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abc: Improved recovered netnames, also preserve src on nets with dress 

Signed-off-by: David Shah <davey1576@gmail.com>
This commit is contained in:
David Shah 2018-12-16 17:44:37 +00:00
parent 7ef2333497
commit 58c22dae31
1 changed files with 13 additions and 4 deletions
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17
passes/techmap/abc.cc
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@ -327,16 +327,22 @@ void extract_cell(RTLIL::Cell *cell, bool keepff)
}
}
std::string remap_name(RTLIL::IdString abc_name)
std::string remap_name(RTLIL::IdString abc_name, RTLIL::Wire **orig_wire = nullptr)
{
std::string abc_sname = abc_name.substr(1);
if (abc_sname.substr(0, 5) == "ys__n") {
int sid = std::stoi(abc_sname.substr(5));
bool inv = abc_sname.back() == 'v';
for (auto sig : signal_list) {
if (sig.id == sid) {
if (sig.id == sid && sig.bit.wire != nullptr) {
std::stringstream sstr;
sstr << "$abc$" << map_autoidx << "$" << log_signal(sig.bit) << (inv ? "_inv" : "");
sstr << "$abc$" << map_autoidx << "$" << sig.bit.wire->name.substr(1);
if (sig.bit.wire->width != 1)
sstr << "[" << sig.bit.offset << "]";
if (inv)
sstr << "_inv";
if (orig_wire != nullptr)
*orig_wire = sig.bit.wire;
return sstr.str();
}
}
@ -1000,7 +1006,10 @@ void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std::strin
log_error("ABC output file does not contain a module `netlist'.\n");
for (auto &it : mapped_mod->wires_) {
RTLIL::Wire *w = it.second;
RTLIL::Wire *wire = module->addWire(remap_name(w->name));
RTLIL::Wire *orig_wire = nullptr;
RTLIL::Wire *wire = module->addWire(remap_name(w->name, &orig_wire));
if (orig_wire != nullptr && orig_wire->attributes.count("\\src"))
wire->attributes["\\src"] = orig_wire->attributes["\\src"];
if (markgroups) wire->attributes["\\abcgroup"] = map_autoidx;
design->select(module, wire);
}