Make a comment better.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43379 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Analysis/BasicAliasAnalysis.cpp b/lib/Analysis/BasicAliasAnalysis.cpp
index d986adec01f78cb9f4aeb38bab4e159fb435bede..89b5d5c3cb9000fe6333ccdc26a2d99ea808341d 100644 (file)
--- a/lib/Analysis/BasicAliasAnalysis.cpp
+++ b/lib/Analysis/BasicAliasAnalysis.cpp
@@ -338,9 +338,11 @@ BasicAliasAnalysis::alias(const Value *V1, unsigned V1Size,
           return NoAlias;
           
         // Otherwise, nothing is known...
+      
       } else if (O1 != O2) {
         if (!isa<Argument>(O1))
-          // If they are two different objects, we know that we have no alias...
+          // If they are two different objects, and neither is an argument,
+          // we know that we have no alias...
           return NoAlias;
       }