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Misha Brukman83bd33a2003-10-23 01:48:33 +0000[diff] [blame]3<html>
4<head>
Misha Brukman6a2b3102004-05-12 18:49:47 +0000[diff] [blame]5 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
6 <link rel="stylesheet" href="llvm.css" type="text/css" media="screen">
Misha Brukmanb9e57892003-10-28 21:09:29 +0000[diff] [blame]7 <title>Bootstrapping the LLVM C/C++ Front-End</title>
Misha Brukman83bd33a2003-10-23 01:48:33 +0000[diff] [blame]8</head>
9<body>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]10
Misha Brukman83bd33a2003-10-23 01:48:33 +0000[diff] [blame]11<div class="doc_title">
Misha Brukmanb9e57892003-10-28 21:09:29 +0000[diff] [blame]12 Bootstrapping the LLVM C/C++ Front-End
Misha Brukman83bd33a2003-10-23 01:48:33 +0000[diff] [blame]13</div>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]14
Brian Gaeke7af03e92003-11-12 20:47:30 +0000[diff] [blame]15<ol>
16 <li><a href="#cautionarynote">A Cautionary Note</a>
Chris Lattner6a615ad2004-06-01 18:13:05 +0000[diff] [blame]17 <ul>
Misha Brukman62a93432004-06-18 15:54:54 +0000[diff] [blame]18 <li><a href="#cygwin">Building under Cygwin</a></li>
Misha Brukman03ea9d42004-08-23 17:54:45 +0000[diff] [blame]19 <li><a href="#aix">Building under AIX</a></li>
Chris Lattner6a615ad2004-06-01 18:13:05 +0000[diff] [blame]20 </ul>
21 </li>
22 <li><a href="#instructions">Instructions</a></li>
23 <li><a href="#license">License Information</a></li>
Brian Gaeke7af03e92003-11-12 20:47:30 +0000[diff] [blame]24</ol>
25
Chris Lattner7911ce22004-05-23 21:07:27 +0000[diff] [blame]26<div class="doc_author">
Chris Lattner6a615ad2004-06-01 18:13:05 +0000[diff] [blame]27 <p>Written by Brian R. Gaeke and
28 <a href="http://nondot.org/sabre">Chris Lattner</a></p>
Brian Gaeke7af03e92003-11-12 20:47:30 +0000[diff] [blame]29</div>
30
31<!-- *********************************************************************** -->
32<div class="doc_section">
33 <a name="cautionarynote">A Cautionary Note</a>
34</div>
35<!-- *********************************************************************** -->
36
37<div class="doc_text">
38<p>This document is intended to explain the process of building the
39LLVM C/C++ front-end, based on GCC 3.4, from its source code. You
40would have to do this, for example, if you are porting LLVM to a new
41architecture or operating system.</p>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]42
43<p><b>NOTE:</b> This is currently a somewhat fragile, error-prone
Misha Brukmanb9e57892003-10-28 21:09:29 +0000[diff] [blame]44process, and you should <b>only</b> try to do it if:</p>
45
46<ol>
47 <li>you really, really, really can't use the binaries we distribute</li>
Misha Brukmanb9e57892003-10-28 21:09:29 +0000[diff] [blame]48 <li>you are an elite GCC hacker.</li>
Chris Lattnerc8118e12005-02-21 16:35:31 +0000[diff] [blame]49 <li>you want to use the latest bits from CVS.</li>
Misha Brukmanb9e57892003-10-28 21:09:29 +0000[diff] [blame]50</ol>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]51
52<p>We welcome patches to help make this process simpler.</p>
Brian Gaeke7af03e92003-11-12 20:47:30 +0000[diff] [blame]53</div>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]54
Chris Lattner6a615ad2004-06-01 18:13:05 +0000[diff] [blame]55<!--=========================================================================-->
56<div class="doc_subsection">
Misha Brukman62a93432004-06-18 15:54:54 +0000[diff] [blame]57 <a name="cygwin">Building under Cygwin</a>
Chris Lattner6a615ad2004-06-01 18:13:05 +0000[diff] [blame]58</div>
59<!--=========================================================================-->
60
61<div class="doc_text">
John Criswell9e2485c2004-12-10 15:51:16 +0000[diff] [blame]62<p>If you are building LLVM and the GCC front-end under Cygwin, please note that
Chris Lattner6a615ad2004-06-01 18:13:05 +0000[diff] [blame]63the LLVM and GCC makefiles do not correctly handle spaces in paths. To deal
64with this issue, make sure that your LLVM and GCC source and build trees are
65located in a top-level directory (like <tt>/cygdrive/c/llvm</tt> and
66<tt>/cygdrive/c/llvm-cfrontend</tt>), not in a directory that contains a space
67(which includes your "home directory", because it lives under the "Documents
68and Settings" directory). We welcome patches to fix this issue.
