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gerrit-public.fairphone.software / fp2-dev / platform / external / llvm / caf0634d075f3993f96e39d4d49f3a8869649ce3 / . / docs / ReleaseNotes.html
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Chris Lattnercaf06342007-05-09 04:58:11 +0000[diff] [blame^]7 <title>LLVM 2.0 Release Notes</title>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]8</head>
9<body>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]10
Chris Lattnercaf06342007-05-09 04:58:11 +0000[diff] [blame^]11<div class="doc_title">LLVM 2.0 Release Notes</div>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]12
13<ol>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]14 <li><a href="#intro">Introduction</a></li>
15 <li><a href="#whatsnew">What's New?</a></li>
Chris Lattner4b538b92004-04-30 22:17:12 +0000[diff] [blame]16 <li><a href="GettingStarted.html">Installation Instructions</a></li>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]17 <li><a href="#portability">Portability and Supported Platforms</a></li>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]18 <li><a href="#knownproblems">Known Problems</a>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]19 <li><a href="#additionalinfo">Additional Information</a></li>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]20</ol>
21
Chris Lattner7911ce22004-05-23 21:07:27 +0000[diff] [blame]22<div class="doc_author">
Chris Lattnerc463b272005-10-29 07:07:09 +0000[diff] [blame]23 <p>Written by the <a href="http://llvm.org">LLVM Team</a><p>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]24</div>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]25
26<!-- *********************************************************************** -->
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]27<div class="doc_section">
28 <a name="intro">Introduction</a>
29</div>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]30<!-- *********************************************************************** -->
31
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]32<div class="doc_text">
33
34<p>This document contains the release notes for the LLVM compiler
Chris Lattnercaf06342007-05-09 04:58:11 +0000[diff] [blame^]35infrastructure, release 2.0. Here we describe the status of LLVM, including any
36known problems and major improvements from the previous release. All LLVM
37releases may be downloaded from the <a href="http://llvm.org/releases/">LLVM
38releases web site</a>.
Chris Lattner19092612003-10-02 16:38:05 +0000[diff] [blame]39
Chris Lattner7506b1d2004-12-07 08:04:13 +0000[diff] [blame]40<p>For more information about LLVM, including information about the latest
Chris Lattnerc463b272005-10-29 07:07:09 +0000[diff] [blame]41release, please check out the <a href="http://llvm.org/">main LLVM
Chris Lattner47ad72c2003-10-07 21:38:31 +0000[diff] [blame]42web site</a>. If you have questions or comments, the <a
43href="http://mail.cs.uiuc.edu/mailman/listinfo/llvmdev">LLVM developer's mailing
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]44list</a> is a good place to send them.</p>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]45
Chris Lattner78bf32b2004-12-09 22:22:58 +0000[diff] [blame]46<p>Note that if you are reading this file from CVS or the main LLVM web page,
47this document applies to the <i>next</i> release, not the current one. To see
48the release notes for the current or previous releases, see the <a
Chris Lattnerc463b272005-10-29 07:07:09 +0000[diff] [blame]49href="http://llvm.org/releases/">releases page</a>.</p>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]50
51</div>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]52
53<!-- *********************************************************************** -->
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]54<div class="doc_section">
55 <a name="whatsnew">What's New?</a>
56</div>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]57<!-- *********************************************************************** -->
58
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]59<div class="doc_text">
60
Chris Lattnercaf06342007-05-09 04:58:11 +0000[diff] [blame^]61<p>This is the eleventh public release of the LLVM Compiler Infrastructure.
62Being the first major release since 1.0, we took this as an opportunity to
63break backwards compatibility with the LLVM 1.x bytecode and .ll file format.
64If you have LLVM 1.9 .ll files that you would like to upgrade to LLVM 2.x, we
65recommend the use of the stand alone <a href=#llvm-upgrade">llvm-upgrade</a>
66tool. We intend to keep compatibility with .ll and .bc formats within the 2.x
67release series.</p>
68
69<p>Note that while
70 This
71release
72incorporates a large number of enhancements, new features, and bug
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]73fixes. We recommend that all users of previous LLVM versions upgrade.
