[flang-commits] [flang] [mlir] [acc] Support for Optionals in firstprivate recipes. (PR #185764)

[via flang-commits]

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@@ -893,42 +917,68 @@ mlir::Value OpenACCMappableModel<Ty>::generatePrivateInit(
       retVal = box;
     }
   }
+  }
+
+  if (isOptional) {
+    fir::ResultOp::create(builder, loc, retVal);
+    builder.setInsertionPointToStart(&optIfOp->getElseRegion().front());
+    mlir::Value zero = fir::ZeroOp::create(builder, loc, type);
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jeanPerier wrote:

fir::AbsentOp is more idiomatic (although with the chosen implementation of OPTIONAL it is equivalent in the end). 

https://github.com/llvm/llvm-project/pull/185764