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gerrit-public.fairphone.software / toolchain / llvm-project / 47ce2b2d22aba57d50b76677a6610bce389d25cd / . / llvm / docs / ReleaseNotes.html
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Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN"
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4<head>
Reid Spencere4190fa2004-11-18 18:38:58 +0000[diff] [blame]5 <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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Chris Lattner7422bce2008-02-06 06:30:34 +0000[diff] [blame]7 <title>LLVM 2.2 Release Notes</title>
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]8</head>
9<body>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]10
Chris Lattner7422bce2008-02-06 06:30:34 +0000[diff] [blame]11<div class="doc_title">LLVM 2.2 Release Notes</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]12
13<ol>
Misha Brukman80731b92003-11-22 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 Lattner77a51732004-04-30 22:17:12 +0000[diff] [blame]16 <li><a href="GettingStarted.html">Installation Instructions</a></li>
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]17 <li><a href="#portability">Portability and Supported Platforms</a></li>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]18 <li><a href="#knownproblems">Known Problems</a>
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]19 <li><a href="#additionalinfo">Additional Information</a></li>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]20</ol>
21
Chris Lattner020e1fc2004-05-23 21:07:27 +0000[diff] [blame]22<div class="doc_author">
Chris Lattnera69595e2005-10-29 07:07:09 +0000[diff] [blame]23 <p>Written by the <a href="http://llvm.org">LLVM Team</a><p>
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]24</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]25
Chris Lattner0ec35042008-02-06 18:00:48 +0000[diff] [blame]26<h1><font color="red">THIS IS A WORK IN PROGRESS FOR THE LLVM 2.2
27RELEASE</font</h1>
28
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]29<!-- *********************************************************************** -->
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]30<div class="doc_section">
31 <a name="intro">Introduction</a>
32</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]33<!-- *********************************************************************** -->
34
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]35<div class="doc_text">
36
37<p>This document contains the release notes for the LLVM compiler
Chris Lattner7422bce2008-02-06 06:30:34 +0000[diff] [blame]38infrastructure, release 2.2. Here we describe the status of LLVM, including
Chris Lattnerbee7b322007-05-23 04:39:32 +0000[diff] [blame]39major improvements from the previous release and any known problems. All LLVM
Chris Lattner98a33492007-05-09 04:58:11 +0000[diff] [blame]40releases may be downloaded from the <a href="http://llvm.org/releases/">LLVM
Chris Lattnerbee7b322007-05-23 04:39:32 +0000[diff] [blame]41releases web site</a>.</p>
Chris Lattner62495762003-10-02 16:38:05 +0000[diff] [blame]42
Chris Lattnerb5bb5972004-12-07 08:04:13 +0000[diff] [blame]43<p>For more information about LLVM, including information about the latest
Chris Lattnera69595e2005-10-29 07:07:09 +0000[diff] [blame]44release, please check out the <a href="http://llvm.org/">main LLVM
Chris Lattnere7525b52003-10-07 21:38:31 +0000[diff] [blame]45web site</a>. If you have questions or comments, the <a
46href="http://mail.cs.uiuc.edu/mailman/listinfo/llvmdev">LLVM developer's mailing
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]47list</a> is a good place to send them.</p>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]48
Reid Spencerc7f87f22007-07-09 08:04:31 +0000[diff] [blame]49<p>Note that if you are reading this file from a Subversion checkout or the
Chris Lattner0a1fd102007-09-21 03:54:09 +0000[diff] [blame]50main LLVM web page, this document applies to the <i>next</i> release, not the
51current one. To see the release notes for a specific releases, please see the
52<a href="http://llvm.org/releases/">releases page</a>.</p>
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]53
54</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]55
56<!-- *********************************************************************** -->
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]57<div class="doc_section">
58 <a name="whatsnew">What's New?</a>
59</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]60<!-- *********************************************************************** -->
61
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]62<div class="doc_text">
63
Chris Lattner7422bce2008-02-06 06:30:34 +0000[diff] [blame]64<p>This is the thirteenth public release of the LLVM Compiler Infrastructure.
