[DOC PATCH, i386] Fix PR 81294, _subborrow_u64 argument order inconsistent with intrinsic reference

[Jakub Jelinek]

On Thu, Jul 13, 2017 at 09:26:25PM +0200, Uros Bizjak wrote:
> IMO, we should change only gcc-7 release branch, so developers can
> test for gcc-7.2+ to determine which release swapped arguments of
> mentioned intrinsics.

Agreed.

> The attached doc patch adds commented-out generic gcc-7.2 entry plus
> the above target-specific change.
> 
> OK for branch?

Ok for wwwdocs, with a nit:

> Index: htdocs/gcc-7/changes.html
> ===================================================================
> RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-7/changes.html,v
> retrieving revision 1.85
> diff -u -r1.85 changes.html
> --- htdocs/gcc-7/changes.html	10 May 2017 11:39:41 -0000	1.85
> +++ htdocs/gcc-7/changes.html	13 Jul 2017 19:19:02 -0000
> @@ -1230,5 +1230,25 @@
>  complete (that is, it is possible that some PRs that have been fixed
>  are not listed here).</p>
>  
> +<!-- .................................................................. -->
> +<!--
> +<h2><a name="7.2">GCC 7.2</a></h2>
> +
> +<p>This is the <a href="https://gcc.gnu.org/bugzilla/buglist.cgi?bug_status=RESOLVED&resolution=FIXED&target_milestone=7.2">list
> +of problem reports (PRs)</a> from GCC's bug tracking system that are
> +known to be fixed in the 7.2 release. This list might not be
> +complete (that is, it is possible that some PRs that have been fixed
> +are not listed here).</p>
> +
> +<h3>Target Specific Changes</h3>
> +
> +<h4>IA-32/x86-64</h4>
> +  <ul>
> +    <li>The argument order of _subborrow_u32 and _subborow_u64

s/borow/borrow/

> +      intrinsics has been changed to follow the latest update
> +      to the reference documentation.</li>
> +  </ul>
> +-->
> +
>  </body>
>  </html>


	Jakub