Chris Lattner44c933e2006-04-18 06:18:36 +0000[diff] [blame]74</p>
Chris Lattnera5099962003-12-06 20:22:41 +0000[diff] [blame]75
Chris Lattner80453c92004-05-24 04:50:25 +0000[diff] [blame]76</div>
77
Chris Lattnera5099962003-12-06 20:22:41 +0000[diff] [blame]78<!--=========================================================================-->
Chris Lattner8a458762005-05-15 05:44:51 +0000[diff] [blame]79<div class="doc_subsection">
Chris Lattnercaf06342007-05-09 04:58:11 +0000[diff] [blame^]80<a name="newfeatures">New Features in LLVM 2.0</a>
Chris Lattner44c933e2006-04-18 06:18:36 +0000[diff] [blame]81</div>
82
Chris Lattner738bd302006-04-18 06:32:08 +0000[diff] [blame]83<!--_________________________________________________________________________-->
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]84<div class="doc_subsubsection"><a name="optimizer">Optimizer
85Improvements</a></div>
Chris Lattner738bd302006-04-18 06:32:08 +0000[diff] [blame]86<div class="doc_text">
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]87<p>The mid-level optimizer is now faster and produces better code in many cases.
88 Significant changes include:</p>
89
90<ul>
Chris Lattnercaf06342007-05-09 04:58:11 +0000[diff] [blame^]91<li></li>
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]92</ul>
93
Chris Lattner738bd302006-04-18 06:32:08 +0000[diff] [blame]94</div>
95
Chris Lattner1c1a85c2006-04-19 04:02:47 +0000[diff] [blame]96<!--_________________________________________________________________________-->
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]97<div class="doc_subsubsection"><a name="codegen">Code
98Generator Enhancements</a></div>
99
Chris Lattner1c1a85c2006-04-19 04:02:47 +0000[diff] [blame]100<div class="doc_text">
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]101<p>
102The LLVM Target-Independent code generator now supports more target features and
103optimizes many cases more aggressively. New features include:
104</p>
105
106<ul>
Chris Lattnercaf06342007-05-09 04:58:11 +0000[diff] [blame^]107<li></li>
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]108</ul>
109
110<p>In addition, the LLVM target description format has itself been extended in
111 several ways:</p>
112
113<ul>
Chris Lattnercaf06342007-05-09 04:58:11 +0000[diff] [blame^]114<li></li>
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]115</ul>
116
117<p>Further, several significant target-specific enhancements are included in
Chris Lattnercaf06342007-05-09 04:58:11 +0000[diff] [blame^]118LLVM 2.0:</p>
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]119
120<ul>
Chris Lattnercaf06342007-05-09 04:58:11 +0000[diff] [blame^]121<li></li>
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]122</ul>
123
Chris Lattner1c1a85c2006-04-19 04:02:47 +0000[diff] [blame]124</div>
Chris Lattner44c933e2006-04-18 06:18:36 +0000[diff] [blame]125
126<!--_________________________________________________________________________-->
Chris Lattnerd9ea0172006-08-08 17:27:28 +0000[diff] [blame]127<div class="doc_subsubsection"><a name="other">Other Improvements</a></div>
Chris Lattner58504a62006-02-05 06:39:36 +0000[diff] [blame]128<div class="doc_text">
Chris Lattnercaf06342007-05-09 04:58:11 +0000[diff] [blame^]129<p></p>
Chris Lattnerd9ea0172006-08-08 17:27:28 +0000[diff] [blame]130
131<p>More specific changes include:</p>
132
Chris Lattner58504a62006-02-05 06:39:36 +0000[diff] [blame]133<ul>
Chris Lattnercaf06342007-05-09 04:58:11 +0000[diff] [blame^]134<li></li>
Chris Lattner58504a62006-02-05 06:39:36 +0000[diff] [blame]135</ul>
136</div>
John Criswelle531ec52005-06-29 16:22:34 +0000[diff] [blame]137
Chris Lattnerc5d658a2006-03-03 00:34:26 +0000[diff] [blame]138
139
Chris Lattner19092612003-10-02 16:38:05 +0000[diff] [blame]140<!-- *********************************************************************** -->
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]141<div class="doc_section">
142 <a name="portability">Portability and Supported Platforms</a>
143</div>
Chris Lattner19092612003-10-02 16:38:05 +0000[diff] [blame]144<!-- *********************************************************************** -->
145
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]146<div class="doc_text">
147
John Criswell0b5b5e92004-12-08 20:35:47 +0000[diff] [blame]148<p>LLVM is known to work on the following platforms:</p>
Chris Lattner4654bdb2004-06-01 18:22:41 +0000[diff] [blame]149
150<ul>
Reid Spencer00812e22005-05-17 02:47:27 +0000[diff] [blame]151 <li>Intel and AMD machines running Red Hat Linux, Fedora Core and FreeBSD
152 (and probably other unix-like systems).</li>
Chris Lattner7ea41e32006-08-09 04:10:32 +0000[diff] [blame]153<li>Intel and AMD machines running on Win32 using MinGW libraries (native)</li>
Chris Lattner4654bdb2004-06-01 18:22:41 +0000[diff] [blame]154<li>Sun UltraSPARC workstations running Solaris 8.</li>
Chris Lattner7506b1d2004-12-07 08:04:13 +0000[diff] [blame]155<li>Intel and AMD machines running on Win32 with the Cygwin libraries (limited
156 support is available for native builds with Visual C++).</li>
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]157<li>PowerPC and X86-based Mac OS X systems, running 10.2 and above in 32-bit and
158 64-bit modes.</li>
John Criswell9321fa82005-05-13 20:28:15 +0000[diff] [blame]159<li>Alpha-based machines running Debian GNU/Linux.</li>
