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power use related_power_pin for voltage

This commit is contained in:
James Cherry 2019-04-20 15:02:58 -07:00
parent 47f668ffd8
commit 30974b0604
1 changed files with 16 additions and 2 deletions
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18
search/Power.cc
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@ -317,6 +317,7 @@ Power::findSwitchingPower(LibertyCell *cell,
activity,
volt,
switching);
volt = voltage(cell, to_port, dcalc_ap);
result.setSwitching(result.switching() + switching);
}
@ -343,10 +344,23 @@ Power::activity(const Pin *pin,
float
Power::voltage(LibertyCell *cell,
const LibertyPort *,
const LibertyPort *port,
const DcalcAnalysisPt *dcalc_ap)
{
// Should use cell pg_pin voltage name to voltage.
auto power_pin = port->relatedPowerPin();
if (power_pin) {
auto pg_port = cell->findPgPort(power_pin);
if (pg_port) {
auto volt_name = pg_port->voltageName();
auto library = cell->libertyLibrary();
float voltage;
bool exists;
library->supplyVoltage(volt_name, voltage, exists);
if (exists)
return voltage;
}
}
const Pvt *pvt = dcalc_ap->operatingConditions();
if (pvt == nullptr)
pvt = cell->libertyLibrary()->defaultOperatingConditions();