Update SetVector to rely on the underlying set's insert to return a pair<iterator, bool>

This is to be consistent with StringSet and ultimately with the standard
library's associative container insert function.

This lead to updating SmallSet::insert to return pair<iterator, bool>,
and then to update SmallPtrSet::insert to return pair<iterator, bool>,
and then to update all the existing users of those functions...

llvm-svn: 222334

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp b/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp
index 1239f75..a4fdd55 100644
--- a/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp
+++ b/llvm/lib/Transforms/Utils/SimplifyIndVar.cpp
@@ -347,7 +347,7 @@ static void pushIVUsers(
     // Also ensure unique worklist users.
     // If Def is a LoopPhi, it may not be in the Simplified set, so check for
     // self edges first.
-    if (UI != Def && Simplified.insert(UI))
+    if (UI != Def && Simplified.insert(UI).second)
       SimpleIVUsers.push_back(std::make_pair(UI, Def));
   }
 }