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set_logic_one/zero bidir loop 

Signed-off-by: James Cherry <cherry@parallaxsw.com>
This commit is contained in:
James Cherry 2024-05-27 19:33:08 -07:00
parent 20ae641fcb
commit 8a6c4c6d88
1 changed files with 29 additions and 22 deletions
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51
search/Sim.cc
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@ -802,31 +802,38 @@ Sim::setPinValue(const Pin *pin,
Vertex *vertex, *bidirect_drvr_vertex; Vertex *vertex, *bidirect_drvr_vertex;
graph_->pinVertices(pin, vertex, bidirect_drvr_vertex); graph_->pinVertices(pin, vertex, bidirect_drvr_vertex);
// Set vertex constant flags. // Set vertex constant flags.
if (vertex) bool value_changed = false;
if (vertex) {
value_changed |= value != vertex->simValue();
setSimValue(vertex, value); setSimValue(vertex, value);
if (bidirect_drvr_vertex)
setSimValue(bidirect_drvr_vertex, value);
Instance *inst = network_->instance(pin);
if (logicValueZeroOne(value))
instances_with_const_pins_.insert(inst);
instances_to_annotate_.insert(inst);
if (network_->isLeaf(inst)
&& network_->direction(pin)->isAnyInput()) {
if (eval_queue_.empty()
|| (eval_queue_.back() != inst))
eval_queue_.push(inst);
} }
else if (network_->isDriver(pin)) { if (bidirect_drvr_vertex) {
// Enqueue instances with input pins connected to net. value_changed |= value != bidirect_drvr_vertex->simValue();
PinConnectedPinIterator *pin_iter=network_->connectedPinIterator(pin); setSimValue(bidirect_drvr_vertex, value);
while (pin_iter->hasNext()) { }
const Pin *pin1 = pin_iter->next(); if (value_changed) {
if (pin1 != pin Instance *inst = network_->instance(pin);
&& network_->isLoad(pin1)) if (logicValueZeroOne(value))
setPinValue(pin1, value); instances_with_const_pins_.insert(inst);
instances_to_annotate_.insert(inst);
if (network_->isLeaf(inst)
&& network_->direction(pin)->isAnyInput()) {
if (eval_queue_.empty()
|| (eval_queue_.back() != inst))
eval_queue_.push(inst);
}
else if (network_->isDriver(pin)) {
// Enqueue instances with input pins connected to net.
PinConnectedPinIterator *pin_iter=network_->connectedPinIterator(pin);
while (pin_iter->hasNext()) {
const Pin *pin1 = pin_iter->next();
if (pin1 != pin
&& network_->isLoad(pin1))
setPinValue(pin1, value);
}
delete pin_iter;
} }
delete pin_iter;
} }
} }
} }