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

   1 /*-------------------------------------------------------------------------
   2  * Vulkan Conformance Tests
   3  * ------------------------
   4  *
   5  * Copyright (c) 2017 Google Inc.
   6  *
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  *
  19  *//*!
  20  * \file
  21  * \brief SPIR-V Assembly Tests for indexing with different bit sizes.
  22  *//*--------------------------------------------------------------------*/
  23
  24 #include "vktSpvAsmIndexingTests.hpp"
  25 #include "vktSpvAsmComputeShaderCase.hpp"
  26 #include "vktSpvAsmComputeShaderTestUtil.hpp"
  27 #include "vktSpvAsmGraphicsShaderTestUtil.hpp"
  28
  29 #include "tcuStringTemplate.hpp"
  30
  31 namespace vkt
  32 {
  33 namespace SpirVAssembly
  34 {
  35
  36 using namespace vk;
  37 using std::map;
  38 using std::string;
  39 using std::vector;
  40 using std::pair;
  41 using tcu::IVec3;
  42 using tcu::RGBA;
  43 using tcu::UVec4;
  44 using tcu::Mat4;
  45 using tcu::StringTemplate;
  46
  47 namespace
  48 {
  49
  50 enum ChainOp
  51 {
  52         CHAIN_OP_ACCESS_CHAIN = 0,
  53         CHAIN_OP_IN_BOUNDS_ACCESS_CHAIN,
  54         CHAIN_OP_PTR_ACCESS_CHAIN,
  55
  56         CHAIN_OP_LAST
  57 };
  58 static const int                                        idxSizes[]                              = { 16, 32, 64 };
  59 static const ComputeTestFeatures        computeTestFeatures[]   = { COMPUTE_TEST_USES_INT16, COMPUTE_TEST_USES_NONE, COMPUTE_TEST_USES_INT64 };
  60 static const string                                     chainOpTestNames[]              = { "opaccesschain", "opinboundsaccesschain", "opptraccesschain" };
  61
  62 struct InputData
  63 {
  64         Mat4    matrix[32][32];
  65 };
  66
  67 void addComputeIndexingTests (tcu::TestCaseGroup* group)
  68 {
  69         tcu::TestContext&       testCtx                 = group->getTestContext();
  70         de::Random                      rnd                             (deStringHash(group->getName()));
  71         const int                       numItems                = 128;
  72         const int                       numStructs              = 2;
  73         const int                       numInputFloats  = (int)sizeof(InputData) / 4 * numStructs;
  74         vector<float>           inputData;
  75         vector<UVec4>           indexSelectorData;
  76
  77         inputData.reserve(numInputFloats);
  78         for (deUint32 numIdx = 0; numIdx < numInputFloats; ++numIdx)
  79                 inputData.push_back(rnd.getFloat());
  80
  81         indexSelectorData.reserve(numItems);
  82         for (deUint32 numIdx = 0; numIdx < numItems; ++numIdx)
  83                 indexSelectorData.push_back(UVec4(rnd.getUint32() % 32, rnd.getUint32() % 32, rnd.getUint32() % 4, rnd.getUint32() % 4));
  84
  85         for (int chainOpIdx = 0; chainOpIdx < CHAIN_OP_LAST; ++chainOpIdx)
  86         {
  87                 for (int idxSizeIdx = 0; idxSizeIdx < DE_LENGTH_OF_ARRAY(idxSizes); ++idxSizeIdx)
  88                 {
  89                         for (int sign = 0; sign < 2; ++sign)
  90                         {
  91                                 const int                                       idxSize                 = idxSizes[idxSizeIdx];
  92                                 const string                            testName                = chainOpTestNames[chainOpIdx] + string(sign == 0 ? "_u" : "_s") + de::toString(idxSize);
  93                                 VulkanFeatures                          vulkanFeatures;
  94                                 map<string, string>                     specs;
  95                                 vector<float>                           outputData;
  96                                 ComputeShaderSpec                       spec;
  97                                 const ComputeTestFeatures       features                = computeTestFeatures[idxSizeIdx];
  98                                 int                                                     element                 = 0;
  99
 100                                 // Index an input buffer containing 2D array of 4x4 matrices. The indices are read from another
 101                                 // input and converted to the desired bit size and sign.
