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Subject: [Bug middle-end/100876] -Wmismatched-new-delete should understand
 placement new when it's not inlined
Date: Mon, 14 Jun 2021 22:51:45 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100876

--- Comment #3 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:d9f1466f88abef7c814d02ba39a6ea5ef420aaec

commit r12-1441-gd9f1466f88abef7c814d02ba39a6ea5ef420aaec
Author: Martin Sebor <msebor@redhat.com>
Date:   Mon Jun 14 16:34:48 2021 -0600

    Teach compute_objsize about placement new [PR100876].

    Resolves:
    PR c++/100876 - -Wmismatched-new-delete should understand placement new
when it's not inlined

    gcc/ChangeLog:

            PR c++/100876
            * builtins.c (gimple_call_return_array): Check for attribute fn
spec.
            Handle calls to placement new.
            (ndecl_dealloc_argno): Avoid placement delete.

    gcc/testsuite/ChangeLog:

            PR c++/100876
            * g++.dg/warn/Wmismatched-new-delete-4.C: New test.
            * g++.dg/warn/Wmismatched-new-delete-5.C: New test.
            * g++.dg/warn/Wstringop-overflow-7.C: New test.
            * g++.dg/warn/Wfree-nonheap-object-6.C: New test.
            * g++.dg/analyzer/placement-new.C: Prune out expected warning.=