[polly] r294835 - [FIX] Fix the potential issue of containsOnlyMatMulDep.

[Roman Gareev via llvm-commits]

Author: romangareev
Date: Sat Feb 11 03:48:09 2017
New Revision: 294835

URL: http://llvm.org/viewvc/llvm-project?rev=294835&view=rev
Log:
[FIX] Fix the potential issue of containsOnlyMatMulDep.

Modified:
    polly/trunk/lib/Transform/ScheduleOptimizer.cpp

Modified: polly/trunk/lib/Transform/ScheduleOptimizer.cpp
URL: http://llvm.org/viewvc/llvm-project/polly/trunk/lib/Transform/ScheduleOptimizer.cpp?rev=294835&r1=294834&r2=294835&view=diff
==============================================================================
--- polly/trunk/lib/Transform/ScheduleOptimizer.cpp (original)
+++ polly/trunk/lib/Transform/ScheduleOptimizer.cpp Sat Feb 11 03:48:09 2017
@@ -783,6 +783,8 @@ static bool containsOnlyMatMulDep(__isl_
     }
     isl_val_free(Val);
   }
+  if (DeltasDimNum == 0 || Pos < 0)
+    return false;
   return true;
 }