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gerrit-public.fairphone.software / toolchain / llvm-project / 4386e4a8269e7d0ab0a014c327e70b7565af2be9 / . / llvm / docs / ReleaseNotes.html
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Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]6 <link rel="stylesheet" href="llvm.css" type="text/css">
John Criswellfee5f112005-05-18 20:28:46 +0000[diff] [blame]7 <title>LLVM 1.6 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
John Criswellfee5f112005-05-18 20:28:46 +0000[diff] [blame]11<div class="doc_title">LLVM 1.6 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 Lattnerf3a7c242004-12-09 22:22:58 +0000[diff] [blame]23 <p>Written by the <a href="http://llvm.cs.uiuc.edu">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
26<!-- *********************************************************************** -->
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]27<div class="doc_section">
28 <a name="intro">Introduction</a>
29</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]30<!-- *********************************************************************** -->
31
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]32<div class="doc_text">
33
34<p>This document contains the release notes for the LLVM compiler
John Criswellfee5f112005-05-18 20:28:46 +0000[diff] [blame]35infrastructure, release 1.6. Here we describe the status of LLVM, including any
Chris Lattner406bddf2005-05-15 05:44:51 +0000[diff] [blame]36known problems and major improvements from the previous release. The most
37up-to-date version of this document can be found on the <a
John Criswellfee5f112005-05-18 20:28:46 +0000[diff] [blame]38href="http://llvm.cs.uiuc.edu/releases/1.6/">LLVM 1.6 web site</a>. If you are
John Criswell86a3a482003-12-18 16:43:17 +0000[diff] [blame]39not reading this on the LLVM web pages, you should probably go there because
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]40this document may be updated after the release.</p>
Chris Lattner62495762003-10-02 16:38:05 +0000[diff] [blame]41
Chris Lattnerb5bb5972004-12-07 08:04:13 +0000[diff] [blame]42<p>For more information about LLVM, including information about the latest
43release, please check out the <a href="http://llvm.cs.uiuc.edu">main LLVM
Chris Lattnere7525b52003-10-07 21:38:31 +0000[diff] [blame]44web site</a>. If you have questions or comments, the <a
45href="http://mail.cs.uiuc.edu/mailman/listinfo/llvmdev">LLVM developer's mailing
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]46list</a> is a good place to send them.</p>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]47
Chris Lattnerf3a7c242004-12-09 22:22:58 +0000[diff] [blame]48<p>Note that if you are reading this file from CVS or the main LLVM web page,
49this document applies to the <i>next</i> release, not the current one. To see
50the release notes for the current or previous releases, see the <a
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]51href="http://llvm.cs.uiuc.edu/releases/">releases page</a>.</p>
52
53</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]54
55<!-- *********************************************************************** -->
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]56<div class="doc_section">
57 <a name="whatsnew">What's New?</a>
58</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]59<!-- *********************************************************************** -->
60
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]61<div class="doc_text">
62
John Criswellfee5f112005-05-18 20:28:46 +0000[diff] [blame]63<p>This is the seventh public release of the LLVM Compiler Infrastructure.</p>
Chris Lattnerba7bd472003-12-06 20:22:41 +0000[diff] [blame]64
John Criswellfee5f112005-05-18 20:28:46 +0000[diff] [blame]65<p>LLVM 1.6 is known to correctly compile a wide range of C and C++ programs,
66includes bug fixes for those problems found since the 1.5 release, and includes
Chris Lattner7e1f2622005-05-16 16:56:09 +0000[diff] [blame]67a large number of new features and enhancements, described below.</p>
Chris Lattnerba7bd472003-12-06 20:22:41 +0000[diff] [blame]68
Chris Lattner21a90402004-05-24 04:50:25 +0000[diff] [blame]69</div>
70
Chris Lattnerba7bd472003-12-06 20:22:41 +0000[diff] [blame]71<!--=========================================================================-->
Chris Lattner406bddf2005-05-15 05:44:51 +0000[diff] [blame]72<div class="doc_subsection">
John Criswellfee5f112005-05-18 20:28:46 +0000[diff] [blame]73<a name="newfeatures">New Features in LLVM 1.6</a>
Chris Lattner21a90402004-05-24 04:50:25 +0000[diff] [blame]74</div>
Brian Gaeke8b05e4f2004-01-16 21:55:04 +0000[diff] [blame]75
Chris Lattnerf30c73c2005-05-18 22:23:56 +0000[diff] [blame]76<div class="doc_text">
77<h1>
78 See <a href="/releases/1.5/docs/ReleaseNotes.html">LLVM 1.5 Release Notes</a>
79</h1>
Reid Spencer4386e4a2005-07-12 16:36:24 +0000[diff] [blame^]80<ol>
81 <li>The JIT now uses mutexes to protect its internal data structures. This
82 allows multi-threaded programs to be run from the JIT or interpreter without
83 corruption of the internal data structures. See
84 <a href="http://llvm.cs.uiuc.edu/PR418">PR418</a> and
85 <a href="http://llvm.cs.uiuc.edu/PR540">PR540</a> for the details.
