Avoid leaking CompileUnits and DbgScopes from DwarfDebug. Leaks found by Valgrind!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97906 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 22 insertions, 0 deletions

diff --git a/include/llvm/ADT/STLExtras.h b/include/llvm/ADT/STLExtras.h
index 32cf459..8dbf790 100644
--- a/include/llvm/ADT/STLExtras.h
+++ b/include/llvm/ADT/STLExtras.h
@@ -279,6 +279,28 @@ static inline void array_pod_sort(IteratorTy Start, IteratorTy End,
   qsort(&*Start, End-Start, sizeof(*Start), Compare);
 }
   
+//===----------------------------------------------------------------------===//
+//     Extra additions to <algorithm>
+//===----------------------------------------------------------------------===//
+
+/// For a container of pointers, deletes the pointers and then clears the
+/// container.
+template<typename Container>
+void DeleteContainerPointers(Container &C) {
+  for (typename Container::iterator I = C.begin(), E = C.end(); I != E; ++I)
+    delete *I;
+  C.clear();
+}
+
+/// In a container of pairs (usually a map) whose second element is a pointer,
+/// deletes the second elements and then clears the container.
+template<typename Container>
+void DeleteContainerSeconds(Container &C) {
+  for (typename Container::iterator I = C.begin(), E = C.end(); I != E; ++I)
+    delete I->second;
+  C.clear();
+}
+
 } // End llvm namespace
 
 #endif