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Ignore DW in opt_hier/opt_boundary

This commit is contained in:
Akash Levy 2026-05-04 12:52:47 -07:00
parent ebf269bdf0
commit b9fa4f85ba
2 changed files with 15 additions and 3 deletions
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15
passes/opt/opt_hier.cc
View File

@ -24,6 +24,11 @@
USING_YOSYS_NAMESPACE
PRIVATE_NAMESPACE_BEGIN
static bool is_dw_module(Module *module)
{
return RTLIL::unescape_id(module->name).compare(0, 2, "DW") == 0;
}
// Used to propagate information out of a module
struct ModuleIndex {
Module *module;
@ -439,7 +444,7 @@ struct OptHierPass : Pass {
dict<IdString, UsageData> usage_datas;
for (auto module : d->selected_modules(RTLIL::SELECT_WHOLE_ONLY, RTLIL::SB_UNBOXED_CMDERR)) {
if (module->get_bool_attribute(ID::top))
if (module->get_bool_attribute(ID::top) || is_dw_module(module))
continue;
log_debug("Starting usage data for %s\n", log_id(module));
@ -457,6 +462,11 @@ struct OptHierPass : Pass {
bool did_something = false;
for (auto module : d->selected_modules(RTLIL::SELECT_WHOLE_ONLY, RTLIL::SB_UNBOXED_CMDERR)) {
if (is_dw_module(module)) {
log_debug("Skipping DW module %s\n", log_id(module));
continue;
}
ModuleIndex &parent_index = indices.at(module->name);
if (usage_datas.count(module->name)) {
@ -465,7 +475,8 @@ struct OptHierPass : Pass {
}
for (auto cell : module->cells()) {
if (indices.count(cell->type)) {
Module *child = d->module(cell->type);
if (child != nullptr && !is_dw_module(child) && indices.count(cell->type)) {
log_debug("Applying changes to instance %s of %s in %s\n", log_id(cell), log_id(cell->type), log_id(module));
did_something |= indices.at(cell->type).apply_changes(parent_index, cell);
}

3
passes/silimate/opt_boundary.cc
View File

@ -184,7 +184,8 @@ struct BoundaryConeWorker {
static bool protected_module(Module *module)
{
return module->get_blackbox_attribute() ||
return RTLIL::unescape_id(module->name).compare(0, 2, "DW") == 0 ||
module->get_blackbox_attribute() ||
module->get_bool_attribute(ID::keep) ||
module->get_bool_attribute(ID::keep_hierarchy);
}