[Bug ipa/112815] ICE: in vague_linkage_p, at cp/decl2.cc:2329 with -flto -fno-weak

["mpolacek at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112815

Marek Polacek <mpolacek at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |mpolacek at gcc dot gnu.org
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW
          Component|c++                         |ipa
   Last reconfirmed|                            |2024-01-18

--- Comment #1 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Confirmed.

Started with r6-1066-g233ce289250944:

commit 233ce289250944dde071638799f9ba1a51a0a9bf
Author: Jan Hubicka <hubicka@ucw.cz>
Date:   Sun May 24 21:38:14 2015 +0200

    re PR lto/66180 (many -Wodr false positives when building LLVM with -flto)


            PR lto/66180
            * ipa-devirt.c (type_with_linkage): Check that TYPE_STUB_DECL
            is set; check for assembler name at LTO time.
            (type_in_anonymous_namespace): Remove hacks, check that all
            anonymous types are called "<anon>"
            (odr_type_p): Simplify; add check for "<anon>"
            (odr_subtypes_equivalent): Add odr_type_p check.
            * tree.c (need_assembler_name_p): Even anonymous namespace needs
            assembler name.
            * mangle.c (mangle_decl): Mangle anonymous namespace types as
            "<anon>".
            * g++.dg/lto/pr66180_0.C: New testcase.
            * g++.dg/lto/pr66180_1.C: New testcase.

    From-SVN: r223633