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gerrit-public.fairphone.software / fp2-dev / platform / external / llvm / 8ff18f162bc6d9479b326ec234e3d681d3768387 / . / 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.
Chris Lattnerf01b0b52007-05-09 05:27:05 +0000[diff] [blame]62Being the first major release since 1.0, this release is different in several
63ways from our previous releases:</p>
64
65<ol>
66<li>We took this as an opportunity to
Chris Lattnercaf06342007-05-09 04:58:11 +0000[diff] [blame]67break backwards compatibility with the LLVM 1.x bytecode and .ll file format.
68If you have LLVM 1.9 .ll files that you would like to upgrade to LLVM 2.x, we
Lauro Ramos Venanciobe1b1b12007-05-12 02:36:41 +0000[diff] [blame]69recommend the use of the stand alone <a href="#llvm-upgrade">llvm-upgrade</a>
Chris Lattnercaf06342007-05-09 04:58:11 +0000[diff] [blame]70tool. We intend to keep compatibility with .ll and .bc formats within the 2.x
Chris Lattnerf01b0b52007-05-09 05:27:05 +0000[diff] [blame]71release series, like we did within the 1.x series.</li>
72<li>There are several significant change to the LLVM IR and internal APIs, such
73 as a major overhaul of the type system, the completely new bitcode file
74 format, etc.</li>
75<li>We designed the release around a 6 month release cycle instead of the usual
76 3-month cycle. This gave us extra time to develop and test some of the
77 more invasive features in this release.</li>
78<li>LLVM 2.0 no longer supports the llvm-gcc3 front-end.</li>
79</ol>
Chris Lattnercaf06342007-05-09 04:58:11 +0000[diff] [blame]80
Chris Lattnerf01b0b52007-05-09 05:27:05 +0000[diff] [blame]81<p>Note that while this is a major version bump, this release has been
82 extensively tested on a wide range of software. It is easy to say that this
83 is our best release yet, in terms of both features and correctness.</p>
Chris Lattnera5099962003-12-06 20:22:41 +0000[diff] [blame]84
Chris Lattner80453c92004-05-24 04:50:25 +0000[diff] [blame]85</div>
86
Chris Lattnera5099962003-12-06 20:22:41 +0000[diff] [blame]87<!--=========================================================================-->
Chris Lattner8a458762005-05-15 05:44:51 +0000[diff] [blame]88<div class="doc_subsection">
Chris Lattnercaf06342007-05-09 04:58:11 +0000[diff] [blame]89<a name="newfeatures">New Features in LLVM 2.0</a>
Chris Lattner44c933e2006-04-18 06:18:36 +0000[diff] [blame]90</div>
91
Chris Lattner738bd302006-04-18 06:32:08 +0000[diff] [blame]92<!--_________________________________________________________________________-->
Chris Lattnerf3e5bc62007-05-14 06:56:09 +0000[diff] [blame]93<div class="doc_subsubsection"><a name="majorchanges">Major Changes</a></div>
94<div class="doc_text">
95<p>blah
96</p>
97
98<ul>
99<li>ding dong llvm-gcc3 is dead</li>
100<li>bytecode -> bitcode</li>
101</ul>
102
103</div>
104
105
106<!--_________________________________________________________________________-->
107<div class="doc_subsubsection"><a name="llvmgccfeatures">llvm-gcc
108Improvements</a></div>
109<div class="doc_text">
110<p>New features include:
111</p>
112
113<ul>
114<li>many new supported things</li>
115<li>easier to configure on linux</li>
116</ul>
117
118</div>
119
120<!--_________________________________________________________________________-->
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]121<div class="doc_subsubsection"><a name="optimizer">Optimizer
122Improvements</a></div>
Chris Lattner738bd302006-04-18 06:32:08 +0000[diff] [blame]123<div class="doc_text">
Chris Lattnerf3e5bc62007-05-14 06:56:09 +0000[diff] [blame]124<p>New features include:
125</p>
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]126
127<ul>
Chris Lattnercaf06342007-05-09 04:58:11 +0000[diff] [blame]128<li></li>
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]129</ul>
130
Chris Lattner738bd302006-04-18 06:32:08 +0000[diff] [blame]131</div>
132
Chris Lattner1c1a85c2006-04-19 04:02:47 +0000[diff] [blame]133<!--_________________________________________________________________________-->
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]134<div class="doc_subsubsection"><a name="codegen">Code
135Generator Enhancements</a></div>
136
Chris Lattner1c1a85c2006-04-19 04:02:47 +0000[diff] [blame]137<div class="doc_text">
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]138<p>
Chris Lattnerf3e5bc62007-05-14 06:56:09 +0000[diff] [blame]139New features include:
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]140</p>
