================
@@ -2163,6 +2163,51 @@ static void BuildFlattenedTypeList(QualType BaseTy,
}
}
+bool SemaHLSL::IsLineVectorLayoutCompatibleType(clang::QualType QT) {
+ if (QT.isNull())
+ return false;
+
+ llvm::SmallVector<QualType, 16> QTTypes;
+ BuildFlattenedTypeList(QT, QTTypes);
+
+ assert(QTTypes.size() > 0 &&
+ "expected at least one constituent type from non-null type");
+ QualType FirstQT = QTTypes[0];
+
+ // element count cannot exceed 4
+ if (QTTypes.size() > 4)
+ return false;
+
+ // check if the outer type was an array type
+ if (llvm::isa<clang::ArrayType>(QT.getTypePtr()))
+ return false;
+
+ for (QualType TempQT : QTTypes) {
+ // ensure homogeneity
+ if (TempQT != FirstQT)
+ return false;
+
+ if (const BuiltinType *BT = TempQT->getAs<BuiltinType>()) {
+ if (BT->getKind() == BuiltinType::Bool ||
+ BT->getKind() == BuiltinType::Enum)
+ return false;
+
+ // Check if it is an array type.
+ if (llvm::isa<clang::ArrayType>(TempQT.getTypePtr()))
----------------
hekota wrote:
```suggestion
if (TempQT->isArrayType())
```
https://github.com/llvm/llvm-project/pull/113730
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