160<li>Itanium-based machines running Linux and HP-UX.</li>
Chris Lattner4654bdb2004-06-01 18:22:41 +0000[diff] [blame]161</ul>
162
Brian Gaekeb0fd7612004-05-09 05:28:35 +0000[diff] [blame]163<p>The core LLVM infrastructure uses
164<a href="http://www.gnu.org/software/autoconf/">GNU autoconf</a> to adapt itself
165to the machine and operating system on which it is built. However, minor
166porting may be required to get LLVM to work on new platforms. We welcome your
167portability patches and reports of successful builds or error messages.</p>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]168
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]169</div>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]170
171<!-- *********************************************************************** -->
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]172<div class="doc_section">
173 <a name="knownproblems">Known Problems</a>
174</div>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]175<!-- *********************************************************************** -->
176
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]177<div class="doc_text">
178
179<p>This section contains all known problems with the LLVM system, listed by
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]180component. As new problems are discovered, they will be added to these
Chris Lattner5eccca42003-12-12 21:22:16 +0000[diff] [blame]181sections. If you run into a problem, please check the <a
Chris Lattnerc463b272005-10-29 07:07:09 +0000[diff] [blame]182href="http://llvm.org/bugs/">LLVM bug database</a> and submit a bug if
Chris Lattner5eccca42003-12-12 21:22:16 +0000[diff] [blame]183there isn't already one.</p>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]184
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]185</div>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]186
Chris Lattnerf5ee1702004-03-14 02:03:02 +0000[diff] [blame]187<!-- ======================================================================= -->
188<div class="doc_subsection">
189 <a name="experimental">Experimental features included with this release</a>
190</div>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]191
Chris Lattnerf5ee1702004-03-14 02:03:02 +0000[diff] [blame]192<div class="doc_text">
193
Misha Brukman6df9e2c2004-05-12 21:46:05 +0000[diff] [blame]194<p>The following components of this LLVM release are either untested, known to
195be broken or unreliable, or are in early development. These components should
196not be relied on, and bugs should not be filed against them, but they may be
197useful to some people. In particular, if you would like to work on one of these
Chris Lattner49e693e2006-08-09 04:08:52 +0000[diff] [blame]198components, please contact us on the <a href="http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev">LLVMdev list</a>.</p>
Chris Lattnerf5ee1702004-03-14 02:03:02 +0000[diff] [blame]199
200<ul>
Chris Lattner44c933e2006-04-18 06:18:36 +0000[diff] [blame]201<li>The <tt>-cee</tt> pass is known to be buggy, and may be removed in in a
202 future release.</li>
Chris Lattner58504a62006-02-05 06:39:36 +0000[diff] [blame]203<li>The IA64 code generator is experimental.</li>
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]204<li>The ARM code generator is experimental.</li>
Chris Lattnerc463b272005-10-29 07:07:09 +0000[diff] [blame]205<li>The Alpha JIT is experimental.</li>
Chris Lattner44c933e2006-04-18 06:18:36 +0000[diff] [blame]206<li>"<tt>-filetype=asm</tt>" (the default) is the only supported value for the
207 <tt>-filetype</tt> llc option.</li>
Chris Lattnerf5ee1702004-03-14 02:03:02 +0000[diff] [blame]208</ul>
209
210</div>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]211
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]212<!-- ======================================================================= -->
213<div class="doc_subsection">
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]214 <a name="x86-be">Known problems with the X86 back-end</a>
John Criswellc0c186d2005-11-08 21:11:33 +0000[diff] [blame]215</div>
216
217<div class="doc_text">
218
219<ul>
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]220<li>The X86 backend does not yet support <a href="http://llvm.org/PR879">inline
Chris Lattnercaf06342007-05-09 04:58:11 +0000[diff] [blame^]221 assembly that uses the X86 floating point stack</a>.</li>
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]222</ul>
223
224</div>
225
226<!-- ======================================================================= -->
227<div class="doc_subsection">
228 <a name="ppc-be">Known problems with the PowerPC back-end</a>
229</div>
230
231<div class="doc_text">
232
233<ul>
234<li><a href="http://llvm.org/PR642">PowerPC backend does not correctly
235implement ordered FP comparisons</a>.</li>
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]236</ul>
237
238</div>
239
240<!-- ======================================================================= -->
241<div class="doc_subsection">
242 <a name="sparc-be">Known problems with the SPARC back-end</a>
243</div>
244
245<div class="doc_text">
246
247<ul>
248<li>The SPARC backend only supports the 32-bit SPARC ABI (-m32), it does not
249 support the 64-bit SPARC ABI (-m64).</li>
250</ul>
251
252</div>
253
