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Detecting properties of internal nodes.

This commit is contained in:
Alan Mishchenko 2016-06-14 15:37:59 -07:00
parent a18da5c878
commit 0a1b6f8fcc
3 changed files with 14 additions and 185 deletions
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4
src/base/abci/abc.c
View File

@ -7216,7 +7216,7 @@ usage:
***********************************************************************/
int Abc_CommandDetect( Abc_Frame_t * pAbc, int argc, char ** argv )
{
extern void Abc_NtkDetectClassesTest( Abc_Ntk_t * pNtk );
extern void Abc_NtkDetectClassesTest( Abc_Ntk_t * pNtk, int fVerbose );
Abc_Ntk_t * pNtk;
int c, fVerbose = 0;
pNtk = Abc_FrameReadNtk(pAbc);
@ -7244,7 +7244,7 @@ int Abc_CommandDetect( Abc_Frame_t * pAbc, int argc, char ** argv )
Abc_Print( -1, "Only applicable to a logic network.\n" );
return 1;
}
Abc_NtkDetectClassesTest( pNtk );
Abc_NtkDetectClassesTest( pNtk, fVerbose );
return 0;
usage:

193
src/base/abci/abcDetect.c
View File

@ -8,7 +8,7 @@
Synopsis [Detect conditions.]
Author [Alan Mishchenko]
Author [Alan Mishchenko, Dao Ai Quoc]
Affiliation [UC Berkeley]
@ -21,10 +21,11 @@
#include "base/abc/abc.h"
#include "misc/vec/vecHsh.h"
#include "misc/util/utilNam.h"
#include "sat/cnf/cnf.h"
#include "sat/bsat/satStore.h"
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
@ -45,15 +46,6 @@ typedef enum {
ABC_FIN_RDOB_LAST // 12:
} Abc_FinType_t;
typedef struct Fin_Info_t_
{
Vec_Int_t * vPairs; // original info as a set of pairs (ObjId, TypeId)
Vec_Int_t * vObjs; // all those objects that have some info
Vec_Wec_t * vMap; // for each object, the set of types
Vec_Wec_t * vClasses; // classes of objects
} Abc_FinInfo_t;
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
@ -145,6 +137,7 @@ Vec_Int_t * Io_ReadFins( Abc_Ntk_t * pNtk, char * pFileName, int fVerbose )
assert( Vec_IntSize(vMap) == Abc_NamObjNumMax(pNam) );
// read file lines
vPairs = Vec_IntAlloc( 1000 );
Vec_IntPushTwo( vPairs, -1, -1 );
while ( fgets(Buffer, 1000, pFile) != NULL )
{
// read line number
@ -168,17 +161,18 @@ Vec_Int_t * Io_ReadFins( Abc_Ntk_t * pNtk, char * pFileName, int fVerbose )
Type = Io_ReadFinType( pToken );
if ( Type == ABC_FIN_NONE )
{
printf( "Cannot read type \"%s\" of object \"%s\".\n", pToken, Abc_ObjName(pObj) );
printf( "Cannot read type \"%s\" of object \"%s\".\n", pToken, Abc_ObjName(Abc_NtkObj(pNtk, iObj)) );
continue;
}
Vec_IntPushTwo( vPairs, Vec_IntEntry(vMap, iObj), Type );
}
assert( Vec_IntSize(vPairs) == 2 * nLines );
printf( "Finished reading %d lines.\n", nLines - 1 );
// verify the reader by printing the results
if ( fVerbose )
Vec_IntForEachEntryDouble( vPairs, iObj, Type, i )
printf( "%-10d%-10s%-10s\n", i/2+1, Abc_ObjName(Abc_NtkObj(pNtk, iObj)), Io_WriteFinType(Type) );
Vec_IntForEachEntryDoubleStart( vPairs, iObj, Type, i, 2 )
printf( "%-10d%-10s%-10s\n", i/2, Abc_ObjName(Abc_NtkObj(pNtk, iObj)), Io_WriteFinType(Type) );
finish:
Vec_IntFree( vMap );
@ -190,138 +184,7 @@ finish:
/**Function*************************************************************
Synopsis [Detect equivalence classes of nodes in terms of their TFO.]
