Improve isImpliedCond comment a bit.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168914 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/ScalarEvolution.cpp b/lib/Analysis/ScalarEvolution.cpp
index e3ec268..852eb2b 100644
--- a/lib/Analysis/ScalarEvolution.cpp
+++ b/lib/Analysis/ScalarEvolution.cpp
@@ -6120,8 +6120,8 @@
       getTypeSizeInBits(ICI->getOperand(0)->getType()))
     return false;
 
-  // Now that we found a conditional branch that dominates the loop, check to
-  // see if it is the comparison we are looking for.
+  // Now that we found a conditional branch that dominates the loop or controls
+  // the loop latch. Check to see if it is the comparison we are looking for.
   ICmpInst::Predicate FoundPred;
   if (Inverse)
     FoundPred = ICI->getInversePredicate();