From 093e287a1ef00865be4d0c49dc0a65cc97466d90 Mon Sep 17 00:00:00 2001 From: Claire Xenia Wolf Date: Wed, 10 Nov 2021 16:40:47 +0100 Subject: [PATCH] Add genlib support to ABC command Signed-off-by: Claire Xenia Wolf --- passes/techmap/abc.cc | 61 ++++++++++++++++++++++++++++--------------- 1 file changed, 40 insertions(+), 21 deletions(-) diff --git a/passes/techmap/abc.cc b/passes/techmap/abc.cc index 49a0fad77..9a3e0f170 100644 --- a/passes/techmap/abc.cc +++ b/passes/techmap/abc.cc @@ -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 &liberty_files, std::string constr_file, bool cleanup, vector 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 &liberty_files, std::vector &genlib_files, std::string constr_file, + bool cleanup, vector 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 &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 \n"); + log(" generate netlists for the specified cell library (using the SIS Genib\n"); + log(" file format).\n"); + log("\n"); log(" -constr \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 \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 liberty_files; + std::vector 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); } -- 2.30.2