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abc9 to only disconnect output ports of AND and NOT gates

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This commit is contained in:
Eddie Hung 2019-02-21 11:15:47 -08:00
parent 2f96a0ed32
commit 6b96df41bc
1 changed files with 4 additions and 2 deletions
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6
passes/techmap/abc9.cc
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@ -536,6 +536,7 @@ void abc9_module(RTLIL::Design *design, RTLIL::Module *current_module, std::stri
RTLIL::Module *mapped_mod = mapped_design->modules_["\\netlist"]; RTLIL::Module *mapped_mod = mapped_design->modules_["\\netlist"];
if (mapped_mod == NULL) if (mapped_mod == NULL)
log_error("ABC output file does not contain a module `netlist'.\n"); log_error("ABC output file does not contain a module `netlist'.\n");
pool<RTLIL::SigBit> output_bits; pool<RTLIL::SigBit> output_bits;
for (auto &it : mapped_mod->wires_) { for (auto &it : mapped_mod->wires_) {
RTLIL::Wire *w = it.second; RTLIL::Wire *w = it.second;
@ -852,10 +853,12 @@ void abc9_module(RTLIL::Design *design, RTLIL::Module *current_module, std::stri
// module->connect(conn); // module->connect(conn);
// } // }
// Go through all cell output connections, // Go through all AND and NOT output connections,
// and for those output ports driving wires // and for those output ports driving wires
// also driven by mapped_mod, disconnect them // also driven by mapped_mod, disconnect them
for (auto cell : module->cells()) { for (auto cell : module->cells()) {
if (!cell->type.in("$_AND_", "$_NOT_"))
continue;
for (auto &it : cell->connections_) { for (auto &it : cell->connections_) {
auto port_name = it.first; auto port_name = it.first;
if (!cell->output(port_name)) continue; if (!cell->output(port_name)) continue;
@ -1131,7 +1134,6 @@ struct Abc9Pass : public Pass {
std::string delay_target, sop_inputs, sop_products, lutin_shared = "-S 1"; std::string delay_target, sop_inputs, sop_products, lutin_shared = "-S 1";
bool fast_mode = false, dff_mode = false, keepff = false, cleanup = true; bool fast_mode = false, dff_mode = false, keepff = false, cleanup = true;
bool show_tempdir = false, sop_mode = false; bool show_tempdir = false, sop_mode = false;
show_tempdir = true; cleanup = true;
vector<int> lut_costs; vector<int> lut_costs;
markgroups = false; markgroups = false;