* this attempts to rewrite clock gating patterns into a form that is less likely to introduce combinational loops with clk2fflogic * can be disabled with -nopeepopt which is useful for testing clk2fflogic
* this attempts to rewrite clock gating patterns into a form that is less likely to introduce combinational loops with clk2fflogic * can be disabled with -nopeepopt which is useful for testing clk2fflogic