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report_check_types -max_cap -net

This commit is contained in:
James Cherry 2021-03-07 10:21:53 -07:00
parent 9940576780
commit 6ebaf3ebdb
7 changed files with 111 additions and 142 deletions
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13
include/sta/Sta.hh
View File

@ -649,14 +649,13 @@ public:
float &slack);
void checkCapacitanceLimitPreamble();
// Return the pin with the min/max capacitance limit slack.
// Return pins with the min/max slew limit slack.
// net=null check all nets
// corner=nullptr checks all corners.
Pin *pinMinCapacitanceLimitSlack(const Corner *corner,
const MinMax *min_max);
// Return all pins with min/max capacitance violations.
// corner=nullptr checks all corners.
PinSeq *pinCapacitanceLimitViolations(const Corner *corner,
const MinMax *min_max);
PinSeq *checkCapacitanceLimits(Net *net,
bool violators,
const Corner *corner,
const MinMax *min_max);
void reportCapacitanceLimitShortHeader();
void reportCapacitanceLimitShort(Pin *pin,
const Corner *corner,

123
search/CheckCapacitanceLimits.cc
View File

@ -222,91 +222,84 @@ CheckCapacitanceLimits::checkCapacitance(const Pin *pin,
}
PinSeq *
CheckCapacitanceLimits::pinCapacitanceLimitViolations(const Corner *corner,
const MinMax *min_max)
CheckCapacitanceLimits::checkCapacitanceLimits(Net *net,
bool violators,
const Corner *corner,
const MinMax *min_max)
{
const Network *network = sta_->network();
PinSeq *violators = new PinSeq;
LeafInstanceIterator *inst_iter = network->leafInstanceIterator();
while (inst_iter->hasNext()) {
Instance *inst = inst_iter->next();
pinCapacitanceLimitViolations(inst, corner, min_max, violators);
PinSeq *cap_pins = new PinSeq;
Slack min_slack = MinMax::min()->initValue();
if (net) {
NetPinIterator *pin_iter = network->pinIterator(net);
while (pin_iter->hasNext()) {
Pin *pin = pin_iter->next();
checkCapLimits(pin, violators, corner, min_max, cap_pins, min_slack);
}
delete pin_iter;
}
delete inst_iter;
// Check top level ports.
pinCapacitanceLimitViolations(network->topInstance(), corner, min_max, violators);
sort(violators, PinCapacitanceLimitSlackLess(corner, min_max, this, sta_));
return violators;
else {
LeafInstanceIterator *inst_iter = network->leafInstanceIterator();
while (inst_iter->hasNext()) {
Instance *inst = inst_iter->next();
checkCapLimits(inst, violators, corner, min_max, cap_pins, min_slack);
}
delete inst_iter;
// Check top level ports.
checkCapLimits(network->topInstance(), violators, corner, min_max,
cap_pins, min_slack);
}
sort(cap_pins, PinCapacitanceLimitSlackLess(corner, min_max, this, sta_));
// Keep the min slack pin unless all violators or net pins.
if (!cap_pins->empty() && !violators && net == nullptr)
cap_pins->resize(1);
return cap_pins;
}
void
CheckCapacitanceLimits::pinCapacitanceLimitViolations(Instance *inst,
const Corner *corner,
const MinMax *min_max,
PinSeq *violators)
CheckCapacitanceLimits::checkCapLimits(Instance *inst,
bool violators,
const Corner *corner,
const MinMax *min_max,
PinSeq *cap_pins,
float &min_slack)
{
const Network *network = sta_->network();
InstancePinIterator *pin_iter = network->pinIterator(inst);
while (pin_iter->hasNext()) {
Pin *pin = pin_iter->next();
if (checkPin(pin)) {
const Corner *corner1;
const RiseFall *rf;
float capacitance, limit, slack;
checkCapacitance(pin, corner, min_max, corner1, rf, capacitance, limit, slack );
if (rf && slack < 0.0 && !fuzzyInf(slack))
violators->push_back(pin);
}
checkCapLimits(pin, violators, corner, min_max, cap_pins, min_slack);
}
delete pin_iter;
}
Pin *
CheckCapacitanceLimits::pinMinCapacitanceLimitSlack(const Corner *corner,
const MinMax *min_max)
{
const Network *network = sta_->network();
Pin *min_slack_pin = nullptr;
float min_slack = MinMax::min()->initValue();
LeafInstanceIterator *inst_iter = network->leafInstanceIterator();
while (inst_iter->hasNext()) {
Instance *inst = inst_iter->next();
pinMinCapacitanceLimitSlack(inst, corner, min_max, min_slack_pin, min_slack);
}
delete inst_iter;
// Check top level ports.
pinMinCapacitanceLimitSlack(network->topInstance(), corner, min_max,
min_slack_pin, min_slack);
return min_slack_pin;
}
void
CheckCapacitanceLimits::pinMinCapacitanceLimitSlack(Instance *inst,
const Corner *corner,
const MinMax *min_max,
// Return values.
Pin *&min_slack_pin,
float &min_slack)
CheckCapacitanceLimits::checkCapLimits(Pin *pin,
bool violators,
const Corner *corner,
const MinMax *min_max,
PinSeq *cap_pins,
float &min_slack)
{
const Network *network = sta_->network();
InstancePinIterator *pin_iter = network->pinIterator(inst);
while (pin_iter->hasNext()) {
Pin *pin = pin_iter->next();
if (checkPin(pin)) {
const Corner *corner1;
const RiseFall *rf;
float capacitance, limit, slack;
checkCapacitance(pin, corner, min_max, corner1, rf, capacitance, limit, slack);
if (rf
&& !fuzzyInf(slack)
&& (min_slack_pin == nullptr
|| slack < min_slack)) {
min_slack_pin = pin;
min_slack = slack;
if (checkPin(pin)) {
const Corner *corner1;
const RiseFall *rf;
float capacitance, limit, slack;
checkCapacitance(pin, corner, min_max, corner1, rf, capacitance, limit, slack);
if (!fuzzyInf(slack)) {
if (violators) {
if (slack < 0.0)
cap_pins->push_back(pin);
}
else {
if (cap_pins->empty()
|| slack < min_slack) {
cap_pins->push_back(pin);
min_slack = slack;
}
}
}
}
delete pin_iter;
}
bool

