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abc9: cleanup

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This commit is contained in:
Eddie Hung 2020-01-11 08:42:58 -08:00
parent 4e396ee7a3
commit 784fec93c9
3 changed files with 38 additions and 45 deletions
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48
passes/techmap/abc9_ops.cc
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@ -40,7 +40,7 @@ void break_scc(RTLIL::Module *module)
// its output ports into a new PO, and drive its previous
// sinks with a new PI
pool<RTLIL::Const> ids_seen;
for (auto cell : module->selected_cells()) {
for (auto cell : module->cells()) {
auto it = cell->attributes.find(ID(abc9_scc_id));
if (it == cell->attributes.end())
continue;
@ -116,7 +116,7 @@ void prep_dff(RTLIL::Module *module)
typedef SigSpec clkdomain_t;
dict<clkdomain_t, int> clk_to_mergeability;
for (auto cell : module->selected_cells()) {
for (auto cell : module->cells()) {
if (cell->type != "$__ABC9_FF_")
continue;
@ -179,11 +179,8 @@ void prep_dff(RTLIL::Module *module)
++it;
}
for (auto &conn : holes_module->connections_) {
auto it = replace.find(conn);
if (it != replace.end())
conn = it->second;
}
for (auto &conn : holes_module->connections_)
conn = replace.at(conn, conn);
}
}
@ -198,7 +195,7 @@ void prep_holes(RTLIL::Module *module, bool dff)
TopoSort<IdString, RTLIL::sort_by_id_str> toposort;
bool abc9_box_seen = false;
for (auto cell : module->selected_cells()) {
for (auto cell : module->cells()) {
if (cell->type == "$__ABC9_FF_")
continue;
@ -236,21 +233,23 @@ void prep_holes(RTLIL::Module *module, bool dff)
for (auto user_cell : it.second)
toposort.edge(driver_cell, user_cell);
#if 0
toposort.analyze_loops = true;
#endif
if (ys_debug(1))
toposort.analyze_loops = true;
bool no_loops YS_ATTRIBUTE(unused) = toposort.sort();
#if 0
unsigned i = 0;
for (auto &it : toposort.loops) {
log(" loop %d\n", i++);
for (auto cell_name : it) {
auto cell = module->cell(cell_name);
log_assert(cell);
log("\t%s (%s @ %s)\n", log_id(cell), log_id(cell->type), cell->get_src_attribute().c_str());
if (ys_debug(1)) {
unsigned i = 0;
for (auto &it : toposort.loops) {
log(" loop %d\n", i++);
for (auto cell_name : it) {
auto cell = module->cell(cell_name);
log_assert(cell);
log("\t%s (%s @ %s)\n", log_id(cell), log_id(cell->type), cell->get_src_attribute().c_str());
}
}
}
#endif
log_assert(no_loops);
vector<Cell*> box_list;
@ -845,6 +844,12 @@ struct Abc9OpsPass : public Pass {
}
extra_args(args, argidx, design);
if (!(break_scc_mode || unbreak_scc_mode || prep_dff_mode || reintegrate_mode))
log_cmd_error("At least one of -{,un}break_scc, -prep_{dff,holes}, -reintegrate must be specified.\n");
if (dff_mode && !prep_holes_mode)
log_cmd_error("'-dff' option is only relevant for -prep_holes.\n");
for (auto mod : design->selected_modules()) {
if (mod->get_bool_attribute("\\abc9_holes"))
continue;
@ -854,6 +859,9 @@ struct Abc9OpsPass : public Pass {
continue;
}
if (!design->selected_whole_module(mod))
log_error("Can't handle partially selected module %s!\n", log_id(mod));
if (break_scc_mode)
break_scc(mod);
if (unbreak_scc_mode)