"
		"%BP_transformed_in_color_0 = OpFunctionCall %v4f32 %test_code %BP_in_color_0\n"
		"OpStore %BP_addr_vertexIdInCurrentPatch %c_i32_1\n"
		"%BP_transformed_in_color_1 = OpFunctionCall %v4f32 %test_code %BP_in_color_1\n"
		"OpStore %BP_addr_vertexIdInCurrentPatch %c_i32_2\n"
		"%BP_transformed_in_color_2 = OpFunctionCall %v4f32 %test_code %BP_in_color_2\n"


		"OpStore %BP_out_gl_position %BP_in_position_0\n"
		"OpStore %BP_out_color %BP_transformed_in_color_0\n"
		"OpEmitVertex\n"

		"OpStore %BP_out_gl_position %BP_in_position_1\n"
		"OpStore %BP_out_color %BP_transformed_in_color_1\n"
		"OpEmitVertex\n"

		"OpStore %BP_out_gl_position %BP_in_position_2\n"
		"OpStore %BP_out_color %BP_transformed_in_color_2\n"
		"OpEmitVertex\n"

		"OpEndPrimitive\n"
		"OpReturn\n"
		"OpFunctionEnd\n"
		"${interface_op_func:opt}\n"

		"%isUniqueIdZero = OpFunction %bool None %bool_function\n"
		"%getId_label = OpLabel\n"
		"%primitive_id = OpLoad %i32 %BP_gl_PrimitiveID\n"
		"%addr_vertexIdInCurrentPatch = OpAccessChain %BP_pp_i32 %BP_vertexIdInCurrentPatch %primitive_id\n"
		"%vertexIdInCurrentPatch = OpLoad %i32 %addr_vertexIdInCurrentPatch\n"
		"%is_primitive_0 = OpIEqual %bool %primitive_id %c_i32_0\n"
		"%is_vertex_0 = OpIEqual %bool %vertexIdInCurrentPatch %c_i32_0\n"
		"%is_unique_id_0 = OpLogicalAnd %bool %is_primitive_0 %is_vertex_0\n"
		"OpReturnValue %is_unique_id_0\n"
		"OpFunctionEnd\n"

		"${testfun}\n";
	return tcu::StringTemplate(geometryShaderBoilerplate).specialize(fragments);
}

// Creates fragment-shader assembly by specializing a boilerplate StringTemplate
// on fragments, which must (at least) map "testfun" to an OpFunction definition
// for %test_code that takes and returns a %v4f32.  Boilerplate IDs are prefixed
// with "BP_" to avoid collisions with fragments.
//
// Derived from this GLSL:
//
// layout(location = 1) in highp vec4 vtxColor;
// layout(location = 0) out highp vec4 fragColor;
// highp vec4 testfun(highp vec4 x) { return x; }
// void main(void) { fragColor = testfun(vtxColor); }
//
// with modifications including passing vtxColor by value and ripping out
// testfun() definition.
string makeFragmentShaderAssembly (const map<string, string>& fragments)
{
	static const char fragmentShaderBoilerplate[] =
		"OpCapability Shader\n"
		"${capability:opt}\n"
		"${extension:opt}\n"
		"OpMemoryModel Logical GLSL450\n"
		"OpEntryPoint Fragment %BP_main \"main\" %BP_vtxColor %BP_fragColor %BP_gl_FragCoord ${IF_entrypoint:opt} \n"
		"OpExecutionMode %BP_main OriginUpperLeft\n"
		"${execution_mode:opt}\n"
		"${debug:opt}\n"
		"${moduleprocessed:opt}\n"
		"OpDecorate %BP_fragColor Location 0\n"
		"OpDecorate %BP_vtxColor Location 1\n"
		"OpDecorate %BP_gl_FragCoord BuiltIn FragCoord\n"
		"${IF_decoration:opt}\n"
		"${decoration:opt}\n"
		SPIRV_ASSEMBLY_TYPES
		SPIRV_ASSEMBLY_CONSTANTS
		SPIRV_ASSEMBLY_ARRAYS
		"%BP_gl_FragCoord = OpVariable %ip_v4f32 Input\n"
		"%BP_fragColor = OpVariable %op_v4f32 Output\n"
		"%BP_vtxColor = OpVariable %ip_v4f32 Input\n"
		"${pre_main:opt}\n"
		"${IF_variable:opt}\n"
		"%BP_main = OpFunction %void None %fun\n"
		"%BP_label_main = OpLabel\n"
		"${IF_carryforward:opt}\n"
		"${post_interface_op_frag:opt}\n"
		"%BP_tmp1 = OpLoad %v4f32 %BP_vtxColor\n"
		"%BP_tmp2 = OpFunctionCall %v4f32 %test_code %BP_tmp1\n"
		"OpStore %BP_fragColor %BP_tmp2\n"
		"OpReturn\n"
		"OpFunctionEnd\n"
		"${interface_op_func:opt}\n"

		"%isUniqueIdZero = OpFunction %bool None %bool_function\n"
		"%getId_label = OpLabel\n"
		"%loc_x_coord = OpAccessChain %ip_f32 %BP_gl_FragCoord %c_i32_0\n"
		"%loc_y_coord = OpAccessChain %ip_f32 %BP_gl_FragCoord %c_i32_1\n"
		"%x_coord = OpLoad %f32 %loc_x_coord\n"
		"%y_coord = OpLoad %f32 %loc_y_coord\n"
		"%is_x_idx0 = OpFOrdEqual %bool %x_coord %c_f32_0_5\n"
		"%is_y_idx0 = OpFOrdEqual %bool %y_coord %c_f32_0_5\n"
		"%is_frag_0 = OpLogicalAnd %bool %is_x_idx0 %is_y_idx0\n"
		"OpReturnValue %is_frag_0\n"
		"OpFunctionEnd\n"

		"${testfun}\n";
	return tcu::StringTemplate(fragmentShaderBoilerplate).specialize(fragments);
}

// Creates mappings from placeholders to pass-through shader code which copies
// the input to the output faithfully.
map<string, string> passthruInterface (const IFDataType& data_type)
{
	const string		var_type	= data_type.str();
	map<string, string>	fragments	= passthruFragments();
	const string		functype	= string("%") + var_type + "_" + var_type + "_function";

	fragments["interface_op_func"]	=
		string("%interface_op_func = OpFunction %") + var_type + " None " + functype + "\n"
		"               %io_param1 = OpFunctionParameter %" + var_type + "\n"
		"                %IF_label = OpLabel\n"
		"                            OpReturnValue %io_param1\n"
		"                            OpFunctionEnd\n";
	fragments["input_type"]			= var_type;
	fragments["output_type"]		= var_type;
	fragments["pre_main"]			= "";

	if (!data_type.elementIs32bit())
	{
		if (data_type.elementType == NUMBERTYPE_FLOAT64)
		{
			fragments["capability"]		= "OpCapability Float64\n\n";
			fragments["pre_main"]	+= "%f64 = OpTypeFloat 64\n";
		}
		else if (data_type.elementType == NUMBERTYPE_FLOAT16)
		{
			fragments["capability"]		= "OpCapability StorageInputOutput16\n";
			fragments["extension"]		= "OpExtension \"SPV_KHR_16bit_storage\"\n";
			fragments["pre_main"]	+= "%f16 = OpTypeFloat 16\n";
		}
		else if (data_type.elementType == NUMBERTYPE_INT16)
		{
			fragments["capability"]		= "OpCapability StorageInputOutput16\n";
			fragments["extension"]		= "OpExtension \"SPV_KHR_16bit_storage\"\n";
			fragments["pre_main"]	+= "%i16 = OpTypeInt 16 1\n";
		}
		else if (data_type.elementType == NUMBERTYPE_UINT16)
		{
			fragments["capability"]		= "OpCapability StorageInputOutput16\n";
			fragments["extension"]		= "OpExtension \"SPV_KHR_16bit_storage\"\n";
			fragments["pre_main"]	+= "%u16 = OpTypeInt 16 0\n";
		}
		else
		{
			DE_ASSERT(0 && "unhandled type");
		}

		if (data_type.isVector())
		{
			fragments["pre_main"]	+= "%" + var_type + " = OpTypeVector %" + IFDataType(1, data_type.elementType).str() + " " + numberToString(data_type.numElements) + "\n";
		}

		fragments["pre_main"]		+=
			"%ip_" + var_type + " = OpTypePointer Input %" + var_type + "\n"
			"%op_" + var_type + " = OpTypePointer Output %" + var_type + "\n";
	}

	if (strcmp(var_type.c_str(), "v4f32") != 0)
		fragments["pre_main"]		+=
			functype + " = OpTypeFunction %" + var_type + " %" + var_type + "\n"
			"%a3" + var_type + " = OpTypeArray %" + var_type + " %c_i32_3\n"
			"%ip_a3" + var_type + " = OpTypePointer Input %a3" + var_type + "\n"
			"%op_a3" + var_type + " = OpTypePointer Output %a3" + var_type + "\n";

	return fragments;
}

// Returns mappings from interface placeholders to their concrete values.
//
// The concrete values should be specialized again to provide ${input_type}
// and ${output_type}.
//
// %ip_${input_type} and %op_${output_type} should also be defined in the final code.
map<string, string> fillInterfacePlaceholderVert (void)
{
	map<string, string>	fragments;

	fragments["IF_entrypoint"]		= "%IF_input %IF_output";
	fragments["IF_variable"]		=
		" %IF_input = OpVariable %ip_${input_type} Input\n"
		"%IF_output = OpVariable %op_${output_type} Output\n";
	fragments["IF_decoration"]		=
		"OpDecorate  %IF_input Location 2\n"
		"OpDecorate %IF_output Location 2\n";
	fragments["IF_carryforward"]	=
		"%IF_input_val = OpLoad %${input_type} %IF_input\n"
		"   %IF_result = OpFunctionCall %${output_type} %interface_op_func %IF_input_val\n"
		"                OpStore %IF_output %IF_result\n";

	// Make sure the rest still need to be instantialized.
	fragments["capability"]				= "${capability:opt}";
	fragments["extension"]				= "${extension:opt}";
	fragments["execution_mode"]			= "${execution_mode:opt}";
	fragments["debug"]					= "${debug:opt}";
	fragments["decoration"]				= "${decoration:opt}";
	fragments["pre_main"]				= "${pre_main:opt}";
	fragments["testfun"]				= "${testfun}";
	fragments["interface_op_func"]		= "${interface_op_func}";
	fragments["post_interface_op_vert"]	= "${post_interface_op_vert:opt}";

	return fragments;
}

// Returns mappings from interface placeholders to their concrete values.
//
// The concrete values should be specialized again to provide ${input_type}
// and ${output_type}.
//
// %ip_${input_type} and %op_${output_type} should also be defined in the final code.
map<string, string> fillInterfacePlaceholderFrag (void)
{
	map<string, string>	fragments;

	fragments["IF_entrypoint"]		= "%IF_input %IF_output";
	fragments["IF_variable"]		=
		" %IF_input = OpVariable %ip_${input_type} Input\n"
		"%IF_output = OpVariable %op_${output_type} Output\n";
	fragments["IF_decoration"]		=
		"OpDecorate %IF_input Flat\n"
		"OpDecorate %IF_input Location 2\n"
		"OpDecorate %IF_output Location 1\n";  // Fragment shader should write to location #1.
	fragments["IF_carryforward"]	=
		"%IF_input_val = OpLoad %${input_type} %IF_input\n"
		"   %IF_result = OpFunctionCall %${output_type} %interface_op_func %IF_input_val\n"
		"                OpStore %IF_output %IF_result\n";

	// Make sure the rest still need to be instantialized.
	fragments["capability"]				= "${capability:opt}";
	fragments["extension"]				= "${extension:opt}";
	fragments["execution_mode"]			= "${execution_mode:opt}";
	fragments["debug"]					= "${debug:opt}";
	fragments["decoration"]				= "${decoration:opt}";
	fragments["pre_main"]				= "${pre_main:opt}";
	fragments["testfun"]				= "${testfun}";
	fragments["interface_op_func"]		= "${interface_op_func}";
	fragments["post_interface_op_frag"]	= "${post_interface_op_frag:opt}";

	return fragments;
}

// Returns mappings from interface placeholders to their concrete values.
//
// The concrete values should be specialized again to provide ${input_type}
// and ${output_type}.
//
// %ip_${input_type}, %op_${output_type}, %ip_a3${input_type}, and $op_a3${output_type}
// should also be defined in the final code.
map<string, string> fillInterfacePlaceholderTessCtrl (void)
{
	map<string, string>	fragments;

	fragments["IF_entrypoint"]		= "%IF_input %IF_output";
	fragments["IF_variable"]		=
		" %IF_input = OpVariable %ip_a3${input_type} Input\n"
		"%IF_output = OpVariable %op_a3${output_type} Output\n";
	fragments["IF_decoration"]		=
		"OpDecorate  %IF_input Location 2\n"
		"OpDecorate %IF_output Location 2\n";
	fragments["IF_carryforward"]	=
		" %IF_input_ptr0 = OpAccessChain %ip_${input_type} %IF_input %c_i32_0\n"
		" %IF_input_ptr1 = OpAccessChain %ip_${input_type} %IF_input %c_i32_1\n"
		" %IF_input_ptr2 = OpAccessChain %ip_${input_type} %IF_input %c_i32_2\n"
		"%IF_output_ptr0 = OpAccessChain %op_${output_type} %IF_output %c_i32_0\n"
		"%IF_output_ptr1 = OpAccessChain %op_${output_type} %IF_output %c_i32_1\n"
		"%IF_output_ptr2 = OpAccessChain %op_${output_type} %IF_output %c_i32_2\n"
		"%IF_input_val0 = OpLoad %${input_type} %IF_input_ptr0\n"
		"%IF_input_val1 = OpLoad %${input_type} %IF_input_ptr1\n"
		"%IF_input_val2 = OpLoad %${input_type} %IF_input_ptr2\n"
		"%IF_input_res0 = OpFunctionCall %${output_type} %interface_op_func %IF_input_val0\n"
		"%IF_input_res1 = OpFunctionCall %${output_type} %interface_op_func %IF_input_val1\n"
		"%IF_input_res2 = OpFunctionCall %${output_type} %interface_op_func %IF_input_val2\n"
		"OpStore %IF_output_ptr0 %IF_input_res0\n"
		"OpStore %IF_output_ptr1 %IF_input_res1\n"
		"OpStore %IF_output_ptr2 %IF_input_res2\n";

