From f3326a642178b66ba98b6371245077ff93ffe215 Mon Sep 17 00:00:00 2001 From: Clifford Wolf Date: Sun, 17 Aug 2014 02:16:56 +0200 Subject: [PATCH] Improved sig.remove2() performance --- kernel/rtlil.cc | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/kernel/rtlil.cc b/kernel/rtlil.cc index 60c514d19..e4bf4f9f3 100644 --- a/kernel/rtlil.cc +++ b/kernel/rtlil.cc @@ -2182,14 +2182,23 @@ void RTLIL::SigSpec::remove2(const std::set &pattern, RTLIL::SigS std::vector new_bits, new_other_bits; + new_bits.resize(SIZE(bits_)); + if (other != NULL) + new_other_bits.resize(SIZE(bits_)); + + int k = 0; for (int i = 0; i < SIZE(bits_); i++) { if (bits_[i].wire != NULL && pattern.count(bits_[i])) continue; if (other != NULL) - new_other_bits.push_back(other->bits_[i]); - new_bits.push_back(bits_[i]); + new_other_bits[k] = other->bits_[i]; + new_bits[k++] = bits_[i]; } + new_bits.resize(k); + if (other != NULL) + new_other_bits.resize(k); + bits_.swap(new_bits); width_ = SIZE(bits_); -- 2.30.2