Re: [PATCH v2] [SPARC] Add -mfsmuld option

[Sebastian Huber <sebastian.huber@embedded-brains.de>]

On 26/07/17 14:44, Sebastian Huber wrote:

> On 26/07/17 14:13, Eric Botcazou wrote:
>
>>> Add the -mfsmuld option to control the generation of the FsMULd
>>> instruction.  In general, this instruction is available in architecture
>>> version V8 and V9 CPUs with FPU.  Some CPUs of this category do not
>>> support this instruction properly, e.g. AT697E, AT697F and UT699.  Some
>>> CPUs of this category do not implement it in hardware, e.g. LEON3/4 
>>> with
>>> GRFPU-lite.
>>>
>>> gcc/
>>>     * config/sparc/sparc.c (dump_target_flag_bits): Dump MASK_FSMULD.
>>>     (sparc_option_override): Honour MASK_FSMULD.
>>>     * config/sparc/sparc.h (MASK_FEATURES): Add MASK_FSMULD.
>>>     * config/sparc/sparc.md (muldf3_extend): Use TARGET_FSMULD.
>>>     * config/sparc/sparc.opt (mfsmuld): New option.
>>>     * doc/invoke.texi (mfsmuld): Document option.
>> OK for mainline and 7 branch modulo:
>>
>
> Thanks for your quick review. I am really glad that we can now use the 
> upcoming GCC 7.2 release.
>
> I checked it in as r250570 and r250571.
>

I would like to add this to the web site:

Index: htdocs/gcc-7/changes.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-7/changes.html,v
retrieving revision 1.88
diff -r1.88 changes.html
1248a1249,1251
 >     <li>Use of the Floating-point Multiply Single to Double (FsMULd)
 >         instruction can now be controlled by the 
<code>-mfsmuld</code> and
 >         <code>-fno-fsmuld</code> options.</li>
cvs diff: Diffing htdocs/gcc-8
Index: htdocs/gcc-8/changes.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-8/changes.html,v
retrieving revision 1.7
diff -r1.7 changes.html
148,149c148,153
< <!-- <h3 id="sparc">SPARC</h3> -->
<
---
 > <h3 id="sparc">SPARC</h3>
 > <ul>
 >   <li>Use of the Floating-point Multiply Single to Double (FsMULd) 
instruction
 >       can now be controlled by the <code>-mfsmuld</code> and
 >       <code>-fno-fsmuld</code> options.</li>
 > </ul>

-- 
Sebastian Huber, embedded brains GmbH

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