[Bug tree-optimization/101494] [11 Regression] -Wmaybe-uninitialized false alarm with memrchr of size 0

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101494

--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Martin Sebor <mse...@gcc.gnu.org>:

https://gcc.gnu.org/g:1121e495b70105deeb82295f8210e30f2080bc37

commit r12-2583-g1121e495b70105deeb82295f8210e30f2080bc37
Author: Martin Sebor <mse...@redhat.com>
Date:   Wed Jul 28 16:25:40 2021 -0600

    Correct uninitialized object offset and size computation [PR101494].

    Resolves:
    PR middle-end/101494 - -Wuninitialized false alarm with memrchr of size 0

    gcc/ChangeLog:

            PR middle-end/101494
            * tree-ssa-uninit.c (maybe_warn_operand): Correct object offset
            and size computation.

    gcc/testsuite/ChangeLog:

            PR middle-end/101494
            * gcc.dg/uninit-pr101494.c: New test.