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[wwwdocs] Updates for hot/cold attribute and -mcmodel=large
- From: Jan Hubicka <jh at suse dot cz>
- To: gcc-patches at gcc dot gnu dot org
- Date: Tue, 6 Mar 2007 21:58:32 +0100
- Subject: [wwwdocs] Updates for hot/cold attribute and -mcmodel=large
Hi,
this is for the new user visible features comitted today...
Honza
Index: changes.html
===================================================================
RCS file: /cvs/gcc/wwwdocs/htdocs/gcc-4.3/changes.html,v
retrieving revision 1.33
diff -c -p -r1.33 changes.html
*** changes.html 4 Mar 2007 15:47:38 -0000 1.33
--- changes.html 6 Mar 2007 19:06:01 -0000
***************
*** 142,147 ****
--- 142,156 ----
the order in which the constructor and destructor functions are
run.
</li>
+ <li>New function attributes <code>hot</code> and <code>cold</code>
+ was introduced. Functions marked by <code>hot</code> attribute
+ are placed into <code>text.hot</code> subsection and the
+ performance to code size tradeoffs are biassed towards the performance.
+ Functions marked by <code>cold</code> attribute are placed
+ into <code>text.unlikely</code> subsection and the performance
+ to code size tradeoffs are biassed towards the code size. Additionally
+ the calls to cold functions are predicted as unlikely.
+ </li>
</ul>
<h3>C++</h3>
***************
*** 259,264 ****
--- 268,275 ----
afterward.</li>
<li>Support for SSSE3 built-in functions and code generation are
available via <code>-mssse3</code>.</li>
+ <li><code>-mcmodel=large</code> is now supported on x86-64
+ compilation.</li>
</ul>
<h3>ARM</h3>