65It includes many features and refinements from LLVM 2.1.</p>
Chris Lattnerba7bd472003-12-06 20:22:41 +0000[diff] [blame]66
Chris Lattner21a90402004-05-24 04:50:25 +0000[diff] [blame]67</div>
68
Chris Lattnerba7bd472003-12-06 20:22:41 +0000[diff] [blame]69<!--=========================================================================-->
Chris Lattner406bddf2005-05-15 05:44:51 +0000[diff] [blame]70<div class="doc_subsection">
Chris Lattner7422bce2008-02-06 06:30:34 +0000[diff] [blame]71<a name="frontends">llvm-gcc 4.0, llvm-gcc 4.2, and clang</a>
Chris Lattner9f871732006-04-18 06:18:36 +0000[diff] [blame]72</div>
73
Chris Lattner97beb512007-05-14 06:56:09 +0000[diff] [blame]74<div class="doc_text">
Chris Lattner727c3742007-05-18 06:33:02 +0000[diff] [blame]75
Chris Lattner7422bce2008-02-06 06:30:34 +0000[diff] [blame]76<p>LLVM 2.2 fully supports both the llvm-gcc 4.0 and llvm-gcc 4.2 front-ends (in
77LLVM 2.1, llvm-gcc 4.2 was beta). Since LLVM 2.1, the llvm-gcc 4.2 front-end
78has made leaps and bounds and is now at least as good as 4.0 in virtually every
79area, and is better in several areas (for example, exception handling
80correctness). We strongly recommend that you migrate from llvm-gcc 4.0 to
81llvm-gcc 4.2 in this release cycle because <b>LLVM 2.2 is the last release
82that will support llvm-gcc 4.0</b>: LLVM 2.3 will only support the llvm-gcc
834.2 front-end.</p>
Chris Lattner97beb512007-05-14 06:56:09 +0000[diff] [blame]84
Chris Lattnercdc44ed2008-02-06 18:00:06 +0000[diff] [blame]85<p>The <a href="http://clang.llvm.org/">clang project</a> is an effort to build
86a set of new 'llvm native' front-end technologies for the LLVM optimizer
87and code generator. Currently, its C and Objective-C support is maturing
88nicely, and it has advanced source-to-source analysis and transformation
89capabilities. If you are interested in building source-level tools for C and
90Objective-C (and eventually C++), you should take a look. However, note that
91clang is not an official part of the LLVM 2.2 release. If you are interested in
92this project, please see the web site.</p>
93
94</div>
95
96<!--=========================================================================-->
97<div class="doc_subsection">
98<a name="majorfeatures">Major New Features</a>
99</div>
100
101<div class="doc_text">
102
103<p>Dale contributed full support for long double on x86/x86-64 (where it is 80
104bits) and on Darwin PPC/PPC64 (where it is 128 bits).</p>
105
106<p>Ada, gfortran</p>
107
108<p>
109debug improvements -O0
110EH.
111
112Gordon: GC Revamp. docs/GarbageCollection.html
113
114Kaleidescope: docs/tutorial
115
116Gordon: C and Ocaml Bindings
Chris Lattner727c3742007-05-18 06:33:02 +0000[diff] [blame]117
Chris Lattner97beb512007-05-14 06:56:09 +0000[diff] [blame]118</div>
119
Chris Lattner0a1fd102007-09-21 03:54:09 +0000[diff] [blame]120<!--=========================================================================-->
121<div class="doc_subsection">
122<a name="optimizer">Optimizer Improvements</a>
123</div>
Chris Lattner97beb512007-05-14 06:56:09 +0000[diff] [blame]124
Chris Lattner97beb512007-05-14 06:56:09 +0000[diff] [blame]125<div class="doc_text">
Chris Lattner0a1fd102007-09-21 03:54:09 +0000[diff] [blame]126
Chris Lattner4734a352007-09-26 05:44:21 +0000[diff] [blame]127<p>Some of the most noticable feature improvements this release have been in the
128optimizer, speeding it up and making it more aggressive. For example:</p>
Chris Lattner97beb512007-05-14 06:56:09 +0000[diff] [blame]129
130<ul>
Tanya Lattner6ee68ca2007-05-16 23:25:46 +0000[diff] [blame]131
Chris Lattner47ce2b22008-02-06 18:32:06 +0000[diff] [blame^]132<li>Daniel Berlin and (Curtis?) rewrote Andersen's alias analysis (which is not
Chris Lattnercdc44ed2008-02-06 18:00:06 +0000[diff] [blame]133enabled by default) to be several orders of magnitude faster, implmented Offline
134Variable Substitution.</li>
Tanya Lattner6ee68ca2007-05-16 23:25:46 +0000[diff] [blame]135
Chris Lattnercdc44ed2008-02-06 18:00:06 +0000[diff] [blame]136
137Devang: LoopIndexSplit is enabled by default.