	// Make sure the rest still need to be instantialized.
	fragments["capability"]					= "${capability:opt}";
	fragments["extension"]					= "${extension:opt}";
	fragments["execution_mode"]				= "${execution_mode:opt}";
	fragments["debug"]						= "${debug:opt}";
	fragments["decoration"]					= "${decoration:opt}";
	fragments["decoration_tessc"]			= "${decoration_tessc:opt}";
	fragments["pre_main"]					= "${pre_main:opt}";
	fragments["testfun"]					= "${testfun}";
	fragments["interface_op_func"]			= "${interface_op_func}";
	fragments["post_interface_op_tessc"]	= "${post_interface_op_tessc:opt}";

	return fragments;
}

// Returns mappings from interface placeholders to their concrete values.
//
// The concrete values should be specialized again to provide ${input_type}
// and ${output_type}.
//
// %ip_${input_type}, %op_${output_type}, %ip_a3${input_type}, and $op_a3${output_type}
// should also be defined in the final code.
map<string, string> fillInterfacePlaceholderTessEvalGeom (void)
{
	map<string, string>	fragments;

	fragments["IF_entrypoint"]		= "%IF_input %IF_output";
	fragments["IF_variable"]		=
		" %IF_input = OpVariable %ip_a3${input_type} Input\n"
		"%IF_output = OpVariable %op_${output_type} Output\n";
	fragments["IF_decoration"]		=
		"OpDecorate  %IF_input Location 2\n"
		"OpDecorate %IF_output Location 2\n";
	fragments["IF_carryforward"]	=
		// Only get the first value since all three values are the same anyway.
		" %IF_input_ptr0 = OpAccessChain %ip_${input_type} %IF_input %c_i32_0\n"
		" %IF_input_val0 = OpLoad %${input_type} %IF_input_ptr0\n"
		" %IF_input_res0 = OpFunctionCall %${output_type} %interface_op_func %IF_input_val0\n"
		"OpStore %IF_output %IF_input_res0\n";

	// Make sure the rest still need to be instantialized.
	fragments["capability"]					= "${capability:opt}";
	fragments["extension"]					= "${extension:opt}";
	fragments["execution_mode"]				= "${execution_mode:opt}";
	fragments["debug"]						= "${debug:opt}";
	fragments["decoration"]					= "${decoration:opt}";
	fragments["pre_main"]					= "${pre_main:opt}";
	fragments["testfun"]					= "${testfun}";
	fragments["interface_op_func"]			= "${interface_op_func}";
	fragments["post_interface_op_tesse"]	= "${post_interface_op_tesse:opt}";
	fragments["post_interface_op_geom"]		= "${post_interface_op_geom:opt}";

	return fragments;
}

map<string, string> passthruFragments (void)
{
	map<string, string> fragments;
	fragments["testfun"] =
		// A %test_code function that returns its argument unchanged.
		"%test_code = OpFunction %v4f32 None %v4f32_v4f32_function\n"
		"%param1 = OpFunctionParameter %v4f32\n"
		"%label_testfun = OpLabel\n"
		"OpReturnValue %param1\n"
		"OpFunctionEnd\n";
	return fragments;
}

// Adds shader assembly text to dst.spirvAsmSources for all shader kinds.
// Vertex shader gets custom code from context, the rest are pass-through.
void addShaderCodeCustomVertex (vk::SourceCollections& dst, InstanceContext& context, const SpirVAsmBuildOptions* spirVAsmBuildOptions)
{
	const deUint32 vulkanVersion = dst.usedVulkanVersion;
	SpirvVersion targetSpirvVersion;

	if (spirVAsmBuildOptions == DE_NULL)
		targetSpirvVersion = context.resources.spirvVersion;
	else
		targetSpirvVersion = spirVAsmBuildOptions->targetVersion;

	if (!context.interfaces.empty())
	{
		// Inject boilerplate code to wire up additional input/output variables between stages.
		// Just copy the contents in input variable to output variable in all stages except
		// the customized stage.
		dst.spirvAsmSources.add("vert", spirVAsmBuildOptions) << StringTemplate(makeVertexShaderAssembly(fillInterfacePlaceholderVert())).specialize(context.testCodeFragments) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
		dst.spirvAsmSources.add("frag", spirVAsmBuildOptions) << StringTemplate(makeFragmentShaderAssembly(fillInterfacePlaceholderFrag())).specialize(passthruInterface(context.interfaces.getOutputType())) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
	} else {
		map<string, string> passthru = passthruFragments();

		dst.spirvAsmSources.add("vert", spirVAsmBuildOptions) << makeVertexShaderAssembly(context.testCodeFragments) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
		dst.spirvAsmSources.add("frag", spirVAsmBuildOptions) << makeFragmentShaderAssembly(passthru) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
	}
}

void addShaderCodeCustomVertex (vk::SourceCollections& dst, InstanceContext context)
{
	addShaderCodeCustomVertex(dst, context, DE_NULL);
}

// Adds shader assembly text to dst.spirvAsmSources for all shader kinds.
// Tessellation control shader gets custom code from context, the rest are
// pass-through.
void addShaderCodeCustomTessControl (vk::SourceCollections& dst, InstanceContext& context, const SpirVAsmBuildOptions* spirVAsmBuildOptions)
{
	const deUint32 vulkanVersion = dst.usedVulkanVersion;
	SpirvVersion targetSpirvVersion;

	if (spirVAsmBuildOptions == DE_NULL)
		targetSpirvVersion = context.resources.spirvVersion;
	else
		targetSpirvVersion = spirVAsmBuildOptions->targetVersion;

	if (!context.interfaces.empty())
	{
		// Inject boilerplate code to wire up additional input/output variables between stages.
		// Just copy the contents in input variable to output variable in all stages except
		// the customized stage.
		dst.spirvAsmSources.add("vert",  spirVAsmBuildOptions) << StringTemplate(makeVertexShaderAssembly(fillInterfacePlaceholderVert())).specialize(passthruInterface(context.interfaces.getInputType())) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
		dst.spirvAsmSources.add("tessc", spirVAsmBuildOptions) << StringTemplate(makeTessControlShaderAssembly(fillInterfacePlaceholderTessCtrl())).specialize(context.testCodeFragments) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
		dst.spirvAsmSources.add("tesse", spirVAsmBuildOptions) << StringTemplate(makeTessEvalShaderAssembly(fillInterfacePlaceholderTessEvalGeom())).specialize(passthruInterface(context.interfaces.getOutputType())) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
		dst.spirvAsmSources.add("frag",  spirVAsmBuildOptions) << StringTemplate(makeFragmentShaderAssembly(fillInterfacePlaceholderFrag())).specialize(passthruInterface(context.interfaces.getOutputType())) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
	}
	else
	{
		map<string, string> passthru = passthruFragments();

		dst.spirvAsmSources.add("vert",  spirVAsmBuildOptions) << makeVertexShaderAssembly(passthru) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
		dst.spirvAsmSources.add("tessc", spirVAsmBuildOptions) << makeTessControlShaderAssembly(context.testCodeFragments) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
		dst.spirvAsmSources.add("tesse", spirVAsmBuildOptions) << makeTessEvalShaderAssembly(passthru) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
		dst.spirvAsmSources.add("frag",  spirVAsmBuildOptions) << makeFragmentShaderAssembly(passthru) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
	}
}

void addShaderCodeCustomTessControl (vk::SourceCollections& dst, InstanceContext context)
{
	addShaderCodeCustomTessControl(dst, context, DE_NULL);
}

// Adds shader assembly text to dst.spirvAsmSources for all shader kinds.
// Tessellation evaluation shader gets custom code from context, the rest are
// pass-through.
void addShaderCodeCustomTessEval (vk::SourceCollections& dst, InstanceContext& context, const SpirVAsmBuildOptions* spirVAsmBuildOptions)
{
	const deUint32 vulkanVersion = dst.usedVulkanVersion;
	SpirvVersion targetSpirvVersion;

	if (spirVAsmBuildOptions == DE_NULL)
		targetSpirvVersion = context.resources.spirvVersion;
	else
		targetSpirvVersion = spirVAsmBuildOptions->targetVersion;

	if (!context.interfaces.empty())
	{
		// Inject boilerplate code to wire up additional input/output variables between stages.
		// Just copy the contents in input variable to output variable in all stages except
		// the customized stage.
		dst.spirvAsmSources.add("vert",  spirVAsmBuildOptions) << StringTemplate(makeVertexShaderAssembly(fillInterfacePlaceholderVert())).specialize(passthruInterface(context.interfaces.getInputType())) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
		dst.spirvAsmSources.add("tessc", spirVAsmBuildOptions) << StringTemplate(makeTessControlShaderAssembly(fillInterfacePlaceholderTessCtrl())).specialize(passthruInterface(context.interfaces.getInputType())) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
		dst.spirvAsmSources.add("tesse", spirVAsmBuildOptions) << StringTemplate(makeTessEvalShaderAssembly(fillInterfacePlaceholderTessEvalGeom())).specialize(context.testCodeFragments) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
		dst.spirvAsmSources.add("frag",  spirVAsmBuildOptions) << StringTemplate(makeFragmentShaderAssembly(fillInterfacePlaceholderFrag())).specialize(passthruInterface(context.interfaces.getOutputType())) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
	}
	else
	{
		map<string, string> passthru = passthruFragments();
		dst.spirvAsmSources.add("vert",  spirVAsmBuildOptions) << makeVertexShaderAssembly(passthru) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
		dst.spirvAsmSources.add("tessc", spirVAsmBuildOptions) << makeTessControlShaderAssembly(passthru) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
		dst.spirvAsmSources.add("tesse", spirVAsmBuildOptions) << makeTessEvalShaderAssembly(context.testCodeFragments) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
		dst.spirvAsmSources.add("frag",  spirVAsmBuildOptions) << makeFragmentShaderAssembly(passthru) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
	}
}

void addShaderCodeCustomTessEval (vk::SourceCollections& dst, InstanceContext context)
{
	addShaderCodeCustomTessEval(dst, context, DE_NULL);
}

// Adds shader assembly text to dst.spirvAsmSources for all shader kinds.
// Geometry shader gets custom code from context, the rest are pass-through.
void addShaderCodeCustomGeometry (vk::SourceCollections& dst, InstanceContext& context, const SpirVAsmBuildOptions* spirVAsmBuildOptions)
{
	const deUint32 vulkanVersion = dst.usedVulkanVersion;
	SpirvVersion targetSpirvVersion;

	if (spirVAsmBuildOptions == DE_NULL)
		targetSpirvVersion = context.resources.spirvVersion;
	else
		targetSpirvVersion = spirVAsmBuildOptions->targetVersion;

	if (!context.interfaces.empty())
	{
		// Inject boilerplate code to wire up additional input/output variables between stages.
		// Just copy the contents in input variable to output variable in all stages except
		// the customized stage.
		dst.spirvAsmSources.add("vert", spirVAsmBuildOptions) << StringTemplate(makeVertexShaderAssembly(fillInterfacePlaceholderVert())).specialize(passthruInterface(context.interfaces.getInputType())) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
		dst.spirvAsmSources.add("geom", spirVAsmBuildOptions) << StringTemplate(makeGeometryShaderAssembly(fillInterfacePlaceholderTessEvalGeom())).specialize(context.testCodeFragments) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
		dst.spirvAsmSources.add("frag", spirVAsmBuildOptions) << StringTemplate(makeFragmentShaderAssembly(fillInterfacePlaceholderFrag())).specialize(passthruInterface(context.interfaces.getOutputType())) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
	}
	else
	{
		map<string, string> passthru = passthruFragments();
		dst.spirvAsmSources.add("vert", spirVAsmBuildOptions) << makeVertexShaderAssembly(passthru) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
		dst.spirvAsmSources.add("geom", spirVAsmBuildOptions) << makeGeometryShaderAssembly(context.testCodeFragments) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
		dst.spirvAsmSources.add("frag", spirVAsmBuildOptions) << makeFragmentShaderAssembly(passthru) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
	}
}

void addShaderCodeCustomGeometry (vk::SourceCollections& dst, InstanceContext context)
{
	addShaderCodeCustomGeometry(dst, context, DE_NULL);
}

// Adds shader assembly text to dst.spirvAsmSources for all shader kinds.
// Fragment shader gets custom code from context, the rest are pass-through.
void addShaderCodeCustomFragment (vk::SourceCollections& dst, InstanceContext& context, const SpirVAsmBuildOptions* spirVAsmBuildOptions)
{
	const deUint32 vulkanVersion = dst.usedVulkanVersion;
	SpirvVersion targetSpirvVersion;

	if (spirVAsmBuildOptions == DE_NULL)
		targetSpirvVersion = context.resources.spirvVersion;
	else
		targetSpirvVersion = spirVAsmBuildOptions->targetVersion;

	if (!context.interfaces.empty())
	{
		// Inject boilerplate code to wire up additional input/output variables between stages.
		// Just copy the contents in input variable to output variable in all stages except
		// the customized stage.
		dst.spirvAsmSources.add("vert", spirVAsmBuildOptions) << StringTemplate(makeVertexShaderAssembly(fillInterfacePlaceholderVert())).specialize(passthruInterface(context.interfaces.getInputType())) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
		dst.spirvAsmSources.add("frag", spirVAsmBuildOptions) << StringTemplate(makeFragmentShaderAssembly(fillInterfacePlaceholderFrag())).specialize(context.testCodeFragments) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
	}
	else
	{
		map<string, string> passthru = passthruFragments();
		dst.spirvAsmSources.add("vert", spirVAsmBuildOptions) << makeVertexShaderAssembly(passthru) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
		dst.spirvAsmSources.add("frag", spirVAsmBuildOptions) << makeFragmentShaderAssembly(context.testCodeFragments) << SpirVAsmBuildOptions(vulkanVersion, targetSpirvVersion);
	}
}

void addShaderCodeCustomFragment (vk::SourceCollections& dst, InstanceContext context)
{
	addShaderCodeCustomFragment(dst, context, DE_NULL);
}

void createCombinedModule (vk::SourceCollections& dst, InstanceContext ctx)
{
	const bool			useTessellation	(ctx.requiredStages & (VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT | VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT));
	const bool			useGeometry		(ctx.requiredStages & VK_SHADER_STAGE_GEOMETRY_BIT);
	std::stringstream	combinedModule;
	std::stringstream	opCapabilities;
	std::stringstream	opEntryPoints;

	// opCapabilities
	{
		opCapabilities << "OpCapability Shader\n";

		if (useGeometry)
			opCapabilities << "OpCapability Geometry\n";

		if (useTessellation)
			opCapabilities << "OpCapability Tessellation\n";
	}

	// opEntryPoints
	{
		if (useTessellation)
			opEntryPoints << "OpEntryPoint Vertex %vert_main \"main\" %vert_Position %vert_vtxColor %vert_color %vert_vtxPosition %vert_vertex_id %vert_instance_id\n";
		else
			opEntryPoints << "OpEntryPoint Vertex %vert_main \"main\" %vert_Position %vert_vtxColor %vert_color %vert_glPerVertex %vert_vertex_id %vert_instance_id\n";

		if (useGeometry)
			opEntryPoints << "OpEntryPoint Geometry %geom_main \"main\" %geom_out_gl_position %geom_gl_in %geom_out_color %geom_in_color\n";

		if (useTessellation)
		{
			opEntryPoints <<	"OpEntryPoint TessellationControl %tessc_main \"main\" %tessc_out_color %tessc_gl_InvocationID %tessc_in_color %tessc_out_position %tessc_in_position %tessc_gl_TessLevelOuter %tessc_gl_TessLevelInner\n"
								"OpEntryPoint TessellationEvaluation %tesse_main \"main\" %tesse_stream %tesse_gl_tessCoord %tesse_in_position %tesse_out_color %tesse_in_color \n";
		}

		opEntryPoints << "OpEntryPoint Fragment %frag_main \"main\" %frag_vtxColor %frag_fragColor\n";
	}

	combinedModule	<<	opCapabilities.str()
					<<	"OpMemoryModel Logical GLSL450\n"
					<<	opEntryPoints.str();

	if (useGeometry)
	{
		combinedModule <<	"OpExecutionMode %geom_main Triangles\n"
							"OpExecutionMode %geom_main OutputTriangleStrip\n"
							"OpExecutionMode %geom_main OutputVertices 3\n";
	}

	if (useTessellation)
	{
		combinedModule <<	"OpExecutionMode %tessc_main OutputVertices 3\n"
							"OpExecutionMode %tesse_main Triangles\n"
							"OpExecutionMode %tesse_main SpacingEqual\n"
							"OpExecutionMode %tesse_main VertexOrderCcw\n";
	}

	combinedModule <<	"OpExecutionMode %frag_main OriginUpperLeft\n"

