[llvm] r279233 - [LoopVectorize] Don't copy std::vector in for-range loop.

[Benjamin Kramer via llvm-commits]

Author: d0k
Date: Fri Aug 19 07:44:24 2016
New Revision: 279233

URL: http://llvm.org/viewvc/llvm-project?rev=279233&view=rev
Log:
[LoopVectorize] Don't copy std::vector in for-range loop.

Modified:
    llvm/trunk/lib/Transforms/Vectorize/LoopVectorize.cpp

Modified: llvm/trunk/lib/Transforms/Vectorize/LoopVectorize.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Vectorize/LoopVectorize.cpp?rev=279233&r1=279232&r2=279233&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Vectorize/LoopVectorize.cpp (original)
+++ llvm/trunk/lib/Transforms/Vectorize/LoopVectorize.cpp Fri Aug 19 07:44:24 2016
@@ -227,7 +227,7 @@ static bool hasCyclesInLoopBody(const Lo
   if (!L.empty())
     return true;
 
-  for (const auto SCC :
+  for (const auto &SCC :
        make_range(scc_iterator<Loop, LoopBodyTraits>::begin(L),
                   scc_iterator<Loop, LoopBodyTraits>::end(L))) {
     if (SCC.size() > 1) {