Chris Lattner97beb512007-05-14 06:56:09 +0000[diff] [blame]138</ul>
Chris Lattner0a1fd102007-09-21 03:54:09 +0000[diff] [blame]139
Chris Lattner97beb512007-05-14 06:56:09 +0000[diff] [blame]140</div>
141
Chris Lattner0a1fd102007-09-21 03:54:09 +0000[diff] [blame]142<!--=========================================================================-->
143<div class="doc_subsection">
144<a name="codegen">Code Generator Improvements</a>
145</div>
146
147<div class="doc_text">
148
Chris Lattnercdc44ed2008-02-06 18:00:06 +0000[diff] [blame]149<p>foci of this release was performance tuning and bug
Chris Lattner4734a352007-09-26 05:44:21 +0000[diff] [blame]150 fixing. In addition to these, several new major changes occurred:</p>
151
Chris Lattner0a1fd102007-09-21 03:54:09 +0000[diff] [blame]152<ul>
153
Chris Lattner47ce2b22008-02-06 18:32:06 +0000[diff] [blame^]154<li>Owen contributed Machine Loop info, domintors, etc. Merged dom and
155 postdom.</li>
Chris Lattner0a1fd102007-09-21 03:54:09 +0000[diff] [blame]156
Chris Lattnercdc44ed2008-02-06 18:00:06 +0000[diff] [blame]157<li>Dan added support for emitting debug information with .file and .loc on
158targets that support it</li>
159
160<li>Evan physical register dependencies in the BURR scheduler</li>
Chris Lattner47ce2b22008-02-06 18:32:06 +0000[diff] [blame^]161
162<li>Evan EXTRACT_SUBREG coalescing support</li>
Chris Lattner0a1fd102007-09-21 03:54:09 +0000[diff] [blame]163</ul>
164
165</div>
166
167
168<!--=========================================================================-->
169<div class="doc_subsection">
170<a name="targetspecific">Target Specific Improvements</a>
171</div>
Chris Lattner727c3742007-05-18 06:33:02 +0000[diff] [blame]172
Chris Lattner89e761c2006-04-18 06:32:08 +0000[diff] [blame]173<div class="doc_text">
Chris Lattner97beb512007-05-14 06:56:09 +0000[diff] [blame]174<p>New features include:
175</p>
Chris Lattnerb81f10e2006-11-18 07:51:14 +0000[diff] [blame]176
177<ul>
Chris Lattnercdc44ed2008-02-06 18:00:06 +0000[diff] [blame]178<li>Evan X86 now models EFLAGS in instructions.</li>
179<li>Evan: If conversion on by default for ARM.</li>
Chris Lattner47ce2b22008-02-06 18:32:06 +0000[diff] [blame^]180<li>Bruno: MIPS PIC support.</li>
181<li>Arnold Schwaighofer: X86 tail call support.</li>
Chris Lattner0a1fd102007-09-21 03:54:09 +0000[diff] [blame]182</ul>
183
184</div>
Chris Lattnerbee7b322007-05-23 04:39:32 +0000[diff] [blame]185
Chris Lattnerbee7b322007-05-23 04:39:32 +0000[diff] [blame]186
Chris Lattner0a1fd102007-09-21 03:54:09 +0000[diff] [blame]187<!--=========================================================================-->
188<div class="doc_subsection">
189<a name="llvmgccimprovements">llvm-gcc Improvements</a>
190</div>
Tanya Lattner6ee68ca2007-05-16 23:25:46 +0000[diff] [blame]191
Chris Lattner0a1fd102007-09-21 03:54:09 +0000[diff] [blame]192<div class="doc_text">
193<p>New features include:
194</p>
Tanya Lattner6ee68ca2007-05-16 23:25:46 +0000[diff] [blame]195
Chris Lattner0a1fd102007-09-21 03:54:09 +0000[diff] [blame]196<ul>
Chris Lattner7422bce2008-02-06 06:30:34 +0000[diff] [blame]197<li>.</li>
Chris Lattnerb81f10e2006-11-18 07:51:14 +0000[diff] [blame]198</ul>
199
Chris Lattner89e761c2006-04-18 06:32:08 +0000[diff] [blame]200</div>
201
Chris Lattner0a1fd102007-09-21 03:54:09 +0000[diff] [blame]202
203<!--=========================================================================-->
204<div class="doc_subsection">
205<a name="coreimprovements">LLVM Core Improvements</a>
206</div>
Chris Lattnerb81f10e2006-11-18 07:51:14 +0000[diff] [blame]207
Chris Lattner0b7fd712006-04-19 04:02:47 +0000[diff] [blame]208<div class="doc_text">
Chris Lattner0a1fd102007-09-21 03:54:09 +0000[diff] [blame]209<p>New features include:
Chris Lattnerb81f10e2006-11-18 07:51:14 +0000[diff] [blame]210</p>
211
212<ul>
Chris Lattner47ce2b22008-02-06 18:32:06 +0000[diff] [blame^]213<li>Devang added LLVMFoldingBuilder.</li>
214<li>Dan added support for vector sin, cos, and pow intrinsics.</li>
Chris Lattner8ce1ba42007-05-17 21:41:31 +0000[diff] [blame]215</ul>
Chris Lattner0a1fd102007-09-21 03:54:09 +0000[diff] [blame]216
Chris Lattner8ce1ba42007-05-17 21:41:31 +0000[diff] [blame]217</div>
Chris Lattner72a269f2006-03-03 00:34:26 +0000[diff] [blame]218
Chris Lattner0a1fd102007-09-21 03:54:09 +0000[diff] [blame]219<!--=========================================================================-->
220<div class="doc_subsection">
221<a name="otherimprovements">Other Improvements</a>
222</div>
223
224<div class="doc_text">
225<p>New features include:
226</p>
227
228<ul>
