cfgloopmanip.c (force_single_succ_latches): Force latch to be different from header.

	* cfgloopmanip.c (force_single_succ_latches): Force latch to be
	different from header.

From-SVN: r68965

gcc/ChangeLog

+2003-07-05  Zdenek Dvorak  <rakdver@atrey.karlin.mff.cuni.cz>
+
+	* cfgloopmanip.c (force_single_succ_latches): Force latch to be
+	different from header.
+
 2003-07-05  Andreas Schwab  <schwab@suse.de>
 
 	* config/m68k/m68k.c: Remove code protected by CRDS.

gcc/cfgloopmanip.c

@@ -1191,7 +1191,8 @@ force_single_succ_latches (struct loops *loops)
   for (i = 1; i < loops->num; i++)
     {
       loop = loops->parray[i];
-      if (!loop->latch->succ->succ_next)
+      if (loop->latch != loop->header
+	  && !loop->latch->succ->succ_next)
 	continue;
 
       for (e = loop->header->pred; e->src != loop->latch; e = e->pred_next)