From af675702bc533bea3ef4b1f76be6f40871ec08bf Mon Sep 17 00:00:00 2001
From: thartmann <unknown>
Date: Mon, 22 May 2017 09:23:59 +0200
Subject: [PATCH] 8180575: Null pointer dereference in LoadNode::Identity()
 Summary: Fixed a missing null check on the return value of
 AddPNode::Ideal_base_and_offset() found by Parfait. Reviewed-by: kvn

---
 src/share/vm/opto/memnode.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/share/vm/opto/memnode.cpp b/src/share/vm/opto/memnode.cpp
index 56a11f0db..2cfbae65b 100644
--- a/src/share/vm/opto/memnode.cpp
+++ b/src/share/vm/opto/memnode.cpp
@@ -1156,6 +1156,9 @@ Node *LoadNode::Identity( PhaseTransform *phase ) {
       // Use _idx of address base (could be Phi node) for boxed values.
       intptr_t   ignore = 0;
       Node*      base = AddPNode::Ideal_base_and_offset(in(Address), phase, ignore);
+      if (base == NULL) {
+        return this;
+      }
       this_iid = base->_idx;
     }
     const Type* this_type = bottom_type();
-- 
GitLab