Change *BugReport constructors to take StringRefs.

- Eliminates many calls to std::string.c_str()
- Fixes an invalid read in ReturnStackAddressChecker due to an unsafe call to
  StringRef.data() which doesn't guarantee null-termination.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@88779 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 1 insertions, 2 deletions

diff --git a/lib/Analysis/PointerSubChecker.cpp b/lib/Analysis/PointerSubChecker.cpp
index 20279c67b3..4c7906f4be 100644
--- a/lib/Analysis/PointerSubChecker.cpp
+++ b/lib/Analysis/PointerSubChecker.cpp
@@ -66,8 +66,7 @@ void PointerSubChecker::PreVisitBinaryOperator(CheckerContext &C,
       BT = new BuiltinBug("Pointer subtraction", 
                           "Subtraction of two pointers that do not point to "
                           "the same memory chunk may cause incorrect result.");
-    RangedBugReport *R = new RangedBugReport(*BT, BT->getDescription().c_str(),
-                                             N);
+    RangedBugReport *R = new RangedBugReport(*BT, BT->getDescription(), N);
     R->addRange(B->getSourceRange());
     C.EmitReport(R);
   }