ix86_value_regno and callers

[Richard Henderson]

On Tue, Jul 05, 2005 at 05:14:44PM +0200, Richard Guenther wrote:
> I'm lost in the mysteries of expansion of the indirect call, also
> ix86_value_regno gets called all over the place, so the "interesting"
> call-site is hard to find.

We'll have to change the FUNCTION_VALUE interface to handle this.

I suggest doing this as a target hook:

  rtx function_value (tree ret_type, tree fn_decl_or_type, bool outgoing)

with 

rtx
default_function_value (tree ret_type, tree fn_decl_or_type,
			bool outgoing ATTRIBUTE_UNUSED)
{
  /* The old interface doesn't handle receiving the function type.  */
  if (!DECL_P (fn_decl_or_type))
    fn_decl_or_type = NULL;

#ifdef FUNCTION_OUTGOING_VALUE
  if (outgoing)
    return FUNCTION_OUTGOING_VALUE (ret_type, fn_decl_or_type);
#endif

  return FUNCTION_VALUE (ret_type, fn_decl_or_type);
}



r~