141
142<ul>
Chris Lattnercaf06342007-05-09 04:58:11 +0000[diff] [blame]143<li></li>
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]144</ul>
145
146<p>In addition, the LLVM target description format has itself been extended in
147 several ways:</p>
148
149<ul>
Chris Lattnercaf06342007-05-09 04:58:11 +0000[diff] [blame]150<li></li>
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]151</ul>
152
153<p>Further, several significant target-specific enhancements are included in
Chris Lattnercaf06342007-05-09 04:58:11 +0000[diff] [blame]154LLVM 2.0:</p>
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]155
156<ul>
Chris Lattnercaf06342007-05-09 04:58:11 +0000[diff] [blame]157<li></li>
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]158</ul>
159
Chris Lattner1c1a85c2006-04-19 04:02:47 +0000[diff] [blame]160</div>
Chris Lattner44c933e2006-04-18 06:18:36 +0000[diff] [blame]161
162<!--_________________________________________________________________________-->
Chris Lattnerf3e5bc62007-05-14 06:56:09 +0000[diff] [blame]163<div class="doc_subsubsection"><a name="specifictargets">Target-Specific
164Improvements</a></div>
165
166<div class="doc_text">
167
168<p>New features include:
169</p>
170
171<ul>
172<li></li>
173</ul>
174
175</div>
176
177
178<!--_________________________________________________________________________-->
Chris Lattnerd9ea0172006-08-08 17:27:28 +0000[diff] [blame]179<div class="doc_subsubsection"><a name="other">Other Improvements</a></div>
Chris Lattner58504a62006-02-05 06:39:36 +0000[diff] [blame]180<div class="doc_text">
Chris Lattnercaf06342007-05-09 04:58:11 +0000[diff] [blame]181<p></p>
Chris Lattnerd9ea0172006-08-08 17:27:28 +0000[diff] [blame]182
183<p>More specific changes include:</p>
184
Chris Lattner58504a62006-02-05 06:39:36 +0000[diff] [blame]185<ul>
Chris Lattnercaf06342007-05-09 04:58:11 +0000[diff] [blame]186<li></li>
Chris Lattner58504a62006-02-05 06:39:36 +0000[diff] [blame]187</ul>
188</div>
John Criswelle531ec52005-06-29 16:22:34 +0000[diff] [blame]189
Chris Lattnerc5d658a2006-03-03 00:34:26 +0000[diff] [blame]190
191
Chris Lattner19092612003-10-02 16:38:05 +0000[diff] [blame]192<!-- *********************************************************************** -->
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]193<div class="doc_section">
194 <a name="portability">Portability and Supported Platforms</a>
195</div>
Chris Lattner19092612003-10-02 16:38:05 +0000[diff] [blame]196<!-- *********************************************************************** -->
197
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]198<div class="doc_text">
199
John Criswell0b5b5e92004-12-08 20:35:47 +0000[diff] [blame]200<p>LLVM is known to work on the following platforms:</p>
Chris Lattner4654bdb2004-06-01 18:22:41 +0000[diff] [blame]201
202<ul>
Reid Spencer00812e22005-05-17 02:47:27 +0000[diff] [blame]203 <li>Intel and AMD machines running Red Hat Linux, Fedora Core and FreeBSD
204 (and probably other unix-like systems).</li>
Chris Lattner7ea41e32006-08-09 04:10:32 +0000[diff] [blame]205<li>Intel and AMD machines running on Win32 using MinGW libraries (native)</li>
Chris Lattner4654bdb2004-06-01 18:22:41 +0000[diff] [blame]206<li>Sun UltraSPARC workstations running Solaris 8.</li>
Chris Lattner7506b1d2004-12-07 08:04:13 +0000[diff] [blame]207<li>Intel and AMD machines running on Win32 with the Cygwin libraries (limited
208 support is available for native builds with Visual C++).</li>
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]209<li>PowerPC and X86-based Mac OS X systems, running 10.2 and above in 32-bit and
210 64-bit modes.</li>
John Criswell9321fa82005-05-13 20:28:15 +0000[diff] [blame]211<li>Alpha-based machines running Debian GNU/Linux.</li>
212<li>Itanium-based machines running Linux and HP-UX.</li>
Chris Lattner4654bdb2004-06-01 18:22:41 +0000[diff] [blame]213</ul>
214
Brian Gaekeb0fd7612004-05-09 05:28:35 +0000[diff] [blame]215<p>The core LLVM infrastructure uses
216<a href="http://www.gnu.org/software/autoconf/">GNU autoconf</a> to adapt itself
217to the machine and operating system on which it is built. However, minor
218porting may be required to get LLVM to work on new platforms. We welcome your
219portability patches and reports of successful builds or error messages.</p>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]220
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]221</div>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]222
