src/share/vm/opto/arraycopynode.cpp

*** 655,665 ****
            if (may_modify_helper(t_oop, n->in(i), phase, ac)) {
              return true;
            }
          }
        }
!     } else if (n->Opcode() == Op_StoreCM) {
        // Ignore card mark stores
        return may_modify_helper(t_oop, n->in(MemNode::Memory), phase, ac);
      }
    }
  
--- 655,665 ----
            if (may_modify_helper(t_oop, n->in(i), phase, ac)) {
              return true;
            }
          }
        }
!     } else if (n->Opcode() == Opcodes::Op_StoreCM) {
        // Ignore card mark stores
        return may_modify_helper(t_oop, n->in(MemNode::Memory), phase, ac);
      }
    }