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Parallelize opt_merge.

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I'm not sure why but this is actually faster than existing `opt_merge` even with
YOSYS_MAX_THREADS=1, for the jpeg synthesis test. 16.0s before, 15.5s after for
end-to-end synthesis.
This commit is contained in:
Robert O'Callahan 2025-11-25 01:35:00 +00:00
parent 35321cd292
commit 8da919587d
3 changed files with 301 additions and 114 deletions
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2
kernel/rtlil.h
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@ -2140,6 +2140,8 @@ public:
int wires_size() const { return wires_.size(); }
RTLIL::Wire* wire_at(int index) const { return wires_.element(index)->second; }
RTLIL::ObjRange<RTLIL::Cell*> cells() { return RTLIL::ObjRange<RTLIL::Cell*>(&cells_, &refcount_cells_); }
int cells_size() const { return cells_.size(); }
RTLIL::Cell* cell_at(int index) const { return cells_.element(index)->second; }
void add(RTLIL::Binding *binding);