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Merge pull request #3077 from YosysHQ/claire/genlib 

Add genlib support to ABC command
This commit is contained in:
Claire Xen 2021-11-10 20:02:34 +01:00 committed by GitHub
parent 506acd52de c77d5a2aac
commit 4699ddcc1b
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 40 additions and 21 deletions
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61
passes/techmap/abc.cc
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@ -655,8 +655,9 @@ struct abc_output_filter
};
void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std::string script_file, std::string exe_file,
std::vector<std::string> &liberty_files, std::string constr_file, bool cleanup, vector<int> lut_costs, bool dff_mode, std::string clk_str,
bool keepff, std::string delay_target, std::string sop_inputs, std::string sop_products, std::string lutin_shared, bool fast_mode,
std::vector<std::string> &liberty_files, std::vector<std::string> &genlib_files, std::string constr_file,
bool cleanup, vector<int> lut_costs, bool dff_mode, std::string clk_str, bool keepff, std::string delay_target,
std::string sop_inputs, std::string sop_products, std::string lutin_shared, bool fast_mode,
const std::vector<RTLIL::Cell*> &cells, bool show_tempdir, bool sop_mode, bool abc_dress)
{
module = current_module;
@ -710,8 +711,11 @@ void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std::strin
std::string abc_script = stringf("read_blif %s/input.blif; ", tempdir_name.c_str());
if (!liberty_files.empty()) {
for (std::string liberty_file : liberty_files) abc_script += stringf("read_lib -w %s; ", liberty_file.c_str());
if (!liberty_files.empty() || !genlib_files.empty()) {
for (std::string liberty_file : liberty_files)
abc_script += stringf("read_lib -w %s; ", liberty_file.c_str());
for (std::string liberty_file : genlib_files)
abc_script += stringf("read_library %s; ", liberty_file.c_str());
if (!constr_file.empty())
abc_script += stringf("read_constr -v %s; ", constr_file.c_str());
} else
@ -739,7 +743,7 @@ void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std::strin
abc_script += fast_mode ? ABC_FAST_COMMAND_LUT : ABC_COMMAND_LUT;
if (all_luts_cost_same && !fast_mode)
abc_script += "; lutpack {S}";
} else if (!liberty_files.empty())
} else if (!liberty_files.empty() || !genlib_files.empty())
abc_script += constr_file.empty() ? (fast_mode ? ABC_FAST_COMMAND_LIB : ABC_COMMAND_LIB) : (fast_mode ? ABC_FAST_COMMAND_CTR : ABC_COMMAND_CTR);
else if (sop_mode)
abc_script += fast_mode ? ABC_FAST_COMMAND_SOP : ABC_COMMAND_SOP;
@ -1020,7 +1024,7 @@ void abc_module(RTLIL::Design *design, RTLIL::Module *current_module, std::strin
if (ifs.fail())
log_error("Can't open ABC output file `%s'.\n", buffer.c_str());
bool builtin_lib = liberty_files.empty();
bool builtin_lib = liberty_files.empty() && genlib_files.empty();
RTLIL::Design *mapped_design = new RTLIL::Design;
parse_blif(mapped_design, ifs, builtin_lib ? ID(DFF) : ID(_dff_), false, sop_mode);
@ -1302,10 +1306,10 @@ struct AbcPass : public Pass {
log("\n");
log(" if no -script parameter is given, the following scripts are used:\n");
log("\n");
log(" for -liberty without -constr:\n");
log(" for -liberty/-genlib without -constr:\n");
log("%s\n", fold_abc_cmd(ABC_COMMAND_LIB).c_str());
log("\n");
log(" for -liberty with -constr:\n");
log(" for -liberty/-genlib with -constr:\n");
log("%s\n", fold_abc_cmd(ABC_COMMAND_CTR).c_str());
log("\n");
log(" for -lut/-luts (only one LUT size):\n");
@ -1324,10 +1328,10 @@ struct AbcPass : public Pass {
log(" use different default scripts that are slightly faster (at the cost\n");
log(" of output quality):\n");
log("\n");
log(" for -liberty without -constr:\n");
log(" for -liberty/-genlib without -constr:\n");
log("%s\n", fold_abc_cmd(ABC_FAST_COMMAND_LIB).c_str());
log("\n");
log(" for -liberty with -constr:\n");
log(" for -liberty/-genlib with -constr:\n");
log("%s\n", fold_abc_cmd(ABC_FAST_COMMAND_CTR).c_str());
log("\n");
log(" for -lut/-luts:\n");
@ -1343,8 +1347,13 @@ struct AbcPass : public Pass {
log(" generate netlists for the specified cell library (using the liberty\n");
log(" file format).\n");
log("\n");
log(" -genlib <file>\n");
log(" generate netlists for the specified cell library (using the SIS Genlib\n");
log(" file format).\n");
log("\n");
log(" -constr <file>\n");