						"; Vertex decorations\n"
						"OpDecorate %vert_Position Location 0\n"
						"OpDecorate %vert_vtxColor Location 1\n"
						"OpDecorate %vert_color Location 1\n"
						"OpDecorate %vert_vertex_id BuiltIn VertexIndex\n"
						"OpDecorate %vert_instance_id BuiltIn InstanceIndex\n";

	// If tessellation is used, vertex position is written by tessellation stage.
	// Otherwise it will be written by vertex stage.
	if (useTessellation)
		combinedModule <<	"OpDecorate %vert_vtxPosition Location 2\n";
	else
	{
		combinedModule <<	"OpMemberDecorate %vert_per_vertex_out 0 BuiltIn Position\n"
							"OpMemberDecorate %vert_per_vertex_out 1 BuiltIn PointSize\n"
							"OpMemberDecorate %vert_per_vertex_out 2 BuiltIn ClipDistance\n"
							"OpMemberDecorate %vert_per_vertex_out 3 BuiltIn CullDistance\n"
							"OpDecorate %vert_per_vertex_out Block\n";
	}

	if (useGeometry)
	{
		combinedModule <<	"; Geometry decorations\n"
							"OpDecorate %geom_out_gl_position BuiltIn Position\n"
							"OpMemberDecorate %geom_per_vertex_in 0 BuiltIn Position\n"
							"OpMemberDecorate %geom_per_vertex_in 1 BuiltIn PointSize\n"
							"OpMemberDecorate %geom_per_vertex_in 2 BuiltIn ClipDistance\n"
							"OpMemberDecorate %geom_per_vertex_in 3 BuiltIn CullDistance\n"
							"OpDecorate %geom_per_vertex_in Block\n"
							"OpDecorate %geom_out_color Location 1\n"
							"OpDecorate %geom_in_color Location 1\n";
	}

	if (useTessellation)
	{
		combinedModule <<	"; Tessellation Control decorations\n"
							"OpDecorate %tessc_out_color Location 1\n"
							"OpDecorate %tessc_gl_InvocationID BuiltIn InvocationId\n"
							"OpDecorate %tessc_in_color Location 1\n"
							"OpDecorate %tessc_out_position Location 2\n"
							"OpDecorate %tessc_in_position Location 2\n"
							"OpDecorate %tessc_gl_TessLevelOuter Patch\n"
							"OpDecorate %tessc_gl_TessLevelOuter BuiltIn TessLevelOuter\n"
							"OpDecorate %tessc_gl_TessLevelInner Patch\n"
							"OpDecorate %tessc_gl_TessLevelInner BuiltIn TessLevelInner\n"

							"; Tessellation Evaluation decorations\n"
							"OpMemberDecorate %tesse_per_vertex_out 0 BuiltIn Position\n"
							"OpMemberDecorate %tesse_per_vertex_out 1 BuiltIn PointSize\n"
							"OpMemberDecorate %tesse_per_vertex_out 2 BuiltIn ClipDistance\n"
							"OpMemberDecorate %tesse_per_vertex_out 3 BuiltIn CullDistance\n"
							"OpDecorate %tesse_per_vertex_out Block\n"
							"OpDecorate %tesse_gl_tessCoord BuiltIn TessCoord\n"
							"OpDecorate %tesse_in_position Location 2\n"
							"OpDecorate %tesse_out_color Location 1\n"
							"OpDecorate %tesse_in_color Location 1\n";
	}

	combinedModule <<	"; Fragment decorations\n"
						"OpDecorate %frag_fragColor Location 0\n"
						"OpDecorate %frag_vtxColor Location 1\n"

						SPIRV_ASSEMBLY_TYPES
						SPIRV_ASSEMBLY_CONSTANTS
						SPIRV_ASSEMBLY_ARRAYS

						"; Vertex Variables\n"
						"%vert_Position = OpVariable %ip_v4f32 Input\n"
						"%vert_vtxColor = OpVariable %op_v4f32 Output\n"
						"%vert_color = OpVariable %ip_v4f32 Input\n"
						"%vert_vertex_id = OpVariable %ip_i32 Input\n"
						"%vert_instance_id = OpVariable %ip_i32 Input\n";

	if (useTessellation)
		combinedModule <<	"%vert_vtxPosition = OpVariable %op_v4f32 Output\n";
	else
	{
		combinedModule <<	"%vert_per_vertex_out = OpTypeStruct %v4f32 %f32 %a1f32 %a1f32\n"
							"%vert_op_per_vertex_out = OpTypePointer Output %vert_per_vertex_out\n"
							"%vert_glPerVertex = OpVariable %vert_op_per_vertex_out Output\n";
	}

	if (useGeometry)
	{
		combinedModule <<	"; Geometry Variables\n"
							"%geom_per_vertex_in = OpTypeStruct %v4f32 %f32 %a1f32 %a1f32\n"
							"%geom_a3_per_vertex_in = OpTypeArray %geom_per_vertex_in %c_u32_3\n"
							"%geom_ip_a3_per_vertex_in = OpTypePointer Input %geom_a3_per_vertex_in\n"
							"%geom_gl_in = OpVariable %geom_ip_a3_per_vertex_in Input\n"
							"%geom_out_color = OpVariable %op_v4f32 Output\n"
							"%geom_in_color = OpVariable %ip_a3v4f32 Input\n"
							"%geom_out_gl_position = OpVariable %op_v4f32 Output\n";
	}

	if (useTessellation)
	{
		combinedModule <<	"; Tessellation Control Variables\n"
							"%tessc_out_color = OpVariable %op_a3v4f32 Output\n"
							"%tessc_gl_InvocationID = OpVariable %ip_i32 Input\n"
							"%tessc_in_color = OpVariable %ip_a32v4f32 Input\n"
							"%tessc_out_position = OpVariable %op_a3v4f32 Output\n"
							"%tessc_in_position = OpVariable %ip_a32v4f32 Input\n"
							"%tessc_gl_TessLevelOuter = OpVariable %op_a4f32 Output\n"
							"%tessc_gl_TessLevelInner = OpVariable %op_a2f32 Output\n"

							"; Tessellation Evaluation Decorations\n"
							"%tesse_per_vertex_out = OpTypeStruct %v4f32 %f32 %a1f32 %a1f32\n"
							"%tesse_op_per_vertex_out = OpTypePointer Output %tesse_per_vertex_out\n"
							"%tesse_stream = OpVariable %tesse_op_per_vertex_out Output\n"
							"%tesse_gl_tessCoord = OpVariable %ip_v3f32 Input\n"
							"%tesse_in_position = OpVariable %ip_a32v4f32 Input\n"
							"%tesse_out_color = OpVariable %op_v4f32 Output\n"
							"%tesse_in_color = OpVariable %ip_a32v4f32 Input\n";
	}

	combinedModule	<<	"; Fragment Variables\n"
						"%frag_fragColor = OpVariable %op_v4f32 Output\n"
						"%frag_vtxColor = OpVariable %ip_v4f32 Input\n"

						"; Vertex Entry\n"
						"%vert_main = OpFunction %void None %fun\n"
						"%vert_label = OpLabel\n"
						"%vert_tmp_position = OpLoad %v4f32 %vert_Position\n";

	if (useTessellation)
		combinedModule <<	"OpStore %vert_vtxPosition %vert_tmp_position\n";
	else
	{
		combinedModule <<	"%vert_out_pos_ptr = OpAccessChain %op_v4f32 %vert_glPerVertex %c_i32_0\n"
							"OpStore %vert_out_pos_ptr %vert_tmp_position\n";
	}

	combinedModule <<	"%vert_tmp_color = OpLoad %v4f32 %vert_color\n"
						"OpStore %vert_vtxColor %vert_tmp_color\n"
						"OpReturn\n"
						"OpFunctionEnd\n";

	if (useGeometry)
	{
		combinedModule <<	"; Geometry Entry\n"
							"%geom_main = OpFunction %void None %fun\n"
							"%geom_label = OpLabel\n"
							"%geom_gl_in_0_gl_position = OpAccessChain %ip_v4f32 %geom_gl_in %c_i32_0 %c_i32_0\n"
							"%geom_gl_in_1_gl_position = OpAccessChain %ip_v4f32 %geom_gl_in %c_i32_1 %c_i32_0\n"
							"%geom_gl_in_2_gl_position = OpAccessChain %ip_v4f32 %geom_gl_in %c_i32_2 %c_i32_0\n"
							"%geom_in_position_0 = OpLoad %v4f32 %geom_gl_in_0_gl_position\n"
							"%geom_in_position_1 = OpLoad %v4f32 %geom_gl_in_1_gl_position\n"
							"%geom_in_position_2 = OpLoad %v4f32 %geom_gl_in_2_gl_position \n"
							"%geom_in_color_0_ptr = OpAccessChain %ip_v4f32 %geom_in_color %c_i32_0\n"
							"%geom_in_color_1_ptr = OpAccessChain %ip_v4f32 %geom_in_color %c_i32_1\n"
							"%geom_in_color_2_ptr = OpAccessChain %ip_v4f32 %geom_in_color %c_i32_2\n"
							"%geom_in_color_0 = OpLoad %v4f32 %geom_in_color_0_ptr\n"
							"%geom_in_color_1 = OpLoad %v4f32 %geom_in_color_1_ptr\n"
							"%geom_in_color_2 = OpLoad %v4f32 %geom_in_color_2_ptr\n"
							"OpStore %geom_out_gl_position %geom_in_position_0\n"
							"OpStore %geom_out_color %geom_in_color_0\n"
							"OpEmitVertex\n"
							"OpStore %geom_out_gl_position %geom_in_position_1\n"
							"OpStore %geom_out_color %geom_in_color_1\n"
							"OpEmitVertex\n"
							"OpStore %geom_out_gl_position %geom_in_position_2\n"
							"OpStore %geom_out_color %geom_in_color_2\n"
							"OpEmitVertex\n"
							"OpEndPrimitive\n"
							"OpReturn\n"
							"OpFunctionEnd\n";
	}

	if (useTessellation)
	{
		combinedModule <<	"; Tessellation Control Entry\n"
							"%tessc_main = OpFunction %void None %fun\n"
							"%tessc_label = OpLabel\n"
							"%tessc_invocation_id = OpLoad %i32 %tessc_gl_InvocationID\n"
							"%tessc_in_color_ptr = OpAccessChain %ip_v4f32 %tessc_in_color %tessc_invocation_id\n"
							"%tessc_in_position_ptr = OpAccessChain %ip_v4f32 %tessc_in_position %tessc_invocation_id\n"
							"%tessc_in_color_val = OpLoad %v4f32 %tessc_in_color_ptr\n"
							"%tessc_in_position_val = OpLoad %v4f32 %tessc_in_position_ptr\n"
							"%tessc_out_color_ptr = OpAccessChain %op_v4f32 %tessc_out_color %tessc_invocation_id\n"
							"%tessc_out_position_ptr = OpAccessChain %op_v4f32 %tessc_out_position %tessc_invocation_id\n"
							"OpStore %tessc_out_color_ptr %tessc_in_color_val\n"
							"OpStore %tessc_out_position_ptr %tessc_in_position_val\n"
							"%tessc_is_first_invocation = OpIEqual %bool %tessc_invocation_id %c_i32_0\n"
							"OpSelectionMerge %tessc_merge_label None\n"
							"OpBranchConditional %tessc_is_first_invocation %tessc_first_invocation %tessc_merge_label\n"
							"%tessc_first_invocation = OpLabel\n"
							"%tessc_tess_outer_0 = OpAccessChain %op_f32 %tessc_gl_TessLevelOuter %c_i32_0\n"
							"%tessc_tess_outer_1 = OpAccessChain %op_f32 %tessc_gl_TessLevelOuter %c_i32_1\n"
							"%tessc_tess_outer_2 = OpAccessChain %op_f32 %tessc_gl_TessLevelOuter %c_i32_2\n"
							"%tessc_tess_inner = OpAccessChain %op_f32 %tessc_gl_TessLevelInner %c_i32_0\n"
							"OpStore %tessc_tess_outer_0 %c_f32_1\n"
							"OpStore %tessc_tess_outer_1 %c_f32_1\n"
							"OpStore %tessc_tess_outer_2 %c_f32_1\n"
							"OpStore %tessc_tess_inner %c_f32_1\n"
							"OpBranch %tessc_merge_label\n"
							"%tessc_merge_label = OpLabel\n"
							"OpReturn\n"
							"OpFunctionEnd\n"

							"; Tessellation Evaluation Entry\n"
							"%tesse_main = OpFunction %void None %fun\n"
							"%tesse_label = OpLabel\n"
							"%tesse_tc_0_ptr = OpAccessChain %ip_f32 %tesse_gl_tessCoord %c_u32_0\n"
							"%tesse_tc_1_ptr = OpAccessChain %ip_f32 %tesse_gl_tessCoord %c_u32_1\n"
							"%tesse_tc_2_ptr = OpAccessChain %ip_f32 %tesse_gl_tessCoord %c_u32_2\n"
							"%tesse_tc_0 = OpLoad %f32 %tesse_tc_0_ptr\n"
							"%tesse_tc_1 = OpLoad %f32 %tesse_tc_1_ptr\n"
							"%tesse_tc_2 = OpLoad %f32 %tesse_tc_2_ptr\n"
							"%tesse_in_pos_0_ptr = OpAccessChain %ip_v4f32 %tesse_in_position %c_i32_0\n"
							"%tesse_in_pos_1_ptr = OpAccessChain %ip_v4f32 %tesse_in_position %c_i32_1\n"
							"%tesse_in_pos_2_ptr = OpAccessChain %ip_v4f32 %tesse_in_position %c_i32_2\n"
							"%tesse_in_pos_0 = OpLoad %v4f32 %tesse_in_pos_0_ptr\n"
							"%tesse_in_pos_1 = OpLoad %v4f32 %tesse_in_pos_1_ptr\n"
							"%tesse_in_pos_2 = OpLoad %v4f32 %tesse_in_pos_2_ptr\n"
							"%tesse_in_pos_0_weighted = OpVectorTimesScalar %v4f32 %tesse_in_pos_0 %tesse_tc_0\n"
							"%tesse_in_pos_1_weighted = OpVectorTimesScalar %v4f32 %tesse_in_pos_1 %tesse_tc_1\n"
							"%tesse_in_pos_2_weighted = OpVectorTimesScalar %v4f32 %tesse_in_pos_2 %tesse_tc_2\n"
							"%tesse_out_pos_ptr = OpAccessChain %op_v4f32 %tesse_stream %c_i32_0\n"
							"%tesse_in_pos_0_plus_pos_1 = OpFAdd %v4f32 %tesse_in_pos_0_weighted %tesse_in_pos_1_weighted\n"
							"%tesse_computed_out = OpFAdd %v4f32 %tesse_in_pos_0_plus_pos_1 %tesse_in_pos_2_weighted\n"
							"OpStore %tesse_out_pos_ptr %tesse_computed_out\n"
							"%tesse_in_clr_0_ptr = OpAccessChain %ip_v4f32 %tesse_in_color %c_i32_0\n"
							"%tesse_in_clr_1_ptr = OpAccessChain %ip_v4f32 %tesse_in_color %c_i32_1\n"
							"%tesse_in_clr_2_ptr = OpAccessChain %ip_v4f32 %tesse_in_color %c_i32_2\n"
							"%tesse_in_clr_0 = OpLoad %v4f32 %tesse_in_clr_0_ptr\n"
							"%tesse_in_clr_1 = OpLoad %v4f32 %tesse_in_clr_1_ptr\n"
							"%tesse_in_clr_2 = OpLoad %v4f32 %tesse_in_clr_2_ptr\n"
							"%tesse_in_clr_0_weighted = OpVectorTimesScalar %v4f32 %tesse_in_clr_0 %tesse_tc_0\n"
							"%tesse_in_clr_1_weighted = OpVectorTimesScalar %v4f32 %tesse_in_clr_1 %tesse_tc_1\n"
							"%tesse_in_clr_2_weighted = OpVectorTimesScalar %v4f32 %tesse_in_clr_2 %tesse_tc_2\n"
							"%tesse_in_clr_0_plus_col_1 = OpFAdd %v4f32 %tesse_in_clr_0_weighted %tesse_in_clr_1_weighted\n"
							"%tesse_computed_clr = OpFAdd %v4f32 %tesse_in_clr_0_plus_col_1 %tesse_in_clr_2_weighted\n"
							"OpStore %tesse_out_color %tesse_computed_clr\n"
							"OpReturn\n"
							"OpFunctionEnd\n";
	}

