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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 c++/91529] [8/9/10/11 Regression] -fmerge-all-constants leads
 to corrupt output without inlining
Date: Mon, 25 May 2020 22:38:26 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D91529

--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-9 branch has been updated by Jason Merrill
<jason@gcc.gnu.org>:

https://gcc.gnu.org/g:f76202e096fc0be4db21761399b55f10cd09b20d

commit r9-8621-gf76202e096fc0be4db21761399b55f10cd09b20d
Author: Jason Merrill <jason@redhat.com>
Date:   Mon May 25 18:38:09 2020 -0400

    c++: -fmerge-all-constants vs. destructors [PR91529]

    cp_finish_decl avoids setting TREE_READONLY on TREE_STATIC variables th=
at
    have non-constant construction or destruction, but -fmerge-all-constants
was
    converting an automatic variable to static while leaving TREE_READONLY =
set.

    Fixed by clearing the flag in cp_finish_decl in the presence of
    -fmerge-all-constants.

    gcc/cp/ChangeLog
    2020-05-01  Jason Merrill  <jason@redhat.com>

            PR c++/91529
            * decl.c (cp_finish_decl): Also clear TREE_READONLY if
            -fmerge-all-constants.=