[www] document alpha abi change wrt complex values

[Richard Henderson]

Committed.


r~


Index: changes.html
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RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-3.4/changes.html,v
retrieving revision 1.86
diff -c -p -d -r1.86 changes.html
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      built-in functions</a> have been added such as
      <code>__builtin_alpha_zap</code> to allow utilizing the more
      obscure instructions of the CPU.</li>
+ 
+     <li>Parameter passing of complex arguments has changed to match the
+     <a href="http://h30097.www3.hp.com/docs/base_doc/DOCUMENTATION/V51A_HTML/ARH9MBTE/DTMNPLTN.HTM#normal-argument-list-structure">
+     ABI</a>.  This change is incompatible with previous GCC versions, but
+     does fix compatibility with the Tru64 compiler and several corner cases
+     where GCC was incompatible with itself.</li>
    </ul>
  
  <h4>ARM</h4>