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Fix an issue that can cause the inprocessing step to fail if constant gates are introduced. #547

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Fix an issue that can cause the inprocessing step to fail if constant gates are introduced. #547

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7 changes: 5 additions & 2 deletions src/opt/eslim/eslimCirMan.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -563,8 +563,11 @@ namespace eSLIM {
int id = Gia_ManAppendCo( pNew, fanin0 );
node_ids[i] = id;
}

return pNew;
// Gates may become unreachable due to constant gates,
// potentially causing the inprocessing step to fail.
Gia_Man_t * pStrash = Gia_ManRehash( pNew, 0 );
Gia_ManStop( pNew );
return pStrash;
}

Abc_Ntk_t* eSLIMCirMan::eSLIMCirManToNtk() {
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