254<!-- ======================================================================= -->
255<div class="doc_subsection">
256 <a name="c-be">Known problems with the C back-end</a>
257</div>
258
259<div class="doc_text">
260
261<ul>
262
263<li>The C back-end produces code that violates the ANSI C Type-Based Alias
264Analysis rules. As such, special options may be necessary to compile the code
265(for example, GCC requires the <tt>-fno-strict-aliasing</tt> option). This
266problem probably cannot be fixed.</li>
267
268<li><a href="http://llvm.org/PR56">Zero arg vararg functions are not
269supported</a>. This should not affect LLVM produced by the C or C++
270frontends.</li>
271
272<li>The C backend does not correctly implement the <a
Reid Spencer62ea8b62007-04-04 04:14:31 +0000[diff] [blame]273href="LangRef.html#int_stacksave"><tt>llvm.stacksave</tt></a> or
274<a href="LangRef.html#int_stackrestore"><tt>llvm.stackrestore</tt></a>
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]275intrinsics. This means that some code compiled by it can run out of stack
276space if they depend on these (e.g. C99 varargs).</li>
277
278<li><a href="http://llvm.org/PR802">The C backend does not support inline
279 assembly code</a>.</li>
280</ul>
281
282</div>
283
284<!-- ======================================================================= -->
285<div class="doc_subsection">
286 <a name="alpha-be">Known problems with the Alpha back-end</a>
287</div>
288
289<div class="doc_text">
290
291<ul>
292
293<li>On 21164s, some rare FP arithmetic sequences which may trap do not have the
294appropriate nops inserted to ensure restartability.</li>
295
John Criswellc0c186d2005-11-08 21:11:33 +0000[diff] [blame]296</ul>
297</div>
298
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]299<!-- ======================================================================= -->
300<div class="doc_subsection">
301 <a name="ia64-be">Known problems with the IA64 back-end</a>
302</div>
303
304<div class="doc_text">
305
306<ul>
307
308<li>C++ programs are likely to fail on IA64, as calls to <tt>setjmp</tt> are
309made where the argument is not 16-byte aligned, as required on IA64. (Strictly
310speaking this is not a bug in the IA64 back-end; it will also be encountered
311when building C++ programs using the C back-end.)</li>
312
313<li>The C++ front-end does not use <a href="http://llvm.org/PR406">IA64
314ABI compliant layout of v-tables</a>. In particular, it just stores function
315pointers instead of function descriptors in the vtable. This bug prevents
316mixing C++ code compiled with LLVM with C++ objects compiled by other C++
317compilers.</li>
318
319<li>There are a few ABI violations which will lead to problems when mixing LLVM
320output with code built with other compilers, particularly for floating-point
321programs.</li>
322
323<li>Defining vararg functions is not supported (but calling them is ok).</li>
324
Chris Lattnercaf06342007-05-09 04:58:11 +0000[diff] [blame^]325<li>The Itanium backend has bitrotted somewhat.</li>
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]326</ul>
327
328</div>
329
330<!-- ======================================================================= -->
331<div class="doc_subsection">
332 <a name="arm-be">Known problems with the ARM back-end</a>
333</div>
334
335<div class="doc_text">
336
337<ul>
338<li>The ARM backend is currently in early development stages, it is not
339ready for production use.</li>
340</ul>
341
342</div>
John Criswellc0c186d2005-11-08 21:11:33 +0000[diff] [blame]343
344<!-- ======================================================================= -->
345<div class="doc_subsection">
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]346 <a name="core">Known problems with the LLVM Core</a>
347</div>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]348
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]349<div class="doc_text">
350
351<ul>
Misha Brukman109d9e82005-03-30 19:14:24 +0000[diff] [blame]352 <li>In the JIT, <tt>dlsym()</tt> on a symbol compiled by the JIT will not
353 work.</li>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]354</ul>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]355</div>
356
357<!-- ======================================================================= -->
358<div class="doc_subsection">
359 <a name="c-fe">Known problems with the C front-end</a>
360</div>
Chris Lattner47588f92003-10-02 05:07:23 +0000[diff] [blame]361
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]362<!-- _______________________________________________________________________ -->
Chris Lattnerb40efb32003-12-14 05:03:43 +0000[diff] [blame]363<div class="doc_subsubsection">Bugs</div>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]364
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]365<div class="doc_text">
Chris Lattnerc5d658a2006-03-03 00:34:26 +0000[diff] [blame]366
Chris Lattner44c933e2006-04-18 06:18:36 +0000[diff] [blame]367<p>
Chris Lattnerd9ea0172006-08-08 17:27:28 +0000[diff] [blame]368
369<p>llvm-gcc4 is far more stable and produces better code than llvm-gcc3, but
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]370does not currently support <a href="http://llvm.org/PR869">Link-Time
371Optimization</a> or <a href="http://llvm.org/PR870">C++ Exception Handling</a>,
Chris Lattnerd9ea0172006-08-08 17:27:28 +0000[diff] [blame]372which llvm-gcc3 does.</p>