	combinedModule	<<	"; Fragment Entry\n"
						"%frag_main = OpFunction %void None %fun\n"
						"%frag_label_main = OpLabel\n"
						"%frag_tmp1 = OpLoad %v4f32 %frag_vtxColor\n"
						"OpStore %frag_fragColor %frag_tmp1\n"
						"OpReturn\n"
						"OpFunctionEnd\n";

	dst.spirvAsmSources.add("module") << combinedModule.str();
}

void createMultipleEntries (vk::SourceCollections& dst, InstanceContext)
{
	dst.spirvAsmSources.add("vert") <<
	// This module contains 2 vertex shaders. One that is a passthrough
	// and a second that inverts the color of the output (1.0 - color).
		"OpCapability Shader\n"
		"OpMemoryModel Logical GLSL450\n"
		"OpEntryPoint Vertex %main \"vert1\" %Position %vtxColor %color %vtxPosition %vertex_id %instance_id\n"
		"OpEntryPoint Vertex %main2 \"vert2\" %Position %vtxColor %color %vtxPosition %vertex_id %instance_id\n"

		"OpDecorate %vtxPosition Location 2\n"
		"OpDecorate %Position Location 0\n"
		"OpDecorate %vtxColor Location 1\n"
		"OpDecorate %color Location 1\n"
		"OpDecorate %vertex_id BuiltIn VertexIndex\n"
		"OpDecorate %instance_id BuiltIn InstanceIndex\n"
		SPIRV_ASSEMBLY_TYPES
		SPIRV_ASSEMBLY_CONSTANTS
		SPIRV_ASSEMBLY_ARRAYS
		"%cval = OpConstantComposite %v4f32 %c_f32_1 %c_f32_1 %c_f32_1 %c_f32_0\n"
		"%vtxPosition = OpVariable %op_v4f32 Output\n"
		"%Position = OpVariable %ip_v4f32 Input\n"
		"%vtxColor = OpVariable %op_v4f32 Output\n"
		"%color = OpVariable %ip_v4f32 Input\n"
		"%vertex_id = OpVariable %ip_i32 Input\n"
		"%instance_id = OpVariable %ip_i32 Input\n"

		"%main = OpFunction %void None %fun\n"
		"%label = OpLabel\n"
		"%tmp_position = OpLoad %v4f32 %Position\n"
		"OpStore %vtxPosition %tmp_position\n"
		"%tmp_color = OpLoad %v4f32 %color\n"
		"OpStore %vtxColor %tmp_color\n"
		"OpReturn\n"
		"OpFunctionEnd\n"

		"%main2 = OpFunction %void None %fun\n"
		"%label2 = OpLabel\n"
		"%tmp_position2 = OpLoad %v4f32 %Position\n"
		"OpStore %vtxPosition %tmp_position2\n"
		"%tmp_color2 = OpLoad %v4f32 %color\n"
		"%tmp_color3 = OpFSub %v4f32 %cval %tmp_color2\n"
		"%tmp_color4 = OpVectorInsertDynamic %v4f32 %tmp_color3 %c_f32_1 %c_i32_3\n"
		"OpStore %vtxColor %tmp_color4\n"
		"OpReturn\n"
		"OpFunctionEnd\n";

	dst.spirvAsmSources.add("frag") <<
		// This is a single module that contains 2 fragment shaders.
		// One that passes color through and the other that inverts the output
		// color (1.0 - color).
		"OpCapability Shader\n"
		"OpMemoryModel Logical GLSL450\n"
		"OpEntryPoint Fragment %main \"frag1\" %vtxColor %fragColor\n"
		"OpEntryPoint Fragment %main2 \"frag2\" %vtxColor %fragColor\n"
		"OpExecutionMode %main OriginUpperLeft\n"
		"OpExecutionMode %main2 OriginUpperLeft\n"

		"OpDecorate %fragColor Location 0\n"
		"OpDecorate %vtxColor Location 1\n"
		SPIRV_ASSEMBLY_TYPES
		SPIRV_ASSEMBLY_CONSTANTS
		SPIRV_ASSEMBLY_ARRAYS
		"%cval = OpConstantComposite %v4f32 %c_f32_1 %c_f32_1 %c_f32_1 %c_f32_0\n"
		"%fragColor = OpVariable %op_v4f32 Output\n"
		"%vtxColor = OpVariable %ip_v4f32 Input\n"

		"%main = OpFunction %void None %fun\n"
		"%label_main = OpLabel\n"
		"%tmp1 = OpLoad %v4f32 %vtxColor\n"
		"OpStore %fragColor %tmp1\n"
		"OpReturn\n"
		"OpFunctionEnd\n"

		"%main2 = OpFunction %void None %fun\n"
		"%label_main2 = OpLabel\n"
		"%tmp2 = OpLoad %v4f32 %vtxColor\n"
		"%tmp3 = OpFSub %v4f32 %cval %tmp2\n"
		"%tmp4 = OpVectorInsertDynamic %v4f32 %tmp3 %c_f32_1 %c_i32_3\n"
		"OpStore %fragColor %tmp4\n"
		"OpReturn\n"
		"OpFunctionEnd\n";

	dst.spirvAsmSources.add("geom") <<
		"OpCapability Geometry\n"
		"OpMemoryModel Logical GLSL450\n"
		"OpEntryPoint Geometry %geom1_main \"geom1\" %out_gl_position %gl_in %out_color %in_color\n"
		"OpEntryPoint Geometry %geom2_main \"geom2\" %out_gl_position %gl_in %out_color %in_color\n"
		"OpExecutionMode %geom1_main Triangles\n"
		"OpExecutionMode %geom2_main Triangles\n"
		"OpExecutionMode %geom1_main OutputTriangleStrip\n"
		"OpExecutionMode %geom2_main OutputTriangleStrip\n"
		"OpExecutionMode %geom1_main OutputVertices 3\n"
		"OpExecutionMode %geom2_main OutputVertices 3\n"
		"OpDecorate %out_gl_position BuiltIn Position\n"
		"OpMemberDecorate %per_vertex_in 0 BuiltIn Position\n"
		"OpMemberDecorate %per_vertex_in 1 BuiltIn PointSize\n"
		"OpMemberDecorate %per_vertex_in 2 BuiltIn ClipDistance\n"
		"OpMemberDecorate %per_vertex_in 3 BuiltIn CullDistance\n"
		"OpDecorate %per_vertex_in Block\n"
		"OpDecorate %out_color Location 1\n"
		"OpDecorate %in_color Location 1\n"
		SPIRV_ASSEMBLY_TYPES
		SPIRV_ASSEMBLY_CONSTANTS
		SPIRV_ASSEMBLY_ARRAYS
		"%cval = OpConstantComposite %v4f32 %c_f32_1 %c_f32_1 %c_f32_1 %c_f32_0\n"
		"%per_vertex_in = OpTypeStruct %v4f32 %f32 %a1f32 %a1f32\n"
		"%a3_per_vertex_in = OpTypeArray %per_vertex_in %c_u32_3\n"
		"%ip_a3_per_vertex_in = OpTypePointer Input %a3_per_vertex_in\n"
		"%gl_in = OpVariable %ip_a3_per_vertex_in Input\n"
		"%out_color = OpVariable %op_v4f32 Output\n"
		"%in_color = OpVariable %ip_a3v4f32 Input\n"
		"%out_gl_position = OpVariable %op_v4f32 Output\n"

		"%geom1_main = OpFunction %void None %fun\n"
		"%geom1_label = OpLabel\n"
		"%geom1_gl_in_0_gl_position = OpAccessChain %ip_v4f32 %gl_in %c_i32_0 %c_i32_0\n"
		"%geom1_gl_in_1_gl_position = OpAccessChain %ip_v4f32 %gl_in %c_i32_1 %c_i32_0\n"
		"%geom1_gl_in_2_gl_position = OpAccessChain %ip_v4f32 %gl_in %c_i32_2 %c_i32_0\n"
		"%geom1_in_position_0 = OpLoad %v4f32 %geom1_gl_in_0_gl_position\n"
		"%geom1_in_position_1 = OpLoad %v4f32 %geom1_gl_in_1_gl_position\n"
		"%geom1_in_position_2 = OpLoad %v4f32 %geom1_gl_in_2_gl_position \n"
		"%geom1_in_color_0_ptr = OpAccessChain %ip_v4f32 %in_color %c_i32_0\n"
		"%geom1_in_color_1_ptr = OpAccessChain %ip_v4f32 %in_color %c_i32_1\n"
		"%geom1_in_color_2_ptr = OpAccessChain %ip_v4f32 %in_color %c_i32_2\n"
		"%geom1_in_color_0 = OpLoad %v4f32 %geom1_in_color_0_ptr\n"
		"%geom1_in_color_1 = OpLoad %v4f32 %geom1_in_color_1_ptr\n"
		"%geom1_in_color_2 = OpLoad %v4f32 %geom1_in_color_2_ptr\n"
		"OpStore %out_gl_position %geom1_in_position_0\n"
		"OpStore %out_color %geom1_in_color_0\n"
		"OpEmitVertex\n"
		"OpStore %out_gl_position %geom1_in_position_1\n"
		"OpStore %out_color %geom1_in_color_1\n"
		"OpEmitVertex\n"
		"OpStore %out_gl_position %geom1_in_position_2\n"
		"OpStore %out_color %geom1_in_color_2\n"
		"OpEmitVertex\n"
		"OpEndPrimitive\n"
		"OpReturn\n"
		"OpFunctionEnd\n"

		"%geom2_main = OpFunction %void None %fun\n"
		"%geom2_label = OpLabel\n"
		"%geom2_gl_in_0_gl_position = OpAccessChain %ip_v4f32 %gl_in %c_i32_0 %c_i32_0\n"
		"%geom2_gl_in_1_gl_position = OpAccessChain %ip_v4f32 %gl_in %c_i32_1 %c_i32_0\n"
		"%geom2_gl_in_2_gl_position = OpAccessChain %ip_v4f32 %gl_in %c_i32_2 %c_i32_0\n"
		"%geom2_in_position_0 = OpLoad %v4f32 %geom2_gl_in_0_gl_position\n"
		"%geom2_in_position_1 = OpLoad %v4f32 %geom2_gl_in_1_gl_position\n"
		"%geom2_in_position_2 = OpLoad %v4f32 %geom2_gl_in_2_gl_position \n"
		"%geom2_in_color_0_ptr = OpAccessChain %ip_v4f32 %in_color %c_i32_0\n"
		"%geom2_in_color_1_ptr = OpAccessChain %ip_v4f32 %in_color %c_i32_1\n"
		"%geom2_in_color_2_ptr = OpAccessChain %ip_v4f32 %in_color %c_i32_2\n"
		"%geom2_in_color_0 = OpLoad %v4f32 %geom2_in_color_0_ptr\n"
		"%geom2_in_color_1 = OpLoad %v4f32 %geom2_in_color_1_ptr\n"
		"%geom2_in_color_2 = OpLoad %v4f32 %geom2_in_color_2_ptr\n"
		"%geom2_transformed_in_color_0 = OpFSub %v4f32 %cval %geom2_in_color_0\n"
		"%geom2_transformed_in_color_1 = OpFSub %v4f32 %cval %geom2_in_color_1\n"
		"%geom2_transformed_in_color_2 = OpFSub %v4f32 %cval %geom2_in_color_2\n"
		"%geom2_transformed_in_color_0_a = OpVectorInsertDynamic %v4f32 %geom2_transformed_in_color_0 %c_f32_1 %c_i32_3\n"
		"%geom2_transformed_in_color_1_a = OpVectorInsertDynamic %v4f32 %geom2_transformed_in_color_1 %c_f32_1 %c_i32_3\n"
		"%geom2_transformed_in_color_2_a = OpVectorInsertDynamic %v4f32 %geom2_transformed_in_color_2 %c_f32_1 %c_i32_3\n"
		"OpStore %out_gl_position %geom2_in_position_0\n"
		"OpStore %out_color %geom2_transformed_in_color_0_a\n"
		"OpEmitVertex\n"
		"OpStore %out_gl_position %geom2_in_position_1\n"
		"OpStore %out_color %geom2_transformed_in_color_1_a\n"
		"OpEmitVertex\n"
		"OpStore %out_gl_position %geom2_in_position_2\n"
		"OpStore %out_color %geom2_transformed_in_color_2_a\n"
		"OpEmitVertex\n"
		"OpEndPrimitive\n"
		"OpReturn\n"
		"OpFunctionEnd\n";

	dst.spirvAsmSources.add("tessc") <<
		"OpCapability Tessellation\n"
		"OpMemoryModel Logical GLSL450\n"
		"OpEntryPoint TessellationControl %tessc1_main \"tessc1\" %out_color %gl_InvocationID %in_color %out_position %in_position %gl_TessLevelOuter %gl_TessLevelInner\n"
		"OpEntryPoint TessellationControl %tessc2_main \"tessc2\" %out_color %gl_InvocationID %in_color %out_position %in_position %gl_TessLevelOuter %gl_TessLevelInner\n"
		"OpExecutionMode %tessc1_main OutputVertices 3\n"
		"OpExecutionMode %tessc2_main OutputVertices 3\n"
		"OpDecorate %out_color Location 1\n"
		"OpDecorate %gl_InvocationID BuiltIn InvocationId\n"
		"OpDecorate %in_color Location 1\n"
		"OpDecorate %out_position Location 2\n"
		"OpDecorate %in_position Location 2\n"
		"OpDecorate %gl_TessLevelOuter Patch\n"
		"OpDecorate %gl_TessLevelOuter BuiltIn TessLevelOuter\n"
		"OpDecorate %gl_TessLevelInner Patch\n"
		"OpDecorate %gl_TessLevelInner BuiltIn TessLevelInner\n"
		SPIRV_ASSEMBLY_TYPES
		SPIRV_ASSEMBLY_CONSTANTS
		SPIRV_ASSEMBLY_ARRAYS
		"%cval = OpConstantComposite %v4f32 %c_f32_1 %c_f32_1 %c_f32_1 %c_f32_0\n"
		"%out_color = OpVariable %op_a3v4f32 Output\n"
		"%gl_InvocationID = OpVariable %ip_i32 Input\n"
		"%in_color = OpVariable %ip_a32v4f32 Input\n"
		"%out_position = OpVariable %op_a3v4f32 Output\n"
		"%in_position = OpVariable %ip_a32v4f32 Input\n"
		"%gl_TessLevelOuter = OpVariable %op_a4f32 Output\n"
		"%gl_TessLevelInner = OpVariable %op_a2f32 Output\n"

