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twine: fix replayability, reduce TwineSearch usage

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This commit is contained in:
Emil J. Tywoniak 2026-06-22 17:53:19 +02:00
parent e9eb3889b7
commit 7c73fd62e4
41 changed files with 273 additions and 272 deletions
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7
kernel/ff.cc
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@ -39,12 +39,6 @@ void manufacture_info(InputType flop, OutputType& info, FfInitVals *initvals) {
info.sig_q = cell->getPort(TW::Q);
info.width = GetSize(info.sig_q);
info.attributes = cell->attributes;
// Carry src across construction → emit() as an owning Twine
// reference. Retaining a slot on the source pool keeps it
// alive even if the source cell gets removed between
// manufacture_info() and emit(); emit() then transfers the
// id verbatim into the new cell — no flatten/re-intern, no
// pipe-leaf risk for cells whose src is a Concat.
if (cell->src_id() != Twine::Null && cell->module && cell->module->design)
info.src_twine = cell->src_id();
if (initvals)
@ -762,7 +756,6 @@ Cell *FfData::emit() {
}
}
// src is carried in info.src_twine (an OwnedTwine retaining the
// source slot). Transfer the id verbatim to the new cell — same
// pool, no flatten. The OwnedTwine still holds its own ref until
// FfData is destroyed; set_src_id retains on the cell's behalf.
cell->attributes = attributes;