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Fix wreduce speed more

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This commit is contained in:
Akash Levy 2025-09-27 17:59:25 -07:00
parent f7dbfcb278
commit ae2ed5e82a
2 changed files with 14 additions and 0 deletions
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8
passes/opt/wreduce.cc
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@ -78,6 +78,8 @@ struct WreduceWorker
for (int i = GetSize(sig_y)-1; i >= 0; i--)
{
auto info = mi.query(sig_y[i]);
if (info == nullptr)
return;
if (!info->is_output && GetSize(info->ports) <= 1 && !keep_bits.count(mi.sigmap(sig_y[i]))) {
bits_removed.push_back(State::Sx);
continue;
@ -408,6 +410,8 @@ struct WreduceWorker
break;
auto info = mi.query(bit);
if (info == nullptr)
return;
if (info->is_output || GetSize(info->ports) > 1)
break;
@ -566,6 +570,10 @@ struct WreduceWorker
for (int i = GetSize(w)-1; i >= 0; i--) {
SigBit bit(w, i);
auto info = mi.query(bit);
if (info == nullptr) {
unused_top_bits = 0;
break;
}
if (info && (info->is_input || info->is_output || GetSize(info->ports) > 0))
break;
unused_top_bits++;