From: Max Filippov <jcmvbkbc@gmail.com>
To: "Takayuki 'January June' Suwa" <jjsuwa_sys3175@yahoo.co.jp>
Cc: GCC Patches <gcc-patches@gcc.gnu.org>
Subject: Re: [PATCH 2/2] xtensa: Make complex hard register clobber elimination more robust and accurate
Date: Fri, 9 Sep 2022 15:24:23 -0700 [thread overview]
Message-ID: <CAMo8BfKn7TR9TOS2zrRU9+RZswcMoSSXfg-QmUexU68e9KOSqw@mail.gmail.com> (raw)
In-Reply-To: <1a486e72-8b3a-752e-f1b8-4383a38c004b@yahoo.co.jp>
On Wed, Aug 31, 2022 at 10:50 PM Takayuki 'January June' Suwa
<jjsuwa_sys3175@yahoo.co.jp> wrote:
>
> This patch eliminates all clobbers for complex hard registers that will
> be overwritten entirely afterwards (supersedence of
> 3867d414bd7d9e5b6fb2a51b1fb3d9e9e1eae9).
>
> gcc/ChangeLog:
>
> * config/xtensa/xtensa.md: Rewrite the split pattern that performs
> the abovementioned process so that insns that overwrite clobbered
> register no longer need to be contiguous.
> (DSC): Remove as no longer needed.
> ---
> gcc/config/xtensa/xtensa.md | 67 +++++++++++++++++++++++++------------
> 1 file changed, 45 insertions(+), 22 deletions(-)
Regtested for target=xtensa-linux-uclibc, no new regressions.
Committed to master.
--
Thanks.
-- Max
prev parent reply other threads:[~2022-09-09 22:24 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-01 5:49 Takayuki 'January June' Suwa
2022-09-01 5:49 ` Takayuki 'January June' Suwa
2022-09-09 22:24 ` Max Filippov [this message]
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