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power muli-corner support

This commit is contained in:
James Cherry 2020-11-12 09:42:38 -07:00
parent 7e4e92076a
commit 9799eff905
2 changed files with 29 additions and 7 deletions
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32
search/Power.cc
View File

@ -418,7 +418,7 @@ Power::evalActivity(FuncExpr *expr,
if (port->direction()->isInternal())
return findSeqActivity(inst, port);
else {
Pin *pin = network_->findPin(inst, port);
Pin *pin = findLinkPin(inst, port);
if (pin)
return findActivity(pin);
}
@ -680,7 +680,7 @@ Power::findInputInternalPower(const Pin *pin,
if (when) {
LibertyPort *out_corner_port = findExprOutPort(when);
if (out_corner_port) {
const LibertyPort *out_port = cell->findLibertyPort(out_corner_port->name());
const LibertyPort *out_port = findLinkPort(cell, out_corner_port);
FuncExpr *func = out_port->function();
if (func && func->hasPort(port))
duty = evalActivityDifference(func, inst, port).duty();
@ -795,9 +795,8 @@ Power::findOutputInternalPower(const Pin *to_pin,
bool positive_unate = true;
const LibertyPort *from_corner_port = pwr->relatedPort();
if (from_corner_port) {
const LibertyPort *from_port = cell->findLibertyPort(from_corner_port->name());
positive_unate = isPositiveUnate(corner_cell, from_port, to_port);
const Pin *from_pin = network_->findPin(inst, from_port);
positive_unate = isPositiveUnate(corner_cell, from_corner_port, to_corner_port);
const Pin *from_pin = findLinkPin(inst, from_corner_port);
if (from_pin) {
from_vertex = graph_->pinLoadVertex(from_pin);
}
@ -850,8 +849,10 @@ Power::findInputDuty(const Pin *to_pin,
InternalPower *pwr)
{
const LibertyPort *from_port = pwr->relatedPort();
if (from_port) {
const LibertyPort *from_corner_port = pwr->relatedPort();
if (from_corner_port) {
const LibertyPort *from_port = findLinkPort(network_->libertyCell(inst),
from_corner_port);
const Pin *from_pin = network_->findPin(inst, from_port);
if (from_pin) {
FuncExpr *when = pwr->when();
@ -881,6 +882,23 @@ Power::findInputDuty(const Pin *to_pin,
return 0.0;
}
// Hack to find cell port that corresponds to corner_port.
LibertyPort *
Power::findLinkPort(const LibertyCell *cell,
const LibertyPort *corner_port)
{
return cell->findLibertyPort(corner_port->name());
}
Pin *
Power::findLinkPin(const Instance *inst,
const LibertyPort *corner_port)
{
const LibertyCell *cell = network_->libertyCell(inst);
LibertyPort *port = findLinkPort(cell, corner_port);
return network_->findPin(inst, port);
}
static bool
isPositiveUnate(const LibertyCell *cell,
const LibertyPort *from,

4
search/Power.hh
View File

@ -168,6 +168,10 @@ protected:
PwrActivity evalActivityDifference(FuncExpr *expr,
const Instance *inst,
const LibertyPort *cofactor_port);
LibertyPort *findLinkPort(const LibertyCell *cell,
const LibertyPort *corner_port);
Pin *findLinkPin(const Instance *inst,
const LibertyPort *corner_port);
private:
// Port/pin activities set by set_pin_activity.