* struct-equiv.c (find_dying_inputs): Fix off-by-one bug.

From-SVN: r109645

gcc/ChangeLog

+2006-01-12  Ulrich Weigand  <uweigand@de.ibm.com>
+
+	* struct-equiv.c (find_dying_inputs): Fix off-by-one bug.
+
 2006-01-11  Andrew Pinski  <pinskia@physics.uc.edu>
 
 	* config/i386/darwin.h (SUBTARGET_ENCODE_SECTION_INFO): Define.

gcc/struct-equiv.c

@@ -1280,7 +1280,7 @@ find_dying_inputs (struct equiv_info *info)
       int nregs = (regno >= FIRST_PSEUDO_REGISTER
 		   ? 1 : hard_regno_nregs[regno][GET_MODE (x)]);
 
-      for (info->local_rvalue[i] = false; nregs >= 0; regno++, --nregs)
+      for (info->local_rvalue[i] = false; nregs > 0; regno++, --nregs)
 	if (REGNO_REG_SET_P (info->x_local_live, regno))
 	  {
 	    info->dying_inputs++;