223<!-- *********************************************************************** -->
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]224<div class="doc_section">
225 <a name="knownproblems">Known Problems</a>
226</div>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]227<!-- *********************************************************************** -->
228
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]229<div class="doc_text">
230
231<p>This section contains all known problems with the LLVM system, listed by
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]232component. As new problems are discovered, they will be added to these
Chris Lattner5eccca42003-12-12 21:22:16 +0000[diff] [blame]233sections. If you run into a problem, please check the <a
Chris Lattnerc463b272005-10-29 07:07:09 +0000[diff] [blame]234href="http://llvm.org/bugs/">LLVM bug database</a> and submit a bug if
Chris Lattner5eccca42003-12-12 21:22:16 +0000[diff] [blame]235there isn't already one.</p>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]236
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]237</div>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]238
Chris Lattnerf5ee1702004-03-14 02:03:02 +0000[diff] [blame]239<!-- ======================================================================= -->
240<div class="doc_subsection">
241 <a name="experimental">Experimental features included with this release</a>
242</div>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]243
Chris Lattnerf5ee1702004-03-14 02:03:02 +0000[diff] [blame]244<div class="doc_text">
245
Misha Brukman6df9e2c2004-05-12 21:46:05 +0000[diff] [blame]246<p>The following components of this LLVM release are either untested, known to
247be broken or unreliable, or are in early development. These components should
248not be relied on, and bugs should not be filed against them, but they may be
249useful 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]250components, 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]251
252<ul>
Chris Lattner44c933e2006-04-18 06:18:36 +0000[diff] [blame]253<li>The <tt>-cee</tt> pass is known to be buggy, and may be removed in in a
254 future release.</li>
Chris Lattner0d77e052007-05-09 06:23:58 +0000[diff] [blame]255<li>C++ EH support</li>
Chris Lattner58504a62006-02-05 06:39:36 +0000[diff] [blame]256<li>The IA64 code generator is experimental.</li>
Chris Lattnerc463b272005-10-29 07:07:09 +0000[diff] [blame]257<li>The Alpha JIT is experimental.</li>
Chris Lattner44c933e2006-04-18 06:18:36 +0000[diff] [blame]258<li>"<tt>-filetype=asm</tt>" (the default) is the only supported value for the
259 <tt>-filetype</tt> llc option.</li>
Chris Lattnerf5ee1702004-03-14 02:03:02 +0000[diff] [blame]260</ul>
261
262</div>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]263
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]264<!-- ======================================================================= -->
265<div class="doc_subsection">
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]266 <a name="x86-be">Known problems with the X86 back-end</a>
John Criswellc0c186d2005-11-08 21:11:33 +0000[diff] [blame]267</div>
268
269<div class="doc_text">
270
271<ul>
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]272<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]273 assembly that uses the X86 floating point stack</a>.</li>
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]274</ul>
275
276</div>
277
278<!-- ======================================================================= -->
279<div class="doc_subsection">
280 <a name="ppc-be">Known problems with the PowerPC back-end</a>
281</div>
282
283<div class="doc_text">
284
285<ul>
286<li><a href="http://llvm.org/PR642">PowerPC backend does not correctly
287implement ordered FP comparisons</a>.</li>
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]288</ul>
289
290</div>
291
292<!-- ======================================================================= -->
293<div class="doc_subsection">
Chris Lattnerf3e5bc62007-05-14 06:56:09 +0000[diff] [blame]294 <a name="arm-be">Known problems with the ARM back-end</a>
295</div>
296
297<div class="doc_text">
298
299<ul>
300<li>The Thumb mode works only on ARMv6 or higher processors. On sub-ARMv6
301processors, any thumb program compiled with LLVM crashes or produces wrong
302results. (<a href="http://llvm.org/PR1388">PR1388</a>)</li>
303<li>Compilation for ARM Linux OABI (old ABI) is supported, but not fully tested.
