[Bug middle-end/100307] [11 Regression] spurious -Wplacement-new with negative pointer offset

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100307

--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-11 branch has been updated by Martin Sebor
<mse...@gcc.gnu.org>:

https://gcc.gnu.org/g:c2791cd4e62731ccde165c0e62b83f8e7ee38118

commit r11-8600-gc2791cd4e62731ccde165c0e62b83f8e7ee38118
Author: Martin Sebor <mse...@redhat.com>
Date:   Thu Jun 17 10:24:34 2021 -0600

    Backported from trunk:

    PR middle-end/100307 - spurious -Wplacement-new with negative pointer
offset

    gcc/ChangeLog:

            PR middle-end/100307
            * builtins.c (compute_objsize_r): Clear base0 for pointers.

    gcc/testsuite/ChangeLog:

            PR middle-end/100307
            * g++.dg/warn/Wplacement-new-size-9.C: New test.
            * gcc.dg/tree-ssa/builtin-sprintf-warn-26.c: New test.