373
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]374<p>llvm-gcc4 does not support the <a href="http://llvm.org/PR947">GCC indirect
375goto extension</a>, but llvm-gcc3 does.</p>
376
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]377</div>
378
379<!-- _______________________________________________________________________ -->
380<div class="doc_subsubsection">
381 Notes
382</div>
383
384<div class="doc_text">
385
386<ul>
387
Chris Lattnere01fcfb2003-10-27 18:30:37 +0000[diff] [blame]388<li>"long double" is transformed by the front-end into "double". There is no
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]389support for floating point data types of any size other than 32 and 64
390bits.</li>
391
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]392<li>Although many GCC extensions are supported, some are not. In particular,
393 the following extensions are known to <b>not be</b> supported:
394 <ol>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]395 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Local-Labels.html#Local%20Labels">Local Labels</a>: Labels local to a block.</li>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]396 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Nested-Functions.html#Nested%20Functions">Nested Functions</a>: As in Algol and Pascal, lexical scoping of functions.</li>
397 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Constructing-Calls.html#Constructing%20Calls">Constructing Calls</a>: Dispatching a call to another function.</li>
Tanya Lattner014e5f52004-12-08 18:25:34 +0000[diff] [blame]398 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Thread_002dLocal.html">Thread-Local</a>: Per-thread variables.</li>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]399 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Pragmas.html#Pragmas">Pragmas</a>: Pragmas accepted by GCC.</li>
Misha Brukmane0c891c2003-11-22 01:00:11 +0000[diff] [blame]400 </ol>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]401
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]402 <p>The following GCC extensions are <b>partially</b> supported. An ignored
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]403 attribute means that the LLVM compiler ignores the presence of the attribute,
404 but the code should still work. An unsupported attribute is one which is
John Criswelld000e1d2003-12-18 16:43:17 +0000[diff] [blame]405 ignored by the LLVM compiler and will cause a different interpretation of
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]406 the program.</p>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]407
408 <ol>
409 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Variable-Length.html#Variable%20Length">Variable Length</a>:
410 Arrays whose length is computed at run time.<br>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]411 Supported, but allocated stack space is not freed until the function returns (noted above).</li>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]412
413 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html#Function%20Attributes">Function Attributes</a>:
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]414
John Criswelld000e1d2003-12-18 16:43:17 +0000[diff] [blame]415 Declaring that functions have no side effects or that they can never
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]416 return.<br>
417
Anton Korobeynikov9413de32006-11-18 08:04:48 +0000[diff] [blame]418 <b>Supported:</b> <tt>constructor</tt>, <tt>destructor</tt>,
419 <tt>deprecated</tt>, <tt>fastcall</tt>, <tt>format</tt>,
420 <tt>format_arg</tt>, <tt>non_null</tt>, <tt>noreturn</tt>,
Anton Korobeynikov8cea37b2007-01-23 12:35:46 +0000[diff] [blame]421 <tt>section</tt>, <tt>stdcall</tt>, <tt>unused</tt>, <tt>used</tt>,
422 <tt>visibility</tt>, <tt>warn_unused_result</tt>, <tt>weak</tt><br>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]423
John Criswell0b5b5e92004-12-08 20:35:47 +0000[diff] [blame]424 <b>Ignored:</b> <tt>noinline</tt>,
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]425 <tt>always_inline</tt>, <tt>pure</tt>, <tt>const</tt>, <tt>nothrow</tt>,
426 <tt>malloc</tt>, <tt>no_instrument_function</tt>, <tt>cdecl</tt><br>
427
Anton Korobeynikov8cea37b2007-01-23 12:35:46 +0000[diff] [blame]428 <b>Unsupported:</b> <tt>alias</tt>, <tt>regparm</tt>, all other target specific
Anton Korobeynikov9413de32006-11-18 08:04:48 +0000[diff] [blame]429 attributes</li>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]430
431 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Variable-Attributes.html#Variable%20Attributes">Variable Attributes</a>:
432 Specifying attributes of variables.<br>
433 <b>Supported:</b> <tt>cleanup</tt>, <tt>common</tt>, <tt>nocommon</tt>,
Anton Korobeynikov8cea37b2007-01-23 12:35:46 +0000[diff] [blame]434 <tt>deprecated</tt>, <tt>dllimport</tt>, <tt>dllexport</tt>,
435 <tt>section</tt>, <tt>transparent_union</tt>, <tt>unused</tt>,
436 <tt>used</tt>, <tt>weak</tt><br>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]437
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]438 <b>Unsupported:</b> <tt>aligned</tt>, <tt>mode</tt>, <tt>packed</tt>,
Anton Korobeynikov8cea37b2007-01-23 12:35:46 +0000[diff] [blame]439 <tt>shared</tt>, <tt>tls_model</tt>,
440 <tt>vector_size</tt>, all target specific attributes.
