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Diffstat (limited to 'abc70930/src/opt/cut/cutCut.c')
| -rw-r--r-- | abc70930/src/opt/cut/cutCut.c | 359 |
1 files changed, 359 insertions, 0 deletions
diff --git a/abc70930/src/opt/cut/cutCut.c b/abc70930/src/opt/cut/cutCut.c new file mode 100644 index 00000000..94147278 --- /dev/null +++ b/abc70930/src/opt/cut/cutCut.c @@ -0,0 +1,359 @@ +/**CFile**************************************************************** + + FileName [cutNode.c] + + SystemName [ABC: Logic synthesis and verification system.] + + PackageName [K-feasible cut computation package.] + + Synopsis [Procedures to compute cuts for a node.] + + Author [Alan Mishchenko] + + Affiliation [UC Berkeley] + + Date [Ver. 1.0. Started - June 20, 2005.] + + Revision [$Id: cutNode.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $] + +***********************************************************************/ + +#include "cutInt.h" + +//////////////////////////////////////////////////////////////////////// +/// DECLARATIONS /// +//////////////////////////////////////////////////////////////////////// + +//////////////////////////////////////////////////////////////////////// +/// FUNCTION DEFINITIONS /// +//////////////////////////////////////////////////////////////////////// + +/**Function************************************************************* + + Synopsis [Allocates the cut.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +Cut_Cut_t * Cut_CutAlloc( Cut_Man_t * p ) +{ + Cut_Cut_t * pCut; + // cut allocation + pCut = (Cut_Cut_t *)Extra_MmFixedEntryFetch( p->pMmCuts ); + memset( pCut, 0, sizeof(Cut_Cut_t) ); + pCut->nVarsMax = p->pParams->nVarsMax; + pCut->fSimul = p->fSimul; + // statistics + p->nCutsAlloc++; + p->nCutsCur++; + if ( p->nCutsPeak < p->nCutsAlloc - p->nCutsDealloc ) + p->nCutsPeak = p->nCutsAlloc - p->nCutsDealloc; + return pCut; +} + +/**Function************************************************************* + + Synopsis [Recybles the cut.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +void Cut_CutRecycle( Cut_Man_t * p, Cut_Cut_t * pCut ) +{ + p->nCutsDealloc++; + p->nCutsCur--; + if ( pCut->nLeaves == 1 ) + p->nCutsTriv--; + Extra_MmFixedEntryRecycle( p->pMmCuts, (char *)pCut ); +} + +/**Function************************************************************* + + Synopsis [Compares two cuts.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +int Cut_CutCompare( Cut_Cut_t * pCut1, Cut_Cut_t * pCut2 ) +{ + int i; + if ( pCut1->nLeaves < pCut2->nLeaves ) + return -1; + if ( pCut1->nLeaves > pCut2->nLeaves ) + return 1; + for ( i = 0; i < (int)pCut1->nLeaves; i++ ) + { + if ( pCut1->pLeaves[i] < pCut2->pLeaves[i] ) + return -1; + if ( pCut1->pLeaves[i] > pCut2->pLeaves[i] ) + return 1; + } + return 0; +} + +/**Function************************************************************* + + Synopsis [Duplicates the list.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +Cut_Cut_t * Cut_CutDupList( Cut_Man_t * p, Cut_Cut_t * pList ) +{ + Cut_Cut_t * pHead = NULL, ** ppTail = &pHead; + Cut_Cut_t * pTemp, * pCopy; + if ( pList == NULL ) + return NULL; + Cut_ListForEachCut( pList, pTemp ) + { + pCopy = (Cut_Cut_t *)Extra_MmFixedEntryFetch( p->pMmCuts ); + memcpy( pCopy, pTemp, p->EntrySize ); + *ppTail = pCopy; + ppTail = &pCopy->pNext; + } + *ppTail = NULL; + return pHead; +} + +/**Function************************************************************* + + Synopsis [Recycles the list.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +void Cut_CutRecycleList( Cut_Man_t * p, Cut_Cut_t * pList ) +{ + Cut_Cut_t * pCut, * pCut2; + Cut_ListForEachCutSafe( pList, pCut, pCut2 ) + Extra_MmFixedEntryRecycle( p->pMmCuts, (char *)pCut ); +} + +/**Function************************************************************* + + Synopsis [Counts the number of cuts in the list.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +int Cut_CutCountList( Cut_Cut_t * pList ) +{ + int Counter = 0; + Cut_ListForEachCut( pList, pList ) + Counter++; + return Counter; +} + +/**Function************************************************************* + + Synopsis [Merges two NULL-terminated linked lists.