Re: [GCC 4.8 wwwdocs] PATCH: Mention several user-visible changes for x86

[Kirill Yukhin <kirill dot yukhin at gmail dot com>]

Hi,
Checked in

Thanks, K

On Mon, Feb 18, 2013 at 10:28 AM, Igor Zamyatin <izamyatin@gmail.com> wrote:
> Gerald,
>
> Thanks a lot for your remarks!
>
> Below is updated patch which will be checked in.
>
>
> Thanks,
> Igor
>
> On Mon, Feb 18, 2013 at 3:07 AM, Gerald Pfeifer <gerald@pfeifer.com> wrote:
>> On Fri, 15 Feb 2013, Igor Zamyatin wrote:
>>> Is it ok for wwwdocs?
>>
>> Index: htdocs/gcc-4.8/changes.html
>> ===================================================================
>> +     <li>Support for the new Intel processor codename Broadwell with RDSEED,
>> +     ADCX, ADOX, PREFETCHW is available through <code>-madx</code>,
>> +     <code>-mprfchw</code>, <code>-mrdseed</code>.
>>
>> Can you make this <code>RDSEED</code>, <code>... and so forth?
>> (This is a bit borderline, in that one could also see this as
>> more general references, but usually we mark those up.)
>>
>> And "...through the ... command-line options."?
>>
>> +     <li> Support for Intel RTM and HLE intrinsics, built-in
>>
>> "the ... intrinsics" (and same below for "instruction sets")
>>
>> +     <li> x86 backend was improved to allow option
>> <code>-fscedule-insns</code> to work reliably.
>>
>> "The x86 backend has been improved..."
>>
>> +     This option can be used to schedule instructions better and can
>> lead to improved performace in certain cases.
>>
>> This line is quite long, can you break lines around 76 columns?
>>
>> And, let's be a bit more brave and omit either "can" or "in certain
>> cases".  Otherwise this may sounds too unlikely. :-)
>>
>> The patch is fine with changes along the lines described above.
>>
>> Thanks,
>> Gerald
>
> Index: htdocs/gcc-4.8/changes.html
>   ===================================================================
>   RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-4.8/changes.html,v
>   retrieving revision 1.95
>   diff -c -r1.95 changes.html
>   *** htdocs/gcc-4.8/changes.html 11 Feb 2013 15:12:58 -0000      1.95
>   --- htdocs/gcc-4.8/changes.html 12 Feb 2013 15:10:41 -0000
>   ***************
>   *** 460,465 ****
>   --- 460,471 ----
>         wrong results.  You must build all
>         modules with <code>-mpreferred-stack-boundary=3</code>, including any
>         libraries.  This includes the system libraries and startup modules.</li>
>   +     <li>Support for the new Intel processor codename Broadwell with
>   +     <code>RDSEED</code>, <code>ADCX</code>, <code>ADOX</code>,
>   +     <code>PREFETCHW</code> is available through <code>-madx</code>,
>   +     <code>-mprfchw</code>, <code>-mrdseed</code> command-line options.
>   +     </li>
>   +     <li> Support for the Intel RTM and HLE intrinsics, built-in
>   functions and code generation is available via <code>-mrtm</code> and
>   <code>-mhle</code>.
>   +     </li>
>   +     <li> Support for the Intel FXSR, XSAVE and XSAVEOPT instruction
>  sets. Intrinsics and built-in functions are available
>   +     via <code>-mfxsr</code>, <code>-mxsave</code> and
>  <code>-mxsaveopt</code> respectively.
>   +     </li>
>         <li> New built-in functions to detect run-time CPU type and ISA:
>         <ul>
>           <li>A built-in function <code>__builtin_cpu_is</code> has
> been added to
>   ***************
>   *** 524,529 ****
>   --- 530,538 ----
>         <a href="http://gcc.gnu.org/wiki/FunctionMultiVersioning";>wiki</a>
>   for more
>         information.
>         </li>
>   +     <li> The x86 backend has been improved to allow option
>  <code>-fscedule-insns</code> to work reliably.
>   +     This option can be used to schedule instructions better and leads to
>   +     improved performace in certain cases.
>   +     </li>
>         <li> Windows MinGW-w64 targets (<code>*-w64-mingw*</code>)
>   require at least r5437 from the Mingw-w64 trunk. </li>
>       </ul>