Anton Korobeynikov9413de32006-11-18 08:04:48 +0000[diff] [blame]441 </li>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]442
Misha Brukmanc4b7bee2003-12-12 04:37:31 +0000[diff] [blame]443 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Type-Attributes.html#Type%20Attributes">Type Attributes</a>: Specifying attributes of types.<br>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]444 <b>Supported:</b> <tt>transparent_union</tt>, <tt>unused</tt>,
Misha Brukmanc4b7bee2003-12-12 04:37:31 +0000[diff] [blame]445 <tt>deprecated</tt>, <tt>may_alias</tt><br>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]446
447 <b>Unsupported:</b> <tt>aligned</tt>, <tt>packed</tt>,
448 all target specific attributes.</li>
449
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]450 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Other-Builtins.html#Other%20Builtins">Other Builtins</a>:
451 Other built-in functions.<br>
452 We support all builtins which have a C language equivalent (e.g.,
453 <tt>__builtin_cos</tt>), <tt>__builtin_alloca</tt>,
454 <tt>__builtin_types_compatible_p</tt>, <tt>__builtin_choose_expr</tt>,
Chris Lattnerceebeb62004-06-18 06:26:29 +0000[diff] [blame]455 <tt>__builtin_constant_p</tt>, and <tt>__builtin_expect</tt>
456 (currently ignored). We also support builtins for ISO C99 floating
Chris Lattner7939b782005-05-07 02:21:21 +0000[diff] [blame]457 point comparison macros (e.g., <tt>__builtin_islessequal</tt>),
458 <tt>__builtin_prefetch</tt>, <tt>__builtin_popcount[ll]</tt>,
459 <tt>__builtin_clz[ll]</tt>, and <tt>__builtin_ctz[ll]</tt>.</li>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]460 </ol>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]461
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]462 <p>The following extensions <b>are</b> known to be supported:</p>
463
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]464 <ol>
Chris Lattner7fe97dd2004-03-16 08:54:07 +0000[diff] [blame]465 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Labels-as-Values.html#Labels%20as%20Values">Labels as Values</a>: Getting pointers to labels and computed gotos.</li>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]466 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Statement-Exprs.html#Statement%20Exprs">Statement Exprs</a>: Putting statements and declarations inside expressions.</li>
467 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Typeof.html#Typeof">Typeof</a>: <code>typeof</code>: referring to the type of an expression.</li>
Tanya Lattnerca26c3e2004-06-22 03:48:17 +0000[diff] [blame]468 <li><a href="http://gcc.gnu.org/onlinedocs/gcc-3.4.0/gcc/Lvalues.html#Lvalues">Lvalues</a>: Using <code>?:</code>, "<code>,</code>" and casts in lvalues.</li>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]469 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Conditionals.html#Conditionals">Conditionals</a>: Omitting the middle operand of a <code>?:</code> expression.</li>
470 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Long-Long.html#Long%20Long">Long Long</a>: Double-word integers.</li>
471 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Complex.html#Complex">Complex</a>: Data types for complex numbers.</li>
472 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Hex-Floats.html#Hex%20Floats">Hex Floats</a>:Hexadecimal floating-point constants.</li>
473 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html#Zero%20Length">Zero Length</a>: Zero-length arrays.</li>
474 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Empty-Structures.html#Empty%20Structures">Empty Structures</a>: Structures with no members.</li>
475 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Variadic-Macros.html#Variadic%20Macros">Variadic Macros</a>: Macros with a variable number of arguments.</li>
476 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Escaped-Newlines.html#Escaped%20Newlines">Escaped Newlines</a>: Slightly looser rules for escaped newlines.</li>
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]477 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Extended-Asm.html#Extended%20Asm">Extended Asm</a>: Assembler instructions with C expressions as operands.</li>
478 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Constraints.html#Constraints">Constraints</a>: Constraints for asm operands.</li>
479 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Asm-Labels.html#Asm%20Labels">Asm Labels</a>: Specifying the assembler name to use for a C symbol.</li>
480 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Explicit-Reg-Vars.html#Explicit%20Reg%20Vars">Explicit Reg Vars</a>: Defining variables residing in specified registers.</li>
481 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Vector-Extensions.html#Vector%20Extensions">Vector Extensions</a>: Using vector instructions through built-in functions.</li>
482 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Target-Builtins.html#Target%20Builtins">Target Builtins</a>: Built-in functions specific to particular targets.</li>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]483 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Subscripting.html#Subscripting">Subscripting</a>: Any array can be subscripted, even if not an lvalue.</li>
Misha Brukmanc4b7bee2003-12-12 04:37:31 +0000[diff] [blame]484 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Pointer-Arith.html#Pointer%20Arith">Pointer Arith</a>: Arithmetic on <code>void</code>-pointers and function pointers.</li>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]485 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Initializers.html#Initializers">Initializers</a>: Non-constant initializers.</li>