Description [Given is the logic network (pNtk) and the set of objects
(primary inputs or internal nodes) to be considered (vObjs), this function
returns a set of equivalence classes of these objects in terms of their
transitive fanout (TFO). Two objects belong to the same class if the set
of COs they feed into are the same.]
SideEffects []
SeeAlso []
***********************************************************************/
int Abc_NtkDetectClasses_rec( Abc_Obj_t * pObj, Vec_Int_t * vMap, Hsh_VecMan_t * pHash, Vec_Int_t * vTemp )
{
Vec_Int_t * vArray, * vSet;
Abc_Obj_t * pNext; int i;
// get the CO set for this object
int Entry = Vec_IntEntry(vMap, Abc_ObjId(pObj));
if ( Entry != -1 ) // the set is already computed
return Entry;
// compute a new CO set
assert( Abc_ObjIsCi(pObj) || Abc_ObjIsNode(pObj) );
// if there is no fanouts, the set of COs is empty
if ( Abc_ObjFanoutNum(pObj) == 0 )
{
Vec_IntWriteEntry( vMap, Abc_ObjId(pObj), 0 );
return 0;
}
// compute the set for the first fanout
Entry = Abc_NtkDetectClasses_rec( Abc_ObjFanout0(pObj), vMap, pHash, vTemp );
if ( Abc_ObjFanoutNum(pObj) == 1 )
return Entry;
vSet = Vec_IntAlloc( 16 );
// initialize the set with that of first fanout
vArray = Hsh_VecReadEntry( pHash, Entry );
Vec_IntClear( vSet );
Vec_IntAppend( vSet, vArray );
// iteratively add sets of other fanouts
Abc_ObjForEachFanout( pObj, pNext, i )
{
if ( i == 0 )
continue;
Entry = Abc_NtkDetectClasses_rec( pNext, vMap, pHash, vTemp );
vArray = Hsh_VecReadEntry( pHash, Entry );
Vec_IntTwoMerge2( vSet, vArray, vTemp );
ABC_SWAP( Vec_Int_t, *vSet, *vTemp );
}
// create or find new set and map the object into it
Entry = Hsh_VecManAdd( pHash, vSet );
Vec_IntWriteEntry( vMap, Abc_ObjId(pObj), Entry );
Vec_IntFree( vSet );
return Entry;
}
Vec_Wec_t * Abc_NtkDetectClasses( Abc_Ntk_t * pNtk, Vec_Int_t * vObjs )
{
Vec_Wec_t * vClasses; // classes of equivalence objects from vObjs
Vec_Int_t * vClassMap; // mapping of each CO set into its class in vClasses
Vec_Int_t * vClass; // one equivalence class
Abc_Obj_t * pObj;
int i, iObj, SetId, ClassId;
// create hash table to hash sets of CO indexes
Hsh_VecMan_t * pHash = Hsh_VecManStart( 1000 );
// create elementary sets (each composed of one CO) and map COs into them
Vec_Int_t * vMap = Vec_IntStartFull( Abc_NtkObjNumMax(pNtk) );
Vec_Int_t * vSet = Vec_IntAlloc( 16 );
assert( Abc_NtkIsLogic(pNtk) );
// compute empty set
SetId = Hsh_VecManAdd( pHash, vSet );
assert( SetId == 0 );
Abc_NtkForEachCo( pNtk, pObj, i )
{
Vec_IntFill( vSet, 1, i );
SetId = Hsh_VecManAdd( pHash, vSet );
Vec_IntWriteEntry( vMap, Abc_ObjId(pObj), SetId );
}
// make sure the array of objects is sorted
Vec_IntSort( vObjs, 0 );
// begin from the objects and map their IDs into sets of COs
Abc_NtkForEachObjVec( vObjs, pNtk, pObj, i )
Abc_NtkDetectClasses_rec( pObj, vMap, pHash, vSet );
Vec_IntFree( vSet );
// create map for mapping CO set its their classes
vClassMap = Vec_IntStartFull( Hsh_VecSize(pHash) + 1 );
// collect classes of objects
vClasses = Vec_WecAlloc( 1000 );
Vec_IntForEachEntry( vObjs, iObj, i )
{
// for a given object (iObj), find the ID of its COs set
SetId = Vec_IntEntry( vMap, iObj );
assert( SetId >= 0 );
