diff --git a/clang/lib/AST/Expr.cpp b/clang/lib/AST/Expr.cpp
--- a/clang/lib/AST/Expr.cpp
+++ b/clang/lib/AST/Expr.cpp
@@ -2352,6 +2352,10 @@
       return true;
     return Exp->getLHS()->isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx);
   }
+  case BinaryConditionalOperatorClass: {
+    auto *Exp = cast<BinaryConditionalOperator>(this);
+    return Exp->getFalseExpr()->isUnusedResultAWarning(WarnE, Loc, R1, R2, Ctx);
+  }
 
   case MemberExprClass:
     WarnE = this;
diff --git a/clang/test/Sema/warn-binary-conditional-expression-unused.c b/clang/test/Sema/warn-binary-conditional-expression-unused.c
new file mode 100644
--- /dev/null
+++ b/clang/test/Sema/warn-binary-conditional-expression-unused.c
@@ -0,0 +1,15 @@
+// RUN: %clang_cc1 -fsyntax-only -Wunused-value -verify %s
+int main() {
+    int a;
+    int b;
+    a ? : b; //expected-warning{{expression result unused}}
+    a ? a : b; //expected-warning{{expression result unused}}
+    a ? : ++b;
+    a ? a : ++b;
+    ++a ? : b; //expected-warning{{expression result unused}}
+    ++a ? a : b; //expected-warning{{expression result unused}}
+    ++a ? : ++b;
+    ++a ? a : ++b;
+    return 0;
+};
+