jroelofs added a subscriber: jroelofs.

================
Comment at: lib/Frontend/InitHeaderSearch.cpp:340
@@ +339,3 @@
+        BaseSDKPath = P.str();
+      }
+    }
----------------
The lifetime of `P` ends here, yet a reference to it lives on because of the `= 
P.str()`. Using it later on line 344 is UB.


http://reviews.llvm.org/D11279



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