Add facility that allows LoopPass to re-insert a loop into

Loop Pass Manager's queue.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34509 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 6 insertions, 1 deletions

diff --git a/include/llvm/Analysis/LoopPass.h b/include/llvm/Analysis/LoopPass.h
index 046da6f13d..b3d4c6e897 100644
--- a/include/llvm/Analysis/LoopPass.h
+++ b/include/llvm/Analysis/LoopPass.h
@@ -85,10 +85,15 @@ public:
   // Delete loop from the loop queue. This is used by Loop pass to inform
   // Loop Pass Manager that it should skip rest of the passes for this loop.
   void deleteLoopFromQueue(Loop *L);
+
+  // Reoptimize this loop. LPPassManager will re-insert this loop into the
+  // queue. This allows LoopPass to change loop nest for the loop. This
+  // utility may send LPPassManager into infinite loops so use caution.
+  void redoLoop(Loop *L);
 private:
   LoopQueue *LQ;
   bool skipThisLoop;
-
+  bool redoThisLoop;
 };
 
 } // End llvm namespace