		"%tessc1_main = OpFunction %void None %fun\n"
		"%tessc1_label = OpLabel\n"
		"%tessc1_invocation_id = OpLoad %i32 %gl_InvocationID\n"
		"%tessc1_in_color_ptr = OpAccessChain %ip_v4f32 %in_color %tessc1_invocation_id\n"
		"%tessc1_in_position_ptr = OpAccessChain %ip_v4f32 %in_position %tessc1_invocation_id\n"
		"%tessc1_in_color_val = OpLoad %v4f32 %tessc1_in_color_ptr\n"
		"%tessc1_in_position_val = OpLoad %v4f32 %tessc1_in_position_ptr\n"
		"%tessc1_out_color_ptr = OpAccessChain %op_v4f32 %out_color %tessc1_invocation_id\n"
		"%tessc1_out_position_ptr = OpAccessChain %op_v4f32 %out_position %tessc1_invocation_id\n"
		"OpStore %tessc1_out_color_ptr %tessc1_in_color_val\n"
		"OpStore %tessc1_out_position_ptr %tessc1_in_position_val\n"
		"%tessc1_is_first_invocation = OpIEqual %bool %tessc1_invocation_id %c_i32_0\n"
		"OpSelectionMerge %tessc1_merge_label None\n"
		"OpBranchConditional %tessc1_is_first_invocation %tessc1_first_invocation %tessc1_merge_label\n"
		"%tessc1_first_invocation = OpLabel\n"
		"%tessc1_tess_outer_0 = OpAccessChain %op_f32 %gl_TessLevelOuter %c_i32_0\n"
		"%tessc1_tess_outer_1 = OpAccessChain %op_f32 %gl_TessLevelOuter %c_i32_1\n"
		"%tessc1_tess_outer_2 = OpAccessChain %op_f32 %gl_TessLevelOuter %c_i32_2\n"
		"%tessc1_tess_inner = OpAccessChain %op_f32 %gl_TessLevelInner %c_i32_0\n"
		"OpStore %tessc1_tess_outer_0 %c_f32_1\n"
		"OpStore %tessc1_tess_outer_1 %c_f32_1\n"
		"OpStore %tessc1_tess_outer_2 %c_f32_1\n"
		"OpStore %tessc1_tess_inner %c_f32_1\n"
		"OpBranch %tessc1_merge_label\n"
		"%tessc1_merge_label = OpLabel\n"
		"OpReturn\n"
		"OpFunctionEnd\n"

		"%tessc2_main = OpFunction %void None %fun\n"
		"%tessc2_label = OpLabel\n"
		"%tessc2_invocation_id = OpLoad %i32 %gl_InvocationID\n"
		"%tessc2_in_color_ptr = OpAccessChain %ip_v4f32 %in_color %tessc2_invocation_id\n"
		"%tessc2_in_position_ptr = OpAccessChain %ip_v4f32 %in_position %tessc2_invocation_id\n"
		"%tessc2_in_color_val = OpLoad %v4f32 %tessc2_in_color_ptr\n"
		"%tessc2_in_position_val = OpLoad %v4f32 %tessc2_in_position_ptr\n"
		"%tessc2_out_color_ptr = OpAccessChain %op_v4f32 %out_color %tessc2_invocation_id\n"
		"%tessc2_out_position_ptr = OpAccessChain %op_v4f32 %out_position %tessc2_invocation_id\n"
		"%tessc2_transformed_color = OpFSub %v4f32 %cval %tessc2_in_color_val\n"
		"%tessc2_transformed_color_a = OpVectorInsertDynamic %v4f32 %tessc2_transformed_color %c_f32_1 %c_i32_3\n"
		"OpStore %tessc2_out_color_ptr %tessc2_transformed_color_a\n"
		"OpStore %tessc2_out_position_ptr %tessc2_in_position_val\n"
		"%tessc2_is_first_invocation = OpIEqual %bool %tessc2_invocation_id %c_i32_0\n"
		"OpSelectionMerge %tessc2_merge_label None\n"
		"OpBranchConditional %tessc2_is_first_invocation %tessc2_first_invocation %tessc2_merge_label\n"
		"%tessc2_first_invocation = OpLabel\n"
		"%tessc2_tess_outer_0 = OpAccessChain %op_f32 %gl_TessLevelOuter %c_i32_0\n"
		"%tessc2_tess_outer_1 = OpAccessChain %op_f32 %gl_TessLevelOuter %c_i32_1\n"
		"%tessc2_tess_outer_2 = OpAccessChain %op_f32 %gl_TessLevelOuter %c_i32_2\n"
		"%tessc2_tess_inner = OpAccessChain %op_f32 %gl_TessLevelInner %c_i32_0\n"
		"OpStore %tessc2_tess_outer_0 %c_f32_1\n"
		"OpStore %tessc2_tess_outer_1 %c_f32_1\n"
		"OpStore %tessc2_tess_outer_2 %c_f32_1\n"
		"OpStore %tessc2_tess_inner %c_f32_1\n"
		"OpBranch %tessc2_merge_label\n"
		"%tessc2_merge_label = OpLabel\n"
		"OpReturn\n"
		"OpFunctionEnd\n";

	dst.spirvAsmSources.add("tesse") <<
		"OpCapability Tessellation\n"
		"OpMemoryModel Logical GLSL450\n"
		"OpEntryPoint TessellationEvaluation %tesse1_main \"tesse1\" %stream %gl_tessCoord %in_position %out_color %in_color \n"
		"OpEntryPoint TessellationEvaluation %tesse2_main \"tesse2\" %stream %gl_tessCoord %in_position %out_color %in_color \n"
		"OpExecutionMode %tesse1_main Triangles\n"
		"OpExecutionMode %tesse1_main SpacingEqual\n"
		"OpExecutionMode %tesse1_main VertexOrderCcw\n"
		"OpExecutionMode %tesse2_main Triangles\n"
		"OpExecutionMode %tesse2_main SpacingEqual\n"
		"OpExecutionMode %tesse2_main VertexOrderCcw\n"
		"OpMemberDecorate %per_vertex_out 0 BuiltIn Position\n"
		"OpMemberDecorate %per_vertex_out 1 BuiltIn PointSize\n"
		"OpMemberDecorate %per_vertex_out 2 BuiltIn ClipDistance\n"
		"OpMemberDecorate %per_vertex_out 3 BuiltIn CullDistance\n"
		"OpDecorate %per_vertex_out Block\n"
		"OpDecorate %gl_tessCoord BuiltIn TessCoord\n"
		"OpDecorate %in_position Location 2\n"
		"OpDecorate %out_color Location 1\n"
		"OpDecorate %in_color Location 1\n"
		SPIRV_ASSEMBLY_TYPES
		SPIRV_ASSEMBLY_CONSTANTS
		SPIRV_ASSEMBLY_ARRAYS
		"%cval = OpConstantComposite %v4f32 %c_f32_1 %c_f32_1 %c_f32_1 %c_f32_0\n"
		"%per_vertex_out = OpTypeStruct %v4f32 %f32 %a1f32 %a1f32\n"
		"%op_per_vertex_out = OpTypePointer Output %per_vertex_out\n"
		"%stream = OpVariable %op_per_vertex_out Output\n"
		"%gl_tessCoord = OpVariable %ip_v3f32 Input\n"
		"%in_position = OpVariable %ip_a32v4f32 Input\n"
		"%out_color = OpVariable %op_v4f32 Output\n"
		"%in_color = OpVariable %ip_a32v4f32 Input\n"

		"%tesse1_main = OpFunction %void None %fun\n"
		"%tesse1_label = OpLabel\n"
		"%tesse1_tc_0_ptr = OpAccessChain %ip_f32 %gl_tessCoord %c_u32_0\n"
		"%tesse1_tc_1_ptr = OpAccessChain %ip_f32 %gl_tessCoord %c_u32_1\n"
		"%tesse1_tc_2_ptr = OpAccessChain %ip_f32 %gl_tessCoord %c_u32_2\n"
		"%tesse1_tc_0 = OpLoad %f32 %tesse1_tc_0_ptr\n"
		"%tesse1_tc_1 = OpLoad %f32 %tesse1_tc_1_ptr\n"
		"%tesse1_tc_2 = OpLoad %f32 %tesse1_tc_2_ptr\n"
		"%tesse1_in_pos_0_ptr = OpAccessChain %ip_v4f32 %in_position %c_i32_0\n"
		"%tesse1_in_pos_1_ptr = OpAccessChain %ip_v4f32 %in_position %c_i32_1\n"
		"%tesse1_in_pos_2_ptr = OpAccessChain %ip_v4f32 %in_position %c_i32_2\n"
		"%tesse1_in_pos_0 = OpLoad %v4f32 %tesse1_in_pos_0_ptr\n"
		"%tesse1_in_pos_1 = OpLoad %v4f32 %tesse1_in_pos_1_ptr\n"
		"%tesse1_in_pos_2 = OpLoad %v4f32 %tesse1_in_pos_2_ptr\n"
		"%tesse1_in_pos_0_weighted = OpVectorTimesScalar %v4f32 %tesse1_in_pos_0 %tesse1_tc_0\n"
		"%tesse1_in_pos_1_weighted = OpVectorTimesScalar %v4f32 %tesse1_in_pos_1 %tesse1_tc_1\n"
		"%tesse1_in_pos_2_weighted = OpVectorTimesScalar %v4f32 %tesse1_in_pos_2 %tesse1_tc_2\n"
		"%tesse1_out_pos_ptr = OpAccessChain %op_v4f32 %stream %c_i32_0\n"
		"%tesse1_in_pos_0_plus_pos_1 = OpFAdd %v4f32 %tesse1_in_pos_0_weighted %tesse1_in_pos_1_weighted\n"
		"%tesse1_computed_out = OpFAdd %v4f32 %tesse1_in_pos_0_plus_pos_1 %tesse1_in_pos_2_weighted\n"
		"OpStore %tesse1_out_pos_ptr %tesse1_computed_out\n"
		"%tesse1_in_clr_0_ptr = OpAccessChain %ip_v4f32 %in_color %c_i32_0\n"
		"%tesse1_in_clr_1_ptr = OpAccessChain %ip_v4f32 %in_color %c_i32_1\n"
		"%tesse1_in_clr_2_ptr = OpAccessChain %ip_v4f32 %in_color %c_i32_2\n"
		"%tesse1_in_clr_0 = OpLoad %v4f32 %tesse1_in_clr_0_ptr\n"
		"%tesse1_in_clr_1 = OpLoad %v4f32 %tesse1_in_clr_1_ptr\n"
		"%tesse1_in_clr_2 = OpLoad %v4f32 %tesse1_in_clr_2_ptr\n"
		"%tesse1_in_clr_0_weighted = OpVectorTimesScalar %v4f32 %tesse1_in_clr_0 %tesse1_tc_0\n"
		"%tesse1_in_clr_1_weighted = OpVectorTimesScalar %v4f32 %tesse1_in_clr_1 %tesse1_tc_1\n"
		"%tesse1_in_clr_2_weighted = OpVectorTimesScalar %v4f32 %tesse1_in_clr_2 %tesse1_tc_2\n"
		"%tesse1_in_clr_0_plus_col_1 = OpFAdd %v4f32 %tesse1_in_clr_0_weighted %tesse1_in_clr_1_weighted\n"
		"%tesse1_computed_clr = OpFAdd %v4f32 %tesse1_in_clr_0_plus_col_1 %tesse1_in_clr_2_weighted\n"
		"OpStore %out_color %tesse1_computed_clr\n"
		"OpReturn\n"
		"OpFunctionEnd\n"

		"%tesse2_main = OpFunction %void None %fun\n"
		"%tesse2_label = OpLabel\n"
		"%tesse2_tc_0_ptr = OpAccessChain %ip_f32 %gl_tessCoord %c_u32_0\n"
		"%tesse2_tc_1_ptr = OpAccessChain %ip_f32 %gl_tessCoord %c_u32_1\n"
		"%tesse2_tc_2_ptr = OpAccessChain %ip_f32 %gl_tessCoord %c_u32_2\n"
		"%tesse2_tc_0 = OpLoad %f32 %tesse2_tc_0_ptr\n"
		"%tesse2_tc_1 = OpLoad %f32 %tesse2_tc_1_ptr\n"
		"%tesse2_tc_2 = OpLoad %f32 %tesse2_tc_2_ptr\n"
		"%tesse2_in_pos_0_ptr = OpAccessChain %ip_v4f32 %in_position %c_i32_0\n"
		"%tesse2_in_pos_1_ptr = OpAccessChain %ip_v4f32 %in_position %c_i32_1\n"
		"%tesse2_in_pos_2_ptr = OpAccessChain %ip_v4f32 %in_position %c_i32_2\n"
		"%tesse2_in_pos_0 = OpLoad %v4f32 %tesse2_in_pos_0_ptr\n"
		"%tesse2_in_pos_1 = OpLoad %v4f32 %tesse2_in_pos_1_ptr\n"
		"%tesse2_in_pos_2 = OpLoad %v4f32 %tesse2_in_pos_2_ptr\n"
		"%tesse2_in_pos_0_weighted = OpVectorTimesScalar %v4f32 %tesse2_in_pos_0 %tesse2_tc_0\n"
		"%tesse2_in_pos_1_weighted = OpVectorTimesScalar %v4f32 %tesse2_in_pos_1 %tesse2_tc_1\n"
		"%tesse2_in_pos_2_weighted = OpVectorTimesScalar %v4f32 %tesse2_in_pos_2 %tesse2_tc_2\n"
		"%tesse2_out_pos_ptr = OpAccessChain %op_v4f32 %stream %c_i32_0\n"
		"%tesse2_in_pos_0_plus_pos_1 = OpFAdd %v4f32 %tesse2_in_pos_0_weighted %tesse2_in_pos_1_weighted\n"
		"%tesse2_computed_out = OpFAdd %v4f32 %tesse2_in_pos_0_plus_pos_1 %tesse2_in_pos_2_weighted\n"
		"OpStore %tesse2_out_pos_ptr %tesse2_computed_out\n"
		"%tesse2_in_clr_0_ptr = OpAccessChain %ip_v4f32 %in_color %c_i32_0\n"
		"%tesse2_in_clr_1_ptr = OpAccessChain %ip_v4f32 %in_color %c_i32_1\n"
		"%tesse2_in_clr_2_ptr = OpAccessChain %ip_v4f32 %in_color %c_i32_2\n"
		"%tesse2_in_clr_0 = OpLoad %v4f32 %tesse2_in_clr_0_ptr\n"
		"%tesse2_in_clr_1 = OpLoad %v4f32 %tesse2_in_clr_1_ptr\n"
		"%tesse2_in_clr_2 = OpLoad %v4f32 %tesse2_in_clr_2_ptr\n"
		"%tesse2_in_clr_0_weighted = OpVectorTimesScalar %v4f32 %tesse2_in_clr_0 %tesse2_tc_0\n"
		"%tesse2_in_clr_1_weighted = OpVectorTimesScalar %v4f32 %tesse2_in_clr_1 %tesse2_tc_1\n"
		"%tesse2_in_clr_2_weighted = OpVectorTimesScalar %v4f32 %tesse2_in_clr_2 %tesse2_tc_2\n"
		"%tesse2_in_clr_0_plus_col_1 = OpFAdd %v4f32 %tesse2_in_clr_0_weighted %tesse2_in_clr_1_weighted\n"
		"%tesse2_computed_clr = OpFAdd %v4f32 %tesse2_in_clr_0_plus_col_1 %tesse2_in_clr_2_weighted\n"
		"%tesse2_clr_transformed = OpFSub %v4f32 %cval %tesse2_computed_clr\n"
		"%tesse2_clr_transformed_a = OpVectorInsertDynamic %v4f32 %tesse2_clr_transformed %c_f32_1 %c_i32_3\n"
		"OpStore %out_color %tesse2_clr_transformed_a\n"
		"OpReturn\n"
		"OpFunctionEnd\n";
}

bool compare16BitFloat (float original, deUint16 returned, RoundingModeFlags flags, tcu::TestLog& log)
{
	// We only support RTE, RTZ, or both.
	DE_ASSERT(static_cast<int>(flags) > 0 && static_cast<int>(flags) < 4);

	const Float32	originalFloat	(original);
	const Float16	returnedFloat	(returned);