 102                                 const StringTemplate            shaderSource(
 103                                         "                             OpCapability Shader\n"
 104                                         "                             ${intcaps:opt}\n"
 105                                         "                             ${variablepointercaps:opt}\n"
 106                                         "                             ${extensions:opt}\n"
 107                                         "                        %1 = OpExtInstImport \"GLSL.std.450\"\n"
 108                                         "                             OpMemoryModel Logical GLSL450\n"
 109                                         "                             OpEntryPoint GLCompute %main \"main\" %gl_GlobalInvocationID\n"
 110                                         "                             OpExecutionMode %main LocalSize 1 1 1\n"
 111                                         "                             OpSource GLSL 430\n"
 112                                         "                             OpDecorate %gl_GlobalInvocationID BuiltIn GlobalInvocationId\n"
 113                                         "                             OpDecorate %_arr_float_uint_128 ArrayStride 4\n"
 114                                         "                             OpMemberDecorate %Output 0 Offset 0\n"
 115                                         "                             OpDecorate %Output BufferBlock\n"
 116                                         "                             OpDecorate %dataOutput DescriptorSet 0\n"
 117                                         "                             OpDecorate %dataOutput Binding 2\n"
 118                                         "                             OpDecorate %_arr_mat4v4float_uint_32 ArrayStride 64\n"
 119                                         "                             OpDecorate %_arr__arr_mat4v4float_uint_32_uint_32 ArrayStride 2048\n"
 120                                         "                             OpMemberDecorate %InputStruct 0 ColMajor\n"
 121                                         "                             OpMemberDecorate %InputStruct 0 Offset 0\n"
 122                                         "                             OpMemberDecorate %InputStruct 0 MatrixStride 16\n"
 123                                         "                             OpDecorate %InputStructArr ArrayStride 65536\n"
 124                                         "                             OpDecorate %Input ${inputdecoration}\n"
 125                                         "                             OpMemberDecorate %Input 0 Offset 0\n"
 126                                         "                             OpDecorate %dataInput DescriptorSet 0\n"
 127                                         "                             OpDecorate %dataInput Binding 0\n"
 128                                         "                             OpDecorate %_ptr_buffer_InputStruct ArrayStride 65536\n"
 129                                         "                             OpDecorate %_arr_v4uint_uint_128 ArrayStride 16\n"
 130                                         "                             OpMemberDecorate %DataSelector 0 Offset 0\n"
 131                                         "                             OpDecorate %DataSelector BufferBlock\n"
 132                                         "                             OpDecorate %selector DescriptorSet 0\n"
 133                                         "                             OpDecorate %selector Binding 1\n"
 134                                         "                     %void = OpTypeVoid\n"
 135                                         "                        %3 = OpTypeFunction %void\n"
 136                                         "                      %u32 = OpTypeInt 32 0\n"
 137                                         "                      %i32 = OpTypeInt 32 1\n"
 138                                         "${intdecl:opt}"
 139                                         "                    %idx_0 = OpConstant ${idx_int} 0\n"
 140                                         "                    %idx_1 = OpConstant ${idx_int} 1\n"
 141                                         "                    %idx_2 = OpConstant ${idx_int} 2\n"
 142                                         "                    %idx_3 = OpConstant ${idx_int} 3\n"
 143                                         "     %_ptr_Function_uint32 = OpTypePointer Function %u32\n"
 144                                         "                 %v3uint32 = OpTypeVector %u32 3\n"
 145                                         "      %_ptr_Input_v3uint32 = OpTypePointer Input %v3uint32\n"
 146                                         "    %gl_GlobalInvocationID = OpVariable %_ptr_Input_v3uint32 Input\n"