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +Cut_Cut_t * Cut_CutMergeLists( Cut_Cut_t * pList1, Cut_Cut_t * pList2 ) +{ + Cut_Cut_t * pList = NULL, ** ppTail = &pList; + Cut_Cut_t * pCut; + while ( pList1 && pList2 ) + { + if ( Cut_CutCompare(pList1, pList2) < 0 ) + { + pCut = pList1; + pList1 = pList1->pNext; + } + else + { + pCut = pList2; + pList2 = pList2->pNext; + } + *ppTail = pCut; + ppTail = &pCut->pNext; + } + *ppTail = pList1? pList1: pList2; + return pList; +} + +/**Function************************************************************* + + Synopsis [Sets the number of the cuts in the list.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +void Cut_CutNumberList( Cut_Cut_t * pList ) +{ + Cut_Cut_t * pCut; + int i = 0; + Cut_ListForEachCut( pList, pCut ) + pCut->Num0 = i++; +} + +/**Function************************************************************* + + Synopsis [Creates the trivial cut.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +Cut_Cut_t * Cut_CutCreateTriv( Cut_Man_t * p, int Node ) +{ + Cut_Cut_t * pCut; + if ( p->pParams->fSeq ) + Node <<= CUT_SHIFT; + pCut = Cut_CutAlloc( p ); + pCut->nLeaves = 1; + pCut->pLeaves[0] = Node; + pCut->uSign = Cut_NodeSign( Node ); + if ( p->pParams->fTruth ) + { +/* + if ( pCut->nVarsMax == 4 ) + Cut_CutWriteTruth( pCut, p->uTruthVars[0] ); + else + Extra_BitCopy( pCut->nLeaves, p->uTruths[0], (uint8*)Cut_CutReadTruth(pCut) ); +*/ + unsigned * pTruth = Cut_CutReadTruth(pCut); + int i; + for ( i = 0; i < p->nTruthWords; i++ ) + pTruth[i] = 0xAAAAAAAA; + } + p->nCutsTriv++; + return pCut; +} + + +/**Function************************************************************* + + Synopsis [Print the cut.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +void Cut_CutPrint( Cut_Cut_t * pCut, int fSeq ) +{ + int i; + assert( pCut->nLeaves > 0 ); + printf( "%d : {", pCut->nLeaves ); + for ( i = 0; i < (int)pCut->nLeaves; i++ ) + { + if ( fSeq ) + { + printf( " %d", pCut->pLeaves[i] >> CUT_SHIFT ); + if ( pCut->pLeaves[i] & CUT_MASK ) + printf( "(%d)", pCut->pLeaves[i] & CUT_MASK ); + } + else + printf( " %d", pCut->pLeaves[i] ); + } + printf( " }" ); +// printf( "\nSign = " ); +// Extra_PrintBinary( stdout, &pCut->uSign, 32 ); +} + +/**Function************************************************************* + + Synopsis [Print the cut.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +void Cut_CutPrintList( Cut_Cut_t * pList, int fSeq ) +{ + Cut_Cut_t * pCut; + for ( pCut = pList; pCut; pCut = pCut->pNext ) + Cut_CutPrint( pCut, fSeq ), printf( "\n" ); +} + +/**Function************************************************************* + + Synopsis [Consider dropping cuts if they are useless by now.] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +void Cut_CutPrintMerge( Cut_Cut_t * pCut, Cut_Cut_t * pCut0, Cut_Cut_t * pCut1 ) +{ + printf( "\n" ); + printf( "%d : %5d %5d %5d %5d %5d\n", + pCut0->nLeaves, + pCut0->nLeaves > 0 ? pCut0->pLeaves[0] : -1, + pCut0->nLeaves > 1 ? pCut0->pLeaves[1] : -1, + pCut0->nLeaves > 2 ? pCut0->pLeaves[2] : -1, + pCut0->nLeaves > 3 ? pCut0->pLeaves[3] : -1, + pCut0->nLeaves > 4 ? pCut0->pLeaves[4] : -1 + ); + printf( "%d : %5d %5d %5d %5d %5d\n", + pCut1->nLeaves, + pCut1->nLeaves > 0 ? pCut1->pLeaves[0] : -1, + pCut1->nLeaves > 1 ? pCut1->pLeaves[1] : -1, + pCut1->nLeaves > 2 ? pCut1->pLeaves[2] : -1, + pCut1->nLeaves > 3 ? pCut1->pLeaves[3] : -1, + pCut1->nLeaves > 4 ? pCut1->pLeaves[4] : -1 + ); + if ( pCut == NULL ) + printf( "Cannot merge\n" ); + else + printf( "%d : %5d %5d %5d %5d %5d\n", + pCut->nLeaves, + pCut->nLeaves > 0 ? pCut->pLeaves[0] : -1, + pCut->nLeaves > 1 ? pCut->pLeaves[1] : -1, + pCut->nLeaves > 2 ? pCut->pLeaves[2] : -1, + pCut->nLeaves > 3 ? pCut->pLeaves[3] : -1, + pCut->nLeaves > 4 ? pCut->pLeaves[4] : -1 + ); +} + +//////////////////////////////////////////////////////////////////////// +/// END OF FILE /// +//////////////////////////////////////////////////////////////////////// + + |