[Bug analyzer/114408] [13 Regression] ICE when invoking strcmp multiple times with -fsanitize=undefined -O1 -fanalyzer -flto

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114408

--- Comment #8 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-13 branch has been updated by David Malcolm
<dmalc...@gcc.gnu.org>:

https://gcc.gnu.org/g:96f7a3694c3e4c72af6258cc9b38bce30e609bee

commit r13-8758-g96f7a3694c3e4c72af6258cc9b38bce30e609bee
Author: David Malcolm <dmalc...@redhat.com>
Date:   Thu May 9 13:09:32 2024 -0400

    analyzer: fix ICE and false positive with -Wanalyzer-deref-before-check
[PR114408]

    Backported from commit r14-9646-g80a0cb37456c49 (moving testcase to gcc.dg
    and handling conflict in kf.cc)

    gcc/analyzer/ChangeLog:
            PR analyzer/114408
            * engine.cc (impl_run_checkers): Free up any dominance info that
            we may have created.
            * kf.cc (class kf_ubsan_handler): New.
            (register_sanitizer_builtins): New.
            (register_known_functions): Call register_sanitizer_builtins.

    gcc/testsuite/ChangeLog:
            PR analyzer/114408
            * gcc.dg/analyzer/deref-before-check-pr114408.c: New test.
            * c-c++-common/ubsan/analyzer-ice-pr114408.c: New test.

    Signed-off-by: David Malcolm <dmalc...@redhat.com>