From: Jan Hubicka <hubicka@ucw.cz>
To: Richard Biener <richard.guenther@gmail.com>
Cc: Alexander Monakov <amonakov@ispras.ru>,
Michael Matz <matz@suse.de>,
gcc-patches@gcc.gnu.org
Subject: Re: [x86-64] RFC: Add nosse abi attribute
Date: Tue, 11 Jul 2023 10:53:18 +0200 [thread overview]
Message-ID: <ZK0YfliCddgAlfIn@kam.mff.cuni.cz> (raw)
In-Reply-To: <CAFiYyc2hiZjYc=4yEtq=QgchVTo_2+WJKEJFyahjaVaBLwwMow@mail.gmail.com>
> > > FWIW, this particular patch was regstrapped on x86-64-linux
> > > with trunk from a week ago (and sniff-tested on current trunk).
> >
> > This looks really cool.
>
> The biggest benefit might be from IPA with LTO where we'd carefully place those
> attributes at WPA time (at that time tieing our hands for later).
Within single partition IRA already propagates the knowledge about
callee-clobbered registers.
Across partition we already automatically enable regparm with -m32
see ix86_function_regparm and tests for target->local and
can_change_attribute
Enabling SSE at the same spot should be easy.
Honza
next prev parent reply other threads:[~2023-07-11 8:53 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-10 15:55 Michael Matz
2023-07-10 17:28 ` Richard Biener
2023-07-10 19:07 ` Alexander Monakov
2023-07-10 20:33 ` Alexander Monakov
2023-07-11 6:42 ` Richard Biener
2023-07-11 8:53 ` Jan Hubicka [this message]
2023-07-11 9:07 ` Richard Biener
2023-07-11 13:00 ` Richard Biener
2023-07-11 13:21 ` Jan Hubicka
2023-07-11 14:00 ` Michael Matz
2023-07-11 13:59 ` Alexander Monakov
2023-07-11 14:57 ` Michael Matz
2023-07-11 15:17 ` Alexander Monakov
2023-07-11 15:34 ` Michael Matz
2023-07-11 16:53 ` Alexander Monakov
2023-07-17 23:00 ` Richard Sandiford
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