86 </li>
87</ol>
Chris Lattnerf30c73c2005-05-18 22:23:56 +0000[diff] [blame]88</div>
89
Brian Gaeke8b05e4f2004-01-16 21:55:04 +0000[diff] [blame]90<!--=========================================================================-->
Chris Lattner406bddf2005-05-15 05:44:51 +0000[diff] [blame]91<div class="doc_subsection">
John Criswellfee5f112005-05-18 20:28:46 +0000[diff] [blame]92<a name="codequality">Code Quality Improvements in LLVM 1.6</a>
Chris Lattner23257062004-05-23 20:42:08 +0000[diff] [blame]93</div>
Chris Lattner639579c2003-10-27 17:06:39 +0000[diff] [blame]94
Chris Lattner7e1f2622005-05-16 16:56:09 +0000[diff] [blame]95<!--=========================================================================-->
96<div class="doc_subsection">
John Criswellfee5f112005-05-18 20:28:46 +0000[diff] [blame]97<a name="codequality">Code Generator Improvements in LLVM 1.6</a>
Chris Lattner7e1f2622005-05-16 16:56:09 +0000[diff] [blame]98</div>
99
Chris Lattnerba7bd472003-12-06 20:22:41 +0000[diff] [blame]100<!--=========================================================================-->
Chris Lattner406bddf2005-05-15 05:44:51 +0000[diff] [blame]101<div class="doc_subsection">
John Criswellfee5f112005-05-18 20:28:46 +0000[diff] [blame]102<a name="bugfix">Significant Bugs Fixed in LLVM 1.6</a>
Chris Lattner21a90402004-05-24 04:50:25 +0000[diff] [blame]103</div>
Reid Spencer3e58f582004-05-23 17:23:13 +0000[diff] [blame]104
John Criswell51e2a482005-06-29 16:22:34 +0000[diff] [blame]105<div class="doc_text">
106<ol>
107 <li><a href="http://llvm.cs.uiuc.edu/PR591">[simplify-libcalls] The simplify-libcalls pass generates ill-formed LLVM code</a>.</li>
108</ol>
109</div>
110
Chris Lattner62495762003-10-02 16:38:05 +0000[diff] [blame]111<!-- *********************************************************************** -->
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]112<div class="doc_section">
113 <a name="portability">Portability and Supported Platforms</a>
114</div>
Chris Lattner62495762003-10-02 16:38:05 +0000[diff] [blame]115<!-- *********************************************************************** -->
116
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]117<div class="doc_text">
118
John Criswell64307722004-12-08 20:35:47 +0000[diff] [blame]119<p>LLVM is known to work on the following platforms:</p>
Chris Lattner2c7b0872004-06-01 18:22:41 +0000[diff] [blame]120
121<ul>
Reid Spencer9803b402005-05-17 02:47:27 +0000[diff] [blame]122 <li>Intel and AMD machines running Red Hat Linux, Fedora Core and FreeBSD
123 (and probably other unix-like systems).</li>
Chris Lattner2c7b0872004-06-01 18:22:41 +0000[diff] [blame]124<li>Sun UltraSPARC workstations running Solaris 8.</li>
Chris Lattnerb5bb5972004-12-07 08:04:13 +0000[diff] [blame]125<li>Intel and AMD machines running on Win32 with the Cygwin libraries (limited
126 support is available for native builds with Visual C++).</li>
127<li>PowerPC-based Mac OS X systems, running 10.2 and above.</li>
John Criswelld5234922005-05-13 20:28:15 +0000[diff] [blame]128<li>Alpha-based machines running Debian GNU/Linux.</li>
129<li>Itanium-based machines running Linux and HP-UX.</li>
Chris Lattner2c7b0872004-06-01 18:22:41 +0000[diff] [blame]130</ul>
131
Brian Gaekee3e557e2004-05-09 05:28:35 +0000[diff] [blame]132<p>The core LLVM infrastructure uses
133<a href="http://www.gnu.org/software/autoconf/">GNU autoconf</a> to adapt itself
134to the machine and operating system on which it is built. However, minor