	// Zero are turned into zero under both RTE and RTZ.
	if (originalFloat.isZero())
	{
		if (returnedFloat.isZero())
			return true;

		log << TestLog::Message << "Error: expected zero but returned " << returned << TestLog::EndMessage;
		return false;
	}

	// Any denormalized value input into a shader may be flushed to 0.
	if (originalFloat.isDenorm() && returnedFloat.isZero())
		return true;

	// Inf are always turned into Inf with the same sign, too.
	if (originalFloat.isInf())
	{
		if (returnedFloat.isInf() && originalFloat.signBit() == returnedFloat.signBit())
			return true;

		log << TestLog::Message << "Error: expected Inf but returned " << returned << TestLog::EndMessage;
		return false;
	}

	// NaN are always turned into NaN, too.
	if (originalFloat.isNaN())
	{
		if (returnedFloat.isNaN())
			return true;

		log << TestLog::Message << "Error: expected NaN but returned " << returned << TestLog::EndMessage;
		return false;
	}

	// Check all rounding modes
	for (int bitNdx = 0; bitNdx < 2; ++bitNdx)
	{
		if ((flags & (1u << bitNdx)) == 0)
			continue;	// This rounding mode is not selected.

		const Float16	expectedFloat	(deFloat32To16Round(original, deRoundingMode(bitNdx)));

		// Any denormalized value potentially generated by any instruction in a shader may be flushed to 0.
		if (expectedFloat.isDenorm() && returnedFloat.isZero())
			return true;

		// If not matched in the above cases, they should have the same bit pattern.
		if (expectedFloat.bits() == returnedFloat.bits())
			return true;
	}

	log << TestLog::Message << "Error: found unmatched 32-bit and 16-bit floats: " << originalFloat.bits() << " vs " << returned << TestLog::EndMessage;
	return false;
}

bool compare16BitFloat (deUint16 original, deUint16 returned, tcu::TestLog& log)
{
	const Float16	originalFloat	(original);
	const Float16	returnedFloat	(returned);

	if (originalFloat.isZero())
	{
		if (returnedFloat.isZero())
			return true;

		log << TestLog::Message << "Error: expected zero but returned " << returned << TestLog::EndMessage;
		return false;
	}

	// Any denormalized value input into a shader or potentially generated by any instruction in a shader
	// may be flushed to 0.
	if (originalFloat.isDenorm() && returnedFloat.isZero())
		return true;

	// Inf are always turned into Inf with the same sign, too.
	if (originalFloat.isInf())
	{
		if (returnedFloat.isInf() && originalFloat.signBit() == returnedFloat.signBit())
			return true;

		log << TestLog::Message << "Error: expected Inf but returned " << returned << TestLog::EndMessage;
		return false;
	}

	// NaN are always turned into NaN, too.
	if (originalFloat.isNaN())
	{
		if (returnedFloat.isNaN())
			return true;

		log << TestLog::Message << "Error: expected NaN but returned " << returned << TestLog::EndMessage;
		return false;
	}

	// If not matched in the above cases, they should have the same bit pattern.
	if (originalFloat.bits() == returnedFloat.bits())
		return true;

	log << TestLog::Message << "Error: found unmatched 16-bit and 16-bit floats: " << original << " vs " << returned << TestLog::EndMessage;
	return false;
}

bool compare16BitFloat(deUint16 original, float returned, tcu::TestLog & log)
{
	const Float16	originalFloat	(original);
	const Float32	returnedFloat	(returned);

	// Zero are turned into zero under both RTE and RTZ.
	if (originalFloat.isZero())
	{
		if (returnedFloat.isZero())
			return true;

		log << TestLog::Message << "Error: expected zero but returned " << returned << TestLog::EndMessage;
		return false;
	}

	// Any denormalized value input into a shader may be flushed to 0.
	if (originalFloat.isDenorm() && returnedFloat.isZero())
		return true;

	// Inf are always turned into Inf with the same sign, too.
	if (originalFloat.isInf())
	{
		if (returnedFloat.isInf() && originalFloat.signBit() == returnedFloat.signBit())
			return true;

		log << TestLog::Message << "Error: expected Inf but returned " << returned << TestLog::EndMessage;
		return false;
	}

	// NaN are always turned into NaN, too.
	if (originalFloat.isNaN())
	{
		if (returnedFloat.isNaN())
			return true;

		log << TestLog::Message << "Error: expected NaN but returned " << returned << TestLog::EndMessage;
		return false;
	}

	// In all other cases, conversion should be exact.
	const Float32 expectedFloat (deFloat16To32(original));
	if (expectedFloat.bits() == returnedFloat.bits())
		return true;

	log << TestLog::Message << "Error: found unmatched 16-bit and 32-bit floats: " << original << " vs " << returnedFloat.bits() << TestLog::EndMessage;
	return false;
}

bool compare16BitFloat (deFloat16 original, deFloat16 returned, std::string& error)
{
	std::ostringstream	log;
	const Float16		originalFloat	(original);
	const Float16		returnedFloat	(returned);

	if (originalFloat.isZero())
	{
		if (returnedFloat.isZero())
			return true;

		log << "Error: expected zero but returned " << std::hex << "0x" << returned << " (" << returnedFloat.asFloat() << ")";
		error = log.str();
		return false;
	}

	// Any denormalized value input into a shader may be flushed to 0.
	if (originalFloat.isDenorm() && returnedFloat.isZero())
		return true;

	// Inf are always turned into Inf with the same sign, too.
	if (originalFloat.isInf())
	{
		if (returnedFloat.isInf() && originalFloat.signBit() == returnedFloat.signBit())
			return true;

		log << "Error: expected Inf but returned " << std::hex << "0x" << returned << " (" << returnedFloat.asFloat() << ")";
		error = log.str();
		return false;
	}

	// NaN are always turned into NaN, too.
	if (originalFloat.isNaN())
	{
		if (returnedFloat.isNaN())
			return true;

		log << "Error: expected NaN but returned " << std::hex << "0x" << returned << " (" << returnedFloat.asFloat() << ")";
		error = log.str();
		return false;
	}

	// Any denormalized value potentially generated by any instruction in a shader may be flushed to 0.
	if (originalFloat.isDenorm() && returnedFloat.isZero())
		return true;

	// If not matched in the above cases, they should have the same bit pattern.
	if (originalFloat.bits() == returnedFloat.bits())
		return true;

	log << "Error: found unmatched 16-bit and 16-bit floats: 0x"
		<< std::hex << original << " <=> 0x" << returned
		<< " (" << originalFloat.asFloat() << " <=> " << returnedFloat.asFloat() << ")";
	error = log.str();
	return false;
}

bool compare16BitFloat64 (double original, deUint16 returned, RoundingModeFlags flags, tcu::TestLog& log)
{
	// We only support RTE, RTZ, or both.
	DE_ASSERT(static_cast<int>(flags) > 0 && static_cast<int>(flags) < 4);

	const Float64	originalFloat	(original);
	const Float16	returnedFloat	(returned);

	// Zero are turned into zero under both RTE and RTZ.
	if (originalFloat.isZero())
	{
		if (returnedFloat.isZero())
			return true;

		log << TestLog::Message << "Error: expected zero but returned " << returned << TestLog::EndMessage;
		return false;
	}

	// Any denormalized value input into a shader may be flushed to 0.
	if (originalFloat.isDenorm() && returnedFloat.isZero())
		return true;

	// Inf are always turned into Inf with the same sign, too.
	if (originalFloat.isInf())
	{
		if (returnedFloat.isInf() && originalFloat.signBit() == returnedFloat.signBit())
			return true;

		log << TestLog::Message << "Error: expected Inf but returned " << returned << TestLog::EndMessage;
		return false;
	}

	// NaN are always turned into NaN, too.
	if (originalFloat.isNaN())
	{
		if (returnedFloat.isNaN())
			return true;

		log << TestLog::Message << "Error: expected NaN but returned " << returned << TestLog::EndMessage;
		return false;
	}

	// Check all rounding modes
	for (int bitNdx = 0; bitNdx < 2; ++bitNdx)
	{
		if ((flags & (1u << bitNdx)) == 0)
			continue;	// This rounding mode is not selected.

		const Float16	expectedFloat	(deFloat64To16Round(original, deRoundingMode(bitNdx)));

		// Any denormalized value potentially generated by any instruction in a shader may be flushed to 0.
		if (expectedFloat.isDenorm() && returnedFloat.isZero())
			return true;

		// If not matched in the above cases, they should have the same bit pattern.
		if (expectedFloat.bits() == returnedFloat.bits())
			return true;
	}

	log << TestLog::Message << "Error: found unmatched 64-bit and 16-bit floats: " << originalFloat.bits() << " vs " << returned << TestLog::EndMessage;
	return false;
}

bool compare32BitFloat (float expected, float returned, tcu::TestLog& log)
{
	const Float32	expectedFloat	(expected);
	const Float32	returnedFloat	(returned);

	// Any denormalized value potentially generated by any instruction in a shader may be flushed to 0.
	if (expectedFloat.isDenorm() && returnedFloat.isZero())
		return true;

	{
		const Float16	originalFloat	(deFloat32To16(expected));

		// Any denormalized value input into a shader may be flushed to 0.
		if (originalFloat.isDenorm() && returnedFloat.isZero())
			return true;
	}

	if (expectedFloat.isNaN())
	{
		if (returnedFloat.isNaN())
			return true;

		log << TestLog::Message << "Error: expected NaN but returned " << returned << TestLog::EndMessage;
		return false;
	}

	if (returned == expected)
		return true;

	log << TestLog::Message << "Error: found unmatched 32-bit float: expected " << expectedFloat.bits() << " vs. returned " << returnedFloat.bits() << TestLog::EndMessage;
	return false;
}

bool compare64BitFloat (double expected, double returned, tcu::TestLog& log)
{
	const Float64	expectedDouble	(expected);
	const Float64	returnedDouble	(returned);

	// Any denormalized value potentially generated by any instruction in a shader may be flushed to 0.
	if (expectedDouble.isDenorm() && returnedDouble.isZero())
		return true;

	{
		const Float16	originalDouble	(deFloat64To16(expected));

		// Any denormalized value input into a shader may be flushed to 0.
		if (originalDouble.isDenorm() && returnedDouble.isZero())
			return true;
	}

	if (expectedDouble.isNaN())
	{
		if (returnedDouble.isNaN())
			return true;

		log << TestLog::Message << "Error: expected NaN but returned " << returned << TestLog::EndMessage;
		return false;
	}

	if (returned == expected)
		return true;

	log << TestLog::Message << "Error: found unmatched 64-bit float: expected " << expectedDouble.bits() << " vs. returned " << returnedDouble.bits() << TestLog::EndMessage;
	return false;
}

Move<VkBuffer> createBufferForResource (const DeviceInterface& vk, const VkDevice vkDevice, const Resource& resource, deUint32 queueFamilyIndex)
{
	const vk::VkDescriptorType resourceType = resource.getDescriptorType();

	vector<deUint8>	resourceBytes;
	resource.getBytes(resourceBytes);

	const VkBufferCreateInfo	resourceBufferParams	=
	{
		VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,								// sType
		DE_NULL,															// pNext
		(VkBufferCreateFlags)0,												// flags
		(VkDeviceSize)resourceBytes.size(),									// size
		(VkBufferUsageFlags)getMatchingBufferUsageFlagBit(resourceType),	// usage
		VK_SHARING_MODE_EXCLUSIVE,											// sharingMode
		1u,																	// queueFamilyCount
		&queueFamilyIndex,													// pQueueFamilyIndices
	};

	return createBuffer(vk, vkDevice, &resourceBufferParams);
}

Move<VkImage> createImageForResource (const DeviceInterface& vk, const VkDevice vkDevice, const Resource& resource, VkFormat inputFormat, deUint32 queueFamilyIndex)
{
	const VkImageCreateInfo	resourceImageParams	=
	{
		VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,								//	VkStructureType		sType;
		DE_NULL,															//	const void*			pNext;
		0u,																	//	VkImageCreateFlags	flags;
		VK_IMAGE_TYPE_2D,													//	VkImageType			imageType;
		inputFormat,														//	VkFormat			format;
		{ 8, 8, 1 },														//	VkExtent3D			extent;
		1u,																	//	deUint32			mipLevels;
		1u,																	//	deUint32			arraySize;
		VK_SAMPLE_COUNT_1_BIT,												//	deUint32			samples;
		VK_IMAGE_TILING_OPTIMAL,											//	VkImageTiling		tiling;
		getMatchingImageUsageFlags(resource.getDescriptorType()),			//	VkImageUsageFlags	usage;
		VK_SHARING_MODE_EXCLUSIVE,											//	VkSharingMode		sharingMode;
		1u,																	//	deUint32			queueFamilyCount;
		&queueFamilyIndex,													//	const deUint32*		pQueueFamilyIndices;
		VK_IMAGE_LAYOUT_UNDEFINED											//	VkImageLayout		initialLayout;
	};

	return createImage(vk, vkDevice, &resourceImageParams);
}

void copyBufferToImage (const DeviceInterface& vk, const VkDevice& device, const VkQueue& queue, VkCommandBuffer cmdBuffer, VkBuffer buffer, VkImage image, VkImageAspectFlags aspect)
{
	const VkBufferImageCopy			copyRegion			=
	{
		0u,												// VkDeviceSize				bufferOffset;
		0u,												// deUint32					bufferRowLength;
		0u,												// deUint32					bufferImageHeight;
		{
			aspect,											// VkImageAspectFlags		aspect;
			0u,												// deUint32					mipLevel;
			0u,												// deUint32					baseArrayLayer;
			1u,												// deUint32					layerCount;
		},												// VkImageSubresourceLayers	imageSubresource;
		{ 0, 0, 0 },									// VkOffset3D				imageOffset;
		{ 8, 8, 1 }										// VkExtent3D				imageExtent;
	};