 147                                         "        %_ptr_Input_uint32 = OpTypePointer Input %u32\n"
 148                                         "                    %float = OpTypeFloat 32\n"
 149                                         "                 %uint_128 = OpConstant %u32 128\n"
 150                                         "                  %uint_32 = OpConstant %u32 32\n"
 151                                         "                   %uint_2 = OpConstant %u32 2\n"
 152                                         "      %_arr_float_uint_128 = OpTypeArray %float %uint_128\n"
 153                                         "                   %Output = OpTypeStruct %_arr_float_uint_128\n"
 154                                         "      %_ptr_Uniform_Output = OpTypePointer Uniform %Output\n"
 155                                         "               %dataOutput = OpVariable %_ptr_Uniform_Output Uniform\n"
 156                                         "                  %v4float = OpTypeVector %float 4\n"
 157                                         "              %mat4v4float = OpTypeMatrix %v4float 4\n"
 158                                         " %_arr_mat4v4float_uint_32 = OpTypeArray %mat4v4float %uint_32\n"
 159                                         " %_arr__arr_mat4v4float_uint_32_uint_32 = OpTypeArray %_arr_mat4v4float_uint_32 %uint_32\n"
 160                                         "              %InputStruct = OpTypeStruct %_arr__arr_mat4v4float_uint_32_uint_32\n"
 161                                         "           %InputStructArr = OpTypeArray %InputStruct %uint_2\n"
 162                                         "                    %Input = OpTypeStruct %InputStructArr\n"
 163                                         "        %_ptr_buffer_Input = OpTypePointer ${inputstorageclass} %Input\n"
 164                                         "                %dataInput = OpVariable %_ptr_buffer_Input ${inputstorageclass}\n"
 165                                         "  %_ptr_buffer_InputStruct = OpTypePointer ${inputstorageclass} %InputStruct\n"
 166                                         "                 %v4uint32 = OpTypeVector %u32 4\n"
 167                                         "     %_arr_v4uint_uint_128 = OpTypeArray %v4uint32 %uint_128\n"
 168                                         "             %DataSelector = OpTypeStruct %_arr_v4uint_uint_128\n"
 169                                         "%_ptr_Uniform_DataSelector = OpTypePointer Uniform %DataSelector\n"
 170                                         "                 %selector = OpVariable %_ptr_Uniform_DataSelector Uniform\n"
 171                                         "      %_ptr_Uniform_uint32 = OpTypePointer Uniform %u32\n"
 172                                         "       %_ptr_Uniform_float = OpTypePointer Uniform %float\n"
 173                                         "       ${ptr_buffer_float:opt}\n"
 174
 175                                         "                     %main = OpFunction %void None %3\n"
 176                                         "                        %5 = OpLabel\n"
 177                                         "                        %i = OpVariable %_ptr_Function_uint32 Function\n"
 178                                         "                       %14 = OpAccessChain %_ptr_Input_uint32 %gl_GlobalInvocationID %idx_0\n"
 179                                         "                       %15 = OpLoad %u32 %14\n"
 180                                         "                             OpStore %i %15\n"
 181                                         "                   %uint_i = OpLoad %u32 %i\n"
 182                                         "                       %39 = OpAccessChain %_ptr_Uniform_uint32 %selector %idx_0 %uint_i %idx_0\n"
 183                                         "                       %40 = OpLoad %u32 %39\n"
 184                                         "                       %43 = OpAccessChain %_ptr_Uniform_uint32 %selector %idx_0 %uint_i %idx_1\n"
 185                                         "                       %44 = OpLoad %u32 %43\n"
 186                                         "                       %47 = OpAccessChain %_ptr_Uniform_uint32 %selector %idx_0 %uint_i %idx_2\n"
 187                                         "                       %48 = OpLoad %u32 %47\n"
 188                                         "                       %51 = OpAccessChain %_ptr_Uniform_uint32 %selector %idx_0 %uint_i %idx_3\n"
 189                                         "                       %52 = OpLoad %u32 %51\n"
 190                                         "                       %i0 = ${convert} ${idx_int} %40\n"
 191                                         "                       %i1 = ${convert} ${idx_int} %44\n"
 192                                         "                       %i2 = ${convert} ${idx_int} %48\n"
 193                                         "                       %i3 = ${convert} ${idx_int} %52\n"