135porting may be required to get LLVM to work on new platforms. We welcome your
136portability patches and reports of successful builds or error messages.</p>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]137
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]138</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]139
140<!-- *********************************************************************** -->
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]141<div class="doc_section">
142 <a name="knownproblems">Known Problems</a>
143</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]144<!-- *********************************************************************** -->
145
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]146<div class="doc_text">
147
148<p>This section contains all known problems with the LLVM system, listed by
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]149component. As new problems are discovered, they will be added to these
Chris Lattnerb84f3322003-12-12 21:22:16 +0000[diff] [blame]150sections. If you run into a problem, please check the <a
John Criswell86a3a482003-12-18 16:43:17 +0000[diff] [blame]151href="http://llvm.cs.uiuc.edu/bugs/">LLVM bug database</a> and submit a bug if
Chris Lattnerb84f3322003-12-12 21:22:16 +0000[diff] [blame]152there isn't already one.</p>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]153
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]154</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]155
Chris Lattnerb911de42004-03-14 02:03:02 +0000[diff] [blame]156<!-- ======================================================================= -->
157<div class="doc_subsection">
158 <a name="experimental">Experimental features included with this release</a>
159</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]160
Chris Lattnerb911de42004-03-14 02:03:02 +0000[diff] [blame]161<div class="doc_text">
162
Misha Brukmanfa50a222004-05-12 21:46:05 +0000[diff] [blame]163<p>The following components of this LLVM release are either untested, known to
164be broken or unreliable, or are in early development. These components should
165not be relied on, and bugs should not be filed against them, but they may be
166useful to some people. In particular, if you would like to work on one of these
167components, please contact us on the llvmdev list.</p>
Chris Lattnerb911de42004-03-14 02:03:02 +0000[diff] [blame]168
169<ul>
Chris Lattnerb5bb5972004-12-07 08:04:13 +0000[diff] [blame]170<li>The following passes are incomplete or buggy, and may be removed in future
Chris Lattner38389b12005-01-28 06:13:52 +0000[diff] [blame]171 releases: <tt>-cee, -branch-combine, -instloops, -paths, -pre</tt></li>
Chris Lattnerb5bb5972004-12-07 08:04:13 +0000[diff] [blame]172<li>The <tt>llvm-db</tt> tool is in a very early stage of development, but can
173 be used to step through programs and inspect the stack.</li>
Misha Brukman96158092005-03-30 19:14:24 +0000[diff] [blame]174<li>The "iterative scan" register allocator (enabled with
175 <tt>-regalloc=iterativescan</tt>) is not stable.</li>
John Criswelld5234922005-05-13 20:28:15 +0000[diff] [blame]176<li>The SparcV8, Alpha, and IA64 code generators are experimental.</li>
Chris Lattnerb911de42004-03-14 02:03:02 +0000[diff] [blame]177</ul>
178
179</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]180
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]181<!-- ======================================================================= -->
