[Bug ipa/107300] [13 Regression] ICE: verify_ssa failed (error: virtual definition of statement not up to date)

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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107300

--- Comment #8 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Jakub Jelinek <jakub@gcc.gnu.org>:

https://gcc.gnu.org/g:d2423144eb36a68fd0da9224857ce807714874a7

commit r13-5645-gd2423144eb36a68fd0da9224857ce807714874a7
Author: Jakub Jelinek <jakub@redhat.com>
Date:   Thu Feb 2 10:54:54 2023 +0100

    Replace IFN_TRAP with BUILT_IN_UNREACHABLE_TRAP [PR107300]

    For PR106099 I've added IFN_TRAP as an alternative to __builtin_trap
    meant for __builtin_unreachable purposes (e.g. with -funreachable-traps
    or some sanitizers) which doesn't need vops because __builtin_unreachable
    doesn't need them either.  This works in various cases, but unfortunately
    IPA likes to decide on the redirection to unreachable just by tweaking
    the cgraph edge to point to a different FUNCTION_DECL.  As internal
    functions don't have a decl, this causes problems like in the following
    testcase.

    The following patch fixes it by removing IFN_TRAP again and replacing
    it with user inaccessible BUILT_IN_UNREACHABLE_TRAP, so that e.g.
    builtin_decl_unreachable can return it directly and we don't need to tweak
    it later in wherever we actually replace the call stmt.

    2023-02-02  Jakub Jelinek  <jakub@redhat.com>

            PR ipa/107300
            * builtins.def (BUILT_IN_UNREACHABLE_TRAP): New builtin.
            * internal-fn.def (TRAP): Remove.
            * internal-fn.cc (expand_TRAP): Remove.
            * tree.cc (build_common_builtin_nodes): Define
            BUILT_IN_UNREACHABLE_TRAP if not yet defined.
            (builtin_decl_unreachable): Use BUILT_IN_UNREACHABLE_TRAP
            instead of BUILT_IN_TRAP.
            * gimple.cc (gimple_build_builtin_unreachable): Remove
            emitting internal function for BUILT_IN_TRAP.
            * asan.cc (maybe_instrument_call): Handle
BUILT_IN_UNREACHABLE_TRAP.
            * cgraph.cc (cgraph_edge::verify_corresponds_to_fndecl): Handle
            BUILT_IN_UNREACHABLE_TRAP instead of BUILT_IN_TRAP.
            * ipa-devirt.cc (possible_polymorphic_call_target_p): Handle
            BUILT_IN_UNREACHABLE_TRAP.
            * builtins.cc (expand_builtin, is_inexpensive_builtin): Likewise.
            * tree-cfg.cc (verify_gimple_call,
            pass_warn_function_return::execute): Likewise.
            * attribs.cc (decl_attributes): Don't report exclusions on
            BUILT_IN_UNREACHABLE_TRAP either.

            * gcc.dg/pr107300.c: New test.