Add a comment to clarify why there isn't any code in this spot.

llvm-svn: 76505

1 files changed, 2 insertions, 0 deletions

diff --git a/llvm/lib/Analysis/ScalarEvolution.cpp b/llvm/lib/Analysis/ScalarEvolution.cpp
index 2b97a8cc13d..3b388dccdee 100644
--- a/llvm/lib/Analysis/ScalarEvolution.cpp
+++ b/llvm/lib/Analysis/ScalarEvolution.cpp
@@ -4324,6 +4324,8 @@ bool ScalarEvolution::isKnownPredicate(ICmpInst::Predicate Pred,
     break;
   }
   case ICmpInst::ICMP_EQ:
+    // The check at the top of the function catches the case where
+    // the values are known to be equal.
     break;
   }
   return false;