Chris Lattner7422bce2008-02-06 06:30:34 +0000[diff] [blame]229<li>.</li>
Chris Lattner0a1fd102007-09-21 03:54:09 +0000[diff] [blame]230</ul>
231
232</div>
Chris Lattner72a269f2006-03-03 00:34:26 +0000[diff] [blame]233
Chris Lattner62495762003-10-02 16:38:05 +0000[diff] [blame]234<!-- *********************************************************************** -->
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]235<div class="doc_section">
236 <a name="portability">Portability and Supported Platforms</a>
237</div>
Chris Lattner62495762003-10-02 16:38:05 +0000[diff] [blame]238<!-- *********************************************************************** -->
239
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]240<div class="doc_text">
241
John Criswell64307722004-12-08 20:35:47 +0000[diff] [blame]242<p>LLVM is known to work on the following platforms:</p>
Chris Lattner2c7b0872004-06-01 18:22:41 +0000[diff] [blame]243
244<ul>
Chris Lattnerbee7b322007-05-23 04:39:32 +0000[diff] [blame]245<li>Intel and AMD machines running Red Hat Linux, Fedora Core and FreeBSD
Reid Spencer9803b402005-05-17 02:47:27 +0000[diff] [blame]246 (and probably other unix-like systems).</li>
Chris Lattner7422bce2008-02-06 06:30:34 +0000[diff] [blame]247<li>PowerPC and X86-based Mac OS X systems, running 10.3 and above in 32-bit and
Chris Lattnerb81f10e2006-11-18 07:51:14 +0000[diff] [blame]248 64-bit modes.</li>
Chris Lattnercdc44ed2008-02-06 18:00:06 +0000[diff] [blame]249<li>Intel and AMD machines running on Win32 using MinGW libraries (native).</li>
Chris Lattnerbee7b322007-05-23 04:39:32 +0000[diff] [blame]250<li>Intel and AMD machines running on Win32 with the Cygwin libraries (limited
251 support is available for native builds with Visual C++).</li>
252<li>Sun UltraSPARC workstations running Solaris 8.</li>
John Criswelld5234922005-05-13 20:28:15 +0000[diff] [blame]253<li>Alpha-based machines running Debian GNU/Linux.</li>
254<li>Itanium-based machines running Linux and HP-UX.</li>
Chris Lattner2c7b0872004-06-01 18:22:41 +0000[diff] [blame]255</ul>
256
Brian Gaekee3e557e2004-05-09 05:28:35 +0000[diff] [blame]257<p>The core LLVM infrastructure uses
258<a href="http://www.gnu.org/software/autoconf/">GNU autoconf</a> to adapt itself
259to the machine and operating system on which it is built. However, minor
260porting may be required to get LLVM to work on new platforms. We welcome your
261portability patches and reports of successful builds or error messages.</p>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]262
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]263</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]264
265<!-- *********************************************************************** -->
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]266<div class="doc_section">
267 <a name="knownproblems">Known Problems</a>
268</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]269<!-- *********************************************************************** -->
270
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]271<div class="doc_text">
272
273<p>This section contains all known problems with the LLVM system, listed by
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]274component. As new problems are discovered, they will be added to these
Chris Lattnerb84f3322003-12-12 21:22:16 +0000[diff] [blame]275sections. If you run into a problem, please check the <a
Chris Lattnera69595e2005-10-29 07:07:09 +0000[diff] [blame]276href="http://llvm.org/bugs/">LLVM bug database</a> and submit a bug if
Chris Lattnerb84f3322003-12-12 21:22:16 +0000[diff] [blame]277there isn't already one.</p>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]278
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]279</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]280
Chris Lattnerb911de42004-03-14 02:03:02 +0000[diff] [blame]281<!-- ======================================================================= -->
282<div class="doc_subsection">
283 <a name="experimental">Experimental features included with this release</a>
284</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]285
Chris Lattnerb911de42004-03-14 02:03:02 +0000[diff] [blame]286<div class="doc_text">
287
Misha Brukmanfa50a222004-05-12 21:46:05 +0000[diff] [blame]288<p>The following components of this LLVM release are either untested, known to
289be broken or unreliable, or are in early development. These components should
290not be relied on, and bugs should not be filed against them, but they may be
291useful to some people. In particular, if you would like to work on one of these
Chris Lattner05a225b2006-08-09 04:08:52 +0000[diff] [blame]292components, please contact us on the <a href="http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev">LLVMdev list</a>.</p>
Chris Lattnerb911de42004-03-14 02:03:02 +0000[diff] [blame]293
294<ul>
Chris Lattnercdc44ed2008-02-06 18:00:06 +0000[diff] [blame]295<li>The <tt>-cee</tt> pass is known to be buggy and will be removed in
296 LLVM 2.3.</li>
Chris Lattner7422bce2008-02-06 06:30:34 +0000[diff] [blame]297<li>The MSIL, IA64, Alpha, and MIPS backends are experimental.</li>
298<li>The LLC "<tt>-filetype=asm</tt>" (the default) is the only supported
299 value for this option.</li>
300<li>The llvmc tool is not supported.</li>
Chris Lattnerb911de42004-03-14 02:03:02 +0000[diff] [blame]301</ul>
302
303</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]304
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]305<!-- ======================================================================= -->
306<div class="doc_subsection">
Chris Lattnerb81f10e2006-11-18 07:51:14 +0000[diff] [blame]307 <a name="x86-be">Known problems with the X86 back-end</a>
John Criswell3bdbd302005-11-08 21:11:33 +0000[diff] [blame]308</div>
309
310<div class="doc_text">
311
312<ul>
Chris Lattnerb81f10e2006-11-18 07:51:14 +0000[diff] [blame]313<li>The X86 backend does not yet support <a href="http://llvm.org/PR879">inline
Chris Lattner98a33492007-05-09 04:58:11 +0000[diff] [blame]314 assembly that uses the X86 floating point stack</a>.</li>
Chris Lattner8e061162007-09-26 06:01:35 +0000[diff] [blame]315<li>The X86 backend occasionally has <a href="http://llvm.org/PR1649">alignment
316 problems</a> on operating systems that don't require 16-byte stack alignment
317 (including most non-darwin OS's like linux).</li>
Chris Lattnerb81f10e2006-11-18 07:51:14 +0000[diff] [blame]318</ul>
319
320</div>
321
322<!-- ======================================================================= -->
323<div class="doc_subsection">
324 <a name="ppc-be">Known problems with the PowerPC back-end</a>
325</div>
326
327<div class="doc_text">
328
329<ul>
Nicolas Geoffray77d99502007-05-15 09:21:28 +0000[diff] [blame]330<li>The Linux PPC32/ABI support needs testing for the interpreter and static
Chris Lattnerbee7b322007-05-23 04:39:32 +0000[diff] [blame]331compilation, and lacks support for debug information.</li>
Chris Lattnerb81f10e2006-11-18 07:51:14 +0000[diff] [blame]332</ul>
333
334</div>
335
336<!-- ======================================================================= -->
337<div class="doc_subsection">
Chris Lattner97beb512007-05-14 06:56:09 +0000[diff] [blame]338 <a name="arm-be">Known problems with the ARM back-end</a>
339</div>
340
341<div class="doc_text">
342
343<ul>
Chris Lattnerbee7b322007-05-23 04:39:32 +0000[diff] [blame]344<li>Thumb mode works only on ARMv6 or higher processors. On sub-ARMv6
Duncan Sands47fc0a22007-09-26 15:59:54 +0000[diff] [blame]345processors, thumb programs can crash or produce wrong
Chris Lattnerbee7b322007-05-23 04:39:32 +0000[diff] [blame]346results (<a href="http://llvm.org/PR1388">PR1388</a>).</li>
Chris Lattner97beb512007-05-14 06:56:09 +0000[diff] [blame]347<li>Compilation for ARM Linux OABI (old ABI) is supported, but not fully tested.
348</li>
Chris Lattnerbee7b322007-05-23 04:39:32 +0000[diff] [blame]349<li>There is a bug in QEMU-ARM (<= 0.9.0) which causes it to incorrectly execute
350programs compiled with LLVM. Please use more recent versions of QEMU.</li>
Chris Lattner97beb512007-05-14 06:56:09 +0000[diff] [blame]351</ul>
352
353</div>
354
355<!-- ======================================================================= -->
356<div class="doc_subsection">
Chris Lattnerb81f10e2006-11-18 07:51:14 +0000[diff] [blame]357 <a name="sparc-be">Known problems with the SPARC back-end</a>
358</div>
359
360<div class="doc_text">
361
362<ul>
363<li>The SPARC backend only supports the 32-bit SPARC ABI (-m32), it does not
364 support the 64-bit SPARC ABI (-m64).</li>
365</ul>
366
367</div>
368
369<!-- ======================================================================= -->
370<div class="doc_subsection">
Chris Lattnerb81f10e2006-11-18 07:51:14 +0000[diff] [blame]371 <a name="alpha-be">Known problems with the Alpha back-end</a>
372</div>
373
374<div class="doc_text">
375
376<ul>
377
378<li>On 21164s, some rare FP arithmetic sequences which may trap do not have the
379appropriate nops inserted to ensure restartability.</li>
380
John Criswell3bdbd302005-11-08 21:11:33 +0000[diff] [blame]381</ul>
382</div>
383