182<div class="doc_subsection">
183 <a name="core">Known problems with the LLVM Core</a>
184</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]185
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]186<div class="doc_text">
187
188<ul>
Misha Brukman96158092005-03-30 19:14:24 +0000[diff] [blame]189 <li>In the JIT, <tt>dlsym()</tt> on a symbol compiled by the JIT will not
190 work.</li>
Reid Spencer493d9c22004-11-25 22:38:30 +0000[diff] [blame]191 <li><a href="http://llvm.cs.uiuc.edu/PR240">The lower-invoke pass does not
192 mark values live across a setjmp as volatile</a>. This missing feature
193 only affects targets whose setjmp/longjmp libraries do not save and restore
194 the entire register file.</li>
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]195</ul>
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]196</div>
197
198<!-- ======================================================================= -->
199<div class="doc_subsection">
200 <a name="c-fe">Known problems with the C front-end</a>
201</div>
Chris Lattner178f3db2003-10-02 05:07:23 +0000[diff] [blame]202
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]203<!-- _______________________________________________________________________ -->
Chris Lattner5a8a7282003-12-14 05:03:43 +0000[diff] [blame]204<div class="doc_subsubsection">Bugs</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]205
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]206<div class="doc_text">
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]207<ul>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]208<li>C99 Variable sized arrays do not release stack memory when they go out of
209 scope. Thus, the following program may run out of stack space:
210<pre>
211 for (i = 0; i != 1000000; ++i) {
212 int X[n];
213 foo(X);
214 }
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]215</pre></li>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]216
Misha Brukmanfa50a222004-05-12 21:46:05 +0000[diff] [blame]217<li>Initialization of global union variables can only be done <a
Misha Brukman68ef9a92004-12-04 00:45:09 +0000[diff] [blame]218href="http://llvm.cs.uiuc.edu/PR162">with the largest union member</a>.</li>
Chris Lattner1ab58dd2004-03-16 21:39:04 +0000[diff] [blame]219
John Criswell86a3a482003-12-18 16:43:17 +0000[diff] [blame]220</ul>
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]221</div>
222
223<!-- _______________________________________________________________________ -->
224<div class="doc_subsubsection">
225 Notes
226</div>
227
228<div class="doc_text">
229
230<ul>
231
232<li>Inline assembly is not yet supported.</li>
Chris Lattnerd2a74272003-10-27 18:30:37 +0000[diff] [blame]233
234<li>"long double" is transformed by the front-end into "double". There is no
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]235support for floating point data types of any size other than 32 and 64
236bits.</li>
237
238<li>The following Unix system functionality has not been tested and may not
239work:
Misha Brukman7cb4e382003-11-22 01:00:11 +0000[diff] [blame]240 <ol>
241 <li><tt>sigsetjmp</tt>, <tt>siglongjmp</tt> - These are not turned into the
242 appropriate <tt>invoke</tt>/<tt>unwind</tt> instructions. Note that
243 <tt>setjmp</tt> and <tt>longjmp</tt> <em>are</em> compiled correctly.
244 <li><tt>getcontext</tt>, <tt>setcontext</tt>, <tt>makecontext</tt>
245 - These functions have not been tested.