304</li>
305<li>QEMU-ARM (<= 0.9.0) wrongly executes programs compiled with LLVM. A non-affected QEMU version must be used or this
306<a href="http://cvs.savannah.nongnu.org/viewcvs/qemu/target-arm/translate.c?root=qemu&r1=1.46&r2=1.47&makepatch=1&diff_format=h">
307patch</a> must be applied on QEMU.</li>
308</ul>
309
310</div>
311
312<!-- ======================================================================= -->
313<div class="doc_subsection">
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]314 <a name="sparc-be">Known problems with the SPARC back-end</a>
315</div>
316
317<div class="doc_text">
318
319<ul>
320<li>The SPARC backend only supports the 32-bit SPARC ABI (-m32), it does not
321 support the 64-bit SPARC ABI (-m64).</li>
322</ul>
323
324</div>
325
326<!-- ======================================================================= -->
327<div class="doc_subsection">
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]328 <a name="alpha-be">Known problems with the Alpha back-end</a>
329</div>
330
331<div class="doc_text">
332
333<ul>
334
335<li>On 21164s, some rare FP arithmetic sequences which may trap do not have the
336appropriate nops inserted to ensure restartability.</li>
337
John Criswellc0c186d2005-11-08 21:11:33 +0000[diff] [blame]338</ul>
339</div>
340
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]341<!-- ======================================================================= -->
342<div class="doc_subsection">
343 <a name="ia64-be">Known problems with the IA64 back-end</a>
344</div>
345
346<div class="doc_text">
347
348<ul>
349
350<li>C++ programs are likely to fail on IA64, as calls to <tt>setjmp</tt> are
351made where the argument is not 16-byte aligned, as required on IA64. (Strictly
352speaking this is not a bug in the IA64 back-end; it will also be encountered
353when building C++ programs using the C back-end.)</li>
354
355<li>The C++ front-end does not use <a href="http://llvm.org/PR406">IA64
356ABI compliant layout of v-tables</a>. In particular, it just stores function
357pointers instead of function descriptors in the vtable. This bug prevents
358mixing C++ code compiled with LLVM with C++ objects compiled by other C++
359compilers.</li>
360
361<li>There are a few ABI violations which will lead to problems when mixing LLVM
362output with code built with other compilers, particularly for floating-point
363programs.</li>
364
365<li>Defining vararg functions is not supported (but calling them is ok).</li>
366
Chris Lattnercaf06342007-05-09 04:58:11 +0000[diff] [blame]367<li>The Itanium backend has bitrotted somewhat.</li>
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]368</ul>
369
370</div>
371
372<!-- ======================================================================= -->
373<div class="doc_subsection">
Chris Lattnerf3e5bc62007-05-14 06:56:09 +0000[diff] [blame]374 <a name="c-be">Known problems with the C back-end</a>
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]375</div>
376
377<div class="doc_text">
378
379<ul>
Chris Lattnerf3e5bc62007-05-14 06:56:09 +0000[diff] [blame]380<li><a href="http://llvm.org/PR802">The C backend does not support inline
381 assembly code</a>.</li>
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]382</ul>
383
384</div>
John Criswellc0c186d2005-11-08 21:11:33 +0000[diff] [blame]385
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]386
387<!-- ======================================================================= -->
388<div class="doc_subsection">
389 <a name="c-fe">Known problems with the C front-end</a>
390</div>
Chris Lattner47588f92003-10-02 05:07:23 +0000[diff] [blame]391
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]392<!-- _______________________________________________________________________ -->
Chris Lattnerb40efb32003-12-14 05:03:43 +0000[diff] [blame]393<div class="doc_subsubsection">Bugs</div>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]394
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]395<div class="doc_text">
Chris Lattnerc5d658a2006-03-03 00:34:26 +0000[diff] [blame]396
Chris Lattnerf3e5bc62007-05-14 06:56:09 +0000[diff] [blame]397<p>llvm-gcc4 does not currently support <a href="http://llvm.org/PR869">Link-Time
398Optimization</a> on most platforms "out-of-the-box". Please inquire on the
399llvmdev mailing list if you are interested.</p>
Chris Lattnerd9ea0172006-08-08 17:27:28 +0000[diff] [blame]400
