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timing: Fix negative slack overflow issue

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Signed-off-by: David Shah <dave@ds0.me>
This commit is contained in:
David Shah 2019-02-25 11:03:59 +00:00
parent 4ec2bd1e5d
commit 89de4caf6c
1 changed files with 3 additions and 2 deletions
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5
common/timing.cc
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@ -611,8 +611,9 @@ struct Timing
continue;
delay_t dmax = crit_path->at(ClockPair{startdomain.first, startdomain.first}).path_delay;
for (size_t i = 0; i < net->users.size(); i++) {
float criticality = 1.0f - (float(nc.slack.at(i) - worst_slack.at(startdomain.first)) / dmax);
nc.criticality.at(i) = criticality;
float criticality =
1.0f - ((float(nc.slack.at(i)) - float(worst_slack.at(startdomain.first))) / dmax);
nc.criticality.at(i) = std::min<double>(1.0, std::max<double>(0.0, criticality));
}
nc.max_path_length = nd.max_path_length;
nc.cd_worst_slack = worst_slack.at(startdomain.first);