33
search/CheckCapacitanceLimits.hh
View File

@ -42,12 +42,13 @@ public:
float &capacitance,
float &limit,
float &slack) const;
// Return pins with the min/max cap limit slack.
// net=null check all nets
// corner=nullptr checks all corners.
PinSeq *pinCapacitanceLimitViolations(const Corner *corner,
const MinMax *min_max);
// corner=nullptr checks all corners.
Pin *pinMinCapacitanceLimitSlack(const Corner *corner,
const MinMax *min_max);
PinSeq *checkCapacitanceLimits(Net *net,
bool violators,
const Corner *corner,
const MinMax *min_max);
protected:
void checkCapacitance(const Pin *pin,
@ -75,16 +76,18 @@ protected:
// Return values.
float &limit,
bool &limit_exists) const;
void pinCapacitanceLimitViolations(Instance *inst,
const Corner *corner,
const MinMax *min_max,
PinSeq *violators);
void pinMinCapacitanceLimitSlack(Instance *inst,
const Corner *corner,
const MinMax *min_max,
// Return values.
Pin *&min_slack_pin,
float &min_slack);
void checkCapLimits(Instance *inst,
bool violators,
const Corner *corner,
const MinMax *min_max,
PinSeq *cap_pins,
float &min_slack);
void checkCapLimits(Pin *pin,
bool violators,
const Corner *corner,
const MinMax *min_max,
PinSeq *cap_pins,
float &min_slack);
bool checkPin(Pin *pin);
const Sta *sta_;