Chris Lattnerf3e5bc62007-05-14 06:56:09 +0000[diff] [blame]401<p>FIXME: the list of supported stuff below needs to be updated. We do support
402tls now, what else??</p>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]403</div>
404
405<!-- _______________________________________________________________________ -->
406<div class="doc_subsubsection">
407 Notes
408</div>
409
410<div class="doc_text">
411
412<ul>
413
Chris Lattnere01fcfb2003-10-27 18:30:37 +0000[diff] [blame]414<li>"long double" is transformed by the front-end into "double". There is no
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]415support for floating point data types of any size other than 32 and 64
416bits.</li>
417
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]418<li>Although many GCC extensions are supported, some are not. In particular,
419 the following extensions are known to <b>not be</b> supported:
420 <ol>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]421 <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]422 <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>
423 <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]424 <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]425 <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]426 </ol>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]427
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]428 <p>The following GCC extensions are <b>partially</b> supported. An ignored
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]429 attribute means that the LLVM compiler ignores the presence of the attribute,
430 but the code should still work. An unsupported attribute is one which is
John Criswelld000e1d2003-12-18 16:43:17 +0000[diff] [blame]431 ignored by the LLVM compiler and will cause a different interpretation of
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]432 the program.</p>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]433
434 <ol>
435 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Variable-Length.html#Variable%20Length">Variable Length</a>:
436 Arrays whose length is computed at run time.<br>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]437 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]438
439 <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]440
John Criswelld000e1d2003-12-18 16:43:17 +0000[diff] [blame]441 Declaring that functions have no side effects or that they can never
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]442 return.<br>
443
Anton Korobeynikov9ec81372007-05-10 08:26:24 +0000[diff] [blame]444 <b>Supported:</b> <tt>alias</tt>, <tt>constructor</tt>, <tt>destructor</tt>,
Anton Korobeynikov9413de32006-11-18 08:04:48 +0000[diff] [blame]445 <tt>deprecated</tt>, <tt>fastcall</tt>, <tt>format</tt>,
Anton Korobeynikov9ec81372007-05-10 08:26:24 +0000[diff] [blame]446 <tt>format_arg</tt>, <tt>non_null</tt>, <tt>noreturn</tt>, <tt>regparm</tt>
Anton Korobeynikov8cea37b2007-01-23 12:35:46 +0000[diff] [blame]447 <tt>section</tt>, <tt>stdcall</tt>, <tt>unused</tt>, <tt>used</tt>,
448 <tt>visibility</tt>, <tt>warn_unused_result</tt>, <tt>weak</tt><br>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]449
John Criswell0b5b5e92004-12-08 20:35:47 +0000[diff] [blame]450 <b>Ignored:</b> <tt>noinline</tt>,
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]451 <tt>always_inline</tt>, <tt>pure</tt>, <tt>const</tt>, <tt>nothrow</tt>,
452 <tt>malloc</tt>, <tt>no_instrument_function</tt>, <tt>cdecl</tt><br>
453
Anton Korobeynikov9ec81372007-05-10 08:26:24 +0000[diff] [blame]454 <b>Unsupported:</b> All other target specific attributes</li>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]455
456 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Variable-Attributes.html#Variable%20Attributes">Variable Attributes</a>:
457 Specifying attributes of variables.<br>
Anton Korobeynikov9ec81372007-05-10 08:26:24 +0000[diff] [blame]458 <b>Supported:</b> <tt>alias</tt>, <tt>cleanup</tt>, <tt>common</tt>,
459 <tt>nocommon</tt>, <tt>deprecated</tt>, <tt>dllimport</tt>,
460 <tt>dllexport</tt>, <tt>section</tt>, <tt>transparent_union</tt>,
461 <tt>unused</tt>, <tt>used</tt>, <tt>weak</tt><br>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]462
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]463 <b>Unsupported:</b> <tt>aligned</tt>, <tt>mode</tt>, <tt>packed</tt>,
Anton Korobeynikov8cea37b2007-01-23 12:35:46 +0000[diff] [blame]464 <tt>shared</tt>, <tt>tls_model</tt>,
465 <tt>vector_size</tt>, all target specific attributes.
Anton Korobeynikov9413de32006-11-18 08:04:48 +0000[diff] [blame]466 </li>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]467
Misha Brukmanc4b7bee2003-12-12 04:37:31 +0000[diff] [blame]468 <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]469 <b>Supported:</b> <tt>transparent_union</tt>, <tt>unused</tt>,
Misha Brukmanc4b7bee2003-12-12 04:37:31 +0000[diff] [blame]470 <tt>deprecated</tt>, <tt>may_alias</tt><br>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]471
472 <b>Unsupported:</b> <tt>aligned</tt>, <tt>packed</tt>,
473 all target specific attributes.</li>
474
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]475 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Other-Builtins.html#Other%20Builtins">Other Builtins</a>:
476 Other built-in functions.<br>
477 We support all builtins which have a C language equivalent (e.g.,
478 <tt>__builtin_cos</tt>), <tt>__builtin_alloca</tt>,
479 <tt>__builtin_types_compatible_p</tt>, <tt>__builtin_choose_expr</tt>,
Chris Lattnerceebeb62004-06-18 06:26:29 +0000[diff] [blame]480 <tt>__builtin_constant_p</tt>, and <tt>__builtin_expect</tt>
481 (currently ignored). We also support builtins for ISO C99 floating
Chris Lattner7939b782005-05-07 02:21:21 +0000[diff] [blame]482 point comparison macros (e.g., <tt>__builtin_islessequal</tt>),
483 <tt>__builtin_prefetch</tt>, <tt>__builtin_popcount[ll]</tt>,
484 <tt>__builtin_clz[ll]</tt>, and <tt>__builtin_ctz[ll]</tt>.</li>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]485 </ol>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]486
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]487 <p>The following extensions <b>are</b> known to be supported:</p>
488
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]489 <ol>
Chris Lattner7fe97dd2004-03-16 08:54:07 +0000[diff] [blame]490 <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]491 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Statement-Exprs.html#Statement%20Exprs">Statement Exprs</a>: Putting statements and declarations inside expressions.</li>
492 <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]493 <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]494 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Conditionals.html#Conditionals">Conditionals</a>: Omitting the middle operand of a <code>?:</code> expression.</li>
495 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Long-Long.html#Long%20Long">Long Long</a>: Double-word integers.</li>
496 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Complex.html#Complex">Complex</a>: Data types for complex numbers.</li>
497 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Hex-Floats.html#Hex%20Floats">Hex Floats</a>:Hexadecimal floating-point constants.</li>
498 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html#Zero%20Length">Zero Length</a>: Zero-length arrays.</li>
499 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Empty-Structures.html#Empty%20Structures">Empty Structures</a>: Structures with no members.</li>
500 <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>
501 <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]502 <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>
503 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Constraints.html#Constraints">Constraints</a>: Constraints for asm operands.</li>
504 <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>
505 <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>
506 <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>
507 <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]508 <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]509 <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]510 <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]511 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Compound-Literals.html#Compound%20Literals">Compound Literals</a>: Compound literals give structures, unions,
512or arrays as values.</li>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]513 <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]514 <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]515 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Case-Ranges.html#Case%20Ranges">Case Ranges</a>: `case 1 ... 9' and such.</li>
516 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Mixed-Declarations.html#Mixed%20Declarations">Mixed Declarations</a>: Mixing declarations and code.</li>
517 <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]518 <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]519 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Dollar-Signs.html#Dollar%20Signs">Dollar Signs</a>: Dollar sign is allowed in identifiers.</li>
520 <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>
521 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Alignment.html#Alignment">Alignment</a>: Inquiring about the alignment of a type or variable.</li>
522 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Inline.html#Inline">Inline</a>: Defining inline functions (as fast as macros).</li>
523 <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>
524 <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>
525 <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]526 <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]527 <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>
528 <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]529 </ol></li>
530
531</ul>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]532
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]533<p>If you run into GCC extensions which have not been included in any of these
534lists, please let us know (also including whether or not they work).</p>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]535
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]536</div>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]537
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]538<!-- ======================================================================= -->
539<div class="doc_subsection">
540 <a name="c++-fe">Known problems with the C++ front-end</a>
541</div>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]542
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]543<div class="doc_text">
544
Chris Lattnerf3e5bc62007-05-14 06:56:09 +0000[diff] [blame]545<p>The C++ front-end is considered to be fully
Chris Lattner7506b1d2004-12-07 08:04:13 +0000[diff] [blame]546tested and works for a number of non-trivial programs, including LLVM
Chris Lattnerf3e5bc62007-05-14 06:56:09 +0000[diff] [blame]547itself, Qt, Mozilla, etc.</p>
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]548
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]549<ul>
Chris Lattnerf3e5bc62007-05-14 06:56:09 +0000[diff] [blame]550<li>llvm-gcc4 only has partial support for <a href="http://llvm.org/PR870">C++
551Exception Handling</a>, and it is not enabled by default.</li>
552
553<!-- NO EH Support!
