# HG changeset patch
# User roland
# Date 1508335599 -7200
# Node ID 24ebaf9d71981b3b36cf40d48314c8271c44781a
# Parent  1aecd400f2faa573d96396eee5b33cc53de48025
8188223: IfNode::range_check_trap_proj() should handler dying subgraph with single if proj
Reviewed-by: kvn

diff -r 1aecd400f2fa -r 24ebaf9d7198 src/hotspot/share/opto/ifnode.cpp
--- a/src/hotspot/share/opto/ifnode.cpp	Mon Oct 23 14:57:05 2017 +0000
+++ b/src/hotspot/share/opto/ifnode.cpp	Wed Oct 18 16:06:39 2017 +0200
@@ -477,6 +477,9 @@
 // if this IfNode follows a range check pattern return the projection
 // for the failed path
 ProjNode* IfNode::range_check_trap_proj(int& flip_test, Node*& l, Node*& r) {
+  if (outcnt() != 2) {
+    return NULL;
+  }
   Node* b = in(1);
   if (b == NULL || !b->is_Bool())  return NULL;
   BoolNode* bn = b->as_Bool();