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Add fanout limit

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This commit is contained in:
Akash Levy 2024-10-25 19:55:57 -07:00
parent dd17e4c133
commit 751f463994
3 changed files with 18 additions and 4 deletions
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2
passes/opt/muxpack.cc
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@ -370,7 +370,7 @@ struct MuxpackPass : public Pass {
extra_args(args, argidx, design);
if (splitfanout)
Pass::call(design, "splitfanout t:$mux t:$pmux");
Pass::call(design, "splitfanout -limit 512 t:$mux t:$pmux");
int mux_count = 0;
int pmux_count = 0;

2
passes/opt/opt_balance_tree.cc
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@ -330,7 +330,7 @@ struct OptBalanceTreePass : public Pass {
// Run splitfanout pass first
if (splitfanout)
Pass::call(design, "splitfanout t:$and t:$or t:$xor t:$xnor t:$add t:$mul");
Pass::call(design, "splitfanout -limit 512 t:$and t:$or t:$xor t:$xnor t:$add t:$mul");
// Count of all cells that were packed
dict<IdString, int> cell_count;