Chris Lattnere01fcfb2003-10-27 18:30:37 +0000[diff] [blame]554
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]555<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]556 performed. In particular, destructors for objects in the <tt>longjmp</tt>ing
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]557 function and in the <tt>setjmp</tt> receiver function may not be run.
John Criswelld000e1d2003-12-18 16:43:17 +0000[diff] [blame]558 Objects in intervening stack frames will be destroyed, however (which is
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]559 better than most compilers).</li>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]560
Chris Lattner19092612003-10-02 16:38:05 +0000[diff] [blame]561<li>The LLVM C++ front-end follows the <a
562 href="http://www.codesourcery.com/cxx-abi">Itanium C++ ABI</a>.
563 This document, which is not Itanium specific, specifies a standard for name
564 mangling, class layout, v-table layout, RTTI formats, and other C++
565 representation issues. Because we use this API, code generated by the LLVM
566 compilers should be binary compatible with machine code generated by other
567 Itanium ABI C++ compilers (such as G++, the Intel and HP compilers, etc).
Chris Lattner26299222006-11-18 07:51:14 +0000[diff] [blame]568 <i>However</i>, the exception handling mechanism used by llvm-gcc3 is very
Chris Lattner19092612003-10-02 16:38:05 +0000[diff] [blame]569 different from the model used in the Itanium ABI, so <b>exceptions will not
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]570 interact correctly</b>. </li>
Chris Lattnerf3e5bc62007-05-14 06:56:09 +0000[diff] [blame]571-->
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]572</ul>
Chris Lattnerfcc54b32003-10-07 22:14:37 +0000[diff] [blame]573
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]574</div>
575
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]576
Chris Lattner98a493c2005-05-15 16:01:20 +0000[diff] [blame]577
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]578<!-- *********************************************************************** -->
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]579<div class="doc_section">
580 <a name="additionalinfo">Additional Information</a>
581</div>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]582<!-- *********************************************************************** -->
583
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]584<div class="doc_text">
585
Chris Lattner416db102005-05-16 17:13:10 +0000[diff] [blame]586<p>A wide variety of additional information is available on the <a
Chris Lattnerc463b272005-10-29 07:07:09 +0000[diff] [blame]587href="http://llvm.org">LLVM web page</a>, including <a
588href="http://llvm.org/docs/">documentation</a> and <a
589href="http://llvm.org/pubs/">publications describing algorithms and
Misha Brukman109d9e82005-03-30 19:14:24 +0000[diff] [blame]590components implemented in LLVM</a>. The web page also contains versions of the
591API documentation which is up-to-date with the CVS version of the source code.
592You can access versions of these documents specific to this release by going
593into the "<tt>llvm/doc/</tt>" directory in the LLVM tree.</p>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]594
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]595<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]596us via the <a href="http://llvm.org/docs/#maillist"> mailing
Chris Lattner5eccca42003-12-12 21:22:16 +0000[diff] [blame]597lists</a>.</p>
Chris Lattner79c3fe12003-10-02 04:57:28 +0000[diff] [blame]598
Misha Brukman500bc302003-11-22 00:38:41 +0000[diff] [blame]599</div>
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