log(" pass this file with timing constraints to ABC. use with -liberty.\n");
log(" pass this file with timing constraints to ABC.\n");
log(" use with -liberty/-genlib.\n");
log("\n");
log(" a constr file contains two lines:\n");
log(" set_driving_cell <cell_name>\n");
@ -1390,7 +1399,7 @@ struct AbcPass : public Pass {
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 or -lut)\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");
@ -1446,7 +1455,7 @@ struct AbcPass : public Pass {
log(" preserve naming by an equivalence check between the original and post-ABC\n");
log(" netlists (experimental).\n");
log("\n");
log("When neither -liberty nor -lut is used, the Yosys standard cell library is\n");
log("When no target cell library is specified the Yosys standard cell library is\n");
log("loaded into ABC before the ABC script is executed.\n");
log("\n");
log("Note that this is a logic optimization pass within Yosys that is calling ABC\n");
@ -1473,7 +1482,7 @@ struct AbcPass : public Pass {
std::string exe_file = yosys_abc_executable;
std::string script_file, default_liberty_file, constr_file, clk_str;
std::vector<std::string> liberty_files;
std::vector<std::string> liberty_files, genlib_files;
std::string delay_target, sop_inputs, sop_products, lutin_shared = "-S 1";
bool fast_mode = false, dff_mode = false, keepff = false, cleanup = true;
bool show_tempdir = false, sop_mode = false;
@ -1556,6 +1565,10 @@ struct AbcPass : public Pass {
liberty_files.push_back(args[++argidx]);
continue;
}
if (arg == "-genlib" && argidx+1 < args.size()) {
genlib_files.push_back(args[++argidx]);
continue;
}
if (arg == "-constr" && argidx+1 < args.size()) {
constr_file = args[++argidx];
continue;
@ -1645,7 +1658,8 @@ struct AbcPass : public Pass {
}
extra_args(args, argidx, design);
if (liberty_files.empty() && !default_liberty_file.empty()) liberty_files.push_back(default_liberty_file);
if (genlib_files.empty() && liberty_files.empty() && !default_liberty_file.empty())
liberty_files.push_back(default_liberty_file);
rewrite_filename(script_file);
if (!script_file.empty() && !is_absolute_path(script_file) && script_file[0] != '+')
@ -1655,6 +1669,11 @@ struct AbcPass : public Pass {
if (!liberty_files[i].empty() && !is_absolute_path(liberty_files[i]))
liberty_files[i] = std::string(pwd) + "/" + liberty_files[i];
}
for (int i = 0; i < GetSize(genlib_files); i++) {
rewrite_filename(genlib_files[i]);
if (!genlib_files[i].empty() && !is_absolute_path(genlib_files[i]))
genlib_files[i] = std::string(pwd) + "/" + genlib_files[i];
}
rewrite_filename(constr_file);
if (!constr_file.empty() && !is_absolute_path(constr_file))
constr_file = std::string(pwd) + "/" + constr_file;
@ -1818,10 +1837,10 @@ struct AbcPass : public Pass {
}
}
if (!lut_costs.empty() && !liberty_files.empty())
log_cmd_error("Got -lut and -liberty! These two options are exclusive.\n");
if (!constr_file.empty() && liberty_files.empty())
log_cmd_error("Got -constr but no -liberty!\n");
if (!lut_costs.empty() && !(liberty_files.empty() && genlib_files.empty()))
log_cmd_error("Got -lut and -liberty/-genlib! These two options are exclusive.\n");
if (!constr_file.empty() && (liberty_files.empty() && genlib_files.empty()))
log_cmd_error("Got -constr but no -liberty/-genlib!\n");
if (enabled_gates.empty()) {
enabled_gates.insert("AND");
@ -1851,7 +1870,7 @@ struct AbcPass : public Pass {
initvals.set(&assign_map, mod);
if (!dff_mode || !clk_str.empty()) {
abc_module(design, mod, script_file, exe_file, liberty_files, constr_file, cleanup, lut_costs, dff_mode, clk_str, keepff,
abc_module(design, mod, script_file, exe_file, liberty_files, genlib_files, constr_file, cleanup, lut_costs, dff_mode, clk_str, keepff,
delay_target, sop_inputs, sop_products, lutin_shared, fast_mode, mod->selected_cells(), show_tempdir, sop_mode, abc_dress);
continue;
}
@ -1996,7 +2015,7 @@ struct AbcPass : public Pass {
clk_sig = assign_map(std::get<1>(it.first));
en_polarity = std::get<2>(it.first);
en_sig = assign_map(std::get<3>(it.first));
abc_module(design, mod, script_file, exe_file, liberty_files, constr_file, cleanup, lut_costs, !clk_sig.empty(), "$",
abc_module(design, mod, script_file, exe_file, liberty_files, genlib_files, constr_file, cleanup, lut_costs, !clk_sig.empty(), "$",
keepff, delay_target, sop_inputs, sop_products, lutin_shared, fast_mode, it.second, show_tempdir, sop_mode, abc_dress);
assign_map.set(mod);
}