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abc9_ops: -prep_times -> -prep_delays; add doc

This commit is contained in:
Eddie Hung 2020-01-14 13:21:58 -08:00
parent 593897ffc0
commit ec95fbb273
2 changed files with 23 additions and 11 deletions
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6
passes/techmap/abc9.cc
View File

@ -251,9 +251,9 @@ struct Abc9Pass : public ScriptPass
run("abc9_ops -check");
run("scc -set_attr abc9_scc_id {}");
if (help_mode)
run("abc9_ops -mark_scc -prep_times -prep_xaiger [-dff]", "(option for -dff)");
run("abc9_ops -mark_scc -prep_delays -prep_xaiger [-dff]", "(option for -dff)");
else
run("abc9_ops -mark_scc -prep_times -prep_xaiger" + std::string(dff_mode ? " -dff" : ""), "(option for -dff)");
run("abc9_ops -mark_scc -prep_delays -prep_xaiger" + std::string(dff_mode ? " -dff" : ""), "(option for -dff)");
run("select -set abc9_holes A:abc9_holes");
run("flatten -wb @abc9_holes");
run("techmap @abc9_holes");
@ -267,7 +267,7 @@ struct Abc9Pass : public ScriptPass
if (check_label("map")) {
if (help_mode) {
run("foreach module in selection");
run(" abc9_ops -write_box [(-box <path>)|(null)] <abc-temp-dir>/input.box");
run(" abc9_ops -write_box [<value from -box>|(null)] <abc-temp-dir>/input.box");
run(" write_xaiger -map <abc-temp-dir>/input.sym <abc-temp-dir>/input.xaig");
run(" abc9_exe [options] -cwd <abc-temp-dir> -box <abc-temp-dir>/input.box");
run(" read_aiger -xaiger -wideports -module_name <module-name>$abc9 -map <abc-temp-dir>/input.sym <abc-temp-dir>/output.aig");

28
passes/techmap/abc9_ops.cc
View File

@ -383,7 +383,7 @@ void prep_xaiger(RTLIL::Module *module, bool dff)
}
}
void prep_times(RTLIL::Design *design)
void prep_delays(RTLIL::Design *design)
{
std::set<int> delays;
pool<Module*> flops;
@ -918,6 +918,14 @@ struct Abc9OpsPass : public Pass {
log("mapping, and is expected to be called in conjunction with other operations from\n");
log("the `abc9' script pass. Only fully-selected modules are supported.\n");
log("\n");
log(" -check\n");
log(" check that the design is valid, e.g. (* abc9_box_id *) values are unique,\n");
log(" (* abc9_carry *) is only given for one input/output port, etc.\n");
log("\n");
log(" -prep_delays\n");
log(" insert `$__ABC9_DELAY' blackbox cells into the design to account for\n");
log(" certain delays, e.g. (* abc9_required *) values.\n");
log("\n");
log(" -mark_scc\n");
log(" for an arbitrarily chosen cell in each unique SCC of each selected module\n");
log(" (tagged with an (* abc9_scc_id = <int> *) attribute), temporarily mark all\n");
@ -938,6 +946,10 @@ struct Abc9OpsPass : public Pass {
log(" compute the clock domain and initial value of each flop in the design.\n");
log(" process the '$holes' module to support clock-enable functionality.\n");
log("\n");
log(" -write_box (<src>|(null)) <dst>\n");
log(" copy the existing box file from <src> (skip if '(null)') and append any\n");
log(" new box definitions.\n");
log("\n");
log(" -reintegrate\n");
log(" for each selected module, re-intergrate the module '<module-name>$abc9'\n");
log(" by first recovering ABC9 boxes, and then stitching in the remaining primary\n");
@ -949,7 +961,7 @@ struct Abc9OpsPass : public Pass {
log_header(design, "Executing ABC9_OPS pass (helper functions for ABC9).\n");
bool check_mode = false;
bool prep_times_mode = false;
bool prep_delays_mode = false;
bool mark_scc_mode = false;
bool prep_dff_mode = false;
bool prep_xaiger_mode = false;
@ -976,8 +988,8 @@ struct Abc9OpsPass : public Pass {
prep_xaiger_mode = true;
continue;
}
if (arg == "-prep_times") {
prep_times_mode = true;
if (arg == "-prep_delays") {
prep_delays_mode = true;
continue;
}
if (arg == "-write_box" && argidx+2 < args.size()) {
@ -999,16 +1011,16 @@ struct Abc9OpsPass : public Pass {
}
extra_args(args, argidx, design);
if (!(check_mode || mark_scc_mode || prep_times_mode || prep_xaiger_mode || prep_dff_mode || !write_box_src.empty() || reintegrate_mode))
log_cmd_error("At least one of -check, -mark_scc, -prep_{times,xaiger,dff}, -write_box, -reintegrate must be specified.\n");
if (!(check_mode || mark_scc_mode || prep_delays_mode || prep_xaiger_mode || prep_dff_mode || !write_box_src.empty() || reintegrate_mode))
log_cmd_error("At least one of -check, -mark_scc, -prep_{delays,xaiger,dff}, -write_box, -reintegrate must be specified.\n");
if (dff_mode && !prep_xaiger_mode)
log_cmd_error("'-dff' option is only relevant for -prep_xaiger.\n");
if (check_mode)
check(design);
if (prep_times_mode)
prep_times(design);
if (prep_delays_mode)
prep_delays(design);
for (auto mod : design->selected_modules()) {
if (mod->get_bool_attribute("\\abc9_holes"))