	// Copy buffer to image
	beginCommandBuffer(vk, cmdBuffer);

	copyBufferToImage(vk, cmdBuffer, buffer, VK_WHOLE_SIZE, vector<VkBufferImageCopy>(1, copyRegion), aspect, 1u, 1u, image, VK_IMAGE_LAYOUT_GENERAL, VK_PIPELINE_STAGE_COMPUTE_SHADER_BIT);

	endCommandBuffer(vk, cmdBuffer);

	submitCommandsAndWait(vk, device, queue, cmdBuffer);
}

VkImageAspectFlags getImageAspectFlags (VkFormat format)
{
	const tcu::TextureFormat::ChannelOrder	channelOrder	= vk::mapVkFormat(format).order;
	VkImageAspectFlags						aspectFlags		= (VkImageAspectFlags)0u;

	if (tcu::hasDepthComponent(channelOrder))
		aspectFlags |= VK_IMAGE_ASPECT_DEPTH_BIT;

	if (tcu::hasStencilComponent(channelOrder))
		aspectFlags |= VK_IMAGE_ASPECT_STENCIL_BIT;

	if (!aspectFlags)
		aspectFlags |= VK_IMAGE_ASPECT_COLOR_BIT;

	return aspectFlags;
};

TestStatus runAndVerifyDefaultPipeline (Context& context, InstanceContext instance)
{
	if (getMinRequiredVulkanVersion(instance.resources.spirvVersion) > context.getUsedApiVersion())
	{
		TCU_THROW(NotSupportedError, string("Vulkan higher than or equal to " + getVulkanName(getMinRequiredVulkanVersion(instance.resources.spirvVersion)) + " is required for this test to run").c_str());
	}

	const DeviceInterface&						vk						= context.getDeviceInterface();
	const InstanceInterface&					vkInstance				= context.getInstanceInterface();
	const VkPhysicalDevice						vkPhysicalDevice		= context.getPhysicalDevice();
	const deUint32								queueFamilyIndex		= context.getUniversalQueueFamilyIndex();
	const VkQueue								queue					= context.getUniversalQueue();
	const VkDevice&								device					= context.getDevice();
	Allocator&									allocator				= context.getDefaultAllocator();
	vector<ModuleHandleSp>						modules;
	map<VkShaderStageFlagBits, VkShaderModule>	moduleByStage;
	const tcu::UVec2							renderSize				(256, 256);
	const int									testSpecificSeed		= 31354125;
	const int									seed					= context.getTestContext().getCommandLine().getBaseSeed() ^ testSpecificSeed;
	bool										supportsGeometry		= false;
	bool										supportsTessellation	= false;
	bool										hasGeometry				= false;
	bool										hasTessellation			= false;
	const bool									hasPushConstants		= !instance.pushConstants.empty();
	const deUint32								numResources			= static_cast<deUint32>(instance.resources.inputs.size() + instance.resources.outputs.size());
	const bool									needInterface			= !instance.interfaces.empty();
	const VkPhysicalDeviceFeatures&				features				= context.getDeviceFeatures();
	const Vec4									defaulClearColor		(0.125f, 0.25f, 0.75f, 1.0f);

	supportsGeometry		= features.geometryShader == VK_TRUE;
	supportsTessellation	= features.tessellationShader == VK_TRUE;
	hasGeometry				= (instance.requiredStages & VK_SHADER_STAGE_GEOMETRY_BIT);
	hasTessellation			= (instance.requiredStages & VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT) ||
								(instance.requiredStages & VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT);

	if (hasGeometry && !supportsGeometry)
	{
		TCU_THROW(NotSupportedError, "Geometry not supported");
	}

	if (hasTessellation && !supportsTessellation)
	{
		TCU_THROW(NotSupportedError, "Tessellation not supported");
	}

	// Check all required extensions are supported
	for (std::vector<std::string>::const_iterator i = instance.requiredDeviceExtensions.begin(); i != instance.requiredDeviceExtensions.end(); ++i)
	{
		if (!de::contains(context.getDeviceExtensions().begin(), context.getDeviceExtensions().end(), *i))
			TCU_THROW(NotSupportedError, (std::string("Extension not supported: ") + *i).c_str());
	}

	// Core features
	{
		const VkShaderStageFlags		vertexPipelineStoresAndAtomicsAffected	= vk::VK_SHADER_STAGE_VERTEX_BIT
																				| vk::VK_SHADER_STAGE_TESSELLATION_EVALUATION_BIT
																				| vk::VK_SHADER_STAGE_TESSELLATION_CONTROL_BIT
																				| vk::VK_SHADER_STAGE_GEOMETRY_BIT;
		const char*						unsupportedFeature						= DE_NULL;
		vk::VkPhysicalDeviceFeatures	localRequiredCoreFeatures				= instance.requestedFeatures.coreFeatures;

		// reset fragment stores and atomics feature requirement
		if ((localRequiredCoreFeatures.fragmentStoresAndAtomics != DE_FALSE) &&
			(instance.customizedStages & vk::VK_SHADER_STAGE_FRAGMENT_BIT) == 0)
		{
			localRequiredCoreFeatures.fragmentStoresAndAtomics = DE_FALSE;
		}

		// reset vertex pipeline stores and atomics feature requirement
		if (localRequiredCoreFeatures.vertexPipelineStoresAndAtomics != DE_FALSE &&
			(instance.customizedStages & vertexPipelineStoresAndAtomicsAffected) == 0)
		{
			localRequiredCoreFeatures.vertexPipelineStoresAndAtomics = DE_FALSE;
		}

		if (!isCoreFeaturesSupported(context, localRequiredCoreFeatures, &unsupportedFeature))
			TCU_THROW(NotSupportedError, std::string("At least following requested core feature is not supported: ") + unsupportedFeature);
	}

	// Extension features
	{
		// 8bit storage features
		{
			if (!is8BitStorageFeaturesSupported(context, instance.requestedFeatures.ext8BitStorage))
				TCU_THROW(NotSupportedError, "Requested 8bit storage features not supported");
		}

		// 16bit storage features
		{
			if (!is16BitStorageFeaturesSupported(context, instance.requestedFeatures.ext16BitStorage))
				TCU_THROW(NotSupportedError, "Requested 16bit storage features not supported");
		}

		// Variable Pointers features
		{
			if (!isVariablePointersFeaturesSupported(context, instance.requestedFeatures.extVariablePointers))
				TCU_THROW(NotSupportedError, "Requested Variable Pointer features not supported");
		}

		// Float16/Int8 shader features
		{
			if (!isFloat16Int8FeaturesSupported(context, instance.requestedFeatures.extFloat16Int8))
				TCU_THROW(NotSupportedError, "Requested 16bit float or 8bit int feature not supported");
		}
	}

	// FloatControls features
	{
		if (!isFloatControlsFeaturesSupported(context, instance.requestedFeatures.floatControlsProperties))
			TCU_THROW(NotSupportedError, "Requested Float Controls features not supported");
	}

	de::Random(seed).shuffle(instance.inputColors, instance.inputColors+4);
	de::Random(seed).shuffle(instance.outputColors, instance.outputColors+4);
	const Vec4								vertexData[]			=
	{
		// Upper left corner:
		Vec4(-1.0f, -1.0f, 0.0f, 1.0f), instance.inputColors[0].toVec(),	//1
		Vec4(-0.5f, -1.0f, 0.0f, 1.0f), instance.inputColors[0].toVec(),	//2
		Vec4(-1.0f, -0.5f, 0.0f, 1.0f), instance.inputColors[0].toVec(),	//3

		// Upper right corner:
		Vec4(+0.5f, -1.0f, 0.0f, 1.0f), instance.inputColors[1].toVec(),	//4
		Vec4(+1.0f, -1.0f, 0.0f, 1.0f), instance.inputColors[1].toVec(),	//5
		Vec4(+1.0f, -0.5f, 0.0f, 1.0f), instance.inputColors[1].toVec(),	//6

		// Lower left corner:
		Vec4(-1.0f, +0.5f, 0.0f, 1.0f), instance.inputColors[2].toVec(),	//7
		Vec4(-0.5f, +1.0f, 0.0f, 1.0f), instance.inputColors[2].toVec(),	//8
		Vec4(-1.0f, +1.0f, 0.0f, 1.0f), instance.inputColors[2].toVec(),	//9

		// Lower right corner:
		Vec4(+1.0f, +0.5f, 0.0f, 1.0f), instance.inputColors[3].toVec(),	//10
		Vec4(+1.0f, +1.0f, 0.0f, 1.0f), instance.inputColors[3].toVec(),	//11
		Vec4(+0.5f, +1.0f, 0.0f, 1.0f), instance.inputColors[3].toVec(),	//12

		// The rest is used only renderFullSquare specified. Fills area already filled with clear color
		// Left 1
		Vec4(-1.0f, -0.5f, 0.0f, 1.0f), defaulClearColor,					//3
		Vec4(-0.5f, -1.0f, 0.0f, 1.0f), defaulClearColor,					//2
		Vec4(-1.0f, +0.5f, 0.0f, 1.0f), defaulClearColor,					//7

		// Left 2
		Vec4(-1.0f, +0.5f, 0.0f, 1.0f), defaulClearColor,					//7
		Vec4(-0.5f, -1.0f, 0.0f, 1.0f), defaulClearColor,					//2
		Vec4(-0.5f, +1.0f, 0.0f, 1.0f), defaulClearColor,					//8

		// Left-Center
		Vec4(-0.5f, +1.0f, 0.0f, 1.0f), defaulClearColor,					//8
		Vec4(-0.5f, -1.0f, 0.0f, 1.0f), defaulClearColor,					//2
		Vec4(+0.5f, -1.0f, 0.0f, 1.0f), defaulClearColor,					//4

		// Right-Center
		Vec4(+0.5f, -1.0f, 0.0f, 1.0f), defaulClearColor,					//4
		Vec4(+0.5f, +1.0f, 0.0f, 1.0f), defaulClearColor,					//12
		Vec4(-0.5f, +1.0f, 0.0f, 1.0f), defaulClearColor,					//8

		// Right 2
		Vec4(+0.5f, -1.0f, 0.0f, 1.0f), defaulClearColor,					//4
		Vec4(+1.0f, -0.5f, 0.0f, 1.0f), defaulClearColor,					//6
		Vec4(+0.5f, +1.0f, 0.0f, 1.0f), defaulClearColor,					//12

		// Right 1
		Vec4(+0.5f, +1.0f, 0.0f, 1.0f), defaulClearColor,					//12
		Vec4(+1.0f, -0.5f, 0.0f, 1.0f), defaulClearColor,					//6
		Vec4(+1.0f, +0.5f, 0.0f, 1.0f), defaulClearColor,					//10
	};

	const size_t							singleVertexDataSize	= 2 * sizeof(Vec4);
	const size_t							vertexCount				= instance.renderFullSquare ? sizeof(vertexData) / singleVertexDataSize : 4*3;
	const size_t							vertexDataSize			= vertexCount * singleVertexDataSize;

	Move<VkBuffer>							vertexInputBuffer;
	de::MovePtr<Allocation>					vertexInputMemory;
	Move<VkBuffer>							fragOutputBuffer;
	de::MovePtr<Allocation>					fragOutputMemory;
	Move<VkImage>							fragOutputImage;
	de::MovePtr<Allocation>					fragOutputImageMemory;
	Move<VkImageView>						fragOutputImageView;

	const VkBufferCreateInfo				vertexBufferParams		=
	{
		VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,	//	VkStructureType		sType;
		DE_NULL,								//	const void*			pNext;
		0u,										//	VkBufferCreateFlags	flags;
		(VkDeviceSize)vertexDataSize,			//	VkDeviceSize		size;
		VK_BUFFER_USAGE_VERTEX_BUFFER_BIT,		//	VkBufferUsageFlags	usage;
		VK_SHARING_MODE_EXCLUSIVE,				//	VkSharingMode		sharingMode;
		1u,										//	deUint32			queueFamilyCount;
		&queueFamilyIndex,						//	const deUint32*		pQueueFamilyIndices;
	};
	const Unique<VkBuffer>					vertexBuffer			(createBuffer(vk, device, &vertexBufferParams));
	const UniquePtr<Allocation>				vertexBufferMemory		(allocator.allocate(getBufferMemoryRequirements(vk, device, *vertexBuffer), MemoryRequirement::HostVisible));

	VK_CHECK(vk.bindBufferMemory(device, *vertexBuffer, vertexBufferMemory->getMemory(), vertexBufferMemory->getOffset()));

	const VkDeviceSize						imageSizeBytes			= (VkDeviceSize)(sizeof(deUint32)*renderSize.x()*renderSize.y());
	const VkBufferCreateInfo				readImageBufferParams	=
	{
		VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,		//	VkStructureType		sType;
		DE_NULL,									//	const void*			pNext;
		0u,											//	VkBufferCreateFlags	flags;
		imageSizeBytes,								//	VkDeviceSize		size;
		VK_BUFFER_USAGE_TRANSFER_DST_BIT,			//	VkBufferUsageFlags	usage;
		VK_SHARING_MODE_EXCLUSIVE,					//	VkSharingMode		sharingMode;
		1u,											//	deUint32			queueFamilyCount;
		&queueFamilyIndex,							//	const deUint32*		pQueueFamilyIndices;
	};
	const Unique<VkBuffer>					readImageBuffer			(createBuffer(vk, device, &readImageBufferParams));
	const UniquePtr<Allocation>				readImageBufferMemory	(allocator.allocate(getBufferMemoryRequirements(vk, device, *readImageBuffer), MemoryRequirement::HostVisible));

	VK_CHECK(vk.bindBufferMemory(device, *readImageBuffer, readImageBufferMemory->getMemory(), readImageBufferMemory->getOffset()));

	VkImageCreateInfo						imageParams				=
	{
		VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO,									//	VkStructureType		sType;
		DE_NULL,																//	const void*			pNext;
		0u,																		//	VkImageCreateFlags	flags;
		VK_IMAGE_TYPE_2D,														//	VkImageType			imageType;
		VK_FORMAT_R8G8B8A8_UNORM,												//	VkFormat			format;
		{ renderSize.x(), renderSize.y(), 1 },									//	VkExtent3D			extent;
		1u,																		//	deUint32			mipLevels;
		1u,																		//	deUint32			arraySize;
		VK_SAMPLE_COUNT_1_BIT,													//	deUint32			samples;
		VK_IMAGE_TILING_OPTIMAL,												//	VkImageTiling		tiling;
		VK_IMAGE_USAGE_COLOR_ATTACHMENT_BIT|VK_IMAGE_USAGE_TRANSFER_SRC_BIT,	//	VkImageUsageFlags	usage;
		VK_SHARING_MODE_EXCLUSIVE,												//	VkSharingMode		sharingMode;
		1u,																		//	deUint32			queueFamilyCount;
		&queueFamilyIndex,														//	const deUint32*		pQueueFamilyIndices;
		VK_IMAGE_LAYOUT_UNDEFINED,												//	VkImageLayout		initialLayout;
	};

	const Unique<VkImage>					image					(createImage(vk, device, &imageParams));
	const UniquePtr<Allocation>				imageMemory				(allocator.allocate(getImageMemoryRequirements(vk, device, *image), MemoryRequirement::Any));