 194                                         "        %inputFirstElement = OpAccessChain %_ptr_buffer_InputStruct %dataInput %idx_0 %idx_0\n"
 195                                         "                       %54 = ${accesschain}\n"
 196                                         "                       %55 = OpLoad %float %54\n"
 197                                         "                       %56 = OpAccessChain %_ptr_Uniform_float %dataOutput %idx_0 %uint_i\n"
 198                                         "                             OpStore %56 %55\n"
 199                                         "                             OpReturn\n"
 200                                         "                             OpFunctionEnd\n");
 201
 202
 203                                 switch (chainOpIdx)
 204                                 {
 205                                         case CHAIN_OP_ACCESS_CHAIN:
 206                                                 specs["accesschain"]                    = "OpAccessChain %_ptr_Uniform_float %inputFirstElement %idx_0 %i0 %i1 %i2 %i3\n";
 207                                                 specs["inputdecoration"]                = "BufferBlock";
 208                                                 specs["inputstorageclass"]              = "Uniform";
 209                                                 break;
 210                                         case CHAIN_OP_IN_BOUNDS_ACCESS_CHAIN:
 211                                                 specs["accesschain"]                    = "OpInBoundsAccessChain %_ptr_Uniform_float %inputFirstElement %idx_0 %i0 %i1 %i2 %i3\n";
 212                                                 specs["inputdecoration"]                = "BufferBlock";
 213                                                 specs["inputstorageclass"]              = "Uniform";
 214                                                 break;
 215                                         default:
 216                                                 DE_ASSERT(chainOpIdx == CHAIN_OP_PTR_ACCESS_CHAIN);
 217                                                 specs["accesschain"]                    = "OpPtrAccessChain %_ptr_StorageBuffer_float %inputFirstElement %idx_1 %idx_0 %i0 %i1 %i2 %i3\n";
 218                                                 specs["inputdecoration"]                = "Block";
 219                                                 specs["inputstorageclass"]              = "StorageBuffer";
 220                                                 specs["variablepointercaps"]            = "OpCapability VariablePointersStorageBuffer";
 221                                                 specs["ptr_buffer_float"]               = "%_ptr_StorageBuffer_float = OpTypePointer StorageBuffer %float";
 222                                                 specs["extensions"]                     = "OpExtension \"SPV_KHR_variable_pointers\"\n                             "
 223                                                                                                                   "OpExtension \"SPV_KHR_storage_buffer_storage_class\"";
 224                                                 element = 1;
 225                                                 vulkanFeatures.extVariablePointers = EXTVARIABLEPOINTERSFEATURES_VARIABLE_POINTERS_STORAGEBUFFER;
 226                                                 spec.extensions.push_back("VK_KHR_variable_pointers");
 227                                                 break;
 228                                 };
 229
 230                                 spec.inputs.push_back(BufferSp(new Float32Buffer(inputData)));
 231                                 spec.inputs.push_back(BufferSp(new Buffer<UVec4>(indexSelectorData)));
 232
 233                                 outputData.reserve(numItems);
 234                                 for (deUint32 numIdx = 0; numIdx < numItems; ++numIdx)
 235                                 {
 236                                         // Determine the selected output float for the selected indices.
 237                                         const UVec4 vec = indexSelectorData[numIdx];
 238                                         outputData.push_back(inputData[element * sizeof(InputData) / 4 + vec.x() * (32 * 4 * 4) + vec.y() * 4 * 4 + vec.z() * 4 + vec.w()]);
 239                                 }
 240
 241                                 if (idxSize == 16)
 242                                 {
 243                                         specs["intcaps"] = "OpCapability Int16";
 244                                         specs["convert"] = "OpSConvert";
 245                                         specs["intdecl"] =      "                      %u16 = OpTypeInt 16 0\n"
 246                                                                 "                      %i16 = OpTypeInt 16 1\n";
 247                                 }
 248                                 else if (idxSize == 64)
