On Tue, May 3, 2011 at 6:15 PM, Xinliang David Li <davi...@google.com> wrote: > On Tue, May 3, 2011 at 3:55 AM, Jan Hubicka <hubi...@ucw.cz> wrote: >>> Is this one ok? >> Hi, >> we did quite some work on removing a langhooks for LTO, where they become >> quite impossible >> So I would like to know what testcase causes the problem and why. > > In fold-const.c, there are many of calls to > lang_hooks.decls.global_bindings_p, and the implementation of this in > name-lookup.h will look at the the cfun->language
Umm, I think most of them (if not all) are just bogus. If a FE doesn't want to fold some stuff when at global scope it should not call fold. But I'm not sure that is actually what it tries to do ... and the existing checks are far from consistently spread out in fold-const.c ... Richard.