	VK_CHECK(vk.bindImageMemory(device, *image, imageMemory->getMemory(), imageMemory->getOffset()));

	if (needInterface)
	{
		// The pipeline renders four triangles, each with three vertexes.
		// Test instantialization only provides four data points, each
		// for one triangle. So we need allocate space of three times of
		// input buffer's size.
		vector<deUint8>							inputBufferBytes;
		instance.interfaces.getInputBuffer()->getBytes(inputBufferBytes);

		const deUint32							inputNumBytes			= deUint32(inputBufferBytes.size() * 3);
		// Create an additional buffer and backing memory for one input variable.
		const VkBufferCreateInfo				vertexInputParams		=
		{
			VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,		//	VkStructureType		sType;
			DE_NULL,									//	const void*			pNext;
			0u,											//	VkBufferCreateFlags	flags;
			inputNumBytes,								//	VkDeviceSize		size;
			VK_BUFFER_USAGE_VERTEX_BUFFER_BIT,			//	VkBufferUsageFlags	usage;
			VK_SHARING_MODE_EXCLUSIVE,					//	VkSharingMode		sharingMode;
			1u,											//	deUint32			queueFamilyCount;
			&queueFamilyIndex,							//	const deUint32*		pQueueFamilyIndices;
		};

		vertexInputBuffer = createBuffer(vk, device, &vertexInputParams);
		vertexInputMemory = allocator.allocate(getBufferMemoryRequirements(vk, device, *vertexInputBuffer), MemoryRequirement::HostVisible);
		VK_CHECK(vk.bindBufferMemory(device, *vertexInputBuffer, vertexInputMemory->getMemory(), vertexInputMemory->getOffset()));

		// Create an additional buffer and backing memory for an output variable.
		const VkDeviceSize						fragOutputImgSize		= (VkDeviceSize)(instance.interfaces.getOutputType().getNumBytes() * renderSize.x() * renderSize.y());
		const VkBufferCreateInfo				fragOutputParams		=
		{
			VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO,		//	VkStructureType		sType;
			DE_NULL,									//	const void*			pNext;
			0u,											//	VkBufferCreateFlags	flags;
			fragOutputImgSize,							//	VkDeviceSize		size;
			VK_BUFFER_USAGE_TRANSFER_DST_BIT,			//	VkBufferUsageFlags	usage;
			VK_SHARING_MODE_EXCLUSIVE,					//	VkSharingMode		sharingMode;
			1u,											//	deUint32			queueFamilyCount;
			&queueFamilyIndex,							//	const deUint32*		pQueueFamilyIndices;
		};
		fragOutputBuffer = createBuffer(vk, device, &fragOutputParams);
		fragOutputMemory = allocator.allocate(getBufferMemoryRequirements(vk, device, *fragOutputBuffer), MemoryRequirement::HostVisible);
		VK_CHECK(vk.bindBufferMemory(device, *fragOutputBuffer, fragOutputMemory->getMemory(), fragOutputMemory->getOffset()));

		// Create an additional image and backing memory for attachment.
		// Reuse the previous imageParams since we only need to change the image format.
		imageParams.format		= instance.interfaces.getOutputType().getVkFormat();

		// Check the usage bits on the given image format are supported.
		requireFormatUsageSupport(vkInstance, vkPhysicalDevice, imageParams.format, imageParams.tiling, imageParams.usage);

		fragOutputImage			= createImage(vk, device, &imageParams);
		fragOutputImageMemory	= allocator.allocate(getImageMemoryRequirements(vk, device, *fragOutputImage), MemoryRequirement::Any);

		VK_CHECK(vk.bindImageMemory(device, *fragOutputImage, fragOutputImageMemory->getMemory(), fragOutputImageMemory->getOffset()));
	}

	vector<VkAttachmentDescription>			colorAttDescs;
	vector<VkAttachmentReference>			colorAttRefs;
	{
		const VkAttachmentDescription		attDesc					=
		{
			0u,												//	VkAttachmentDescriptionFlags	flags;
			VK_FORMAT_R8G8B8A8_UNORM,						//	VkFormat						format;
			VK_SAMPLE_COUNT_1_BIT,							//	deUint32						samples;
			VK_ATTACHMENT_LOAD_OP_CLEAR,					//	VkAttachmentLoadOp				loadOp;
			VK_ATTACHMENT_STORE_OP_STORE,					//	VkAttachmentStoreOp				storeOp;
			VK_ATTACHMENT_LOAD_OP_DONT_CARE,				//	VkAttachmentLoadOp				stencilLoadOp;
			VK_ATTACHMENT_STORE_OP_DONT_CARE,				//	VkAttachmentStoreOp				stencilStoreOp;
			VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,		//	VkImageLayout					initialLayout;
			VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,		//	VkImageLayout					finalLayout;
		};
		colorAttDescs.push_back(attDesc);

		const VkAttachmentReference			attRef					=
		{
			0u,												//	deUint32		attachment;
			VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,		//	VkImageLayout	layout;
		};
		colorAttRefs.push_back(attRef);
	}

	if (needInterface)
	{
		const VkAttachmentDescription		attDesc					=
		{
			0u,													//	VkAttachmentDescriptionFlags	flags;
			instance.interfaces.getOutputType().getVkFormat(),	//	VkFormat						format;
			VK_SAMPLE_COUNT_1_BIT,								//	deUint32						samples;
			VK_ATTACHMENT_LOAD_OP_CLEAR,						//	VkAttachmentLoadOp				loadOp;
			VK_ATTACHMENT_STORE_OP_STORE,						//	VkAttachmentStoreOp				storeOp;
			VK_ATTACHMENT_LOAD_OP_DONT_CARE,					//	VkAttachmentLoadOp				stencilLoadOp;
			VK_ATTACHMENT_STORE_OP_DONT_CARE,					//	VkAttachmentStoreOp				stencilStoreOp;
			VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,			//	VkImageLayout					initialLayout;
			VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,			//	VkImageLayout					finalLayout;
		};
		colorAttDescs.push_back(attDesc);

		const VkAttachmentReference			attRef					=
		{
			1u,												//	deUint32		attachment;
			VK_IMAGE_LAYOUT_COLOR_ATTACHMENT_OPTIMAL,		//	VkImageLayout	layout;
		};
		colorAttRefs.push_back(attRef);
	}

	VkSubpassDescription					subpassDesc				=
	{
		0u,												//	VkSubpassDescriptionFlags		flags;
		VK_PIPELINE_BIND_POINT_GRAPHICS,				//	VkPipelineBindPoint				pipelineBindPoint;
		0u,												//	deUint32						inputCount;
		DE_NULL,										//	const VkAttachmentReference*	pInputAttachments;
		1u,												//	deUint32						colorCount;
		colorAttRefs.data(),							//	const VkAttachmentReference*	pColorAttachments;
		DE_NULL,										//	const VkAttachmentReference*	pResolveAttachments;
		DE_NULL,										//	const VkAttachmentReference*	pDepthStencilAttachment;
		0u,												//	deUint32						preserveCount;
		DE_NULL,										//	const VkAttachmentReference*	pPreserveAttachments;

	};
	VkRenderPassCreateInfo					renderPassParams		=
	{
		VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO,		//	VkStructureType					sType;
		DE_NULL,										//	const void*						pNext;
		(VkRenderPassCreateFlags)0,
		1u,												//	deUint32						attachmentCount;
		colorAttDescs.data(),							//	const VkAttachmentDescription*	pAttachments;
		1u,												//	deUint32						subpassCount;
		&subpassDesc,									//	const VkSubpassDescription*		pSubpasses;
		0u,												//	deUint32						dependencyCount;
		DE_NULL,										//	const VkSubpassDependency*		pDependencies;
	};

	if (needInterface)
	{
		subpassDesc.colorAttachmentCount += 1;
		renderPassParams.attachmentCount += 1;
	}

	const Unique<VkRenderPass>				renderPass				(createRenderPass(vk, device, &renderPassParams));

	const VkImageViewCreateInfo				colorAttViewParams		=
	{
		VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO,		//	VkStructureType				sType;
		DE_NULL,										//	const void*					pNext;
		0u,												//	VkImageViewCreateFlags		flags;
		*image,											//	VkImage						image;
		VK_IMAGE_VIEW_TYPE_2D,							//	VkImageViewType				viewType;
		VK_FORMAT_R8G8B8A8_UNORM,						//	VkFormat					format;
		{
			VK_COMPONENT_SWIZZLE_R,
			VK_COMPONENT_SWIZZLE_G,
			VK_COMPONENT_SWIZZLE_B,
			VK_COMPONENT_SWIZZLE_A
		},												//	VkChannelMapping			channels;
		{
			VK_IMAGE_ASPECT_COLOR_BIT,						//	VkImageAspectFlags	aspectMask;
			0u,												//	deUint32			baseMipLevel;
			1u,												//	deUint32			mipLevels;
			0u,												//	deUint32			baseArrayLayer;
			1u,												//	deUint32			arraySize;
		},												//	VkImageSubresourceRange		subresourceRange;
	};
	const Unique<VkImageView>				colorAttView			(createImageView(vk, device, &colorAttViewParams));
	const VkImageAspectFlags				inputImageAspect		= getImageAspectFlags(instance.resources.inputFormat);

	vector<VkImageView>						attViews;
	attViews.push_back(*colorAttView);

	// Handle resources requested by the test instantiation.
	const deUint32							numInResources			= static_cast<deUint32>(instance.resources.inputs.size());
	const deUint32							numOutResources			= static_cast<deUint32>(instance.resources.outputs.size());
	// These variables should be placed out of the following if block to avoid deallocation after out of scope.
	vector<AllocationSp>					inResourceMemories;
	vector<AllocationSp>					outResourceMemories;
	vector<BufferHandleSp>					inResourceBuffers;
	vector<BufferHandleSp>					outResourceBuffers;
	vector<ImageHandleSp>					inResourceImages;
	vector<ImageViewHandleSp>				inResourceImageViews;
	vector<SamplerHandleSp>					inResourceSamplers;
	Move<VkDescriptorPool>					descriptorPool;
	Move<VkDescriptorSetLayout>				setLayout;
	VkDescriptorSetLayout					rawSetLayout			= DE_NULL;
	VkDescriptorSet							rawSet					= DE_NULL;

	const Unique<VkCommandPool>				cmdPool					(createCommandPool(vk, device, VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT, queueFamilyIndex));

	// Command buffer
	const Unique<VkCommandBuffer>			cmdBuf					(allocateCommandBuffer(vk, device, *cmdPool, VK_COMMAND_BUFFER_LEVEL_PRIMARY));

	if (numResources != 0)
	{
		vector<VkDescriptorSetLayoutBinding>	setLayoutBindings;
		vector<VkDescriptorPoolSize>			poolSizes;

		setLayoutBindings.reserve(numResources);
		poolSizes.reserve(numResources);

		// Process all input resources.
		for (deUint32 inputNdx = 0; inputNdx < numInResources; ++inputNdx)
		{
			const Resource&	resource	= instance.resources.inputs[inputNdx];

			const bool		hasImage	= (resource.getDescriptorType() == VK_DESCRIPTOR_TYPE_STORAGE_IMAGE)	||
										  (resource.getDescriptorType() == VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE)	||
										  (resource.getDescriptorType() == VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER);

			const bool		hasSampler	= (resource.getDescriptorType() == VK_DESCRIPTOR_TYPE_SAMPLED_IMAGE)	||
										  (resource.getDescriptorType() == VK_DESCRIPTOR_TYPE_SAMPLER)			||
										  (resource.getDescriptorType() == VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER);

			// Resource is a buffer
			if (!hasImage && !hasSampler)
			{
				Move<VkBuffer>					resourceBuffer			= createBufferForResource(vk, device, resource, queueFamilyIndex);
				de::MovePtr<Allocation>			resourceMemory			= allocator.allocate(getBufferMemoryRequirements(vk, device, *resourceBuffer), MemoryRequirement::HostVisible);

				VK_CHECK(vk.bindBufferMemory(device, *resourceBuffer, resourceMemory->getMemory(), resourceMemory->getOffset()));

				// Copy data to memory.
				{
					const VkMappedMemoryRange		range					=
					{
						VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE,				//	VkStructureType	sType;
						DE_NULL,											//	const void*		pNext;
						resourceMemory->getMemory(),						//	VkDeviceMemory	mem;
						0,													//	VkDeviceSize	offset;
						VK_WHOLE_SIZE,										//	VkDeviceSize	size;
					};

					vector<deUint8>					resourceBytes;
					resource.getBytes(resourceBytes);

					deMemcpy(resourceMemory->getHostPtr(), &resourceBytes.front(), resourceBytes.size());
					VK_CHECK(vk.flushMappedMemoryRanges(device, 1u, &range));
				}

				inResourceMemories.push_back(AllocationSp(resourceMemory.release()));
				inResourceBuffers.push_back(BufferHandleSp(new BufferHandleUp(resourceBuffer)));
			}
			// Resource is an image
			else if (hasImage)
			{
				Move<VkBuffer>					resourceBuffer			= createBufferForResource(vk, device, resource, queueFamilyIndex);
				de::MovePtr<Allocation>			resourceMemory			= allocator.allocate(getBufferMemoryRequirements(vk, device, *resourceBuffer), MemoryRequirement::HostVisible);

				VK_CHECK(vk.bindBufferMemory(device, *resourceBuffer, resourceMemory->getMemory(), resourceMemory->getOffset()));

				// Copy data to memory.
				{
					const VkMappedMemoryRange		range					=
					{
						VK_STRUCTURE_TYPE_MAPPED_MEMORY_RANGE,				//	VkStructureType	sType;
						DE_NULL,											//	const void*		pNext;
						resourceMemory->getMemory(),						//	VkDeviceMemory	mem;
						0,													//	VkDeviceSize	offset;
						VK_WHOLE_SIZE,										//	VkDeviceSize	size;
					};

					vector<deUint8>					resourceBytes;
					resource.getBytes(resourceBytes);

					deMemcpy(resourceMemory->getHostPtr(), &resourceBytes.front(), resourceBytes.size());
					VK_CHECK(vk.flushMappedMemoryRanges(device, 1u, &range));
				}

				Move<VkImage>					resourceImage			= createImageForResource(vk, device, resource, instance.resources.inputFormat, queueFamilyIndex);
				de::MovePtr<Allocation>			resourceImageMemory		= allocator.allocate(getImageMemoryRequirements(vk, device, *resourceImage), MemoryRequirement::Any);

				VK_CHECK(vk.bindImageMemory(device, *resourceImage, resourceImageMemory->getMemory(), resourceImageMemory->getOffset()));

				copyBufferToImage(vk, device, queue, *cmdBuf, resourceBuffer.get(), resourceImage.get(), inputImageAspect);

				inResourceMemories.push_back(AllocationSp(resourceImageMemory.release()));
				inResourceImages.push_back(ImageHandleSp(new ImageHandleUp(resourceImage)));
			}

			// Prepare descriptor bindings and pool sizes for creating descriptor set layout and pool.
			const VkDescriptorSetLayoutBinding	binding				=
			{
				inputNdx,											// binding
				resource.getDescriptorType(),						// descriptorType
				1u,													// descriptorCount
				VK_SHADER_STAGE_ALL_GRAPHICS,						// stageFlags