 249                                 {
 250                                         specs["intcaps"] = "OpCapability Int64";
 251                                         specs["convert"] = "OpSConvert";
 252                                         specs["intdecl"] =      "                      %u64 = OpTypeInt 64 0\n"
 253                                                                 "                      %i64 = OpTypeInt 64 1\n";
 254                                 } else {
 255                                         specs["convert"] = "OpCopyObject";
 256                                 }
 257
 258                                 specs["idx_uint"] = "%u" + de::toString(idxSize);
 259                                 specs["idx_int"] = (sign ? "%i" : "%u") + de::toString(idxSize);
 260
 261                                 spec.assembly                                   = shaderSource.specialize(specs);
 262                                 spec.numWorkGroups                              = IVec3(numItems, 1, 1);
 263                                 spec.requestedVulkanFeatures    = vulkanFeatures;
 264                                 spec.inputTypes[0]                              = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER;
 265                                 spec.inputTypes[1]                              = VK_DESCRIPTOR_TYPE_STORAGE_BUFFER;
 266
 267                                 spec.outputs.push_back(BufferSp(new Float32Buffer(outputData)));
 268
 269                                 group->addChild(new SpvAsmComputeShaderCase(testCtx, testName.c_str(), testName.c_str(), spec, features));
 270                         }
 271                 }
 272         }
 273 }
 274
 275 void addGraphicsIndexingTests (tcu::TestCaseGroup* group)
 276 {
 277         de::Random                      rnd                             (deStringHash(group->getName()));
 278         const int                       numItems                = 128;
 279         const int                       numStructs              = 2;
 280         const int                       numInputFloats  = (int)sizeof(InputData) / 4 * numStructs;
 281         RGBA                            defaultColors[4];
 282         vector<float>           inputData;
 283         vector<UVec4>           indexSelectorData;
 284
 285         inputData.reserve(numInputFloats);
 286         for (deUint32 numIdx = 0; numIdx < numInputFloats; ++numIdx)
 287                 inputData.push_back(rnd.getFloat());
 288
 289         indexSelectorData.reserve(numItems);
 290         for (deUint32 numIdx = 0; numIdx < numItems; ++numIdx)
 291                 indexSelectorData.push_back(UVec4(rnd.getUint32() % 32, rnd.getUint32() % 32, rnd.getUint32() % 4, rnd.getUint32() % 4));
 292
 293         getDefaultColors(defaultColors);
 294
 295         for (int chainOpIdx = 0; chainOpIdx < CHAIN_OP_LAST; ++chainOpIdx)
 296         {
 297                 for (int idxSizeIdx = 0; idxSizeIdx < DE_LENGTH_OF_ARRAY(idxSizes); ++idxSizeIdx)
 298                 {
 299                         for (int sign = 0; sign < 2; sign++)
 300                         {
 301                                 const int                                       idxSize                 = idxSizes[idxSizeIdx];
 302                                 const string                            testName                = chainOpTestNames[chainOpIdx] + string(sign == 0 ? "_u" : "_s") + de::toString(idxSize);
 303                                 VulkanFeatures                          vulkanFeatures;
 304                                 vector<string>                          extensions;
 305                                 vector<string>                          features;
 306                                 vector<deInt32>                         noSpecConstants;
 307                                 PushConstants                           noPushConstants;
 308                                 GraphicsInterfaces                      noInterfaces;
 309                                 map<string, string>                     specs;
 310                                 map<string, string>                     fragments;
 311                                 vector<float>                           outputData;
 312                                 ComputeShaderSpec                       spec;
 313                                 int                                                     element                 = 0;
 314                                 GraphicsResources                       resources;
 315
 316                                 const StringTemplate            preMain(
 317                                         "${intdecl:opt}"
 318                                         "                %c_i32_128 = OpConstant %i32 128\n"
 319                                         "                   %uint_0 = OpConstant ${idx_uint} 0\n"
 320                                         "                 %uint_128 = OpConstant %u32 128\n"
