luke
/
abc
mirror of https://github.com/YosysHQ/abc.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

New way of blasting complex flops.

This commit is contained in:
Alan Mishchenko 2018-09-25 20:53:18 -07:00
parent a93699f696
commit 563f4a8a56
1 changed files with 101 additions and 18 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

119
src/base/wlc/wlcBlast.c
View File

@ -1141,6 +1141,7 @@ Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Wlc_BstPar_t * pParIn )
If_LibBox_t * pBoxLib = NULL;
Vec_Ptr_t * vTables = NULL;
Vec_Int_t * vFf2Ci = Vec_IntAlloc( 100 );
Vec_Int_t * vRegClasses = NULL;
Gia_Man_t * pTemp, * pNew, * pExtra = NULL;
Wlc_Obj_t * pObj, * pObj2;
Vec_Int_t * vBits = &p->vBits, * vTemp0, * vTemp1, * vTemp2, * vRes, * vAddOutputs = NULL, * vAddObjs = NULL;
@ -1208,6 +1209,7 @@ Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Wlc_BstPar_t * pParIn )
}
if ( Vec_IntSize(&p->vFfs2) > 0 )
{
Vec_Int_t * vSignature;
int nNewCis = 0, nNewCos = 0;
assert( pPar->vBoxIds == 0 );
// count bit-width of regular CIs/COs
@ -1226,13 +1228,37 @@ Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Wlc_BstPar_t * pParIn )
nFf2Regs+= Wlc_ObjRange(pObj);
}
// create hierarchy manager
pManTime = Tim_ManStart( nBitCis + nNewCis, nBitCos + nNewCos );
curPi = nBitCis;
pManTime = Tim_ManStart( nBitCis + nNewCis + nFf2Regs, nBitCos + nNewCos + nFf2Regs );
curPi = nBitCis + nFf2Regs;
curPo = 0;
// create AIG manager for logic of the boxes
pExtra = Gia_ManStart( Wlc_NtkObjNum(p) );
Gia_ManHashAlloc( pExtra );
assert( !pPar->fGiaSimple );
// create register classes
vRegClasses = Vec_IntAlloc(0);
vSignature = Vec_IntAlloc( 100 );
Vec_IntPushTwo( vSignature, -1, -1 );
Wlc_NtkForEachFf2( p, pObj, i )
{
int iClk0, iClk = Wlc_ObjFaninId( pObj, 1 );
int iAsyn0, iAsyn = Wlc_ObjFaninId( pObj, 5 );
nRange = Wlc_ObjRange(pObj);
Vec_IntForEachEntryDouble( vSignature, iClk0, iAsyn0, k )
if ( iClk == iClk0 && iAsyn == iAsyn0 )
{
for ( b = 0; b < nRange; b++ )
Vec_IntPush( vRegClasses, k/2 );
break;
}
if ( k < Vec_IntSize(vSignature) )
continue;
for ( b = 0; b < nRange; b++ )
Vec_IntPush( vRegClasses, k/2 );
Vec_IntPushTwo( vSignature, iClk, iAsyn );
}
assert( Vec_IntSize(vRegClasses) == nFf2Regs );
Vec_IntFree( vSignature );
// create box library
pBoxLib = If_LibBoxStart();
}
@ -1248,10 +1274,10 @@ Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Wlc_BstPar_t * pParIn )
nRange1 = Wlc_ObjFaninNum(pObj) > 1 ? Wlc_ObjRange( Wlc_ObjFanin1(p, pObj) ) : -1;
nRange2 = Wlc_ObjFaninNum(pObj) > 2 ? Wlc_ObjRange( Wlc_ObjFanin2(p, pObj) ) : -1;
nRange3 = Wlc_ObjFaninNum(pObj) > 3 ? Wlc_ObjRange( Wlc_ObjFanin(p, pObj, 3) ) : -1;
pFans0 = Wlc_ObjFaninNum(pObj) > 0 ? Vec_IntEntryP( vBits, Wlc_ObjCopy(p, Wlc_ObjFaninId0(pObj)) ) : NULL;
pFans1 = Wlc_ObjFaninNum(pObj) > 1 ? Vec_IntEntryP( vBits, Wlc_ObjCopy(p, Wlc_ObjFaninId1(pObj)) ) : NULL;
pFans2 = Wlc_ObjFaninNum(pObj) > 2 ? Vec_IntEntryP( vBits, Wlc_ObjCopy(p, Wlc_ObjFaninId2(pObj)) ) : NULL;
pFans3 = Wlc_ObjFaninNum(pObj) > 3 ? Vec_IntEntryP( vBits, Wlc_ObjCopy(p, Wlc_ObjFaninId(pObj,3)) ) : NULL;
pFans0 = pObj->Type != WLC_OBJ_FF && Wlc_ObjFaninNum(pObj) > 0 ? Vec_IntEntryP( vBits, Wlc_ObjCopy(p, Wlc_ObjFaninId0(pObj)) ) : NULL;
pFans1 = pObj->Type != WLC_OBJ_FF && Wlc_ObjFaninNum(pObj) > 1 ? Vec_IntEntryP( vBits, Wlc_ObjCopy(p, Wlc_ObjFaninId1(pObj)) ) : NULL;
pFans2 = pObj->Type != WLC_OBJ_FF && Wlc_ObjFaninNum(pObj) > 2 ? Vec_IntEntryP( vBits, Wlc_ObjCopy(p, Wlc_ObjFaninId2(pObj)) ) : NULL;
pFans3 = pObj->Type != WLC_OBJ_FF && Wlc_ObjFaninNum(pObj) > 3 ? Vec_IntEntryP( vBits, Wlc_ObjCopy(p, Wlc_ObjFaninId(pObj,3)) ) : NULL;
Vec_IntClear( vRes );
assert( nRange > 0 );
if ( pPar->vBoxIds && pObj->Mark )
@ -1355,7 +1381,7 @@ Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Wlc_BstPar_t * pParIn )
// add box to the library
sprintf( Buffer, "%s%03d", pObj->Type == WLC_OBJ_ARI_ADD ? "add":"mul", 1+If_LibBoxNum(pBoxLib) );
pBox = If_BoxStart( Abc_UtilStrsav(Buffer), 1+If_LibBoxNum(pBoxLib), nRange, nRange0 + nRange1 + nRange2, 0, 0, 0 );
pBox = If_BoxStart( Abc_UtilStrsav(Buffer), 1+If_LibBoxNum(pBoxLib), nRange0 + nRange1 + nRange2, nRange, 0, 0, 0 );
If_LibBoxAdd( pBoxLib, pBox );
for ( k = 0; k < pBox->nPis * pBox->nPos; k++ )
pBox->pDelays[k] = 1;
@ -1378,6 +1404,10 @@ Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Wlc_BstPar_t * pParIn )
}
if ( pObj->Type == WLC_OBJ_FO )
nFFouts += Vec_IntSize(vRes);
if ( pObj->Type == WLC_OBJ_FF )
{
// complement flop output whose init state is 1
}
}
else if ( pObj->Type == WLC_OBJ_BUF )
{
@ -1819,6 +1849,7 @@ Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Wlc_BstPar_t * pParIn )
int * pFans0, * pFans1, * pFans2, * pFans3;
int iReset, iSet, iEnable;
int nRangeIn = 2*nRange + 3; // D, reset, set, enable, Q
int iSre = Wlc_ObjFaninId(pObj, 6);
assert( pObj->Type == WLC_OBJ_FF );
@ -1870,19 +1901,31 @@ Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Wlc_BstPar_t * pParIn )
//iLitFlop = Gia_LitNotCond( Gia_ObjCopy(pObj), Gia_FlopIsOne(pObj) );
//iLit = Gia_ManHashMux( Gia_ObjGia(pObj), Gia_FlopEnableCopy(pObj), iLit, iLitFlop );
iLit = Gia_ManHashMux( pExtra, iEnable, Vec_IntEntry(vTemp0, k), Vec_IntEntry(vTemp1, k) );
// set
//iLit = Gia_ManHashOr( Gia_ObjGia(pObj), iLit, Gia_FlopSetCopy(pObj) );
iLit = Gia_ManHashOr( pExtra, iLit, iSet );
// reset
//iLit = Gia_ManHashAnd( Gia_ObjGia(pObj), iLit, Gia_LitNot(Gia_FlopResetCopy(pObj)) );
iLit = Gia_ManHashAnd( pExtra, iLit, Abc_LitNot(iReset) );
if ( iSre )
{
// reset
//iLit = Gia_ManHashAnd( Gia_ObjGia(pObj), iLit, Gia_LitNot(Gia_FlopResetCopy(pObj)) );
iLit = Gia_ManHashAnd( pExtra, iLit, Abc_LitNot(iReset) );
// set
//iLit = Gia_ManHashOr( Gia_ObjGia(pObj), iLit, Gia_FlopSetCopy(pObj) );
iLit = Gia_ManHashOr( pExtra, iLit, iSet );
}
else
{
// set
//iLit = Gia_ManHashOr( Gia_ObjGia(pObj), iLit, Gia_FlopSetCopy(pObj) );
iLit = Gia_ManHashOr( pExtra, iLit, iSet );
// reset
//iLit = Gia_ManHashAnd( Gia_ObjGia(pObj), iLit, Gia_LitNot(Gia_FlopResetCopy(pObj)) );
iLit = Gia_ManHashAnd( pExtra, iLit, Abc_LitNot(iReset) );
}
// create outputs in the external manager
Gia_ManAppendCo( pExtra, iLit );
}
// add box to the library
sprintf( Buffer, "%s%03d", "ff_comb", 1+If_LibBoxNum(pBoxLib) );
pBox = If_BoxStart( Abc_UtilStrsav(Buffer), 1+If_LibBoxNum(pBoxLib), nRange, nRangeIn, 0, 0, 0 );
