diff --git a/src/hotspot/share/opto/loopnode.hpp b/src/hotspot/share/opto/loopnode.hpp
index 3b281e0f77d..b1a0d95ddf2 100644
--- a/src/hotspot/share/opto/loopnode.hpp
+++ b/src/hotspot/share/opto/loopnode.hpp
@@ -1098,6 +1098,7 @@ private:
   // Compute the Ideal Node to Loop mapping
   PhaseIdealLoop(PhaseIterGVN& igvn, LoopOptsMode mode) :
     PhaseTransform(Ideal_Loop),
+    _loop_or_ctrl(igvn.C->comp_arena()),
     _igvn(igvn),
     _verify_me(nullptr),
     _verify_only(false),
@@ -1112,6 +1113,7 @@ private:
   // or only verify that the graph is valid if verify_me is null.
   PhaseIdealLoop(PhaseIterGVN& igvn, const PhaseIdealLoop* verify_me = nullptr) :
     PhaseTransform(Ideal_Loop),
+    _loop_or_ctrl(igvn.C->comp_arena()),
     _igvn(igvn),
     _verify_me(verify_me),
     _verify_only(verify_me == nullptr),