ifdef out unneeded if statement.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@64575 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/lib/Transforms/Scalar/LoopStrengthReduce.cpp
index db5479b..9aa5fe2 100644
--- a/lib/Transforms/Scalar/LoopStrengthReduce.cpp
+++ b/lib/Transforms/Scalar/LoopStrengthReduce.cpp
@@ -437,9 +437,11 @@
 
   Start = SE->getAddExpr(Start, AddRec->getOperand(0));
   
+#ifndef NDEBUG
   if (!isa<SCEVConstant>(AddRec->getOperand(1)))
     DOUT << "[" << L->getHeader()->getName()
          << "] Variable stride: " << *AddRec << "\n";
+#endif
 
   Stride = AddRec->getOperand(1);
   return true;