1 files changed, 5 insertions, 2 deletions
diff --git a/include/llvm/Analysis/Passes.h b/include/llvm/Analysis/Passes.h
index a81cb8733f..1020e07e0e 100644
--- a/include/llvm/Analysis/Passes.h
+++ b/include/llvm/Analysis/Passes.h
@@ -67,7 +67,9 @@ namespace llvm {
   //===--------------------------------------------------------------------===//
   //
   // createBasicAliasAnalysisPass - This pass implements the default alias
-  // analysis.
+  // analysis.  This analysis respects the noalias attribute, so it is not
+  // suitable for some interprocedural uses (see the discussion of noalias
+  // in AliasAnalysis.html for details).
   //
   ImmutablePass *createBasicAliasAnalysisPass();
 
@@ -75,7 +77,8 @@ namespace llvm {
   //
   // createInterproceduralBasicAliasAnalysisPass - This pass is similar to
   // baiscaa, except that it properly supports queries to values which live
-  // in different functions.
+  // in different functions.  Unlike the regular BasicAliasAnalysis, this
+  // implementation does not respect the noalias attribute.
   //
   ImmutablePass *createInterproceduralBasicAliasAnalysisPass();