pBox = If_BoxStart( Abc_UtilStrsav(Buffer), 1+If_LibBoxNum(pBoxLib), nRangeIn, nRange, 0, 0, 0 );
If_LibBoxAdd( pBoxLib, pBox );
for ( k = 0; k < pBox->nPis * pBox->nPos; k++ )
pBox->pDelays[k] = 1;
@ -1982,7 +2025,10 @@ Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Wlc_BstPar_t * pParIn )
if ( Vec_IntSize(&p->vFfs2) > 0 )
{
assert( nFFins == 0 && nFFouts == 0 );
Gia_ManSetRegNum( pNew, nFf2Regs );
// complement flop inputs whose init state is 1
for ( i = 0; i < nFf2Regs; i++ )
Gia_ManAppendCo( pNew, Gia_ManAppendCi(pNew) );
//Gia_ManSetRegNum( pNew, nFf2Regs );
}
else
{
@ -2015,13 +2061,13 @@ Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Wlc_BstPar_t * pParIn )
// finalize AIG with boxes
if ( Vec_IntSize(&p->vFfs2) > 0 )
{
curPo += nBitCos;
curPo += nBitCos + nFf2Regs;
assert( curPi == Tim_ManCiNum(pManTime) );
assert( curPo == Tim_ManCoNum(pManTime) );
// finalize the extra AIG
pExtra = Gia_ManCleanup( pTemp = pExtra );
Gia_ManStop( pTemp );
assert( Gia_ManPoNum(pExtra) == Gia_ManCiNum(pNew) - nBitCis );
assert( Gia_ManPoNum(pExtra) == Gia_ManCiNum(pNew) - nBitCis - nFf2Regs );
// attach
pNew->pAigExtra = pExtra;
pNew->pManTime = pManTime;
@ -2039,7 +2085,7 @@ Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Wlc_BstPar_t * pParIn )
// finalize the extra AIG
pExtra = Gia_ManCleanup( pTemp = pExtra );
Gia_ManStop( pTemp );
assert( Gia_ManPoNum(pExtra) == Gia_ManCiNum(pNew) - nBitCis );
assert( Gia_ManPoNum(pExtra) == Gia_ManCiNum(pNew) - nBitCis - nFf2Regs );
// attach
pNew->pAigExtra = pExtra;
pNew->pManTime = pManTime;
@ -2094,6 +2140,24 @@ Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Wlc_BstPar_t * pParIn )
}
}
Wlc_NtkForEachFf2( p, pObj, i )
{
char * pName = Wlc_ObjName(p, Wlc_ObjId(p, pObj));
nRange = Wlc_ObjRange( pObj );
if ( fSkipBitRange && nRange == 1 )
{
char Buffer[1000];
sprintf( Buffer, "%s_fo", pName );
Vec_PtrPush( pNew->vNamesIn, Abc_UtilStrsav(Buffer) );
}
else
for ( k = 0; k < nRange; k++ )
{
char Buffer[1000];
sprintf( Buffer, "%s_fo[%d]", pName, k );
Vec_PtrPush( pNew->vNamesIn, Abc_UtilStrsav(Buffer) );
}
}
Wlc_NtkForEachFf2( p, pObj, i )
{
char * pName = Wlc_ObjName(p, Wlc_ObjId(p, pObj));
nRange = Wlc_ObjRange( pObj );
@ -2254,6 +2318,24 @@ Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Wlc_BstPar_t * pParIn )
Vec_PtrPush( pNew->vNamesOut, Abc_UtilStrsav(Buffer) );
}
}
Wlc_NtkForEachFf2( p, pObj, i )
{
char * pName = Wlc_ObjName(p, Wlc_ObjId(p, pObj));
nRange = Wlc_ObjRange( pObj );
if ( fSkipBitRange && nRange == 1 )
{
char Buffer[1000];
sprintf( Buffer, "%s_fi", pName );
Vec_PtrPush( pNew->vNamesOut, Abc_UtilStrsav(Buffer) );
}
else
for ( k = 0; k < nRange; k++ )
{
char Buffer[1000];
sprintf( Buffer, "%s_fi[%d]", pName, k );
Vec_PtrPush( pNew->vNamesOut, Abc_UtilStrsav(Buffer) );
}
}
assert( Vec_PtrSize(pNew->vNamesOut) == Gia_ManCoNum(pNew) );
// replace the current library
@ -2290,6 +2372,7 @@ Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Wlc_BstPar_t * pParIn )
Vec_PtrFreeFree( pNew->vNamesIn ); pNew->vNamesIn = NULL;
Vec_PtrFreeFree( pNew->vNamesOut ); pNew->vNamesOut = NULL;
}
pNew->vRegClasses = vRegClasses;
return pNew;
}