246 </ol></li>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]247
248<li>Although many GCC extensions are supported, some are not. In particular,
249 the following extensions are known to <b>not be</b> supported:
250 <ol>
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]251 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Local-Labels.html#Local%20Labels">Local Labels</a>: Labels local to a block.</li>
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]252 <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>
253 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Constructing-Calls.html#Constructing%20Calls">Constructing Calls</a>: Dispatching a call to another function.</li>
254 <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>
John Criswell86a3a482003-12-18 16:43:17 +0000[diff] [blame]255 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Constraints.html#Constraints">Constraints</a>: Constraints for asm operands.</li>
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]256 <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>
257 <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>
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]258 <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>
259 <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>
Tanya Lattner63371342004-12-08 18:25:34 +0000[diff] [blame]260 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Thread_002dLocal.html">Thread-Local</a>: Per-thread variables.</li>
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]261 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Pragmas.html#Pragmas">Pragmas</a>: Pragmas accepted by GCC.</li>
Misha Brukman7cb4e382003-11-22 01:00:11 +0000[diff] [blame]262 </ol>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]263
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]264 <p>The following GCC extensions are <b>partially</b> supported. An ignored
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]265 attribute means that the LLVM compiler ignores the presence of the attribute,
266 but the code should still work. An unsupported attribute is one which is
John Criswell86a3a482003-12-18 16:43:17 +0000[diff] [blame]267 ignored by the LLVM compiler and will cause a different interpretation of
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]268 the program.</p>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]269
270 <ol>
271 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Variable-Length.html#Variable%20Length">Variable Length</a>:
272 Arrays whose length is computed at run time.<br>
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]273 Supported, but allocated stack space is not freed until the function returns (noted above).</li>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]274
275 <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]276
John Criswell86a3a482003-12-18 16:43:17 +0000[diff] [blame]277 Declaring that functions have no side effects or that they can never
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]278 return.<br>
279
280 <b>Supported:</b> <tt>format</tt>, <tt>format_arg</tt>, <tt>non_null</tt>,
John Criswell64307722004-12-08 20:35:47 +0000[diff] [blame]281 <tt>noreturn</tt>, <tt>constructor</tt>, <tt>destructor</tt>,
282 <tt>unused</tt>,
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]283 <tt>deprecated</tt>, <tt>warn_unused_result</tt>, <tt>weak</tt><br>
284
John Criswell64307722004-12-08 20:35:47 +0000[diff] [blame]285 <b>Ignored:</b> <tt>noinline</tt>,
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]286 <tt>always_inline</tt>, <tt>pure</tt>, <tt>const</tt>, <tt>nothrow</tt>,
287 <tt>malloc</tt>, <tt>no_instrument_function</tt>, <tt>cdecl</tt><br>
288
289 <b>Unsupported:</b> <tt>used</tt>, <tt>section</tt>, <tt>alias</tt>,
290 <tt>visibility</tt>, <tt>regparm</tt>, <tt>stdcall</tt>,
291 <tt>fastcall</tt>, all other target specific attributes</li>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]292
293 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Variable-Attributes.html#Variable%20Attributes">Variable Attributes</a>:
294 Specifying attributes of variables.<br>
295 <b>Supported:</b> <tt>cleanup</tt>, <tt>common</tt>, <tt>nocommon</tt>,
296 <tt>deprecated</tt>, <tt>transparent_union</tt>,
297 <tt>unused</tt>, <tt>weak</tt><br>
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]298
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]299 <b>Unsupported:</b> <tt>aligned</tt>, <tt>mode</tt>, <tt>packed</tt>,
300 <tt>section</tt>, <tt>shared</tt>, <tt>tls_model</tt>,
301 <tt>vector_size</tt>, <tt>dllimport</tt>,
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]302 <tt>dllexport</tt>, all target specific attributes.</li>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]303
Misha Brukman8395d732003-12-12 04:37:31 +0000[diff] [blame]304 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Type-Attributes.html#Type%20Attributes">Type Attributes</a>: Specifying attributes of types.<br>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]305 <b>Supported:</b> <tt>transparent_union</tt>, <tt>unused</tt>,
Misha Brukman8395d732003-12-12 04:37:31 +0000[diff] [blame]306 <tt>deprecated</tt>, <tt>may_alias</tt><br>
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]307
308 <b>Unsupported:</b> <tt>aligned</tt>, <tt>packed</tt>,
309 all target specific attributes.</li>
310
