From 462cc7b0bf3d6af27d7689480c151dab0d4c703c Mon Sep 17 00:00:00 2001
From: roland <unknown>
Date: Fri, 16 Mar 2018 15:48:15 +0100
Subject: [PATCH] 8188223: IfNode::range_check_trap_proj() should handler dying
 subgraph with single if proj Reviewed-by: kvn

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

diff --git a/src/share/vm/opto/ifnode.cpp b/src/share/vm/opto/ifnode.cpp
index a5f0f3458..3101455e2 100644
--- a/src/share/vm/opto/ifnode.cpp
+++ b/src/share/vm/opto/ifnode.cpp
@@ -453,6 +453,9 @@ static Node* split_if(IfNode *iff, PhaseIterGVN *igvn) {
 // offset.  Return 2 if we had to negate the test.  Index is NULL if the check
 // is versus a constant.
 int IfNode::is_range_check(Node* &range, Node* &index, jint &offset) {
+  if (outcnt() != 2) {
+    return 0;
+  }
   Node* b = in(1);
   if (b == NULL || !b->is_Bool())  return 0;
   BoolNode* bn = b->as_Bool();
-- 
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