Re: [PATCH] xtensa: Revise 89afb2e86fcb29c559b2957fdcbea0d01740c49b

[Max Filippov <jcmvbkbc@gmail.com>]

On Thu, Jan 19, 2023 at 7:33 PM Takayuki 'January June' Suwa
<jjsuwa_sys3175@yahoo.co.jp> wrote:
>
> In the previously posted patch
> "xtensa: Make complex hard register clobber elimination more robust and accurate",
> the check code for insns that refer to the [DS]Cmode hard register before
> it is overwritten after it is clobbered is incomplete.  Fortunately such
> insns are seldom emitted, so it didn't matter.
>
> This patch fixes that for the sake of completeness.
>
> gcc/ChangeLog:
>
>         * config/xtensa/xtensa.md:
>         Fix exit from loops detecting references before overwriting in the
>         split pattern.
> ---
>  gcc/config/xtensa/xtensa.md | 72 +++++++++++++++++++------------------
>  1 file changed, 37 insertions(+), 35 deletions(-)

Regtested for target=xtensa-linux-uclibc, no new regressions.
Committed to master with more human readable subject line.

-- 
Thanks.
-- Max