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checkInterClkUncertainty for null tgt clk 

Signed-off-by: James Cherry <cherry@parallaxsw.com>
This commit is contained in:
James Cherry 2021-11-18 10:41:12 -07:00
parent 8f01e53a94
commit fc3143609d
1 changed files with 9 additions and 10 deletions
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19
search/PathEnd.cc
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@ -433,13 +433,14 @@ PathEnd::checkInterClkUncertainty(const ClockEdge *src_clk_edge,
{
Sdc *sdc = sta->sdc();
if (src_clk_edge
&& src_clk_edge != sdc->defaultArrivalClockEdge()) {
&& src_clk_edge != sdc->defaultArrivalClockEdge()
&& tgt_clk_edge) {
sdc->clockUncertainty(src_clk_edge->clock(),
src_clk_edge->transition(),
tgt_clk_edge->clock(),
tgt_clk_edge->transition(),
check_role->pathMinMax(),
uncertainty, exists);
src_clk_edge->transition(),
tgt_clk_edge->clock(),
tgt_clk_edge->transition(),
check_role->pathMinMax(),
uncertainty, exists);
if (exists
&& check_role->genericRole() == TimingRole::setup())
uncertainty = -uncertainty;
@ -1889,10 +1890,8 @@ PathEndPathDelay::requiredTime(const StaState *sta) const
float src_clk_offset = sourceClkOffset(sta);
// Path delay includes target clk latency and timing check setup/hold
// margin or external departure at target.
if (minMax(sta) == MinMax::max())
return delay - src_clk_offset + tgt_clk_arrival - margin(sta);
else
return delay - src_clk_offset + tgt_clk_arrival + margin(sta);
return delay - src_clk_offset + tgt_clk_arrival
+ ((minMax(sta) == MinMax::max()) ? -margin(sta) : margin(sta));
}
}