69</p>
Reid Spencer24042362004-12-22 09:52:30 +0000[diff] [blame]70<p>It has been found that the GCC 3.3.3 compiler provided with recent Cygwin
71versions is incapable of compiling the LLVM CFE correctly. If your Cygwin
72installation includes GCC 3.3.3 we <i>strongly</i> recommend that you download
73GCC 3.4.3, build it separately, and use it for compiling LLVM CFE. This has been
74shown to work correctly.</p>
Reid Spencer72a59002004-12-23 19:49:54 +0000[diff] [blame]75<p>Some versions of Cygwin utilize an experimental version of GNU binutils that
76will cause the GNU <tt>ld</tt> linker to fail an assertion when linking
77components of the libstdc++. It is recommended that you replace the entire
78binutils package with version 2.15 such that "<tt>ld --version</tt>" responds
79with<br/>
80<pre>GNU ld version 2.15</pre>
81not with:<br/>
82<pre>GNU ld version 2.15.91 20040725</pre>
83</p></div>
Chris Lattner6a615ad2004-06-01 18:13:05 +0000[diff] [blame]84
Misha Brukman03ea9d42004-08-23 17:54:45 +0000[diff] [blame]85<!--=========================================================================-->
Reid Spencere0a7ddd2004-12-31 19:48:59 +0000[diff] [blame]86<div class="doc_subsection"><a name="aix">Building under AIX</a></div>
Misha Brukman03ea9d42004-08-23 17:54:45 +0000[diff] [blame]87<div class="doc_text">
John Criswell9e2485c2004-12-10 15:51:16 +0000[diff] [blame]88<p>If you are building LLVM and the GCC front-end under AIX, do NOT use GNU
Misha Brukman03ea9d42004-08-23 17:54:45 +0000[diff] [blame]89Binutils. They are not stable under AIX and may produce incorrect and/or
90invalid code. Instead, use the system assembler and linker.
91</p>
92</div>
93
Misha Brukman83bd33a2003-10-23 01:48:33 +0000[diff] [blame]94<!-- *********************************************************************** -->
95<div class="doc_section">
96 <a name="instructions">Instructions</a>
97</div>
98<!-- *********************************************************************** -->
99
100<div class="doc_text">
101<p>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]102<ol>
Reid Spencere0a7ddd2004-12-31 19:48:59 +0000[diff] [blame]103<li><p>Configure and build the LLVM libraries and tools. There are two ways to
104do this: either with <i>objdir</i> == <i>srcdir</i> or not. It is recommended
105that <i>srcdir</i> not be the same as <i>objdir</i>:</p>
106<ul>
107 <li>With <i>objdir</i> != <i>srcdir</i>:<pre>
108 % cd <i>objdir</i>
109 % <i>srcdir</i>/configure --prefix=/some/path/you/can/install/to [options...]
110 % gmake tools-only
111 </pre></li>
112 <li>With <i>objdir</i> == <i>srcdir</i>:<pre>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]113 % cd llvm
Reid Spencer0b4f4682004-12-01 05:15:44 +0000[diff] [blame]114 % ./configure --prefix=/some/path/you/can/install/to [options...]
Misha Brukmane7490532004-08-14 22:13:33 +0000[diff] [blame]115 % gmake tools-only
Reid Spencere0a7ddd2004-12-31 19:48:59 +0000[diff] [blame]116 </pre></li>
117</ul>
118<p>This will build all of the LLVM tools and libraries. The <tt>--prefix</tt>
119option defaults to /usr/local (per configure standards) but unless you are a
120system administrator, you probably won't be able to install LLVM there because
121of permissions. Specify a path into which LLVM can be installed (e.g.
122<tt>--prefix=/home/user/llvm</tt>).</p>
Reid Spencer0b4f4682004-12-01 05:15:44 +0000[diff] [blame]123</li>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]124
125<li><p>Add the directory containing the tools to your PATH.</p>
126<pre>
John Criswellc7f42642004-12-01 14:12:30 +0000[diff] [blame]127 % set path = ( `cd llvm/Debug/bin &amp;&amp; pwd` $path )
Misha Brukman83bd33a2003-10-23 01:48:33 +0000[diff] [blame]128</pre></li>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]129
Chris Lattnerb1241b02005-02-11 21:17:26 +0000[diff] [blame]130<li><p>Unpack the C/C++ front-end source into cfrontend/src, either by
131 untar'ing an llvm-gcc.tar.gz file or checking out CVS into this
132 directory.</p></li>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]133
Misha Brukmane7490532004-08-14 22:13:33 +0000[diff] [blame]134<li><p>Make "build" and "install" directories as siblings of the "src" tree.</p>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]135<pre>
136 % pwd
137 /usr/local/example/cfrontend/src
138 % cd ..
