1 files changed, 12 insertions, 0 deletions
diff --git a/clang/lib/AST/ItaniumMangle.cpp b/clang/lib/AST/ItaniumMangle.cpp
index 86bc8e67756..c3432839c2e 100644
--- a/clang/lib/AST/ItaniumMangle.cpp
+++ b/clang/lib/AST/ItaniumMangle.cpp
@@ -3514,6 +3514,18 @@ recurse:
   case Expr::CXXThisExprClass:
     Out << "fpT";
     break;
+
+  case Expr::CoawaitExprClass:
+    // FIXME: Propose a non-vendor mangling.
+    Out << "v18co_await";
+    mangleExpression(cast<CoawaitExpr>(E)->getOperand());
+    break;
+
+  case Expr::CoyieldExprClass:
+    // FIXME: Propose a non-vendor mangling.
+    Out << "v18co_yield";
+    mangleExpression(cast<CoawaitExpr>(E)->getOperand());
+    break;
   }
 }