 321                                         "                  %uint_32 = OpConstant %u32 32\n"
 322                                         "                   %uint_1 = OpConstant ${idx_uint} 1\n"
 323                                         "                   %uint_2 = OpConstant ${idx_uint} 2\n"
 324                                         "                   %uint_3 = OpConstant ${idx_uint} 3\n"
 325                                         "      %_arr_float_uint_128 = OpTypeArray %f32 %uint_128\n"
 326                                         "                   %Output = OpTypeStruct %_arr_float_uint_128\n"
 327                                         "      %_ptr_Uniform_Output = OpTypePointer Uniform %Output\n"
 328                                         "               %dataOutput = OpVariable %_ptr_Uniform_Output Uniform\n"
 329                                         "                    %int_0 = OpConstant ${idx_int} 0\n"
 330                                         "              %mat4v4float = OpTypeMatrix %v4f32 4\n"
 331                                         " %_arr_mat4v4float_uint_32 = OpTypeArray %mat4v4float %uint_32\n"
 332                                         " %_arr__arr_mat4v4float_uint_32_uint_32 = OpTypeArray %_arr_mat4v4float_uint_32 %uint_32\n"
 333                                         "              %InputStruct = OpTypeStruct %_arr__arr_mat4v4float_uint_32_uint_32\n"
 334                                         "           %InputStructArr = OpTypeArray %InputStruct %uint_2\n"
 335                                         "                    %Input = OpTypeStruct %InputStructArr\n"
 336                                         "        %_ptr_buffer_Input = OpTypePointer ${inputstorageclass} %Input\n"
 337                                         "                %dataInput = OpVariable %_ptr_buffer_Input ${inputstorageclass}\n"
 338                                         "  %_ptr_buffer_InputStruct = OpTypePointer ${inputstorageclass} %InputStruct\n"
 339                                         "     %_arr_v4uint_uint_128 = OpTypeArray %v4u32 %uint_128\n"
 340                                         "             %DataSelector = OpTypeStruct %_arr_v4uint_uint_128\n"
 341                                         "%_ptr_Uniform_DataSelector = OpTypePointer Uniform %DataSelector\n"
 342                                         "                 %selector = OpVariable %_ptr_Uniform_DataSelector Uniform\n"
 343                                         "      %_ptr_Uniform_uint32 = OpTypePointer Uniform %u32\n"
 344                                         "       %_ptr_Uniform_float = OpTypePointer Uniform %f32\n"
 345                                         "       ${ptr_buffer_float:opt}\n");
 346
 347
 348                                 const StringTemplate            decoration(
 349                                         "OpDecorate %_arr_float_uint_128 ArrayStride 4\n"
 350                                         "OpMemberDecorate %Output 0 Offset 0\n"
 351                                         "OpDecorate %Output BufferBlock\n"
 352                                         "OpDecorate %dataOutput DescriptorSet 0\n"
 353                                         "OpDecorate %dataOutput Binding 2\n"
 354                                         "OpDecorate %_arr_mat4v4float_uint_32 ArrayStride 64\n"
 355                                         "OpDecorate %_arr__arr_mat4v4float_uint_32_uint_32 ArrayStride 2048\n"
 356                                         "OpMemberDecorate %InputStruct 0 ColMajor\n"
 357                                         "OpMemberDecorate %InputStruct 0 Offset 0\n"
 358                                         "OpMemberDecorate %InputStruct 0 MatrixStride 16\n"
 359                                         "OpDecorate %InputStructArr ArrayStride 65536\n"
 360                                         "OpDecorate %Input ${inputdecoration}\n"
 361                                         "OpMemberDecorate %Input 0 Offset 0\n"
 362                                         "OpDecorate %dataInput DescriptorSet 0\n"
 363                                         "OpDecorate %dataInput Binding 0\n"
 364                                         "OpDecorate %_ptr_buffer_InputStruct ArrayStride 65536\n"
 365                                         "OpDecorate %_arr_v4uint_uint_128 ArrayStride 16\n"
 366                                         "OpMemberDecorate %DataSelector 0 Offset 0\n"
 367                                         "OpDecorate %DataSelector BufferBlock\n"
 368                                         "OpDecorate %selector DescriptorSet 0\n"
 369                                         "OpDecorate %selector Binding 1\n");
 370
 371                                 // Index an input buffer containing 2D array of 4x4 matrices. The indices are read from another
 372                                 // input and converted to the desired bit size and sign.
