[Bug lto/112732] during IPA pass: *free_lang_data ICE: 'verify_type' failed: type variant with 'TYPE_ALIAS_SET_KNOWN_P' with -Os -Wstrict-aliasing=2 -flto

[cvs-commit at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112732

--- Comment #6 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-12 branch has been updated by Richard Biener
<rgue...@gcc.gnu.org>:

https://gcc.gnu.org/g:b46486ef0316240eb3c173bda062b52333507e03

commit r12-10492-gb46486ef0316240eb3c173bda062b52333507e03
Author: Richard Biener <rguent...@suse.de>
Date:   Tue Nov 28 12:36:21 2023 +0100

    middle-end/112732 - stray TYPE_ALIAS_SET in type variant

    The following fixes a stray TYPE_ALIAS_SET in a type variant built
    by build_opaque_vector_type which is diagnosed by type checking
    enabled with -flto.

            PR middle-end/112732
            * tree.cc (build_opaque_vector_type): Reset TYPE_ALIAS_SET
            of the newly built type.

    (cherry picked from commit f26d68d5d128c86faaceeb81b1e8f22254ad53df)