src/share/vm/opto/matcher.cpp

@@ -1643,10 +1643,11 @@
     return shared_node;
   }
 
   // Build the object to represent this state & prepare for recursive calls
   MachNode *mach = s->MachNodeGenerator(rule);
+  guarantee(mach != NULL, "Missing MachNode");
   mach->_opnds[0] = s->MachOperGenerator(_reduceOp[rule]);
   assert( mach->_opnds[0] != NULL, "Missing result operand" );
   Node *leaf = s->_leaf;
   // Check for instruction or instruction chain rule
   if( rule >= _END_INST_CHAIN_RULE || rule < _BEGIN_INST_CHAIN_RULE ) {