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abc9 to disconnect mapped_mods POs correctly, and do not count $_NOT_

This commit is contained in:
Eddie Hung 2019-02-20 17:33:35 -08:00
parent 9e299a0908
commit e5b8bb9faa
1 changed files with 29 additions and 21 deletions
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50
passes/techmap/abc9.cc
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@ -568,21 +568,6 @@ void abc9_module(RTLIL::Design *design, RTLIL::Module *current_module, std::stri
{
if (builtin_lib)
{
cell_stats[RTLIL::unescape_id(c->type)]++;
if (c->type == "\\ZERO" || c->type == "\\ONE") {
RTLIL::SigSig conn;
conn.first = RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\Y").as_wire()->name)]);
conn.second = RTLIL::SigSpec(c->type == "\\ZERO" ? 0 : 1, 1);
module->connect(conn);
continue;
}
if (c->type == "\\BUF") {
RTLIL::SigSig conn;
conn.first = RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\Y").as_wire()->name)]);
conn.second = RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\A").as_wire()->name)]);
module->connect(conn);
continue;
}
if (c->type == "$_NOT_") {
RTLIL::Cell *cell;
RTLIL::SigBit a_bit = c->getPort("\\A").as_bit();
@ -621,16 +606,35 @@ void abc9_module(RTLIL::Design *design, RTLIL::Module *current_module, std::stri
RTLIL::SigBit(module->wires_[remap_name(y_bit.wire->name)], y_bit.offset),
driver_lut);
}
cell_stats["$lut"]++;
}
else {
cell = module->addCell(remap_name(c->name), "$_NOT_");
cell->setPort("\\A", RTLIL::SigBit(module->wires_[remap_name(a_bit.wire->name)], a_bit.offset));
cell->setPort("\\Y", RTLIL::SigBit(module->wires_[remap_name(y_bit.wire->name)], y_bit.offset));
cell_stats[RTLIL::unescape_id(c->type)]++;
}
if (markgroups) cell->attributes["\\abcgroup"] = map_autoidx;
design->select(module, cell);
continue;
}
cell_stats[RTLIL::unescape_id(c->type)]++;
if (c->type == "\\ZERO" || c->type == "\\ONE") {
RTLIL::SigSig conn;
conn.first = RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\Y").as_wire()->name)]);
conn.second = RTLIL::SigSpec(c->type == "\\ZERO" ? 0 : 1, 1);
module->connect(conn);
continue;
}
if (c->type == "\\BUF") {
RTLIL::SigSig conn;
conn.first = RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\Y").as_wire()->name)]);
conn.second = RTLIL::SigSpec(module->wires_[remap_name(c->getPort("\\A").as_wire()->name)]);
module->connect(conn);
continue;
}
if (c->type == "\\AND" || c->type == "\\OR" || c->type == "\\XOR" || c->type == "\\NAND" || c->type == "\\NOR" ||
c->type == "\\XNOR" || c->type == "\\ANDNOT" || c->type == "\\ORNOT") {
RTLIL::Cell *cell = module->addCell(remap_name(c->name), "$_" + c->type.substr(1) + "_");
@ -856,17 +860,21 @@ void abc9_module(RTLIL::Design *design, RTLIL::Module *current_module, std::stri
auto port_name = it.first;
if (!cell->output(port_name)) continue;
auto &signal = it.second;
if (!signal.is_bit()) continue;
if (output_bits.count(signal.as_bit()))
signal = module->addWire(NEW_ID);
auto bits = signal.bits();
for (auto &b : bits)
if (output_bits.count(b))
b = module->addWire(NEW_ID);
signal = std::move(bits);
}
}
// Do the same for module connections
for (auto &it : module->connections_) {
auto &signal = it.first;
if (!signal.is_bit()) continue;
if (output_bits.count(signal.as_bit()))
signal = module->addWire(NEW_ID);
auto bits = signal.bits();
for (auto &b : bits)
if (output_bits.count(b))
b = module->addWire(NEW_ID);
signal = std::move(bits);
}
// Stitch in mapped_mod's inputs/outputs into module