X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=include%2Fllvm%2FADT%2Fpolymorphic_ptr.h;h=b8d8d71238e3c26a2a0d0386dc9327bd62739044;hb=65c98b9da474d0562f883d6001f31ba5b2b95183;hp=6114b65a309dece89415dc24e186e911c7bae31e;hpb=aec427786be4f4dd0c8ecc0aa17899e6c836e45d;p=oota-llvm.git

diff --git a/include/llvm/ADT/polymorphic_ptr.h b/include/llvm/ADT/polymorphic_ptr.h
index 6114b65a309..b8d8d71238e 100644
--- a/include/llvm/ADT/polymorphic_ptr.h
+++ b/include/llvm/ADT/polymorphic_ptr.h
@@ -38,8 +38,8 @@ template <typename T> class polymorphic_ptr {
   T *ptr;
 
 public:
-  explicit polymorphic_ptr(T *ptr = 0) : ptr(ptr) {}
-  polymorphic_ptr(const polymorphic_ptr &arg) : ptr(arg->clone()) {}
+  polymorphic_ptr(T *ptr = 0) : ptr(ptr) {}
+  polymorphic_ptr(const polymorphic_ptr &arg) : ptr(arg ? arg->clone() : 0) {}
 #if LLVM_HAS_RVALUE_REFERENCES
   polymorphic_ptr(polymorphic_ptr &&arg) : ptr(arg.take()) {}
 #endif