[polly] r259337 - ScopInfo: use std::distance to shorten code [NFC]

[Tobias Grosser via llvm-commits]

Author: grosser
Date: Sun Jan 31 19:55:08 2016
New Revision: 259337

URL: http://llvm.org/viewvc/llvm-project?rev=259337&view=rev
Log:
ScopInfo: use std::distance to shorten code [NFC]

Modified:
    polly/trunk/lib/Analysis/ScopInfo.cpp

Modified: polly/trunk/lib/Analysis/ScopInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/polly/trunk/lib/Analysis/ScopInfo.cpp?rev=259337&r1=259336&r2=259337&view=diff
==============================================================================
--- polly/trunk/lib/Analysis/ScopInfo.cpp (original)
+++ polly/trunk/lib/Analysis/ScopInfo.cpp Sun Jan 31 19:55:08 2016
@@ -1987,13 +1987,8 @@ static inline unsigned getNumBlocksInReg
   if (!RN->isSubRegion())
     return 1;
 
-  unsigned NumBlocks = 0;
   Region *R = RN->getNodeAs<Region>();
-  for (auto BB : R->blocks()) {
-    (void)BB;
-    NumBlocks++;
-  }
-  return NumBlocks;
+  return std::distance(R->block_begin(), R->block_end());
 }
 
 static bool containsErrorBlock(RegionNode *RN, const Region &R, LoopInfo &LI,