Chris Lattnerb81f10e2006-11-18 07:51:14 +0000[diff] [blame]384<!-- ======================================================================= -->
385<div class="doc_subsection">
386 <a name="ia64-be">Known problems with the IA64 back-end</a>
387</div>
388
389<div class="doc_text">
390
391<ul>
392
393<li>C++ programs are likely to fail on IA64, as calls to <tt>setjmp</tt> are
394made where the argument is not 16-byte aligned, as required on IA64. (Strictly
395speaking this is not a bug in the IA64 back-end; it will also be encountered
396when building C++ programs using the C back-end.)</li>
397
398<li>The C++ front-end does not use <a href="http://llvm.org/PR406">IA64
399ABI compliant layout of v-tables</a>. In particular, it just stores function
400pointers instead of function descriptors in the vtable. This bug prevents
401mixing C++ code compiled with LLVM with C++ objects compiled by other C++
402compilers.</li>
403
404<li>There are a few ABI violations which will lead to problems when mixing LLVM
405output with code built with other compilers, particularly for floating-point
406programs.</li>
407
408<li>Defining vararg functions is not supported (but calling them is ok).</li>
409
Chris Lattner98a33492007-05-09 04:58:11 +0000[diff] [blame]410<li>The Itanium backend has bitrotted somewhat.</li>
Chris Lattnerb81f10e2006-11-18 07:51:14 +0000[diff] [blame]411</ul>
412
413</div>
414
415<!-- ======================================================================= -->
416<div class="doc_subsection">
Chris Lattner97beb512007-05-14 06:56:09 +0000[diff] [blame]417 <a name="c-be">Known problems with the C back-end</a>
Chris Lattnerb81f10e2006-11-18 07:51:14 +0000[diff] [blame]418</div>
419
420<div class="doc_text">
421
422<ul>
Chris Lattner97beb512007-05-14 06:56:09 +0000[diff] [blame]423<li><a href="http://llvm.org/PR802">The C backend does not support inline
424 assembly code</a>.</li>
Chris Lattner8e061162007-09-26 06:01:35 +0000[diff] [blame]425<li><a href="http://llvm.org/PR1126">The C backend does not support vectors
426 yet</a>.</li>
Chris Lattner8e061162007-09-26 06:01:35 +0000[diff] [blame]427<li><a href="http://llvm.org/PR1658">The C backend violates the ABI of common
428 C++ programs</a>, preventing intermixing between C++ compiled by the CBE and
429 C++ code compiled with LLC or native compilers.</li>
Chris Lattnerb81f10e2006-11-18 07:51:14 +0000[diff] [blame]430</ul>
431
432</div>
John Criswell3bdbd302005-11-08 21:11:33 +0000[diff] [blame]433
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]434
435<!-- ======================================================================= -->
436<div class="doc_subsection">
437 <a name="c-fe">Known problems with the C front-end</a>
438</div>
Chris Lattner178f3db2003-10-02 05:07:23 +0000[diff] [blame]439
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]440<!-- _______________________________________________________________________ -->
Chris Lattner5a8a7282003-12-14 05:03:43 +0000[diff] [blame]441<div class="doc_subsubsection">Bugs</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]442
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]443<div class="doc_text">
Chris Lattner72a269f2006-03-03 00:34:26 +0000[diff] [blame]444
Chris Lattnercdc44ed2008-02-06 18:00:06 +0000[diff] [blame]445<p>llvm-gcc does not currently support <a href="http://llvm.org/PR869">Link-Time
446Optimization</a> on most platforms "out-of-the-box". Please inquire on the
Chris Lattner97beb512007-05-14 06:56:09 +0000[diff] [blame]447llvmdev mailing list if you are interested.</p>
Chris Lattner44124232006-08-08 17:27:28 +0000[diff] [blame]448
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]449</div>
450
451<!-- _______________________________________________________________________ -->
452<div class="doc_subsubsection">
453 Notes
454</div>
455
456<div class="doc_text">
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]457<ul>
458
Chris Lattner2f131fe2007-05-17 22:02:24 +0000[diff] [blame]459<li><p>llvm-gcc does <b>not</b> support <tt>__builtin_apply</tt> yet.
460 See <a href="http://gcc.gnu.org/onlinedocs/gcc/Constructing-Calls.html#Constructing%20Calls">Constructing Calls</a>: Dispatching a call to another function.</p>
461</li>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]462
Duncan Sandsea7a3262007-05-18 09:04:20 +0000[diff] [blame]463<li><p>llvm-gcc <b>partially</b> supports these GCC extensions:</p>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]464 <ol>
Duncan Sands47fc0a22007-09-26 15:59:54 +0000[diff] [blame]465 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Nested-Functions.html#Nested%20Functions">Nested Functions</a>:
466
467 As in Algol and Pascal, lexical scoping of functions.
468 Nested functions are supported, but llvm-gcc does not support
Duncan Sands755d9302007-09-26 16:24:52 +0000[diff] [blame]469 taking the address of a nested function (except on the X86-32 target)
Duncan Sands47fc0a22007-09-26 15:59:54 +0000[diff] [blame]470 or non-local gotos.</li>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]471
472 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Function-Attributes.html#Function%20Attributes">Function Attributes</a>:
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]473
John Criswell86a3a482003-12-18 16:43:17 +0000[diff] [blame]474 Declaring that functions have no side effects or that they can never
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]475 return.<br>
476
Anton Korobeynikovb8a47242007-11-16 11:12:01 +0000[diff] [blame]477 <b>Supported:</b> <tt>alias</tt>, <tt>always_inline</tt>, <tt>cdecl</tt>,
478 <tt>const</tt>, <tt>constructor</tt>, <tt>destructor</tt>,
Anton Korobeynikove7cbbfc2006-11-18 08:04:48 +0000[diff] [blame]479 <tt>deprecated</tt>, <tt>fastcall</tt>, <tt>format</tt>,
Anton Korobeynikovb8a47242007-11-16 11:12:01 +0000[diff] [blame]480 <tt>format_arg</tt>, <tt>non_null</tt>, <tt>noinline</tt>,
481 <tt>noreturn</tt>, <tt>pure</tt>, <tt>regparm</tt>
Anton Korobeynikovc7f9f3d2007-01-23 12:35:46 +0000[diff] [blame]482 <tt>section</tt>, <tt>stdcall</tt>, <tt>unused</tt>, <tt>used</tt>,
483 <tt>visibility</tt>, <tt>warn_unused_result</tt>, <tt>weak</tt><br>
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]484
Anton Korobeynikovb8a47242007-11-16 11:12:01 +0000[diff] [blame]485 <b>Ignored:</b> <tt>nothrow</tt>, <tt>malloc</tt>,
486 <tt>no_instrument_function</tt></li>
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]487 </ol>
Chris Lattner2f131fe2007-05-17 22:02:24 +0000[diff] [blame]488</li>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]489
Chris Lattner2f131fe2007-05-17 22:02:24 +0000[diff] [blame]490<li><p>llvm-gcc supports the vast majority of GCC extensions, including:</p>
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]491
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]492 <ol>
Chris Lattner2f131fe2007-05-17 22:02:24 +0000[diff] [blame]493 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Pragmas.html#Pragmas">Pragmas</a>: Pragmas accepted by GCC.</li>
494 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Local-Labels.html#Local%20Labels">Local Labels</a>: Labels local to a block.</li>
495 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Other-Builtins.html#Other%20Builtins">Other Builtins</a>:
496 Other built-in functions.</li>
497 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Variable-Attributes.html#Variable%20Attributes">Variable Attributes</a>:
498 Specifying attributes of variables.</li>
499 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Type-Attributes.html#Type%20Attributes">Type Attributes</a>: Specifying attributes of types.</li>
500 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Thread_002dLocal.html">Thread-Local</a>: Per-thread variables.</li>
501 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Variable-Length.html#Variable%20Length">Variable Length</a>:
502 Arrays whose length is computed at run time.</li>
Chris Lattnerd3dc8502004-03-16 08:54:07 +0000[diff] [blame]503 <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 Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]504 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Statement-Exprs.html#Statement%20Exprs">Statement Exprs</a>: Putting statements and declarations inside expressions.</li>
505 <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 Lattnerce33a1b2004-06-22 03:48:17 +0000[diff] [blame]506 <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 Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]507 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Conditionals.html#Conditionals">Conditionals</a>: Omitting the middle operand of a <code>?:</code> expression.</li>
508 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Long-Long.html#Long%20Long">Long Long</a>: Double-word integers.</li>
509 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Complex.html#Complex">Complex</a>: Data types for complex numbers.</li>
510 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Hex-Floats.html#Hex%20Floats">Hex Floats</a>:Hexadecimal floating-point constants.</li>
511 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html#Zero%20Length">Zero Length</a>: Zero-length arrays.</li>
512 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Empty-Structures.html#Empty%20Structures">Empty Structures</a>: Structures with no members.</li>
513 <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>
514 <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 Lattnerb81f10e2006-11-18 07:51:14 +0000[diff] [blame]515 <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>
516 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Constraints.html#Constraints">Constraints</a>: Constraints for asm operands.</li>
517 <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>
518 <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>
519 <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>
520 <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 Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]521 <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 Brukman8395d732003-12-12 04:37:31 +0000[diff] [blame]522 <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 Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]523 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Initializers.html#Initializers">Initializers</a>: Non-constant initializers.</li>
John Criswell86a3a482003-12-18 16:43:17 +0000[diff] [blame]524 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Compound-Literals.html#Compound%20Literals">Compound Literals</a>: Compound literals give structures, unions,
525or arrays as values.</li>
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]526 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Designated-Inits.html#Designated%20Inits">Designated Inits</a>: Labeling elements of initializers.</li>
