[clang] Enable matrices in HLSL (PR #111415)

[Greg Roth via cfe-commits]

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@@ -852,34 +852,50 @@ void TypePrinter::printExtVectorAfter(const ExtVectorType *T, raw_ostream &OS) {
 
 void TypePrinter::printConstantMatrixBefore(const ConstantMatrixType *T,
                                             raw_ostream &OS) {
+  if (Policy.UseHLSLTypes)
+    OS << "matrix<";
   printBefore(T->getElementType(), OS);
-  OS << " __attribute__((matrix_type(";
-  OS << T->getNumRows() << ", " << T->getNumColumns();
-  OS << ")))";
 }
 
 void TypePrinter::printConstantMatrixAfter(const ConstantMatrixType *T,
                                            raw_ostream &OS) {
   printAfter(T->getElementType(), OS);
+  if (Policy.UseHLSLTypes) {
+    OS << ", ";
+    OS << T->getNumRows() << ", " << T->getNumColumns();
+    OS << ">";
+  } else {
+    OS << " __attribute__((matrix_type(";
+    OS << T->getNumRows() << ", " << T->getNumColumns();
+    OS << ")))";
+  }
 }
 
 void TypePrinter::printDependentSizedMatrixBefore(
     const DependentSizedMatrixType *T, raw_ostream &OS) {
+  if (Policy.UseHLSLTypes)
+    OS << "matrix<";
   printBefore(T->getElementType(), OS);
-  OS << " __attribute__((matrix_type(";
-  if (T->getRowExpr()) {
-    T->getRowExpr()->printPretty(OS, nullptr, Policy);
-  }
-  OS << ", ";
-  if (T->getColumnExpr()) {
-    T->getColumnExpr()->printPretty(OS, nullptr, Policy);
-  }
-  OS << ")))";
 }
 
 void TypePrinter::printDependentSizedMatrixAfter(
     const DependentSizedMatrixType *T, raw_ostream &OS) {
   printAfter(T->getElementType(), OS);
+  if (Policy.UseHLSLTypes)
+    OS << ", ";
+  else
+    OS << " __attribute__((matrix_type(";
+
+  if (Expr *E = T->getRowExpr())
+    E->printPretty(OS, nullptr, Policy);
+  OS << ", ";
+  if (Expr *E = T->getColumnExpr())
+    E->printPretty(OS, nullptr, Policy);
+
+  if (Policy.UseHLSLTypes)
+    OS << ">";
+  else
+    OS << ")))";
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pow2clk wrote:

The changes to this file do alter how pointer and reference matrices are printed. I'd like to get @fhahn's opinion on this even if on nothing else.

https://github.com/llvm/llvm-project/pull/111415