Add missing casts in runtime argument preparation

Author: ashermancinelli

flang/include/flang/Optimizer/Builder/Runtime/RTBuilder.h

@@ -829,14 +829,16 @@ template <int N, typename A>
 void createArguments(llvm::SmallVectorImpl<mlir::Value> &result,
                      fir::FirOpBuilder &builder, mlir::Location loc,
                      mlir::FunctionType fTy, A arg) {
-  result.emplace_back(builder.createConvert(loc, fTy.getInput(N), arg));
+  result.emplace_back(
+      builder.createConvertWithVolatileCast(loc, fTy.getInput(N), arg));
 }
 
 template <int N, typename A, typename... As>
 void createArguments(llvm::SmallVectorImpl<mlir::Value> &result,
                      fir::FirOpBuilder &builder, mlir::Location loc,
                      mlir::FunctionType fTy, A arg, As... args) {
-  result.emplace_back(builder.createConvert(loc, fTy.getInput(N), arg));
+  result.emplace_back(
+      builder.createConvertWithVolatileCast(loc, fTy.getInput(N), arg));
   createArguments<N + 1>(result, builder, loc, fTy, args...);
 }
 } // namespace helper