[wwwdocs] 4.9/changes.html: Mention -Wopenmp-simd/-fsimd-cost-model; Fortran update

[Gerald Pfeifer]

No feedback, so I now went ahead and applied this.

Tobias, if you have any suggestions, please advise.

Gerald

On Sun, 12 Apr 2015, Gerald Pfeifer wrote:
> [ Tobias, your burnus@net-b.de account just bounced with "mailbox full"! ]
> 
> On Tue, 18 Feb 2014, Tobias Burnus wrote:
>> is the wording okay - and/or do you have further suggestions?
> 
> Here are some suggestions on top of the existing text.
> 
> Remove a comma and break a long sentence in the SIMD section.
> Use "least significant" instead of "last significant" when
> refering to rounding and simplify a sentence in the Fortran
> section.
> 
> I have not committed this yet since the sentence on rounding
> really feels rather weird.  Should there be something like
> "whereas compatible would round..." (as opposed to "rounds")?
> 
> Gerald
> 
> Index: changes.html
> ===================================================================
> RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-4.9/changes.html,v
> retrieving revision 1.85
> diff -u -r1.85 changes.html
> --- changes.html	8 Apr 2015 10:33:06 -0000	1.85
> +++ changes.html	12 Apr 2015 21:47:26 -0000
> @@ -127,11 +127,11 @@
>  	>OpenMP specification</a> is now supported in the C and C++ compilers
>  	and starting with the 4.9.1 release also in the Fortran compiler.
>  	The new <code>-fopenmp-simd</code> option can be used to enable OpenMP's
> -	SIMD directives, while ignoring other OpenMP directives. The new <a
> +	SIMD directives while ignoring other OpenMP directives. The new <a
>  	href="https://gcc.gnu.org/onlinedocs/gcc-4.9.2/gcc/Optimize-Options.html#index-fsimd-cost-model-908"
>  	><code>-fsimd-cost-model=</code></a> option permits to tune the
>  	vectorization cost model for loops annotated with OpenMP and Cilk
> -	Plus <code>simd</code> directives; <code>-Wopenmp-simd</code> warns when
> +	Plus <code>simd</code> directives. <code>-Wopenmp-simd</code> warns when
>  	the current cost model overrides simd directives set by the user.</li>
>      <li>The <code>-Wdate-time</code> option has been added for the C, C++ and
>  	Fortran compilers, which warns when the <code>__DATE__</code>,
> @@ -459,9 +459,9 @@
>          <code>strtod</code> honours the rounding mode. (For output, rounding is
>          supported since GCC 4.5.) Note that for input, the
>          <code>compatible</code> rounding mode is handled as <code>nearest</code>
> -        (i.e., for a tie, rounding to an even last significant
> -        [cf. IEC 60559:1989] – while <code>compatible</code> rounds away
> -        from zero for a tie).</li>
> +        (i.e., rounding to an even least significant [cf. IEC 60559:1989]
> +        for a tie, while <code>compatible</code> rounds away from zero in
> +        that case).</li>
>      </ul></li>
>    </ul>