From a0792ca7fce6e00a77dd480ad455e1171bc7334f Mon Sep 17 00:00:00 2001
From: roland <unknown>
Date: Fri, 5 Dec 2014 18:03:15 +0100
Subject: [PATCH] 8066775: opto/node.hpp:355, assert(i < _max) failed: oob:
 i=1, _max=1 Summary: bad assumption on graph shape in CastIINode::Value if
 that part of the graph is becoming dead. Reviewed-by: kvn

---
 src/share/vm/opto/connode.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/share/vm/opto/connode.cpp b/src/share/vm/opto/connode.cpp
index 254852963..fe12b4f49 100644
--- a/src/share/vm/opto/connode.cpp
+++ b/src/share/vm/opto/connode.cpp
@@ -462,7 +462,8 @@ const Type *CastIINode::Value(PhaseTransform *phase) const {
   // Try to improve the type of the CastII if we recognize a CmpI/If
   // pattern.
   if (_carry_dependency) {
-    if (in(0) != NULL && (in(0)->is_IfFalse() || in(0)->is_IfTrue())) {
+    if (in(0) != NULL && in(0)->in(0) != NULL && in(0)->in(0)->is_If()) {
+      assert(in(0)->is_IfFalse() || in(0)->is_IfTrue(), "should be If proj");
       Node* proj = in(0);
       if (proj->in(0)->in(1)->is_Bool()) {
         Node* b = proj->in(0)->in(1);
-- 
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