139 % mkdir build install
140 % set CFEINSTALL = `pwd`/install
Misha Brukman83bd33a2003-10-23 01:48:33 +0000[diff] [blame]141</pre></li>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]142
Chris Lattner6a615ad2004-06-01 18:13:05 +0000[diff] [blame]143
John Criswell9e2485c2004-12-10 15:51:16 +0000[diff] [blame]144<li><p>Configure, build, and install the GCC front-end:</p>
John Criswell55072842003-12-08 19:59:14 +0000[diff] [blame]145
146<p>
Misha Brukman31b24322004-06-21 14:00:44 +0000[diff] [blame]147<b>Linux/x86:</b><br>
Misha Brukmana964fe52004-08-09 18:37:04 +0000[diff] [blame]148<b>MacOS X/PowerPC</b> (requires dlcompat library):<br>
149<b>AIX/PowerPC:</b>
John Criswell55072842003-12-08 19:59:14 +0000[diff] [blame]150</p>
151
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]152<pre>
153 % cd build
Misha Brukmana964fe52004-08-09 18:37:04 +0000[diff] [blame]154 % ../src/configure --prefix=$CFEINSTALL --disable-threads --disable-nls \
Reid Spencer4ac306502004-12-22 06:40:29 +0000[diff] [blame]155 --disable-shared --enable-languages=c,c++ --program-prefix=llvm-
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]156 % gmake all; gmake install
157</pre>
158
Misha Brukman62a93432004-06-18 15:54:54 +0000[diff] [blame]159<p><b>Cygwin/x86:</b></p>
Chris Lattner893c26a2004-06-02 19:27:50 +0000[diff] [blame]160
161<pre>
162 % cd build
Misha Brukmana964fe52004-08-09 18:37:04 +0000[diff] [blame]163 % ../src/configure --prefix=$CFEINSTALL --disable-threads --disable-nls \
Reid Spencer4ac306502004-12-22 06:40:29 +0000[diff] [blame]164 --disable-shared --enable-languages=c,c++ --disable-c-mbchar \
165 --program-prefix=llvm-
Chris Lattner893c26a2004-06-02 19:27:50 +0000[diff] [blame]166 % gmake all; gmake install
167</pre>
168
169<p><b>Solaris/SPARC:</b></p>
John Criswell55072842003-12-08 19:59:14 +0000[diff] [blame]170
171<p>
John Criswell6e35eda2004-11-29 21:46:29 +0000[diff] [blame]172For Solaris/SPARC, LLVM only supports the SPARC V9 architecture. Therefore,
173the configure command line should specify sparcv9, as shown below. Also,
Brian Gaeke7e9bd802004-01-28 20:54:41 +0000[diff] [blame]174note that Solaris has trouble with various wide (multibyte) character
175functions from C as referenced from C++, so we typically configure with
176--disable-c-mbchar (cf. <a href="http://llvm.cs.uiuc.edu/PR206">Bug 206</a>).
