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Merge pull request #353 from azonenberg/master 

greenpak4_counters: Use more human-readable names for inferred counters
This commit is contained in:
Clifford Wolf 2017-06-27 19:18:32 +02:00 committed by GitHub
parent 155a80dfb7 cbdddc3af9
commit 5b95901a1e
1 changed files with 21 additions and 3 deletions
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24
techlibs/greenpak4/greenpak4_counters.cc
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@ -280,7 +280,8 @@ void greenpak4_counters_worker(
ModIndex& index,
Cell *cell,
unsigned int& total_counters,
pool<Cell*>& cells_to_remove)
pool<Cell*>& cells_to_remove,
pool<pair<Cell*, string>>& cells_to_rename)
{
SigMap& sigmap = index.sigmap;
@ -376,6 +377,9 @@ void greenpak4_counters_worker(
if(extract.width > 8)
celltype = "\\GP_COUNT14";
//Get new cell name
string countname = string("$auto$GP_COUNTx$") + log_id(extract.rwire->name.str());
//Log it
total_counters ++;
string reset_type = "non-resettable";
@ -384,9 +388,10 @@ void greenpak4_counters_worker(
//TODO: support other kind of reset
reset_type = "async resettable";
}
log(" Found %d-bit %s down counter (counting from %d) for register %s declared at %s\n",
log(" Found %d-bit %s down counter %s (counting from %d) for register %s declared at %s\n",
extract.width,
reset_type.c_str(),
countname.c_str(),
extract.count_value,
log_id(extract.rwire->name),
count_reg_src.c_str());
@ -445,6 +450,9 @@ void greenpak4_counters_worker(
cells_to_remove.insert(extract.count_mux);
cells_to_remove.insert(extract.count_reg);
cells_to_remove.insert(extract.underflow_inv);
//Finally, rename the cell
cells_to_rename.insert(pair<Cell*, string>(cell, countname));
}
struct Greenpak4CountersPass : public Pass {
@ -478,13 +486,23 @@ struct Greenpak4CountersPass : public Pass {
for (auto module : design->selected_modules())
{
pool<Cell*> cells_to_remove;
pool<pair<Cell*, string>> cells_to_rename;
ModIndex index(module);
for (auto cell : module->selected_cells())
greenpak4_counters_worker(index, cell, total_counters, cells_to_remove);
greenpak4_counters_worker(index, cell, total_counters, cells_to_remove, cells_to_rename);
for(auto cell : cells_to_remove)
{
//log("Removing cell %s\n", log_id(cell->name));
module->remove(cell);
}
for(auto cpair : cells_to_rename)
{
//log("Renaming cell %s to %s\n", log_id(cpair.first->name), cpair.second.c_str());
module->rename(cpair.first, cpair.second);
}
}
if(total_counters)