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Replace use of SigSpec::operator[] const in sigtools with iterators

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This commit is contained in:
Robert O'Callahan 2025-10-09 01:54:08 +00:00
parent 8875efcebd
commit ff86130cf9
2 changed files with 21 additions and 8 deletions
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10
kernel/rtlil.h
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@ -1236,6 +1236,16 @@ struct RTLIL::SigSpecConstIterator
inline bool operator==(const RTLIL::SigSpecConstIterator &other) const { return bit_index == other.bit_index; }
inline RTLIL::SigSpecConstIterator &operator++();
inline RTLIL::SigSpecConstIterator &operator--();
inline RTLIL::SigSpecConstIterator operator++(int) {
RTLIL::SigSpecConstIterator result(*this);
++(*this);
return result;
}
inline RTLIL::SigSpecConstIterator operator--(int) {
RTLIL::SigSpecConstIterator result(*this);
--(*this);
return result;
}
private:
// Must be called when sig_p is packed and `bit_index` is in range. Finds the chunk containing `bit_index`

19
kernel/sigtools.h
View file

@ -72,8 +72,9 @@ struct SigPool
void expand(const RTLIL::SigSpec &from, const RTLIL::SigSpec &to)
{
log_assert(GetSize(from) == GetSize(to));
for (int i = 0; i < GetSize(from); i++) {
bitDef_t bit_from(from[i]), bit_to(to[i]);
RTLIL::SigSpecConstIterator to_it = to.begin();
for (auto &bit : from) {
bitDef_t bit_from(bit), bit_to(*to_it++);
if (bit_from.first != NULL && bit_to.first != NULL && bits.count(bit_from) > 0)
bits.insert(bit_to);
}
@ -321,10 +322,11 @@ struct SigMap final : public SigMapView
{
log_assert(GetSize(from) == GetSize(to));
for (int i = 0; i < GetSize(from); i++)
RTLIL::SigSpecConstIterator to_it = to.begin();
for (auto &bit : from)
{
int bfi = database.lookup(from[i]);
int bti = database.lookup(to[i]);
int bfi = database.lookup(bit);
int bti = database.lookup(*to_it++);
const RTLIL::SigBit &bf = database[bfi];
const RTLIL::SigBit &bt = database[bti];
@ -415,10 +417,11 @@ struct SigValMap final : public SigMapView
{
log_assert(GetSize(from) == GetSize(to));
for (int i = 0; i < GetSize(from); i++)
RTLIL::SigSpecConstIterator to_it = to.begin();
for (auto &bit : from)
{
int bfi = database.lookup(from[i]);
int bti = database.lookup(to[i]);
int bfi = database.lookup(bit);
int bti = database.lookup(*to_it++);
if (bfi == bti) {
continue;
}