X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FSupport%2FAllocator.h;fp=include%2Fllvm%2FSupport%2FAllocator.h;h=043d823146091ef083f5d602602fbf7845e6dcf7;hb=37aa498e312aab2e7ddb22f687c1b7a32d679d0c;hp=c608736fa95616f74dd65341550140da53351614;hpb=ea5802f21214d1a606eb3fe6239bda938f9bd006;p=oota-llvm.git

diff --git a/include/llvm/Support/Allocator.h b/include/llvm/Support/Allocator.h
index c608736fa95..043d8231460 100644
--- a/include/llvm/Support/Allocator.h
+++ b/include/llvm/Support/Allocator.h
@@ -187,6 +187,7 @@ public:
   /// \brief Deallocate all but the current slab and reset the current pointer
   /// to the beginning of it, freeing all memory allocated so far.
   void Reset() {
+    // Deallocate all but the first slab, and deallocate all custom-sized slabs.
     DeallocateCustomSizedSlabs();
     CustomSizedSlabs.clear();
 
@@ -198,7 +199,7 @@ public:
     CurPtr = (char *)Slabs.front();
     End = CurPtr + SlabSize;
 
-    // Deallocate all but the first slab, and deallocate all custom-sized slabs.
+    __asan_poison_memory_region(*Slabs.begin(), computeSlabSize(0));
     DeallocateSlabs(std::next(Slabs.begin()), Slabs.end());
     Slabs.erase(std::next(Slabs.begin()), Slabs.end());
   }