[polly] r244758 - Make sure we increment the reference counter when passing out the isl_pw_aff

[Tobias Grosser via llvm-commits]

Author: grosser
Date: Wed Aug 12 10:45:41 2015
New Revision: 244758

URL: http://llvm.org/viewvc/llvm-project?rev=244758&view=rev
Log:
Make sure we increment the reference counter when passing out the isl_pw_aff

Modified:
    polly/trunk/include/polly/ScopInfo.h

Modified: polly/trunk/include/polly/ScopInfo.h
URL: http://llvm.org/viewvc/llvm-project/polly/trunk/include/polly/ScopInfo.h?rev=244758&r1=244757&r2=244758&view=diff
==============================================================================
--- polly/trunk/include/polly/ScopInfo.h (original)
+++ polly/trunk/include/polly/ScopInfo.h Wed Aug 12 10:45:41 2015
@@ -25,6 +25,7 @@
 
 #include "llvm/ADT/MapVector.h"
 #include "llvm/Analysis/RegionPass.h"
+#include "isl/aff.h"
 #include "isl/ctx.h"
 
 #include <forward_list>
@@ -101,9 +102,9 @@ public:
   }
 
   /// @brief Return the size of dimension @p dim as isl_pw_aff.
-  const isl_pw_aff *getDimensionSizePw(unsigned dim) const {
+  __isl_give isl_pw_aff *getDimensionSizePw(unsigned dim) const {
     assert(dim < getNumberOfDimensions() && "Invalid dimension");
-    return DimensionSizesPw[dim - 1];
+    return isl_pw_aff_copy(DimensionSizesPw[dim - 1]);
   }
 
   /// @brief Get the type of the elements stored in this array.