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abc9_ops: add 'dff' label for auto handling of (* abc9_flop *) boxes

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This commit is contained in:
Eddie Hung 2020-04-13 09:38:07 -07:00
parent accfc70fc2
commit 95763c8d18
9 changed files with 403 additions and 640 deletions
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89
passes/techmap/abc9.cc
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@ -151,8 +151,8 @@ struct Abc9Pass : public ScriptPass
log(" specified).\n");
log("\n");
log(" -dff\n");
log(" also pass $_ABC9_FF_ cells through to ABC. modules with many clock\n");
log(" domains are marked as such and automatically partitioned by ABC.\n");
log(" also pass $_DFF_[NP]_ cells through to ABC. modules with many clock\n");
log(" domains are supported and automatically partitioned by ABC.\n");
log("\n");
log(" -nocleanup\n");
log(" when this option is used, the temporary files created by this pass\n");
@ -274,26 +274,74 @@ struct Abc9Pass : public ScriptPass
void script() YS_OVERRIDE
{
if (check_label("pre")) {
if (check_label("check")) {
run("abc9_ops -check");
}
if (check_label("dff", "(only if -dff)")) {
if (dff_mode || help_mode) {
run("abc9_ops -prep_dff_hier"); // derive all used (* abc9_flop *) modules
run("design -stash $abc9");
run("design -copy-from $abc9 @$abc9_flops"); // copy derived modules in
run("proc");
run("wbflip");
run("techmap");
run("opt");
run("abc9_ops -prep_dff_map"); // rewrite specify
// TODO: Select fan-in cone $_DFF_[NP]_.Q
run("setattr -set submod \"$abc9_flop\" t:* t:$_DFF_N_ %d t:$_DFF_P_ %d");
run("submod");
run("design -copy-to $abc9 *_$abc9_flop"); // copy submod out
run("delete *_$abc9_flop");
if (help_mode) {
run("foreach module in design");
run(" cd <module-name>");
run(" rename <module-name>_$abc9_flop _TECHMAP_REPLACE_");
run(" cd");
}
else {
// Rename all submod-s to _TECHMAP_REPLACE_ to inherit name + attrs
for (auto module : active_design->selected_modules()) {
run(stringf("cd %s", log_id(module->name)));
run(stringf("rename %s_$abc9_flop _TECHMAP_REPLACE_", module->name.c_str()));
run("cd");
}
}
run("design -stash $abc9_map");
run("design -load $abc9");
run("abc9_ops -prep_dff_unmap"); // create $abc9_unmap design
run("techmap -map %$abc9_map"); // techmap user design into submod + $_DFF_[NP]_
run("setattr -mod -set whitebox 1 -set abc9_flop 1 -set abc9_box 1 *_$abc9_flop");
if (!help_mode) {
// TODO: Need a way to delete saved designs?
auto it = saved_designs.find("$abc9_map");
delete it->second;
saved_designs.erase(it);
// TODO: Need a way to delete selections
active_design->selection_vars.erase(ID($abc9_flops));
active_design->selection_vars.erase(ID($abc9_cells));
}
}
}
if (check_label("pre")) {
run("scc -set_attr abc9_scc_id {}");
if (help_mode)
run("abc9_ops -mark_scc -prep_delays -prep_xaiger [-dff]", "(option for -dff)");
else
run("abc9_ops -mark_scc -prep_delays -prep_xaiger" + std::string(dff_mode ? " -dff" : ""), "(option for -dff)");
run("abc9_ops -mark_scc -prep_delays -prep_xaiger" + std::string(dff_mode ? " -dff" : ""));
if (help_mode)
run("abc9_ops -prep_lut <maxlut>", "(skip if -lut or -luts)");
else if (!lut_mode)
run(stringf("abc9_ops -prep_lut %d", maxlut));
if (help_mode)
run("abc9_ops -prep_box [-dff]", "(skip if -box)");
else if (box_file.empty())
run(stringf("abc9_ops -prep_box %s", dff_mode ? "-dff" : ""));
run("abc9_ops -prep_box", "(skip if -box)");
else if (box_file.empty()) {
run("abc9_ops -prep_box");
}
run("select -set abc9_holes A:abc9_holes");
run("flatten -wb @abc9_holes");
run("techmap @abc9_holes");
if (dff_mode || help_mode)
run("abc9_ops -prep_dff", "(only if -dff)");
run("opt -purge @abc9_holes");
run("aigmap");
run("wbflip @abc9_holes");
@ -304,10 +352,10 @@ struct Abc9Pass : public ScriptPass
run("foreach module in selection");
run(" abc9_ops -write_lut <abc-temp-dir>/input.lut", "(skip if '-lut' or '-luts')");
run(" abc9_ops -write_box <abc-temp-dir>/input.box", "(skip if '-box')");
run(" write_xaiger -map <abc-temp-dir>/input.sym <abc-temp-dir>/input.xaig");
run(" abc9_exe [options] -cwd <abc-temp-dir> [-lut <abc-temp-dir>/input.lut] -box <abc-temp-dir>/input.box");
run(" write_xaiger -map <abc-temp-dir>/input.sym [-dff] <abc-temp-dir>/input.xaig");
run(" abc9_exe [options] -cwd <abc-temp-dir> -lut [<abc-temp-dir>/input.lut] -box [<abc-temp-dir>/input.box]");
run(" read_aiger -xaiger -wideports -module_name <module-name>$abc9 -map <abc-temp-dir>/input.sym <abc-temp-dir>/output.aig");
run(" abc9_ops -reintegrate");
run(" abc9_ops -reintegrate [-dff]");
}
else {
auto selected_modules = active_design->selected_modules();
@ -335,7 +383,7 @@ struct Abc9Pass : public ScriptPass
run_nocheck(stringf("abc9_ops -write_lut %s/input.lut", tempdir_name.c_str()));
if (box_file.empty())
run_nocheck(stringf("abc9_ops -write_box %s/input.box", tempdir_name.c_str()));
run_nocheck(stringf("write_xaiger -map %s/input.sym %s/input.xaig", tempdir_name.c_str(), tempdir_name.c_str()));
run_nocheck(stringf("write_xaiger -map %s/input.sym %s %s/input.xaig", tempdir_name.c_str(), dff_mode ? "-dff" : "", tempdir_name.c_str()));
int num_outputs = active_design->scratchpad_get_int("write_xaiger.num_outputs");
@ -356,7 +404,7 @@ struct Abc9Pass : public ScriptPass
abc9_exe_cmd += stringf(" -box %s", box_file.c_str());
run_nocheck(abc9_exe_cmd);
run_nocheck(stringf("read_aiger -xaiger -wideports -module_name %s$abc9 -map %s/input.sym %s/output.aig", log_id(mod), tempdir_name.c_str(), tempdir_name.c_str()));
run_nocheck("abc9_ops -reintegrate");
run_nocheck(stringf("abc9_ops -reintegrate %s", dff_mode ? "-dff" : ""));
}
else
log("Don't call ABC as there is nothing to map.\n");
@ -373,6 +421,19 @@ struct Abc9Pass : public ScriptPass
active_design->selection_stack.pop_back();
}
}
if (check_label("post")) {
if (dff_mode || help_mode) {
run("techmap -wb -map %$abc9_unmap", "(only if -dff)"); // techmap user design from submod back to original cell
// ($_DFF_[NP]_ already shorted by -reintegrate)
if (!help_mode) {
// TODO: Need a way to delete saved designs?
auto it = saved_designs.find("$abc9_unmap");
delete it->second;
saved_designs.erase(it);
}
}
}
}
} Abc9Pass;