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Re: linux says it is a bug
- From: lin zuojian <manjian2006 at gmail dot com>
- To: Yury Gribov <y dot gribov at samsung dot com>
- Cc: Richard Biener <richard dot guenther at gmail dot com>, Hannes Frederic Sowa <hannes at stressinduktion dot org>, Andrew Haley <aph at redhat dot com>, Jonathan Wakely <jwakely dot gcc at gmail dot com>, GCC Development <gcc at gcc dot gnu dot org>
- Date: Mon, 10 Mar 2014 19:16:52 +0800
- Subject: Re: linux says it is a bug
- Authentication-results: sourceware.org; auth=none
- References: <20140304064026 dot GE8019 at ubuntu> <CAFiYyc3bVGgG=dmozPG5m4Vx_oJbR=rR=TsZfj+01dvXmWiJmw at mail dot gmail dot com> <20140304091703 dot GE17043 at order dot stressinduktion dot org> <CAH6eHdQ2mrDYm5s2FiGWdQnp7V_cV0JdwGA381SXzp3D79j+=Q at mail dot gmail dot com> <20140304092420 dot GF17043 at order dot stressinduktion dot org> <53159C47 dot 5040901 at redhat dot com> <20140304093337 dot GG17043 at order dot stressinduktion dot org> <CAFiYyc0qdhHp+nV1qSy4X48yGo4nojrbAF7fgvW3sJf0pO_zxg at mail dot gmail dot com> <20140304135038 dot GA2995 at lin-desktop> <5316C6B7 dot 20205 at samsung dot com>
On Wed, Mar 05, 2014 at 10:39:51AM +0400, Yury Gribov wrote:
> >What is volatile instructions? Can you give us an example?
>
> Check volatile_insn_p. AFAIK there are two classes of volatile instructions:
> * volatile asm
> * unspec volatiles (target-specific instructions for e.g. protecting
> function prologues)
>
> -Y
Thanks.