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Check if output exists

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This commit is contained in:
Miodrag Milanovic 2024-09-16 12:35:16 +02:00
parent c335bad6e9
commit c1aa0bde87
1 changed files with 2 additions and 1 deletions
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3
himbaechel/uarch/ng-ultra/pack.cc
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@ -433,7 +433,8 @@ void NgUltraPacker::pack_dff_chains(void)
std::vector<CellInfo*> chain; std::vector<CellInfo*> chain;
CellInfo* start_dff = &ci; CellInfo* start_dff = &ci;
while(1) { while(1) {
NetInfo *o = dff->getPort(id_O); NetInfo *o = dff->getPort(id_O);
if (!o) break;
if (o->users.entries() != 1) break; if (o->users.entries() != 1) break;
dff = (*o->users.begin()).cell; dff = (*o->users.begin()).cell;
if (dff->type == id_NX_DFF && (*o->users.begin()).port == id_I) { if (dff->type == id_NX_DFF && (*o->users.begin()).port == id_I) {