timing arc

jackychan2010

问题如下，我的设计中是出现组合逻辑反馈，在综合的时候遇到以下问题。
Warning: Disabling timing arc between pins 'H01' and 'N01' on cell 'u_clock_u_clk_sw_C42'
         to break a timing loop. (OPT-314)
Warning: Disabling timing arc between pins 'H01' and 'N01' on cell 'u_clock_u_clk_sw_C42'
         to break a timing loop. (OPT-314)
Warning: Disabling timing arc between pins 'H01' and 'N01' on cell 'u_clock_u_clk_sw_C42'
         to break a timing loop. (OPT-314)
Warning: Disabling timing arc between pins 'H01' and 'N01' on cell 'u_clock_u_clk_sw_C42'
         to break a timing loop. (OPT-314)
Warning: Disabling timing arc between pins 'H01' and 'N01' on cell 'u_clock_u_clk_sw_C43'
         to break a timing loop. (OPT-314)
Warning: Disabling timing arc between pins 'H01' and 'N01' on cell 'u_clock_u_clk_sw_C43'
         to break a timing loop. (OPT-314)

请问综合出来的结果会影响我的功能吗？以及该如何处理呢？谢谢