[PATCH, wwwdoc] Describe the changes of NDS32 port in GCC-5.0.

[Chung-Ju Wu <jasonwucj@gmail.com>]

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Hi, all,

There are some major changes on NDS32 port in GCC-5.0:
   https://gcc.gnu.org/ml/gcc-patches/2014-09/msg00316.html
   https://gcc.gnu.org/ml/gcc-patches/2015-01/msg00992.html
   https://gcc.gnu.org/ml/gcc-patches/2015-01/msg00993.html

This patch is to describe them in changes.html.

Although it is target-specific part, it is welcome for others to have
review comments on its format, layout, and english words improvement.

If there is no other comments about this patch, I will commit it into
trunk next week. :)


Best regards,
jasonwucj


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Index: htdocs/gcc-5/changes.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-5/changes.html,v
retrieving revision 1.77
diff -u -r1.77 changes.html
--- htdocs/gcc-5/changes.html	2 Feb 2015 08:49:09 -0000	1.77
+++ htdocs/gcc-5/changes.html	5 Feb 2015 02:28:05 -0000
@@ -560,6 +560,19 @@
 	optimize the Linux kernel.</li>
   </ul>
 
+<h3 id="nds32">NDS32</h3>
+  <ul>
+    <li>The variadic function ABI implementation is now compatible to the past
+    Andes toolchains where caller uses registers to pass arguments and callee
+    is in charge of pushing them into stack.</li>
+    <li>The options <code>-mforce-fp-as-gp</code>, <code>-mforbid-fp-as-gp</code>,
+    and <code>-mex9</code> have been removed since they are not available yet in
+    the nds32 port of binutils package.</li>
+    <li>New option <code>-mcmodel=small/medium/large</code> is provided to
+    support varied code model on code generation.  The <code>-mgp-direct</code>
+    option now becomes meaningless and can be discarded.</li>
+  </ul>
+
 <h3 id="sh">SH</h3>
   <ul>
     <li>The compiler will now pass the appropriate <code>--isa=</code> option