[CoopVec] Check for minimum support set (#7457)

This change refactors the CoopVec test config selection to enforce
running the minimum support set. Drivers that do not report all required
data formats and interpretations will fail the test.

The handling of `D3D12EnableExperimentalFeatures` is also refactored to
apply only to the CoopVec tests, without the use of
`-p:CooperativeVectorExperimental=*`.

Author: jholewinski-nv

tools/clang/unittests/HLSLExec/CoopVec.h

@@ -215,6 +215,7 @@ GetStrideMultiplierForMatrixDataType(D3D12_LINEAR_ALGEBRA_DATATYPE DataType) {
     return 2;
   case D3D12_LINEAR_ALGEBRA_DATATYPE_SINT32:
   case D3D12_LINEAR_ALGEBRA_DATATYPE_UINT32:
+  case D3D12_LINEAR_ALGEBRA_DATATYPE_FLOAT32:
     return 4;
   default:
     VERIFY_FAIL(L"Unsupported matrix data type");
@@ -240,6 +241,10 @@ static size_t GetNumPackedElementsForInputDataType(
 static std::wstring
 GetHlslDataTypeForDataType(D3D12_LINEAR_ALGEBRA_DATATYPE DataType) {
   switch (DataType) {
+  case D3D12_LINEAR_ALGEBRA_DATATYPE_SINT8_T4_PACKED:
+    return L"int8_t4_packed";
+  case D3D12_LINEAR_ALGEBRA_DATATYPE_UINT8_T4_PACKED:
+    return L"uint8_t4_packed";
   case D3D12_LINEAR_ALGEBRA_DATATYPE_SINT16:
     return L"int16_t";
   case D3D12_LINEAR_ALGEBRA_DATATYPE_UINT16:
@@ -332,6 +337,8 @@ GetVectorElementSize(D3D12_LINEAR_ALGEBRA_DATATYPE DataType,
     return sizeof(int16_t);
   case D3D12_LINEAR_ALGEBRA_DATATYPE_SINT32:
   case D3D12_LINEAR_ALGEBRA_DATATYPE_UINT32:
+  case D3D12_LINEAR_ALGEBRA_DATATYPE_SINT8_T4_PACKED:
+  case D3D12_LINEAR_ALGEBRA_DATATYPE_UINT8_T4_PACKED:
     if (DataInterpretation == D3D12_LINEAR_ALGEBRA_DATATYPE_SINT8_T4_PACKED ||
         DataInterpretation == D3D12_LINEAR_ALGEBRA_DATATYPE_UINT8_T4_PACKED) {
       return sizeof(int8_t);
@@ -564,9 +571,11 @@ class TestVector {
     TestVector Vec(NumVectors, VectorSize, ElementSize);
     switch (DataType) {
     case D3D12_LINEAR_ALGEBRA_DATATYPE_SINT8:
+    case D3D12_LINEAR_ALGEBRA_DATATYPE_SINT8_T4_PACKED:
       Vec.fillSimpleTestData<int8_t>(MatrixInterpretation, Rnd);
       break;
     case D3D12_LINEAR_ALGEBRA_DATATYPE_UINT8:
+    case D3D12_LINEAR_ALGEBRA_DATATYPE_UINT8_T4_PACKED:
       Vec.fillSimpleTestData<uint8_t>(MatrixInterpretation, Rnd);
       break;
     case D3D12_LINEAR_ALGEBRA_DATATYPE_SINT16: