[Bug ipa/116572] [14/15 Regression] Using a std::string passed to a virtual member function of a side-casted pointer spuriously ICEs (wrong code with checking disable)

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116572

--- Comment #7 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Martin Jambor <jamborm@gcc.gnu.org>:

https://gcc.gnu.org/g:075ec330307c5b1fe5ed166a633c718c06b01437

commit r15-8061-g075ec330307c5b1fe5ed166a633c718c06b01437
Author: Martin Jambor <mjambor@suse.cz>
Date:   Fri Mar 14 16:07:01 2025 +0100

    ipa: Do not modify cgraph edges from thunk clones during inlining
(PR116572)

    In PR 116572 we hit an assert that a thunk which does not have a body
    looks like it has one.  It does not, but the call_stmt of its outgoing
    edge points to a statement, which should not.  In fact it has several
    outgoing call graph edges, which cannot be.  The problem is that the
    code updating the edges to reflect inlining into the master clone (an
    ex-thunk, unlike the clone, which is still an unexpanded thunk) is
    being updated during inling into the master clone.  This patch simply
    makes the code to skip unexpanded thunk clones.

    gcc/ChangeLog:

    2025-03-13  Martin Jambor  <mjambor@suse.cz>

            PR ipa/116572
            * cgraph.cc (cgraph_update_edges_for_call_stmt): Do not update
            edges of clones that are unexpanded thunk.  Assert that the node
            passed as the parameter is not an unexpanded thunk.

    gcc/testsuite/ChangeLog:

    2025-03-13  Martin Jambor  <mjambor@suse.cz>

            PR ipa/116572
            * g++.dg/ipa/pr116572.C: New test.