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diff --git a/docs/ReleaseNotes.html b/docs/ReleaseNotes.html index 8470e83..5f6304b 100644 --- a/docs/ReleaseNotes.html +++ b/docs/ReleaseNotes.html @@ -221,15 +221,35 @@ License, a "BSD-style" license.</p> <!--=========================================================================--> <div class="doc_subsection"> -<a name="dragonegg">DragonEgg: GCC-4.5 as an LLVM frontend</a> +<a name="dragonegg">DragonEgg: llvm-gcc ported to gcc-4.5</a> </div> <div class="doc_text"> <p> -The goal of <a href="http://dragonegg.llvm.org/">DragonEgg</a> is to make -gcc-4.5 act like llvm-gcc without requiring any gcc modifications whatsoever. -<a href="http://dragonegg.llvm.org/">DragonEgg</a> is a shared library (dragonegg.so) -that is loaded by gcc at runtime. It ... +<a href="http://dragonegg.llvm.org/">DragonEgg</a> is a port of llvm-gcc to +gcc-4.5. Unlike llvm-gcc, which makes many intrusive changes to the underlying +gcc-4.2 code, dragonegg in theory does not require any gcc-4.5 modifications +whatsoever (currently one small patch is needed). This is thanks to the new +<a href="http://gcc.gnu.org/wiki/plugins">gcc plugin architecture</a>, which +makes it possible to modify the behaviour of gcc at runtime by loading a plugin, +which is nothing more than a dynamic library which conforms to the gcc plugin +interface. DragonEgg is a gcc plugin that causes the LLVM optimizers to be run +instead of the gcc optimizers, and the LLVM code generators instead of the gcc +code generators, just like llvm-gcc. To use it, you add +"-fplugin=path/dragonegg.so" to the gcc-4.5 command line, and gcc-4.5 magically +becomes llvm-gcc-4.5! +</p> + +<p> +DragonEgg is still a work in progress. Currently C works very well, while C++, +Ada and Fortran work fairly well. All other languages either don't work at all, +or only work poorly. For the moment only the x86-32 and x86-64 targets are +supported, and only on linux. +</p> + +<p> +DragonEgg has not yet been released. Once gcc-4.5 has been released, dragonegg +will probably be released as part of the following LLVM release. </p> </div> @@ -1058,7 +1078,7 @@ lists</a>.</p> src="http://www.w3.org/Icons/valid-html401-blue" alt="Valid HTML 4.01"></a> <a href="http://llvm.org/">LLVM Compiler Infrastructure</a><br> - Last modified: $Date: 2010-04-01 03:53:24 +0200 (Thu, 01 Apr 2010) $ + Last modified: $Date: 2010-04-02 11:23:15 +0200 (Fri, 02 Apr 2010) $ </address> </body> |
