Revert 'Fix a typo 'iff' => 'if''. iff is an abreviation of if and only if. See: http://en.wikipedia.org/wiki/If_and_only_if Commit 164767

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@164768 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 1 insertions, 1 deletions

diff --git a/include/llvm/Analysis/ScalarEvolutionExpressions.h b/include/llvm/Analysis/ScalarEvolutionExpressions.h
index 5e06c0a43b..ded12974fa 100644
--- a/include/llvm/Analysis/ScalarEvolutionExpressions.h
+++ b/include/llvm/Analysis/ScalarEvolutionExpressions.h
@@ -318,7 +318,7 @@ namespace llvm {
     /// an expressions A+B*x where A and B are loop invariant values.
     bool isAffine() const {
       // We know that the start value is invariant.  This expression is thus
-      // affine if the step is also invariant.
+      // affine iff the step is also invariant.
       return getNumOperands() == 2;
     }