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Change how to specify flops to ABC again

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This commit is contained in:
Eddie Hung 2019-07-10 17:54:56 -07:00
parent a092c48f03
commit 4a995c5d80
3 changed files with 63 additions and 33 deletions
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30
backends/aiger/xaiger.cc
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@ -273,17 +273,27 @@ struct XAigerWriter
toposort.node(cell->name);
auto r = flop_data.insert(std::make_pair(cell->type, std::make_pair(IdString(), IdString())));
if (r.second) {
auto it = inst_module->attributes.find("\\abc_flop");
if (it != inst_module->attributes.end()) {
auto abc_flop = it->second.decode_string();
auto tokens = split_tokens(abc_flop, ",");
if (tokens.size() != 4)
log_error("'abc_flop' attribute on module '%s' does not contain exactly four comma-separated tokens.\n", log_id(cell->type));
auto abc_flop_d = RTLIL::escape_id(tokens[1]);
auto abc_flop_q = RTLIL::escape_id(tokens[2]);
r.first->second = std::make_pair(abc_flop_d, abc_flop_q);
if (r.second && inst_module->attributes.count("\\abc_flop")) {
IdString abc_flop_d, abc_flop_q;
for (auto port_name : inst_module->ports) {
auto wire = inst_module->wire(port_name);
log_assert(wire);
if (wire->attributes.count("\\abc_flop_d")) {
if (abc_flop_d != IdString())
log_error("More than one port has the 'abc_flop_d' attribute set on module '%s'.\n", log_id(cell->type));
abc_flop_d = port_name;
}
if (wire->attributes.count("\\abc_flop_q")) {
if (abc_flop_q != IdString())
log_error("More than one port has the 'abc_flop_q' attribute set on module '%s'.\n", log_id(cell->type));
abc_flop_q = port_name;
}
}
if (abc_flop_d == IdString())
log_error("'abc_flop_d' attribute not found on any ports on module '%s'.\n", log_id(cell->type));
if (abc_flop_q == IdString())
log_error("'abc_flop_q' attribute not found on any ports on module '%s'.\n", log_id(cell->type));
r.first->second = std::make_pair(abc_flop_d, abc_flop_q);
}
auto abc_flop_d = r.first->second.first;