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Subject: [Bug libstdc++/109816] [13/14 Regression] r14-321 fix for PR108969
 breaks NVPTX offloading due to __asm (".globl _ZSt21ios_base_library_initv")
Date: Fri, 12 May 2023 14:30:28 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109816

--- Comment #9 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Tobias Burnus <burnus@gcc.gnu.org>:

https://gcc.gnu.org/g:a835f046cdf017b9e8ad5576df4f10daaf8420d0

commit r14-793-ga835f046cdf017b9e8ad5576df4f10daaf8420d0
Author: Tobias Burnus <tobias@codesourcery.com>
Date:   Fri May 12 16:27:40 2023 +0200

    LTO: Fix writing of toplevel asm with offloading [PR109816]

    When offloading was enabled, top-level 'asm' were added to the offloadi=
ng
    section, confusing assemblers which did not support the syntax.
Additionally,
    with offloading and -flto, the top-level assembler code did not end up
    in the host files.

    As r14-321-g9a41d2cdbcd added top-level 'asm' to one libstdc++ header f=
ile,
    the issue became more apparent, causing fails with nvptx for some
    C++ testcases.

            PR libstdc++/109816

    gcc/ChangeLog:

            * lto-cgraph.cc (output_symtab): Guard lto_output_toplevel_asms=
 by
            '!lto_stream_offload_p'.

    libgomp/ChangeLog:

            * testsuite/libgomp.c++/target-map-class-1.C: New test.
            * testsuite/libgomp.c++/target-map-class-2.C: New test.=