1 files changed, 4 insertions, 0 deletions
diff --git a/clang/lib/AST/Expr.cpp b/clang/lib/AST/Expr.cpp
index 523db1243d7..0970d59c9c5 100644
--- a/clang/lib/AST/Expr.cpp
+++ b/clang/lib/AST/Expr.cpp
@@ -3278,6 +3278,10 @@ FieldDecl *Expr::getSourceBitField() {
       return BinOp->getRHS()->getSourceBitField();
   }
 
+  if (UnaryOperator *UnOp = dyn_cast<UnaryOperator>(E))
+    if (UnOp->isPrefix() && UnOp->isIncrementDecrementOp())
+      return UnOp->getSubExpr()->getSourceBitField();
+
   return nullptr;
 }