toplev.c (init_local_tick): Avoid signed integer multiplication overflow.

	* toplev.c (init_local_tick): Avoid signed integer multiplication
	overflow.
	* genautomata.c (reserv_sets_hash_value): Fix rotate idiom, avoid
	shift by first operand's bitsize.

From-SVN: r208765

gcc/ChangeLog

+2014-03-22  Jakub Jelinek  <jakub@redhat.com>
+
+	* toplev.c (init_local_tick): Avoid signed integer multiplication
+	overflow.
+	* genautomata.c (reserv_sets_hash_value): Fix rotate idiom, avoid
+	shift by first operand's bitsize.
+
 2014-03-21  Jakub Jelinek  <jakub@redhat.com>
 
 	PR target/60610

gcc/genautomata.c

@@ -3494,7 +3494,7 @@ reserv_sets_hash_value (reserv_sets_t reservs)
     {
       reservs_num--;
       hash_value += ((*reserv_ptr >> i)
-		     | (*reserv_ptr << ((sizeof (set_el_t) * CHAR_BIT) & -i)));
+		     | (*reserv_ptr << (((sizeof (set_el_t) * CHAR_BIT) - 1) & -i)));
       i++;
       if (i == sizeof (set_el_t) * CHAR_BIT)
 	i = 0;

gcc/toplev.c

@@ -261,7 +261,7 @@ init_local_tick (void)
 	struct timeval tv;
 
 	gettimeofday (&tv, NULL);
-	local_tick = tv.tv_sec * 1000 + tv.tv_usec / 1000;
+	local_tick = (unsigned) tv.tv_sec * 1000 + tv.tv_usec / 1000;
       }
 #else
       {