src/share/vm/opto/matcher.cpp

*** 1643,1652 ****
--- 1643,1653 ----
      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 ) {