--- a/hotspot/src/share/vm/opto/divnode.cpp	Fri Jul 18 09:04:01 2014 +0200
+++ b/hotspot/src/share/vm/opto/divnode.cpp	Fri Jul 25 10:06:17 2014 +0200
@@ -479,7 +479,10 @@
 
   if (i == 0) return NULL;      // Dividing by zero constant does not idealize
 
-  set_req(0,NULL);              // Dividing by a not-zero constant; no faulting
+  if (in(0) != NULL) {
+    phase->igvn_rehash_node_delayed(this);
+    set_req(0, NULL);           // Dividing by a not-zero constant; no faulting
+  }
 
   // Dividing by MININT does not optimize as a power-of-2 shift.
   if( i == min_jint ) return NULL;
@@ -578,7 +581,10 @@
 
   if (l == 0) return NULL;      // Dividing by zero constant does not idealize
 
-  set_req(0,NULL);              // Dividing by a not-zero constant; no faulting
+  if (in(0) != NULL) {
+    phase->igvn_rehash_node_delayed(this);
+    set_req(0, NULL);           // Dividing by a not-zero constant; no faulting
+  }
 
   // Dividing by MINLONG does not optimize as a power-of-2 shift.
   if( l == min_jlong ) return NULL;