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From: Max Filippov <jcmvbkbc@gmail.com>
Date: Fri, 29 Jul 2022 21:15:58 -0700
Message-ID: <CAMo8Bf+PiNMrxq7KXEFC+O7W7h8pfuWFAtk-OS4cgksh2=_LhA@mail.gmail.com>
Subject: Re: [PATCH 2/2] xtensa: Fix conflicting hard regno between indirect
 sibcall fixups and EH_RETURN_STACKADJ_RTX
To: "Takayuki 'January June' Suwa" <jjsuwa_sys3175@yahoo.co.jp>
Cc: GCC Patches <gcc-patches@gcc.gnu.org>
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On Fri, Jul 29, 2022 at 12:34 PM Takayuki 'January June' Suwa
<jjsuwa_sys3175@yahoo.co.jp> wrote:
>
> The hard register A10 was already allocated for EH_RETURN_STACKADJ_RTX.
> (although exception handling and sibling call may not apply at the same time,
>  but for safety)
>
> gcc/ChangeLog:
>
>         * config/xtensa/xtensa.md: Change hard register number used in
>         the split patterns for indirect sibling call fixups from 10 to 11,
>         the last free one for the CALL0 ABI.
> ---
>  gcc/config/xtensa/xtensa.md | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)

Regtested for target=xtensa-linux-uclibc, no new regressions.
Committed to master.

-- 
Thanks.
-- Max