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Bugfix in splitcells pass

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Signed-off-by: Claire Xenia Wolf <claire@clairexen.net>
This commit is contained in:
Claire Xenia Wolf 2022-12-06 16:00:48 +01:00
parent e151e44caa
commit 2895a66784
1 changed files with 13 additions and 5 deletions
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18
passes/cmds/splitcells.cc
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@ -76,9 +76,14 @@ struct SplitcellsWorker
std::vector<int> slices;
slices.push_back(0);
for (int i = 1; i < GetSize(outsig); i++) {
auto &last_users = bit_users_db.at(outsig[slices.back()]);
auto &this_users = bit_users_db.at(outsig[i]);
int width = GetSize(outsig);
width = std::min(width, GetSize(cell->getPort(ID::A)));
if (cell->hasPort(ID::B))
width = std::min(width, GetSize(cell->getPort(ID::B)));
for (int i = 1; i < width; i++) {
auto &last_users = bit_users_db[outsig[slices.back()]];
auto &this_users = bit_users_db[outsig[i]];
if (last_users != this_users) slices.push_back(i);
}
if (GetSize(slices) <= 1) return 0;
@ -98,8 +103,11 @@ struct SplitcellsWorker
auto slice_signal = [&](SigSpec old_sig) -> SigSpec {
SigSpec new_sig;
for (int i = 0; i < GetSize(old_sig); i += GetSize(outsig))
new_sig.append(old_sig.extract(i+slice_lsb, slice_msb-slice_lsb+1));
for (int i = 0; i < GetSize(old_sig); i += GetSize(outsig)) {
int offset = i+slice_lsb;
int length = std::min(GetSize(old_sig)-offset, slice_msb-slice_lsb+1);
new_sig.append(old_sig.extract(offset, length));
}
return new_sig;
};