Vendor import of llvm trunk r178860:

http://llvm.org/svn/llvm-project/llvm/trunk@178860

1 files changed, 11 insertions, 0 deletions

diff --git a/include/llvm/Support/Recycler.h b/include/llvm/Support/Recycler.h
index fa6e189..bcc561d 100644
--- a/include/llvm/Support/Recycler.h
+++ b/include/llvm/Support/Recycler.h
@@ -22,6 +22,8 @@
 
 namespace llvm {
 
+class BumpPtrAllocator;
+
 /// PrintRecyclingAllocatorStats - Helper for RecyclingAllocator for
 /// printing statistics.
 ///
@@ -87,6 +89,15 @@ public:
     }
   }
 
+  /// Special case for BumpPtrAllocator which has an empty Deallocate()
+  /// function.
+  ///
+  /// There is no need to traverse the free list, pulling all the objects into
+  /// cache.
+  void clear(BumpPtrAllocator&) {
+    FreeList.clearAndLeakNodesUnsafely();
+  }
+
   template<class SubClass, class AllocatorType>
   SubClass *Allocate(AllocatorType &Allocator) {
     assert(sizeof(SubClass) <= Size &&