mirrors/yosys
3
0
Fork 0
mirror of https://github.com/YosysHQ/yosys synced 2026-05-25 19:36:21 +00:00
Code Activity

abc: remove -lut/-luts

Browse source
This commit is contained in:
Lofty 2026-03-24 12:59:17 +00:00
parent 5fd39ff3e1
commit 3369cc525f
20 changed files with 35 additions and 118 deletions
Download patch file Download diff file Expand all files Collapse all files

70
passes/techmap/abc.cc
View file

@ -1875,12 +1875,6 @@ struct AbcPass : public Pass {
log(" for -liberty/-genlib with -constr:\n");
log("%s\n", fold_abc_cmd(ABC_COMMAND_CTR));
log("\n");
log(" for -lut/-luts (only one LUT size):\n");
log("%s\n", fold_abc_cmd(ABC_COMMAND_LUT "; lutpack -S 1"));
log("\n");
log(" for -lut/-luts (different LUT sizes):\n");
log("%s\n", fold_abc_cmd(ABC_COMMAND_LUT));
log("\n");
log(" for -sop:\n");
log("%s\n", fold_abc_cmd(ABC_COMMAND_SOP));
log("\n");
@ -1897,9 +1891,6 @@ struct AbcPass : public Pass {
log(" for -liberty/-genlib with -constr:\n");
log("%s\n", fold_abc_cmd(ABC_FAST_COMMAND_CTR));
log("\n");
log(" for -lut/-luts:\n");
log("%s\n", fold_abc_cmd(ABC_FAST_COMMAND_LUT));
log("\n");
log(" for -sop:\n");
log("%s\n", fold_abc_cmd(ABC_FAST_COMMAND_SOP));
log("\n");
@ -1944,26 +1935,9 @@ struct AbcPass : public Pass {
log(" maximum number of SOP products.\n");
log(" (replaces {P} in the default scripts above)\n");
log("\n");
log(" -lut <width>\n");
log(" generate netlist using luts of (max) the specified width.\n");
log("\n");
log(" -lut <w1>:<w2>\n");
log(" generate netlist using luts of (max) the specified width <w2>. All\n");
log(" luts with width <= <w1> have constant cost. for luts larger than <w1>\n");
log(" the area cost doubles with each additional input bit. the delay cost\n");
log(" is still constant for all lut widths.\n");
log("\n");
log(" -luts <cost1>,<cost2>,<cost3>,<sizeN>:<cost4-N>,..\n");
log(" generate netlist using luts. Use the specified costs for luts with 1,\n");
log(" 2, 3, .. inputs.\n");
log("\n");
log(" -sop\n");
log(" map to sum-of-product cells and inverters\n");
log("\n");
// log(" -mux4, -mux8, -mux16\n");
// log(" try to extract 4-input, 8-input, and/or 16-input muxes\n");
// log(" (ignored when used with -liberty/-genlib or -lut)\n");
// log("\n");
log(" -g type1,type2,...\n");
log(" Map to the specified list of gate types. Supported gates types are:\n");
// |---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|---v---|
@ -2136,14 +2110,6 @@ struct AbcPass : public Pass {
config.sop_products = "-P " + args[++argidx];
continue;
}
if (arg == "-lut" && argidx+1 < args.size()) {
lut_arg = args[++argidx];
continue;
}
if (arg == "-luts" && argidx+1 < args.size()) {
luts_arg = args[++argidx];
continue;
}
if (arg == "-sop") {
config.sop_mode = true;
continue;
@ -2225,40 +2191,6 @@ struct AbcPass : public Pass {
if (!config.constr_file.empty() && !is_absolute_path(config.constr_file))
config.constr_file = std::string(pwd) + "/" + config.constr_file;
// handle -lut argument
if (!lut_arg.empty()) {
size_t pos = lut_arg.find_first_of(':');
int lut_mode = 0, lut_mode2 = 0;
if (pos != string::npos) {
lut_mode = atoi(lut_arg.substr(0, pos).c_str());
lut_mode2 = atoi(lut_arg.substr(pos+1).c_str());
} else {
lut_mode = atoi(lut_arg.c_str());
lut_mode2 = lut_mode;
}
config.lut_costs.clear();
for (int i = 0; i < lut_mode; i++)
config.lut_costs.push_back(1);
for (int i = lut_mode; i < lut_mode2; i++)
config.lut_costs.push_back(2 << (i - lut_mode));
}
//handle -luts argument
if (!luts_arg.empty()){
config.lut_costs.clear();
for (auto &tok : split_tokens(luts_arg, ",")) {
auto parts = split_tokens(tok, ":");
if (GetSize(parts) == 0 && !config.lut_costs.empty())
config.lut_costs.push_back(config.lut_costs.back());
else if (GetSize(parts) == 1)
config.lut_costs.push_back(atoi(parts.at(0).c_str()));
else if (GetSize(parts) == 2)
while (GetSize(config.lut_costs) < std::atoi(parts.at(0).c_str()))
config.lut_costs.push_back(atoi(parts.at(1).c_str()));
else
log_cmd_error("Invalid -luts syntax.\n");
}
}
// handle -g argument
if (!g_arg.empty()){
for (auto g : split_tokens(g_arg, ",")) {
@ -2384,8 +2316,6 @@ struct AbcPass : public Pass {
}
}
if (!config.lut_costs.empty() && !(config.liberty_files.empty() && config.genlib_files.empty()))
log_cmd_error("Got -lut and -liberty/-genlib! These two options are exclusive.\n");
if (!config.constr_file.empty() && (config.liberty_files.empty() && config.genlib_files.empty()))
log_cmd_error("Got -constr but no -liberty/-genlib!\n");