// for the given CO set, finds its equivalence class
ClassId = Vec_IntEntry( vClassMap, SetId );
if ( ClassId == -1 ) // there is no equivalence class
{
// map this CO set into a new equivalence class
Vec_IntWriteEntry( vClassMap, SetId, Vec_WecSize(vClasses) );
vClass = Vec_WecPushLevel( vClasses );
}
else // get hold of the equivalence class
vClass = Vec_WecEntry( vClasses, ClassId );
// add objects to the class
Vec_IntPush( vClass, iObj );
// print the set for this object
//printf( "Object %5d : ", iObj );
//Vec_IntPrint( Hsh_VecReadEntry(pHash, SetId) );
}
Hsh_VecManStop( pHash );
Vec_IntFree( vClassMap );
Vec_IntFree( vMap );
return vClasses;
}
void Abc_NtkDetectClassesTest( Abc_Ntk_t * pNtk )
{
Vec_Int_t * vObjs;
Vec_Wec_t * vRes;
// for testing, create the set of object IDs for all combinational inputs (CIs)
Abc_Obj_t * pObj; int i;
vObjs = Vec_IntAlloc( Abc_NtkCiNum(pNtk) );
Abc_NtkForEachCi( pNtk, pObj, i )
Vec_IntPush( vObjs, Abc_ObjId(pObj) );
// compute equivalence classes of CIs and print them
vRes = Abc_NtkDetectClasses( pNtk, vObjs );
Vec_WecPrint( vRes, 0 );
// clean up
Vec_IntFree( vObjs );
Vec_WecFree( vRes );
}
/**Function*************************************************************
Synopsis [Miter construction.]
Synopsis [Top-level procedure.]
Description []
@ -330,46 +193,12 @@ void Abc_NtkDetectClassesTest( Abc_Ntk_t * pNtk )
SeeAlso []
***********************************************************************/
Vec_Int_t * Abc_NtkComputeObjects( Vec_Int_t * vPairs )
void Abc_NtkDetectClassesTest( Abc_Ntk_t * pNtk, int fVerbose )
{
int iObj, Type, i;
Vec_Int_t * vObjs = Vec_IntAlloc( 100 );
Vec_IntForEachEntryDouble( vPairs, iObj, Type, i )
Vec_IntPush( vObjs, iObj );
Vec_IntUniqify( vObjs );
return vObjs;
printf( "This procedure is currently not used.\n" );
}
Vec_Wec_t * Abc_NtkComputeObjInfo( Vec_Int_t * vPairs, int nObjs )
{
int iObj, Type, i;
Vec_Wec_t * vInfo = Vec_WecStart( nObjs );
Vec_IntForEachEntryDouble( vPairs, iObj, Type, i )
Vec_WecPush( vInfo, iObj, Type );
return vInfo;
}
void Abc_NtkSolveClassesTest( Abc_Ntk_t * pNtk )
{
Abc_FinInfo_t * p;
if ( pNtk->vFins == NULL )
{
printf( "Current network does not have the required info.\n" );
return;
}
// collect data
p = ABC_CALLOC( Abc_FinInfo_t, 1 );
p->vPairs = pNtk->vFins;
p->vObjs = Abc_NtkComputeObjects( p->vPairs );
p->vMap = Abc_NtkComputeObjInfo( p->vPairs, Abc_NtkObjNumMax(pNtk) );
p->vClasses = Abc_NtkDetectClasses( pNtk, p->vObjs );
// cleanup
Vec_WecFree( p->vClasses );
Vec_WecFree( p->vMap );
Vec_IntFree( p->vObjs );
ABC_FREE( p );
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////

2
src/base/cba/cbaCom.c
View File

@ -556,7 +556,7 @@ int Cba_CommandBlast( Abc_Frame_t * pAbc, int argc, char ** argv )
Abc_FrameUpdateGia( pAbc, pNew );
return 0;
usage:
Abc_Print( -2, "usage: %%blast [-svh]\n" );
Abc_Print( -2, "usage: @blast [-svh]\n" );
Abc_Print( -2, "\t performs bit-blasting of the word-level design\n" );
Abc_Print( -2, "\t-s : toggle blasting sequential elements [default = %s]\n", fSeq? "yes": "no" );
Abc_Print( -2, "\t-v : toggle printing verbose information [default = %s]\n", fVerbose? "yes": "no" );