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Extending "lutexact" to get function from the current network.

This commit is contained in:
Alan Mishchenko 2026-02-01 19:47:14 -08:00
parent 5899aa5df1
commit 367b407fba
1 changed files with 25 additions and 5 deletions
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30
src/base/abci/abc.c
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@ -10940,15 +10940,35 @@ int Abc_CommandLutExact( Abc_Frame_t * pAbc, int argc, char ** argv )
Abc_Print( 0, "If LUT mapping is not enabled (switch \"-r\"), permutation has not effect.\n" );
if ( argc == globalUtilOptind + 1 )
pPars->pTtStr = argv[globalUtilOptind];
else if ( argc == globalUtilOptind && Abc_FrameReadNtk(pAbc) )
else if ( argc == globalUtilOptind && Abc_FrameReadNtk(pAbc) )
{
pPars->pTtStr = Abc_NtkReadTruth( Abc_FrameReadNtk(pAbc) );
if ( pPars->pTtStr )
pPars->nVars = Abc_NtkCiNum(Abc_FrameReadNtk(pAbc));
Abc_Ntk_t * pNtk = Abc_FrameReadNtk(pAbc);
if ( Abc_NtkCiNum(pNtk) > 30 )
{
Abc_Print( -1, "Cannot derive truth table from network: too many inputs (%d > 30).\n", Abc_NtkCiNum(pNtk) );
Abc_Print( -1, "Please provide truth table on the command line or use a smaller network.\n" );
return 1;
}
if ( Abc_NtkCoNum(pNtk) != 1 )
{
Abc_Print( -1, "Cannot derive truth table from network: network must have exactly one output (has %d).\n", Abc_NtkCoNum(pNtk) );
return 1;
}
pPars->pTtStr = Abc_NtkReadTruth( pNtk );
if ( pPars->pTtStr )
{
pPars->nVars = Abc_NtkCiNum(pNtk);
Abc_Print( 0, "Derived %d-input truth table from current network.\n", pPars->nVars );
}
else
{
Abc_Print( -1, "Failed to derive truth table from current network.\n" );
return 1;
}
}
if ( pPars->pTtStr == NULL && pPars->pSymStr == NULL && pPars->nRandFuncs == 0 )
{
Abc_Print( -1, "Truth table should be given on the command line.\n" );
Abc_Print( -1, "Truth table should be given on the command line, or derived from current single-output network.\n" );
return 1;
}
if ( pPars->nVars == 0 && pPars->pTtStr )