 373                                 const StringTemplate            testFun(
 374                                         "        %test_code = OpFunction %v4f32 None %v4f32_function\n"
 375                                         "            %param = OpFunctionParameter %v4f32\n"
 376
 377                                         "            %entry = OpLabel\n"
 378                                         "                %i = OpVariable %fp_i32 Function\n"
 379                                         "                     OpStore %i %c_i32_0\n"
 380                                         "                     OpBranch %loop\n"
 381
 382                                         "             %loop = OpLabel\n"
 383                                         "               %15 = OpLoad %i32 %i\n"
 384                                         "               %lt = OpSLessThan %bool %15 %c_i32_128\n"
 385                                         "                     OpLoopMerge %merge %inc None\n"
 386                                         "                     OpBranchConditional %lt %write %merge\n"
 387
 388                                         "            %write = OpLabel\n"
 389                                         "            %int_i = OpLoad %i32 %i\n"
 390                                         "               %39 = OpAccessChain %_ptr_Uniform_uint32 %selector %int_0 %int_i %uint_0\n"
 391                                         "               %40 = OpLoad %u32 %39\n"
 392                                         "               %43 = OpAccessChain %_ptr_Uniform_uint32 %selector %int_0 %int_i %uint_1\n"
 393                                         "               %44 = OpLoad %u32 %43\n"
 394                                         "               %47 = OpAccessChain %_ptr_Uniform_uint32 %selector %int_0 %int_i %uint_2\n"
 395                                         "               %48 = OpLoad %u32 %47\n"
 396                                         "               %51 = OpAccessChain %_ptr_Uniform_uint32 %selector %int_0 %int_i %uint_3\n"
 397                                         "               %52 = OpLoad %u32 %51\n"
 398                                         "               %i0 = ${convert} ${idx_uint} %40\n"
 399                                         "               %i1 = ${convert} ${idx_uint} %44\n"
 400                                         "               %i2 = ${convert} ${idx_uint} %48\n"
 401                                         "               %i3 = ${convert} ${idx_uint} %52\n"
 402                                         "%inputFirstElement = OpAccessChain %_ptr_buffer_InputStruct %dataInput %uint_0 %uint_0\n"
 403                                         "               %54 = ${accesschain}\n"
 404                                         "               %55 = OpLoad %f32 %54\n"
 405                                         "               %56 = OpAccessChain %_ptr_Uniform_float %dataOutput %int_0 %int_i\n"
 406                                         "                     OpStore %56 %55\n"
 407                                         "                     OpBranch %inc\n"
 408
 409                                         "              %inc = OpLabel\n"
 410                                         "               %67 = OpLoad %i32 %i\n"
 411                                         "               %69 = OpIAdd %i32 %67 %c_i32_1\n"
 412                                         "                     OpStore %i %69\n"
 413                                         "                     OpBranch %loop\n"
 414
 415                                         "            %merge = OpLabel\n"
 416                                         "                     OpReturnValue %param\n"
 417
 418                                         "                     OpFunctionEnd\n");
 419
 420                                 resources.inputs.push_back(std::make_pair(VK_DESCRIPTOR_TYPE_STORAGE_BUFFER, BufferSp(new Float32Buffer(inputData))));
 421                                 resources.inputs.push_back(std::make_pair(VK_DESCRIPTOR_TYPE_STORAGE_BUFFER, BufferSp(new Buffer<UVec4>(indexSelectorData))));
 422
 423                                 if (idxSize == 16)
 424                                 {
 425                                         fragments["capability"] = "OpCapability Int16\n";
 426                                         features.push_back("shaderInt16");
 427                                         specs["convert"] = "OpUConvert";
 428                                         specs["intdecl"] =      "                      %u16 = OpTypeInt 16 0\n"
 429                                                                 "                      %i16 = OpTypeInt 16 1\n";
 430                                 }
 431                                 else if (idxSize == 64)
 432                                 {
 433                                         fragments["capability"] = "OpCapability Int64\n";
 434                                         features.push_back("shaderInt64");
 435                                         specs["convert"] = "OpUConvert";
 436                                         specs["intdecl"] =      "                      %u64 = OpTypeInt 64 0\n"
 437                                                                 "                      %i64 = OpTypeInt 64 1\n";