John Criswell55072842003-12-08 19:59:14 +0000[diff] [blame]177</p>
178
179<pre>
180 % cd build
Brian Gaeke7e9bd802004-01-28 20:54:41 +0000[diff] [blame]181 % ../src/configure --prefix=$CFEINSTALL --disable-threads --disable-nls \
182 --disable-shared --enable-languages=c,c++ --host=sparcv9-sun-solaris2.8 \
Reid Spencer4ac306502004-12-22 06:40:29 +0000[diff] [blame]183 --disable-c-mbchar --program-prefix=llvm-
Brian Gaeke7e9bd802004-01-28 20:54:41 +0000[diff] [blame]184 % gmake all; gmake install
John Criswell55072842003-12-08 19:59:14 +0000[diff] [blame]185</pre>
186
Chris Lattnere38c6282003-10-23 03:55:23 +0000[diff] [blame]187 <p><b>Common Problem:</b> You may get error messages regarding the fact
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]188 that LLVM does not support inline assembly. Here are two common
189 fixes:</p>
190
191 <ul>
192 <li><p><b>Fix 1:</b> If you have system header files that include
193 inline assembly, you may have to modify them to remove the inline
John Criswell9e2485c2004-12-10 15:51:16 +0000[diff] [blame]194 assembly and install the modified versions in
Chris Lattner37874052004-10-06 03:13:47 +0000[diff] [blame]195 <code>$CFEINSTALL/lib/gcc/<i>target-triplet</i>/3.4-llvm/include</code>.</li>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]196
197 <li><b>Fix 2:</b> If you are building the C++ front-end on a CPU we
198 haven't tried yet, you will probably have to edit the appropriate
199 version of atomicity.h under
200 <code>src/libstdc++-v3/config/cpu/<i>name-of-cpu</i>/atomicity.h</code>
Misha Brukman6a2b3102004-05-12 18:49:47 +0000[diff] [blame]201 and apply a patch so that it does not use inline assembly.</li>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]202 </ul>
203
John Criswell9e2485c2004-12-10 15:51:16 +0000[diff] [blame]204 <p><b>Porting to a new architecture:</b> If you are porting the front-end
205 to a new architecture or compiling in a configuration that we have
206 not tried previously, there are probably several changes you will have to make
207 to the GCC target to get it to work correctly. These include:<p>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]208
209 <ul>
John Criswell6e35eda2004-11-29 21:46:29 +0000[diff] [blame]210 <li>Often targets include special assembler or linker flags which
Chris Lattnere38c6282003-10-23 03:55:23 +0000[diff] [blame]211 <tt>gccas</tt>/<tt>gccld</tt> does not understand. In general, these can
212 just be removed.</li>
213 <li>LLVM currently does not support any floating point values other than
214 32-bit and 64-bit IEEE floating point. The primary effect of this is
215 that you may have to map "long double" onto "double".</li>
216 <li>The profiling hooks in GCC do not apply at all to the LLVM front-end.
217 These may need to be disabled.</li>
218 <li>No inline assembly for position independent code. At the LLVM level,
219 everything is position independent.</li>
220 <li>We handle <tt>.init</tt> and <tt>.fini</tt> differently.</li>
Chris Lattner13964e02003-10-24 16:02:34 +0000[diff] [blame]221 <li>You may have to disable multilib support in your target. Using multilib
222 support causes the GCC compiler driver to add a lot of "<tt>-L</tt>"
223 options to the link line, which do not relate to LLVM and confuse
224 <tt>gccld</tt>. To disable multilibs, delete any
225 <tt>MULTILIB_OPTIONS</tt> lines from your target files.</li>
Chris Lattnere38c6282003-10-23 03:55:23 +0000[diff] [blame]226 <li>Did we mention that we don't support inline assembly? You'll probably
227 have to add some fixinclude hacks to disable it in the system
228 headers.</li>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]229 </ul>
Misha Brukman83bd33a2003-10-23 01:48:33 +0000[diff] [blame]230</li>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]231
Reid Spencer4ac306502004-12-22 06:40:29 +0000[diff] [blame]232<li><p>Put <tt>$CFEINSTALL/bin</tt> into your <tt>PATH</tt> environment
233variable.</p>
234 <ul>
235 <li>sh: <tt>export PATH=$CFEINSTALL/bin:$PATH</tt></li>
236 <li>csh: <tt>setenv PATH $CFEINSTALL/bin:$PATH</tt></li>
Reid Spencer4ac306502004-12-22 06:40:29 +0000[diff] [blame]237 </ul>
238</li>
239
Chris Lattner6a615ad2004-06-01 18:13:05 +0000[diff] [blame]240<li><p>Go back into the LLVM source tree proper. Rerun configure, using
Reid Spencer4ac306502004-12-22 06:40:29 +0000[diff] [blame]241the same options as the last time. This will cause the configuration to now find
242the newly built llvm-gcc and llvm-g++ executables. </p></li>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]243
Chris Lattner6a615ad2004-06-01 18:13:05 +0000[diff] [blame]244<li><p>Rebuild your CVS tree. This shouldn't cause the whole thing to be
245 rebuilt, but it should build the runtime libraries. After the tree is
John Criswell9e2485c2004-12-10 15:51:16 +0000[diff] [blame]246 built, install the runtime libraries into your GCC front-end build tree.
