-source_latency_included的用法

Input delays can already include clock source latency. By defaultthe clock source latency of the related clock is added to the input delay value,but when the -source_latency_included option is specified, the clock sourcelatency is not added because it was factored into the input delay value.

再补充一个，下面这段话是啥意思来着?

By default, set_input_delay removes any other input delays to theport except for those with the same -clock, -clock_fall, and -reference_pin combination.Multiple input delays relative to different clocks, clock edges, or referencepins can be specified using the -add_delay option.

论文有点冷清...把问题搬到其他论坛去吧。哎