2004-12-04 Andrew Pinski <pinskia@physics.uc.edu>
PR middle-end/17909
* builtins.c (fold_builtin_next_arg): Export and return true
when there is a warning or an error.
(expand_builtin_va_start): When fold_builtin_next_arg returns true,
return const0_rtx.
(expand_builtin): Likewise.
* gimplify.c (gimplify_call_expr): Error out if there is not
enough arguments to va_start. Call fold_builtin_next_arg also
on the second argument.
* tree.h (fold_builtin_next_arg): Prototype.
From-SVN: r91727
