[mlir] NFC: work around gcc-aarch64 v8.3 compilation issue in getRegionBranchSuccessorOperands implementation.

1 files changed, 3 insertions, 1 deletions

diff --git a/mlir/lib/Interfaces/ControlFlowInterfaces.cpp b/mlir/lib/Interfaces/ControlFlowInterfaces.cpp
index 65006f3569fc..9df5e551e6a3 100644
--- a/mlir/lib/Interfaces/ControlFlowInterfaces.cpp
+++ b/mlir/lib/Interfaces/ControlFlowInterfaces.cpp
@@ -394,5 +394,7 @@ std::optional<OperandRange>
 mlir::getRegionBranchSuccessorOperands(Operation *operation,
                                        std::optional<unsigned> regionIndex) {
   auto range = getMutableRegionBranchSuccessorOperands(operation, regionIndex);
-  return range ? std::optional<OperandRange>(*range) : std::nullopt;
+  if (range)
+    return static_cast<OperandRange>(*range);
+  return std::nullopt;
 }