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Window rewriting #449

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Merged
hriener merged 11 commits into from
Apr 23, 2021
Merged

Window rewriting #449

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d54aa25
improved performance of window-rewriting.
hriener Apr 19, 2021
b7e840f
consider time of events.
hriener Apr 23, 2021
3d20f7d
minor cleanup.
hriener Apr 23, 2021
520c2dd
if a cyclic substitution is detected, avoid substitution (for all out…
hriener Apr 23, 2021
e1649eb
takeout node if decremented fanout_size reaches 0.
hriener Apr 23, 2021
f01228e
count number of restrashings.
hriener Apr 23, 2021
72c889b
copy num_restrashes.
hriener Apr 23, 2021
6d24e09
Merge branch 'master' into window_rewriting
hriener Apr 23, 2021
52c74e8
window_rewriting.
hriener Apr 23, 2021
cbbe628
resize levels after each iteration.
hriener Apr 23, 2021
343ccfb
window_rewriting.
hriener Apr 23, 2021
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if a cyclic substitution is detected, avoid substitution (for all out… 
…puts).
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@hriener
hriener committed Apr 23, 2021
commit 520c2dd679115675d50a0be104809fd5257f72a9
9 changes: 7 additions & 2 deletions include/mockturtle/algorithms/window_rewriting.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -269,10 +269,15 @@ class window_rewriting_impl
if ( ps.filter_cyclic_substitutions && is_contained_in_tfi( ntk, ntk.get_node( _new ), ntk.get_node( _old ) ) )
{
std::cout << "undo resubstitution " << ntk.get_node( _old ) << std::endl;
if ( ntk.fanout_size( ntk.get_node( _new ) ) == 0u )
substitutions.emplace_back( std::make_pair( ntk.get_node( _old ), ntk.is_complemented( _old ) ? !_new : _new ) );
for ( auto it = std::rbegin( substitutions ); it != std::rend( substitutions ); ++it )
{
ntk.take_out_node( ntk.get_node( _new ) );
if ( ntk.fanout_size( ntk.get_node( it->second ) ) == 0u )
{
ntk.take_out_node( ntk.get_node( it->second ) );
}
}
substitutions.clear();
return false;
}

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