caiyu/nextpnr
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

nexus: Improve error reporting for illegal carry chains

Browse Source 
Signed-off-by: gatecat <gatecat@ds0.me>
This commit is contained in:
gatecat 2023-12-18 12:18:22 +00:00 committed by myrtle
parent 535709a9a9
commit 56587859d3
1 changed files with 7 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
nexus/pack.cc
View File

@ -1318,8 +1318,14 @@ struct NexusPacker
CellInfo *ci = cell.second.get();
if (ci->type != id_CCU2)
continue;
if (ci->getPort(id_CIN) != nullptr)
NetInfo *cin = ci->getPort(id_CIN);
if (cin) {
if (cin->driver.cell && cin->driver.cell->type != id_CCU2) {
log_error("CCU2 '%s' CIN net '%s' driven by non-CCU2 cell '%s'.\n",
ctx->nameOf(ci), ctx->nameOf(cin), ctx->nameOf(cin->driver.cell));
}
continue;
}
roots.push_back(ci);
}
for (CellInfo *root : roots) {