calls.c (expand_call): Don't disable tail recursion based on the loop nest.

        * calls.c (expand_call): Don't disable tail recursion based
        on the loop nest.

From-SVN: r37822

gcc/ChangeLog

+2000-11-28  Jan Hubicka  <jh@suse.cz>
+
+	* calls.c (expand_call): Don't disable tail recursion based
+	on the loop nest.
+
 2000-11-28  Neil Booth  <neilb@earthling.net>
 
         * tradcpp.c (enum node_type): New hash types T_ASSERT, T_UNASSERT.

gcc/calls.c

@@ -2416,9 +2416,8 @@ expand_call (exp, target, ignore)
 
   /* Tail calls can make things harder to debug, and we're traditionally
      pushed these optimizations into -O2.  Don't try if we're already
-     expanding a call, as that means we're an argument.  Similarly, if
-     there's pending loops or cleanups we know there's code to follow
-     the call.
+     expanding a call, as that means we're an argument.  Don't try if
+     there's cleanups, as we know there's code to follow the call.
 
      If rtx_equal_function_value_matters is false, that means we've
      finished with regular parsing.  Which means that some of the
@@ -2429,7 +2428,6 @@ expand_call (exp, target, ignore)
   if (currently_expanding_call++ != 0
       || !flag_optimize_sibling_calls
       || !rtx_equal_function_value_matters
-      || !stmt_loop_nest_empty ()
       || any_pending_cleanups (1)
       || args_size.var)
     try_tail_call = try_tail_recursion = 0;