17
search/Sta.cc
View File

@ -5021,20 +5021,15 @@ Sta::checkCapacitanceLimitPreamble()
ensureClkNetwork();
}
Pin *
Sta::pinMinCapacitanceLimitSlack(const Corner *corner,
const MinMax *min_max)
{
checkCapacitanceLimitPreamble();
return check_capacitance_limits_->pinMinCapacitanceLimitSlack(corner, min_max);
}
PinSeq *
Sta::pinCapacitanceLimitViolations(const Corner *corner,
const MinMax *min_max)
Sta::checkCapacitanceLimits(Net *net,
bool violators,
const Corner *corner,
const MinMax *min_max)
{
checkCapacitanceLimitPreamble();
return check_capacitance_limits_->pinCapacitanceLimitViolations(corner, min_max);
return check_capacitance_limits_->checkCapacitanceLimits(net, violators,
corner, min_max);
}
void

44
tcl/Search.tcl
View File

@ -438,38 +438,22 @@ proc report_fanout_limits { min_max all_violators verbose nosplit } {
}
}
proc report_capacitance_limits { corner min_max all_violators verbose nosplit } {
if { $all_violators } {
set violators [pin_capacitance_limit_violations $corner $min_max]
if { $violators != {} } {
report_line "${min_max} capacitance"
report_line ""
if { $verbose } {
foreach pin $violators {
report_capacitance_limit_verbose $pin $corner $min_max
report_line ""
}
} else {
report_capacitance_limit_short_header
foreach pin $violators {
report_capacitance_limit_short $pin $corner $min_max
}
report_line ""
}
}
} else {
set pin [pin_min_capacitance_limit_slack $corner $min_max]
if { $pin != "NULL" } {
report_line "${min_max} capacitance"
report_line ""
if { $verbose } {
proc report_capacitance_limits { net corner min_max violators verbose nosplit } {
set pins [check_capacitance_limits $net $violators $corner $min_max]
if { $pins != {} } {
report_line "${min_max} capacitance"
report_line ""
if { $verbose } {
foreach pin $pins {
report_capacitance_limit_verbose $pin $corner $min_max
report_line ""
} else {
report_capacitance_limit_short_header
report_capacitance_limit_short $pin $corner $min_max
report_line ""
report_line ""
}
} else {
report_capacitance_limit_short_header
foreach pin $pins {
report_capacitance_limit_short $pin $corner $min_max
}
report_line ""
}
}
}

7
tcl/Sta.tcl
View File

@ -228,8 +228,9 @@ proc find_timing_paths_cmd { cmd args_var } {
set group_count $endpoint_count
if [info exists keys(-group_count)] {
set group_count $keys(-group_count)
check_positive_integer "-group_count" $group_count
if { $group_count < 1 } {
sta_error 423 "-group_count must be a positive integer."
sta_error 423 "-group_count must be >= 1."
}
}
@ -486,10 +487,10 @@ proc_redirect report_check_types {
report_fanout_limits "min" $violators $verbose $nosplit
}
if { $max_capacitance } {
report_capacitance_limits $corner "max" $violators $verbose $nosplit
report_capacitance_limits $net $corner "max" $violators $verbose $nosplit
}
if { $min_capacitance } {
report_capacitance_limits $corner "min" $violators $verbose $nosplit
report_capacitance_limits $net $corner "min" $violators $verbose $nosplit
}
if { $min_pulse_width } {
if { $violators } {

16
tcl/StaTcl.i
View File

@ -4775,20 +4775,14 @@ report_fanout_limit_verbose(Pin *pin,
////////////////////////////////////////////////////////////////
Pin *
pin_min_capacitance_limit_slack(const Corner *corner,
const MinMax *min_max)
{
cmdLinkedNetwork();
return Sta::sta()->pinMinCapacitanceLimitSlack(corner, min_max);
}
PinSeq *
pin_capacitance_limit_violations(const Corner *corner,
const MinMax *min_max)
check_capacitance_limits(Net *net,
bool violators,
const Corner *corner,
const MinMax *min_max)
{
cmdLinkedNetwork();
return Sta::sta()->pinCapacitanceLimitViolations(corner, min_max);
return Sta::sta()->checkCapacitanceLimits(net, violators, corner, min_max);
}
void