Re: [PATCH] Initialize sanitizer builtins (PR sanitizer/60745)

[Jeff Law <law at redhat dot com>]

On 04/04/14 11:14, Marek Polacek wrote:
> So what happens here is that normally we initialize the builtins via
> c_common_nodes_and_builtins, which has:
>
>   5711   if (!flag_preprocess_only)
>   5712     c_define_builtins (va_list_ref_type_node, va_list_arg_type_node);
>
> c_define_builtins defines builtins in builtins.def, that includes even
> sanitizer.def.  I guess that flag_preprocess_only was in effect due to PCH
> and we didn't define the builtins.  I still haven't managed to create
> some sweet & small testcase, but I've found another ICE with PCH:
What doesn't make sense to me is I don't see where PCH sets 
flag_preprocess_only.  If you can point me to where that happens, then I 
think we'd just need a comment that PCH turns on flag_preprocess_only, 
which guards the creation of some builtins.

jeff