 438                                 } else {
 439                                         specs["convert"] = "OpCopyObject";
 440                                 }
 441
 442                                 specs["idx_uint"] = "%u" + de::toString(idxSize);
 443                                 specs["idx_int"] = (sign ? "%i" : "%u") + de::toString(idxSize);
 444
 445                                 switch (chainOpIdx)
 446                                 {
 447                                         case CHAIN_OP_ACCESS_CHAIN:
 448                                                 specs["accesschain"]                            = "OpAccessChain %_ptr_Uniform_float %inputFirstElement %int_0 %i0 %i1 %i2 %i3\n";
 449                                                 specs["inputdecoration"]                        = "BufferBlock";
 450                                                 specs["inputstorageclass"]                      = "Uniform";
 451                                                 break;
 452                                         case CHAIN_OP_IN_BOUNDS_ACCESS_CHAIN:
 453                                                 specs["accesschain"]                            = "OpInBoundsAccessChain %_ptr_Uniform_float %inputFirstElement %int_0 %i0 %i1 %i2 %i3\n";
 454                                                 specs["inputdecoration"]                        = "BufferBlock";
 455                                                 specs["inputstorageclass"]                      = "Uniform";
 456                                                 break;
 457                                         default:
 458                                                 DE_ASSERT(chainOpIdx == CHAIN_OP_PTR_ACCESS_CHAIN);
 459                                                 specs["accesschain"]                            = "OpPtrAccessChain %_ptr_StorageBuffer_float %inputFirstElement %uint_1 %int_0 %i0 %i1 %i2 %i3\n";
 460                                                 specs["inputdecoration"]                        = "Block";
 461                                                 specs["inputstorageclass"]                      = "StorageBuffer";
 462                                                 specs["ptr_buffer_float"]                       = "%_ptr_StorageBuffer_float = OpTypePointer StorageBuffer %f32";
 463                                                 fragments["capability"]                         += "OpCapability VariablePointersStorageBuffer";
 464                                                 fragments["extension"]                          = "OpExtension \"SPV_KHR_variable_pointers\"\nOpExtension \"SPV_KHR_storage_buffer_storage_class\"";
 465                                                 extensions.push_back                            ("VK_KHR_variable_pointers");
 466                                                 vulkanFeatures.extVariablePointers      = EXTVARIABLEPOINTERSFEATURES_VARIABLE_POINTERS_STORAGEBUFFER;
 467                                                 element = 1;
 468                                                 break;
 469                                 };
 470
 471                                 outputData.reserve(numItems);
 472                                 for (deUint32 numIdx = 0; numIdx < numItems; ++numIdx)
 473                                 {
 474                                         // Determine the selected output float for the selected indices.
 475                                         const UVec4 vec = indexSelectorData[numIdx];
 476                                         outputData.push_back(inputData[element * sizeof(InputData) / 4 + vec.x() * (32 * 4 * 4) + vec.y() * 4 * 4 + vec.z() * 4 + vec.w()]);
 477                                 }
 478
 479                                 resources.outputs.push_back(std::make_pair(VK_DESCRIPTOR_TYPE_STORAGE_BUFFER, BufferSp(new Float32Buffer(outputData))));
 480
 481                                 fragments["pre_main"]   = preMain.specialize(specs);
 482                                 fragments["decoration"] = decoration.specialize(specs);
 483                                 fragments["testfun"]    = testFun.specialize(specs);
 484
 485                                 createTestsForAllStages(
 486                                                 testName.c_str(), defaultColors, defaultColors, fragments, noSpecConstants,
 487                                                 noPushConstants, resources, noInterfaces, extensions, features, vulkanFeatures, group);
 488                         }
 489                 }
 490         }
 491 }
 492
 493 } // anonymous
 494
 495 tcu::TestCaseGroup* createIndexingComputeGroup (tcu::TestContext& testCtx)
 496 {
 497         de::MovePtr<tcu::TestCaseGroup> group           (new tcu::TestCaseGroup(testCtx, "indexing", "Compute tests for data indexing."));
 498         addComputeIndexingTests(group.get());
 499
 500         return group.release();
 501 }
 502
 503 tcu::TestCaseGroup* createIndexingGraphicsGroup (tcu::TestContext& testCtx)
 504 {
 505         de::MovePtr<tcu::TestCaseGroup> group           (new tcu::TestCaseGroup(testCtx, "indexing", "Graphics tests for data indexing."));
 506         addGraphicsIndexingTests(group.get());
 507
 508         return group.release();
 509 }
 510
 511 } // SpirVAssembly
 512 } // vkt