John Criswelld000e1d2003-12-18 16:43:17 +0000[diff] [blame]486 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Compound-Literals.html#Compound%20Literals">Compound Literals</a>: Compound literals give structures, unions,
487or arrays as values.</li>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]488 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Designated-Inits.html#Designated%20Inits">Designated Inits</a>: Labeling elements of initializers.</li>
Misha Brukmanc4b7bee2003-12-12 04:37:31 +0000[diff] [blame]489 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Cast-to-Union.html#Cast%20to%20Union">Cast to Union</a>: Casting to union type from any member of the union.</li>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]490 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Case-Ranges.html#Case%20Ranges">Case Ranges</a>: `case 1 ... 9' and such.</li>
491 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Mixed-Declarations.html#Mixed%20Declarations">Mixed Declarations</a>: Mixing declarations and code.</li>
492 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Function-Prototypes.html#Function%20Prototypes">Function Prototypes</a>: Prototype declarations and old-style definitions.</li>
Tanya Lattner78537e42004-12-08 18:29:38 +0000[diff] [blame]493 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/C_002b_002b-Comments.html#C_002b_002b-Comments">C++ Comments</a>: C++ comments are recognized.</li>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]494 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Dollar-Signs.html#Dollar%20Signs">Dollar Signs</a>: Dollar sign is allowed in identifiers.</li>
495 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Character-Escapes.html#Character%20Escapes">Character Escapes</a>: <code>\e</code> stands for the character &lt;ESC&gt;.</li>
496 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Alignment.html#Alignment">Alignment</a>: Inquiring about the alignment of a type or variable.</li>
497 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Inline.html#Inline">Inline</a>: Defining inline functions (as fast as macros).</li>
498 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Alternate-Keywords.html#Alternate%20Keywords">Alternate Keywords</a>:<code>__const__</code>, <code>__asm__</code>, etc., for header files.</li>
499 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Incomplete-Enums.html#Incomplete%20Enums">Incomplete Enums</a>: <code>enum foo;</code>, with details to follow.</li>
500 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Function-Names.html#Function%20Names">Function Names</a>: Printable strings which are the name of the current function.</li>
Chris Lattner25795bc2004-02-14 04:08:29 +0000[diff] [blame]501 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Return-Address.html#Return%20Address">Return Address</a>: Getting the return or frame address of a function.</li>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]502 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Unnamed-Fields.html#Unnamed%20Fields">Unnamed Fields</a>: Unnamed struct/union fields within structs/unions.</li>
503 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Attribute-Syntax.html#Attribute%20Syntax">Attribute Syntax</a>: Formal syntax for attributes.</li>
Misha Brukmane0c891c2003-11-22 01:00:11 +0000[diff] [blame]504 </ol></li>
505
506</ul>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]507
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]508<p>If you run into GCC extensions which have not been included in any of these
509lists, please let us know (also including whether or not they work).</p>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]510
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]511</div>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]512
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]513<!-- ======================================================================= -->
514<div class="doc_subsection">
515 <a name="c++-fe">Known problems with the C++ front-end</a>
516</div>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]517
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]518<div class="doc_text">
519
Reid Spencere09ca642004-12-07 08:39:08 +0000[diff] [blame]520<p>For this release, the C++ front-end is considered to be fully
Chris Lattner7506b1d2004-12-07 08:04:13 +0000[diff] [blame]521tested and works for a number of non-trivial programs, including LLVM
522itself.</p>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]523
524</div>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]525
526<!-- _______________________________________________________________________ -->
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]527<div class="doc_subsubsection">
528 Notes
529</div>
530
531<div class="doc_text">
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]532<ul>
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]533<li>llvm-gcc4 does not support C++ exception handling at all yet.</li>
Chris Lattnere01fcfb2003-10-27 18:30:37 +0000[diff] [blame]534
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]535<li>Destructors for local objects are not always run when a <tt>longjmp</tt> is
Chris Lattner19092612003-10-02 16:38:05 +0000[diff] [blame]536 performed. In particular, destructors for objects in the <tt>longjmp</tt>ing
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]537 function and in the <tt>setjmp</tt> receiver function may not be run.
