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

Sorting multiplier inputs based on the number of constant bits.

This commit is contained in:
Alan Mishchenko 2016-03-24 17:45:51 -07:00
parent ecb2780a72
commit 72ffddb0ad
1 changed files with 21 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
src/base/wlc/wlcBlast.c
View File

@ -32,6 +32,25 @@ ABC_NAMESPACE_IMPL_START
/// FUNCTION DEFINITIONS /// /// FUNCTION DEFINITIONS ///
//////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Counts constant bits.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Wlc_NtkCountConstBits( int * pArray, int nSize )
{
int i, Counter = 0;
for ( i = 0; i < nSize; i++ )
Counter += (pArray[i] == 0 || pArray[i] == 1);
return Counter;
}
/**Function************************************************************* /**Function*************************************************************
Synopsis [Helper functions.] Synopsis [Helper functions.]
@ -1067,6 +1086,8 @@ Gia_Man_t * Wlc_NtkBitBlast( Wlc_Ntk_t * p, Vec_Int_t * vBoxIds )
int nRangeMax = Abc_MaxInt(nRange0, nRange1); int nRangeMax = Abc_MaxInt(nRange0, nRange1);
int * pArg0 = Wlc_VecLoadFanins( vTemp0, pFans0, nRange0, nRangeMax, fSigned ); int * pArg0 = Wlc_VecLoadFanins( vTemp0, pFans0, nRange0, nRangeMax, fSigned );
int * pArg1 = Wlc_VecLoadFanins( vTemp1, pFans1, nRange1, nRangeMax, fSigned ); int * pArg1 = Wlc_VecLoadFanins( vTemp1, pFans1, nRange1, nRangeMax, fSigned );
if ( Wlc_NtkCountConstBits(pArg0, nRangeMax) < Wlc_NtkCountConstBits(pArg1, nRangeMax) )
ABC_SWAP( int *, pArg0, pArg1 );
Wlc_BlastMultiplier( pNew, pArg0, pArg1, nRangeMax, nRangeMax, vTemp2, vRes, fSigned ); Wlc_BlastMultiplier( pNew, pArg0, pArg1, nRangeMax, nRangeMax, vTemp2, vRes, fSigned );
//Wlc_BlastMultiplier3( pNew, pArg0, pArg1, nRange0, nRange1, vRes ); //Wlc_BlastMultiplier3( pNew, pArg0, pArg1, nRange0, nRange1, vRes );
if ( nRange > nRangeMax + nRangeMax ) if ( nRange > nRangeMax + nRangeMax )