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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 target/114175] [13/14] Execution test failures on
 gcc.dg/c23-stdarg-6.c on multiple targets
Date: Thu, 04 Apr 2024 16:26:43 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D114175

--- Comment #62 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-13 branch has been updated by Edwin Lu <ewlu@gcc.gnu.org>:

https://gcc.gnu.org/g:c4eff4ece764d836eb7ee0c0163780d100471730

commit r13-8579-gc4eff4ece764d836eb7ee0c0163780d100471730
Author: Edwin Lu <ewlu@rivosinc.com>
Date:   Mon Mar 18 11:43:41 2024 -0700

    RISC-V: Fix C23 (...) functions returning large aggregates [PR114175]

    We assume that TYPE_NO_NAMED_ARGS_STDARG_P don't have any named argumen=
ts
and
    there is nothing to advance, but that is not the case for (...) functio=
ns
    returning by hidden reference which have one such artificial argument.
    This causes gcc.dg/c23-stdarg-[68].c to fail

    Fix the issue by checking if arg.type is NULL as r14-9503-g218d1749612
    explains

    Tested on linux rv64gcv.

    gcc/ChangeLog:

            PR target/114175
            * config/riscv/riscv.cc (riscv_setup_incoming_varargs): Only sk=
ip
            riscv_funciton_arg_advance for TYPE_NO_NAMED_ARGS_STDARG_P
functions
            if arg.type is NULL

    (cherry picked from commit 60586710b0646efdbbd77a7f53b93fb5edb87a61)=