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authorClifford Wolf <clifford@clifford.at>2014-07-17 08:58:51 +0200
committerClifford Wolf <clifford@clifford.at>2014-07-17 08:58:51 +0200
commit64a6906cc448b90777591006786e8bb3a85d2c49 (patch)
tree1492899bff5a8bb2899239f5440216b6bb7fa1a4 /passes
parentb171a4c1bce1146c890f8238a723a277c8dc2efb (diff)
Added support for "blackbox" attribute to flatten/techmap
Diffstat (limited to 'passes')
-rw-r--r--passes/techmap/techmap.cc5
1 files changed, 4 insertions, 1 deletions
diff --git a/passes/techmap/techmap.cc b/passes/techmap/techmap.cc
index 4c5a0feb..cb36c9e1 100644
--- a/passes/techmap/techmap.cc
+++ b/passes/techmap/techmap.cc
@@ -243,6 +243,9 @@ struct TechmapWorker
RTLIL::Module *tpl = map->modules[tpl_name];
std::map<RTLIL::IdString, RTLIL::Const> parameters = cell->parameters;
+ if (tpl->get_bool_attribute("\\blackbox"))
+ continue;
+
if (!flatten_mode)
{
if (tpl->get_bool_attribute("\\techmap_simplemap")) {
@@ -686,7 +689,7 @@ struct FlattenPass : public Pass {
if (top_mod != NULL) {
std::map<RTLIL::IdString, RTLIL::Module*> new_modules;
for (auto &mod_it : design->modules)
- if (mod_it.second == top_mod) {
+ if (mod_it.second == top_mod || mod_it.second->get_bool_attribute("\\blackbox")) {
new_modules[mod_it.first] = mod_it.second;
} else {
log("Deleting now unused module %s.\n", RTLIL::id2cstr(mod_it.first));