diff options
| -rw-r--r-- | kernel/rtlil.cc | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/kernel/rtlil.cc b/kernel/rtlil.cc index ca448057..ee0f44a3 100644 --- a/kernel/rtlil.cc +++ b/kernel/rtlil.cc @@ -2573,8 +2573,18 @@ void RTLIL::SigSpec::sort() void RTLIL::SigSpec::sort_and_unify() { + unpack(); cover("kernel.rtlil.sigspec.sort_and_unify"); - *this = this->to_sigbit_set(); + + // A copy of the bits vector is used to prevent duplicating the logic from + // SigSpec::SigSpec(std::vector<SigBit>). This incurrs an extra copy but + // that isn't showing up as significant in profiles. + std::vector<SigBit> unique_bits = bits_; + std::sort(unique_bits.begin(), unique_bits.end()); + auto last = std::unique(unique_bits.begin(), unique_bits.end()); + unique_bits.erase(last, unique_bits.end()); + + *this = unique_bits; } void RTLIL::SigSpec::replace(const RTLIL::SigSpec &pattern, const RTLIL::SigSpec &with) |