From e02c0fccf9b66904a5fe514e5db5325fc43c8d6e Mon Sep 17 00:00:00 2001
From: duke <duke@openjdk.org>
Date: Mon, 13 Feb 2023 09:18:25 +0000
Subject: [PATCH] Backport 94575d14f47e2dfb11b671bce26b69270b6bb3c8

---
 src/hotspot/share/opto/ifnode.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/hotspot/share/opto/ifnode.cpp b/src/hotspot/share/opto/ifnode.cpp
index c61e66de086..ae553351ead 100644
--- a/src/hotspot/share/opto/ifnode.cpp
+++ b/src/hotspot/share/opto/ifnode.cpp
@@ -723,6 +723,7 @@ bool IfNode::is_ctrl_folds(Node* ctrl, PhaseIterGVN* igvn) {
     ctrl->in(0)->as_If()->cmpi_folds(igvn) &&
     // Must compare same value
     ctrl->in(0)->in(1)->in(1)->in(1) != NULL &&
+    ctrl->in(0)->in(1)->in(1)->in(1) != igvn->C->top() &&
     ctrl->in(0)->in(1)->in(1)->in(1) == in(1)->in(1)->in(1);
 }