Misha Brukman8395d732003-12-12 04:37:31 +0000[diff] [blame]527 <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 Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]528 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Case-Ranges.html#Case%20Ranges">Case Ranges</a>: `case 1 ... 9' and such.</li>
529 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Mixed-Declarations.html#Mixed%20Declarations">Mixed Declarations</a>: Mixing declarations and code.</li>
530 <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 Lattner7591b822004-12-08 18:29:38 +0000[diff] [blame]531 <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 Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]532 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Dollar-Signs.html#Dollar%20Signs">Dollar Signs</a>: Dollar sign is allowed in identifiers.</li>
533 <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>
534 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Alignment.html#Alignment">Alignment</a>: Inquiring about the alignment of a type or variable.</li>
535 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Inline.html#Inline">Inline</a>: Defining inline functions (as fast as macros).</li>
536 <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>
537 <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>
538 <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 Lattner3646dad2004-02-14 04:08:29 +0000[diff] [blame]539 <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 Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]540 <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>
541 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Attribute-Syntax.html#Attribute%20Syntax">Attribute Syntax</a>: Formal syntax for attributes.</li>
Misha Brukman7cb4e382003-11-22 01:00:11 +0000[diff] [blame]542 </ol></li>
543
544</ul>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]545
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]546<p>If you run into GCC extensions which have not been included in any of these
547lists, please let us know (also including whether or not they work).</p>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]548
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]549</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]550
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]551<!-- ======================================================================= -->
552<div class="doc_subsection">
553 <a name="c++-fe">Known problems with the C++ front-end</a>
554</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]555
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]556<div class="doc_text">
557
Chris Lattner97beb512007-05-14 06:56:09 +0000[diff] [blame]558<p>The C++ front-end is considered to be fully
Chris Lattnerb5bb5972004-12-07 08:04:13 +0000[diff] [blame]559tested and works for a number of non-trivial programs, including LLVM
Chris Lattner97beb512007-05-14 06:56:09 +0000[diff] [blame]560itself, Qt, Mozilla, etc.</p>
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]561
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]562<ul>
Chris Lattner7422bce2008-02-06 06:30:34 +0000[diff] [blame]563<li>Exception handling only works well on the X86 and PowerPC targets.</li>
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]564</ul>
Chris Lattner46ecf612003-10-07 22:14:37 +0000[diff] [blame]565
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]566</div>
567
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]568
Chris Lattnerb62a5f02005-05-15 16:01:20 +0000[diff] [blame]569
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]570<!-- *********************************************************************** -->
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]571<div class="doc_section">
572 <a name="additionalinfo">Additional Information</a>
573</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]574<!-- *********************************************************************** -->
575
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]576<div class="doc_text">
577
Chris Lattnercb5596d2005-05-16 17:13:10 +0000[diff] [blame]578<p>A wide variety of additional information is available on the <a
Chris Lattnere0c1df42007-05-18 00:44:29 +0000[diff] [blame]579href="http://llvm.org">LLVM web page</a>, in particular in the <a
580href="http://llvm.org/docs/">documentation</a> section. The web page also
Reid Spencerc7f87f22007-07-09 08:04:31 +0000[diff] [blame]581contains versions of the API documentation which is up-to-date with the
582Subversion version of the source code.
Misha Brukman96158092005-03-30 19:14:24 +0000[diff] [blame]583You can access versions of these documents specific to this release by going
584into the "<tt>llvm/doc/</tt>" directory in the LLVM tree.</p>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]585
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]586<p>If you have any questions or comments about LLVM, please feel free to contact
Chris Lattnera69595e2005-10-29 07:07:09 +0000[diff] [blame]587us via the <a href="http://llvm.org/docs/#maillist"> mailing
Chris Lattnerb84f3322003-12-12 21:22:16 +0000[diff] [blame]588lists</a>.</p>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]589
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]590</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]591
592<!-- *********************************************************************** -->
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]593
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]594<hr>
Misha Brukman68aab3b2003-11-22 01:23:39 +0000[diff] [blame]595<address>
Misha Brukman8834af92003-12-21 22:53:21 +0000[diff] [blame]596 <a href="http://jigsaw.w3.org/css-validator/check/referer"><img
Misha Brukman68aab3b2003-11-22 01:23:39 +0000[diff] [blame]597 src="http://jigsaw.w3.org/css-validator/images/vcss" alt="Valid CSS!"></a>
598 <a href="http://validator.w3.org/check/referer"><img
599 src="http://www.w3.org/Icons/valid-html401" alt="Valid HTML 4.01!" /></a>
600
Chris Lattnere0c1df42007-05-18 00:44:29 +0000[diff] [blame]601 <a href="http://llvm.org/">LLVM Compiler Infrastructure</a><br>
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]602 Last modified: $Date$
Misha Brukman68aab3b2003-11-22 01:23:39 +0000[diff] [blame]603</address>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]604
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