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-rw-r--r--llvm/test/Demangle/invalid-manglings.test5
1 files changed, 5 insertions, 0 deletions
diff --git a/llvm/test/Demangle/invalid-manglings.test b/llvm/test/Demangle/invalid-manglings.test
index 6883a46d8d3..af919282bb8 100644
--- a/llvm/test/Demangle/invalid-manglings.test
+++ b/llvm/test/Demangle/invalid-manglings.test
@@ -14,3 +14,8 @@
; CHECK-EMPTY:
; CHECK-NEXT: ?@@8
; CHECK-NEXT: error: Invalid mangled name
+
+??
+; CHECK-EMPTY:
+; CHECK-NEXT: ??
+; CHECK-NEXT: error: Invalid mangled name
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