Improvements to the hierarchy/timing manager.

src/map/if/if.h

@@ -193,6 +193,7 @@ struct If_Man_t_
     int                pPerm[3][IF_MAX_LUTSIZE]; // permutations
     unsigned           uSharedMask;   // mask of shared variables
     int                nShared;       // the number of shared variables
+    int                fReqTimeWarn;  // warning about exceeding required times was printed
     // SOP balancing
     Vec_Int_t *        vCover;        // used to compute ISOP
     Vec_Wrd_t *        vAnds;         // intermediate storage
@@ -318,7 +319,7 @@ struct If_Box_t_
 {
     char *             pName;
     int                Id;
-    int                fWhite;
+    int                fBlack;
     int                nPis;
     int                nPos;
     int *              pDelays;

src/map/if/ifCore.c

@@ -86,7 +86,7 @@ int If_ManPerformMappingComb( If_Man_t * p )
     // set arrival times and fanout estimates
     If_ManForEachCi( p, pObj, i )
     {
-        If_ObjSetArrTime( pObj, p->pPars->pTimesArr[i] );
+        If_ObjSetArrTime( pObj, p->pPars->pTimesArr ? p->pPars->pTimesArr[i] : (float)0.0 );
         pObj->EstRefs = (float)1.0;
     }
 

src/map/if/ifLibBox.c

@@ -45,13 +45,13 @@ ABC_NAMESPACE_IMPL_START
   SeeAlso     []
 
 ***********************************************************************/
-If_Box_t * If_BoxStart( char * pName, int Id, int fWhite, int nPis, int nPos )
+If_Box_t * If_BoxStart( char * pName, int Id, int fBlack, int nPis, int nPos )
 {
     If_Box_t * p;
     p = ABC_CALLOC( If_Box_t, 1 );
     p->pName   = pName; // consumes memory
     p->Id      = Id;
-    p->fWhite  = fWhite;
+    p->fBlack  = fBlack;
     p->nPis    = nPis;
     p->nPos    = nPos;
     p->pDelays = ABC_CALLOC( int, nPis * nPos );
@@ -202,7 +202,7 @@ If_LibBox_t * If_LibBoxRead( char * pFileName )
         pToken = If_LibBoxGetToken( pFile );
         nPos   = atoi( pToken );
         // create box
-        pBox   = If_BoxStart( pName, Id, fWhite, nPis, nPos );
+        pBox   = If_BoxStart( pName, Id, !fWhite, nPis, nPos );
         If_LibBoxAdd( p, pBox );
         // read the table
         for ( i = 0; i < nPis * nPos; i++ )
@@ -224,7 +224,7 @@ void If_LibBoxPrint( FILE * pFile, If_LibBox_t * p )
     fprintf( pFile, "# <Name> <ID> <Type> <I> <O>\n" );
     If_LibBoxForEachBox( p, pBox, i )
     {
-        fprintf( pFile, "%s %d %d %d %d\n", pBox->pName, pBox->Id, pBox->fWhite, pBox->nPis, pBox->nPos );
+        fprintf( pFile, "%s %d %d %d %d\n", pBox->pName, pBox->Id, !pBox->fBlack, pBox->nPis, pBox->nPos );
         for ( j = 0; j < pBox->nPos; j++, printf("\n") )
             for ( k = 0; k < pBox->nPis; k++ )
                 if ( pBox->pDelays[j * pBox->nPis + k] == -1 )

src/map/if/ifMan.c

@@ -189,10 +189,8 @@ void If_ManStop( If_Man_t * p )
     ABC_FREE( p->puTemp[0] );
     ABC_FREE( p->pCutTemp );
     // free pars memory
-    if ( p->pPars->pTimesArr )
-        ABC_FREE( p->pPars->pTimesArr );
-    if ( p->pPars->pTimesReq )
-        ABC_FREE( p->pPars->pTimesReq );
+    ABC_FREE( p->pPars->pTimesArr );
+    ABC_FREE( p->pPars->pTimesReq );
     if ( p->pManTim )
         Tim_ManStop( p->pManTim );
     if ( p->vSwitching )

src/map/if/ifSeq.c

@@ -294,6 +294,7 @@ void If_ManPerformMappingSeqPost( If_Man_t * p )
 {
     If_Obj_t * pObjLi, * pObjLo, * pObj;
     int i;
+    assert( 0 );
 
     // set arrival times
     assert( p->pPars->pTimesArr != NULL );

src/map/if/ifUtil.c

@@ -156,23 +156,27 @@ void If_ManComputeRequired( If_Man_t * p )
     if ( p->pManTim == NULL )
     {
         // consider the case when the required times are given
-        if ( p->pPars->pTimesReq )
+        if ( p->pPars->pTimesReq && !p->pPars->fAreaOnly )
         {
-            assert( !p->pPars->fAreaOnly );
             // make sure that the required time hold
             Counter = 0;
             If_ManForEachCo( p, pObj, i )
             {
                 if ( If_ObjArrTime(If_ObjFanin0(pObj)) > p->pPars->pTimesReq[i] + p->fEpsilon )
                 {
+                    If_ObjFanin0(pObj)->Required = If_ObjArrTime(If_ObjFanin0(pObj));
                     Counter++;
     //                Abc_Print( 0, "Required times are violated for output %d (arr = %d; req = %d).\n", 
     //                    i, (int)If_ObjArrTime(If_ObjFanin0(pObj)), (int)p->pPars->pTimesReq[i] );
                 }
-                If_ObjFanin0(pObj)->Required = p->pPars->pTimesReq[i];
+                else
+                    If_ObjFanin0(pObj)->Required = p->pPars->pTimesReq[i];
+            }
+            if ( Counter && !p->fReqTimeWarn )
+            {
+                Abc_Print( 0, "Required times are exceeded at %d output%s. The earliest arrival times are used.\n", Counter, Counter > 1 ? "s":"" );
+                p->fReqTimeWarn = 1;
             }
-            if ( Counter )
-                Abc_Print( 0, "Required times are violated for %d outputs.\n", Counter );
         }
         else
         {