[Bug objc/124260] [16 Regression] ICE during IPA pass: cp when producing 64b objective-c code on 32b host

[cvs-commit at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124260

--- Comment #10 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:70e1e055e5225aa41a13675748e3e7a76d5303c0

commit r16-8046-g70e1e055e5225aa41a13675748e3e7a76d5303c0
Author: Martin Jambor <mjambor@suse.cz>
Date:   Thu Mar 12 16:59:34 2026 +0100

    ipa-prop: Skip analysis od static constructor entries with no index
(PR124260)

    PR 124260 is about dereferencing a NULL "index" tree when traversing
    static constructors of global variables.  As discussed in the bug, it
    is unclear whether that is allowed but ObjC compiler creates these at
    least on 32bit hosts.  Ian plans to fix this in the FE in the next
    stage1 but for this stage4, such entries can be easily skipped in
    ipa-prop (too).  The collected information is used for speculative
    "devirtualization" ony and so if we miss a relevant entry, it may only
    result in a "bad" decision whether to do that or not.

    gcc/ChangeLog:

    2026-03-11  Martin Jambor  <mjambor@suse.cz>

            PR objc/124260
            * ipa-prop.cc (ipa_analyze_var_static_initializer): Skip a
constructor
            entry if its index is NULL.