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-rw-r--r--passes/hierarchy/hierarchy.cc13
1 files changed, 13 insertions, 0 deletions
diff --git a/passes/hierarchy/hierarchy.cc b/passes/hierarchy/hierarchy.cc
index e070afdd..028a0f0c 100644
--- a/passes/hierarchy/hierarchy.cc
+++ b/passes/hierarchy/hierarchy.cc
@@ -199,6 +199,19 @@ bool expand_module(RTLIL::Design *design, RTLIL::Module *module, bool flag_check
if (design->modules_.count(cell->type) == 0)
log_error("File `%s' from libdir does not declare module `%s'.\n", filename.c_str(), cell->type.c_str());
did_something = true;
+ } else
+ if (flag_check)
+ {
+ RTLIL::Module *mod = design->module(cell->type);
+ for (auto &conn : cell->connections())
+ if (conn.first[0] == '$' && '0' <= conn.first[1] && conn.first[1] <= '9') {
+ int id = atoi(conn.first.c_str()+1);
+ if (id < 0 || id >= GetSize(mod->ports))
+ log_error("Module `%s' referenced in module `%s' in cell `%s' has only %d ports, requested port %d.\n",
+ log_id(cell->type), log_id(module), log_id(cell), GetSize(mod->ports), id + 1);
+ } else if (mod->wire(conn.first) == nullptr || mod->wire(conn.first)->port_id == 0)
+ log_error("Module `%s' referenced in module `%s' in cell `%s' does not have a port named '%s'.\n",
+ log_id(cell->type), log_id(module), log_id(cell), log_id(conn.first));
}
if (cell->parameters.size() == 0)