[Bug ipa/98222] [11 Regression] ICE at -O3 on x86_64-pc-linux-gnu: verify_cgraph_node failed since r11-4267-g0e590b68fa374365

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98222

--- Comment #3 from CVS 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:0f4c8f517b7954e113afb4d5c7212123c8ee2418

commit r11-6756-g0f4c8f517b7954e113afb4d5c7212123c8ee2418
Author: Martin Jambor <mjambor@suse.cz>
Date:   Sun Jan 17 22:31:09 2021 +0100

    ipa: Adjust cgraph verifier to materialization on demand (PR 98222)

    after switching to materialization of clones on demand, the verifier
    can happen to see edges leading to a clone of a materialized clone.
    This means its clone_of is NULL and former_clone_of needs to be
    checked in order to verify that the callee is a clone of the original
    decl, which it did not do and reported edges to pointing to a wrong
    place.

    Fixed with the following patch, which has been pre-approved by Honza.
    Bootstrapped and tested on x86_64-linux, pushed to master.

    Martin

    gcc/ChangeLog:

    2021-01-15  Martin Jambor  <mjambor@suse.cz>

            PR ipa/98222
            * cgraph.c (clone_of_p): Check also former_clone_of as we climb
            the clone tree.

    gcc/testsuite/ChangeLog:

    2021-01-15  Martin Jambor  <mjambor@suse.cz>

            PR ipa/98222
            * gcc.dg/ipa/pr98222.c: New test.