John Criswelld000e1d2003-12-18 16:43:17 +0000[diff] [blame]538 Objects in intervening stack frames will be destroyed, however (which is
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]539 better than most compilers).</li>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]540
Chris Lattner19092612003-10-02 16:38:05 +0000[diff] [blame]541<li>The LLVM C++ front-end follows the <a
542 href="http://www.codesourcery.com/cxx-abi">Itanium C++ ABI</a>.
543 This document, which is not Itanium specific, specifies a standard for name
544 mangling, class layout, v-table layout, RTTI formats, and other C++
545 representation issues. Because we use this API, code generated by the LLVM
546 compilers should be binary compatible with machine code generated by other
547 Itanium ABI C++ compilers (such as G++, the Intel and HP compilers, etc).
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]548 <i>However</i>, the exception handling mechanism used by llvm-gcc3 is very
Chris Lattner19092612003-10-02 16:38:05 +0000[diff] [blame]549 different from the model used in the Itanium ABI, so <b>exceptions will not
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]550 interact correctly</b>. </li>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]551
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]552</ul>
Chris Lattnerfcc54b32003-10-07 22:14:37 +0000[diff] [blame]553
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]554</div>
555
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]556
Chris Lattner98a493c2005-05-15 16:01:20 +0000[diff] [blame]557
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]558<!-- *********************************************************************** -->
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]559<div class="doc_section">
560 <a name="additionalinfo">Additional Information</a>
561</div>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]562<!-- *********************************************************************** -->
563
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]564<div class="doc_text">
565
Chris Lattner416db102005-05-16 17:13:10 +0000[diff] [blame]566<p>A wide variety of additional information is available on the <a
Chris Lattnerc463b272005-10-29 07:07:09 +0000[diff] [blame]567href="http://llvm.org">LLVM web page</a>, including <a
568href="http://llvm.org/docs/">documentation</a> and <a
569href="http://llvm.org/pubs/">publications describing algorithms and
Misha Brukman109d9e82005-03-30 19:14:24 +0000[diff] [blame]570components implemented in LLVM</a>. The web page also contains versions of the
571API documentation which is up-to-date with the CVS version of the source code.
572You can access versions of these documents specific to this release by going
573into the "<tt>llvm/doc/</tt>" directory in the LLVM tree.</p>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]574
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]575<p>If you have any questions or comments about LLVM, please feel free to contact
Chris Lattnerc463b272005-10-29 07:07:09 +0000[diff] [blame]576us via the <a href="http://llvm.org/docs/#maillist"> mailing
Chris Lattner5eccca42003-12-12 21:22:16 +0000[diff] [blame]577lists</a>.</p>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]578
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]579</div>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]580
581<!-- *********************************************************************** -->
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]582
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]583<hr>
Misha Brukman2061e892003-11-22 01:23:39 +0000[diff] [blame]584<address>
Misha Brukman38847d52003-12-21 22:53:21 +0000[diff] [blame]585 <a href="http://jigsaw.w3.org/css-validator/check/referer"><img
Misha Brukman2061e892003-11-22 01:23:39 +0000[diff] [blame]586 src="http://jigsaw.w3.org/css-validator/images/vcss" alt="Valid CSS!"></a>
587 <a href="http://validator.w3.org/check/referer"><img
588 src="http://www.w3.org/Icons/valid-html401" alt="Valid HTML 4.01!" /></a>
589
Chris Lattnerc463b272005-10-29 07:07:09 +0000[diff] [blame]590 <a href="http://llvm.org/">The LLVM Compiler Infrastructure</a><br>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]591 Last modified: $Date$
Misha Brukman2061e892003-11-22 01:23:39 +0000[diff] [blame]592</address>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]593
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]594</body>
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