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From: "cvs-commit at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug middle-end/94647] [10 Regression] bogus -Warray-bounds on
 strncpy into a larger member array from a smaller array
Date: Tue, 21 Apr 2020 17:13:36 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D94647

--- Comment #5 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Martin Sebor <msebor@gcc.gnu.org>:

https://gcc.gnu.org/g:3942060c4b3168307b9e2870d81e7ca15b49760a

commit r10-7854-g3942060c4b3168307b9e2870d81e7ca15b49760a
Author: Martin Sebor <msebor@redhat.com>
Date:   Tue Apr 21 10:59:24 2020 -0600

    PR middle-end/94647 - bogus -Warray-bounds on strncpy into a larger mem=
ber
array from a smaller array

    gcc/ChangeLog:

            PR middle-end/94647
            * gimple-ssa-warn-restrict.c (builtin_access::builtin_access):
Correct
            the computation of the lower bound of the source access size.
            (builtin_access::generic_overlap): Remove a hack for setting ra=
nges
            of overlap offsets.

    gcc/testsuite/ChangeLog:

            PR middle-end/94647
            * c-c++-common/Warray-bounds-2.c: Adjust a test case and add a =
new
one.
            * c-c++-common/Warray-bounds-3.c: Add tests for missing warning=
s.
            * c-c++-common/Wrestrict.c: Invert bounds in printed ranges.
            * gcc.dg/Warray-bounds-59.c: New test.
            * gcc.dg/Wrestrict-10.c: Add a missing warning.
            * gcc.dg/Wrestrict-5.c: Adjust text of expected warning.
            * gcc.dg/Wrestrict-6.c: Expect to see a range of overlap offset=
s.=