[Bug c++/50594] Option -fwhole-program discards replaced new operator for std::string

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50594

--- Comment #20 from Jason Merrill <jason at gcc dot gnu.org> 2011-10-04 
18:37:09 UTC ---
(In reply to comment #19)
> could you just amend that implicit declaration to include the visibility
> attribute?

Certainly.  They're declared in cxx_init_decl_processing:

      push_cp_library_fn (NEW_EXPR, newtype);
      push_cp_library_fn (VEC_NEW_EXPR, newtype);