Chris Lattner6a615ad2004-06-01 18:13:05 +0000[diff] [blame]247 These are the commands you need.</p>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]248<pre>
Chris Lattner6a615ad2004-06-01 18:13:05 +0000[diff] [blame]249 % gmake
Reid Spencer3149ba72004-12-04 08:13:20 +0000[diff] [blame]250 % gmake -C runtime install-bytecode
Misha Brukman83bd33a2003-10-23 01:48:33 +0000[diff] [blame]251</pre></li>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]252
Reid Spencerf99e59a2004-11-25 17:13:17 +0000[diff] [blame]253<li><p>Optionally, build a symbol table for the newly installed runtime
Reid Spencer4ac306502004-12-22 06:40:29 +0000[diff] [blame]254libraries. Although this step is optional, you are strongly encouraged to
255do this as the symbol tables will make a significant difference in your
256link times. Use the <tt>llvm-ranlib</tt> tool to do this, as follows:</p>
Reid Spencerf99e59a2004-11-25 17:13:17 +0000[diff] [blame]257<pre>
258 % cd $CFEINSTALL/lib
259 % llvm-ranlib libiberty.a
260 % llvm-ranlib libstdc++.a
Chris Lattner302ed2a2004-12-01 04:16:29 +0000[diff] [blame]261 % llvm-ranlib libsupc++.a
Reid Spencercfaf80c2004-12-22 16:19:05 +0000[diff] [blame]262 % cd $CFEINSTALL/lib/gcc/<i>target-triplet</i>/3.4-llvm
Reid Spencerf99e59a2004-11-25 17:13:17 +0000[diff] [blame]263 % llvm-ranlib libgcc.a
264 % llvm-ranlib libgcov.a
265</pre>
266
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]267<li><p>Test the newly-installed C frontend by one or more of the
268following means:</p>
269 <ul>
Reid Spencer4ac306502004-12-22 06:40:29 +0000[diff] [blame]270 <li> running the feature &amp; regression tests via <tt>make check</tt></li>
Chris Lattnere38c6282003-10-23 03:55:23 +0000[diff] [blame]271 <li> compiling and running a "hello, LLVM" program in C and C++.</li>
John Criswell9e2485c2004-12-10 15:51:16 +0000[diff] [blame]272 <li> running the tests found in the <tt>llvm-test</tt> CVS module</li>
Misha Brukman6a2b3102004-05-12 18:49:47 +0000[diff] [blame]273 </ul></li>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]274</ol>
Misha Brukman83bd33a2003-10-23 01:48:33 +0000[diff] [blame]275</div>
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]276
277<!-- *********************************************************************** -->
John Criswelld000e1d2003-12-18 16:43:17 +0000[diff] [blame]278<div class="doc_section">
279 <a name="license">License Information</a>
280</div>
281
282<div class="doc_text">
283<p>
284The LLVM GCC frontend is licensed to you under the GNU General Public License
285and the GNU Lesser General Public License. Please see the files COPYING and
286COPYING.LIB for more details.
287</p>
288
289<p>
290The software also has the following additional copyrights:
291</p>
292
293<pre>
John Criswelle3602102004-03-12 18:02:17 +0000[diff] [blame]294
295Copyright (c) 2003, 2004 University of Illinois at Urbana-Champaign.
296All rights reserved.
297
298Developed by:
299
300 LLVM Team
301
302 University of Illinois at Urbana-Champaign
303
304 http://llvm.cs.uiuc.edu
305
306THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
307IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
308FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
309CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
310LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
311OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE
312SOFTWARE.
313
John Criswelld000e1d2003-12-18 16:43:17 +0000[diff] [blame]314Copyright (c) 1994
315Hewlett-Packard Company
316
317Permission to use, copy, modify, distribute and sell this software
318and its documentation for any purpose is hereby granted without fee,
319provided that the above copyright notice appear in all copies and
320that both that copyright notice and this permission notice appear
321in supporting documentation. Hewlett-Packard Company makes no
322representations about the suitability of this software for any
323purpose. It is provided "as is" without express or implied warranty.
324
325Copyright (c) 1996, 1997, 1998, 1999
326Silicon Graphics Computer Systems, Inc.
327
328Permission to use, copy, modify, distribute and sell this software
329and its documentation for any purpose is hereby granted without fee,
330provided that the above copyright notice appear in all copies and
331that both that copyright notice and this permission notice appear
332in supporting documentation. Silicon Graphics makes no
333representations about the suitability of this software for any
334purpose. It is provided "as is" without express or implied warranty.
335</pre>
336</div>
337
338<!-- *********************************************************************** -->
Brian Gaeke46079d22003-10-21 21:58:38 +0000[diff] [blame]339
Misha Brukmanb9e57892003-10-28 21:09:29 +0000[diff] [blame]340<hr>
Misha Brukman6a2b3102004-05-12 18:49:47 +0000[diff] [blame]341<address>
342 <a href="http://jigsaw.w3.org/css-validator/check/referer"><img
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347 Brian Gaeke<br>
348 <a href="http://llvm.cs.uiuc.edu">LLVM Compiler Infrastructure</a><br>
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