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Fix space leak in SatGen::importSigSpecWorker() by avoiding log_id().

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Calling `log_id()` leaks a copy of the ID into `log_id_cache` until the
end of the pass, which causes exorbitant memory usage.

See issue #5210.
This commit is contained in:
Robert O'Callahan 2025-07-08 23:53:38 +00:00
parent 478b6a2b3f
commit 743df9f0f9
1 changed files with 3 additions and 1 deletions
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4
kernel/satgen.h
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@ -101,7 +101,9 @@ struct SatGen
else
vec.push_back(bit == (undef_mode ? RTLIL::State::Sx : RTLIL::State::S1) ? ez->CONST_TRUE : ez->CONST_FALSE);
} else {
std::string name = pf + (bit.wire->width == 1 ? stringf("%s", log_id(bit.wire)) : stringf("%s [%d]", log_id(bit.wire->name), bit.offset));
std::string wire_name = RTLIL::unescape_id(bit.wire->name);
std::string name = pf +
(bit.wire->width == 1 ? wire_name : stringf("%s [%d]", wire_name.c_str(), bit.offset));
vec.push_back(ez->frozen_literal(name));
imported_signals[pf][bit] = vec.back();
}