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Date: Thu, 26 May 2011 14:39:00 -0000
Message-ID: <BANLkTikahb5wjn-2X_NgAoWxK5V10qxkcw@mail.gmail.com>
Subject: Re: PATCH: Add pause intrinsic
From: Richard Guenther <richard.guenther@gmail.com>
To: Andrew Haley <aph@redhat.com>
Cc: "H.J. Lu" <hjl.tools@gmail.com>, gcc-patches@gcc.gnu.org
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On Thu, May 26, 2011 at 3:30 PM, Andrew Haley <aph@redhat.com> wrote:
> On 05/26/2011 10:34 AM, Richard Guenther wrote:
>
>>> Index: doc/extend.texi
>>> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>>> --- doc/extend.texi =A0 =A0 (revision 174216)
>>> +++ doc/extend.texi =A0 =A0 (working copy)
>>> @@ -8699,7 +8699,8 @@ The following built-in function is alway
>>>
>>> =A0@table @code
>>> =A0@item void __builtin_ia32_pause (void)
>>> -Generates the @code{pause} machine instruction with full memory barrie=
r.
>>> +Generates the @code{pause} machine instruction with a compiler memory
>>> +barrier.
>>> =A0@end table
>>
>> This isn't true. =A0It is _not_ a compiler memory barrier.
>
> Please elucidate. =A0Please suggest alternative wording.

+Generates the @code{pause} machine instruction.

Richard.

> Andrew.
>