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From: Dongjiu Geng <gengdongjiu1@gmail.com>
To: "Martin Liška" <mliska@suse.cz>
Cc: gcc@gcc.gnu.org
Subject: Re: what is the difference with and without crc extension support
Date: Thu, 3 Mar 2022 21:52:36 +0800	[thread overview]
Message-ID: <CABSBigTiBK5ov4goB6AqRJgWPcA=wbBrU5OvPzw4BOcxV_acAA@mail.gmail.com> (raw)
In-Reply-To: <ca546805-24c5-4fc7-7d2e-137c496835c3@suse.cz>

Thanks for the answer, my source file is complex，it is not convenient
attach,  because it is company code.  According to your  experience，
what is the reason about it?

Martin Liška <mliska@suse.cz> 于2022年3月3日周四 21:48写道：
>
> On 3/3/22 14:41, Dongjiu Geng via Gcc wrote:
> > Hi,
> >       My program does not use CRC instructions，but I find the compiled
> > binary has much difference between using "-march=armv8-a+crc" and
> > using "-march=armv8-a". Even stranger, when I use
> > "-march=armv8-a+crc", I find my compiled binary can not run. but when
> > I change -O2 to -O0 based on "-march=armv8-a+crc",  it can run. I  do
> > not  know what is the reason.. can you answer it? Thanks.
>
> Hello.
>
> Please report bug here:
> https://gcc.gnu.org/bugzilla/
>
> and attach a pre-processed source file:
> https://gcc.gnu.org/bugs/
>
> Martin

  reply	other threads:[~2022-03-03 13:52 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-03 13:41 Dongjiu Geng
2022-03-03 13:48 ` Martin Liška
2022-03-03 13:52   ` Dongjiu Geng [this message]
2022-03-04 13:05     ` Martin Liška
2022-03-04 18:20 ` Richard Earnshaw

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