Fix ASAN failure in cxa_demangle

Found with ASAN + libFuzzer by Kostya Serebryany <[email protected]> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@293330 91177308-0d34-0410-b5e6-96231b3b80d8
marler8997 · Jan 27, 2017 · e169855 · e169855
1 parent 194c9f4
commit e169855
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/lib/Demangle/ItaniumDemangle.cpp b/lib/Demangle/ItaniumDemangle.cpp
@@ -1402,7 +1402,8 @@ static const char *parse_function_type(const char *first, const char *last,
         int ref_qual = 0;
         while (true) {
           if (t == last) {
-            db.names.pop_back();
+            if (!db.names.empty())
+              db.names.pop_back();
             return first;
           }
           if (*t == 'E') {