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/CodeGen/SelectionDAG/ScheduleDAGFast.cpp b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp
index 7ef213a0a38..61a3fd72871 100644
--- a/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/ScheduleDAGFast.cpp
@@ -460,7 +460,7 @@ static bool CheckForLiveRegDef(SUnit *SU, unsigned Reg,
   bool Added = false;
   for (MCRegAliasIterator AI(Reg, TRI, true); AI.isValid(); ++AI) {
     if (LiveRegDefs[*AI] && LiveRegDefs[*AI] != SU) {
-      if (RegAdded.insert(*AI)) {
+      if (RegAdded.insert(*AI).second) {
         LRegs.push_back(*AI);
         Added = true;
       }