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]311 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Other-Builtins.html#Other%20Builtins">Other Builtins</a>:
312 Other built-in functions.<br>
313 We support all builtins which have a C language equivalent (e.g.,
314 <tt>__builtin_cos</tt>), <tt>__builtin_alloca</tt>,
315 <tt>__builtin_types_compatible_p</tt>, <tt>__builtin_choose_expr</tt>,
Chris Lattnerb7c4bac2004-06-18 06:26:29 +0000[diff] [blame]316 <tt>__builtin_constant_p</tt>, and <tt>__builtin_expect</tt>
317 (currently ignored). We also support builtins for ISO C99 floating
Chris Lattnerb34b2732005-05-07 02:21:21 +0000[diff] [blame]318 point comparison macros (e.g., <tt>__builtin_islessequal</tt>),
319 <tt>__builtin_prefetch</tt>, <tt>__builtin_popcount[ll]</tt>,
320 <tt>__builtin_clz[ll]</tt>, and <tt>__builtin_ctz[ll]</tt>.</li>
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]321 </ol>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]322
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]323 <p>The following extensions <b>are</b> known to be supported:</p>
324
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]325 <ol>
Chris Lattnerd3dc8502004-03-16 08:54:07 +0000[diff] [blame]326 <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]327 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Statement-Exprs.html#Statement%20Exprs">Statement Exprs</a>: Putting statements and declarations inside expressions.</li>
328 <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]329 <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]330 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Conditionals.html#Conditionals">Conditionals</a>: Omitting the middle operand of a <code>?:</code> expression.</li>
331 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Long-Long.html#Long%20Long">Long Long</a>: Double-word integers.</li>
332 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Complex.html#Complex">Complex</a>: Data types for complex numbers.</li>
333 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Hex-Floats.html#Hex%20Floats">Hex Floats</a>:Hexadecimal floating-point constants.</li>
334 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html#Zero%20Length">Zero Length</a>: Zero-length arrays.</li>
335 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Empty-Structures.html#Empty%20Structures">Empty Structures</a>: Structures with no members.</li>
336 <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>
337 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Escaped-Newlines.html#Escaped%20Newlines">Escaped Newlines</a>: Slightly looser rules for escaped newlines.</li>
338 <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]339 <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]340 <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]341 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Compound-Literals.html#Compound%20Literals">Compound Literals</a>: Compound literals give structures, unions,
342or arrays as values.</li>
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]343 <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]344 <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]345 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Case-Ranges.html#Case%20Ranges">Case Ranges</a>: `case 1 ... 9' and such.</li>
346 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Mixed-Declarations.html#Mixed%20Declarations">Mixed Declarations</a>: Mixing declarations and code.</li>
347 <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]348 <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]349 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Dollar-Signs.html#Dollar%20Signs">Dollar Signs</a>: Dollar sign is allowed in identifiers.</li>
350 <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>
351 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Alignment.html#Alignment">Alignment</a>: Inquiring about the alignment of a type or variable.</li>
352 <li><a href="http://gcc.gnu.org/onlinedocs/gcc/Inline.html#Inline">Inline</a>: Defining inline functions (as fast as macros).</li>
353 <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>
354 <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>
355 <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]356 <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]357 <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>
358 <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]359 </ol></li>
360
361</ul>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]362
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]363<p>If you run into GCC extensions which have not been included in any of these
364lists, please let us know (also including whether or not they work).</p>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]365
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]366</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]367
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]368<!-- ======================================================================= -->
369<div class="doc_subsection">
370 <a name="c++-fe">Known problems with the C++ front-end</a>
371</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]372
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]373<div class="doc_text">
374
Reid Spencer55684c32004-12-07 08:39:08 +0000[diff] [blame]375<p>For this release, the C++ front-end is considered to be fully
Chris Lattnerb5bb5972004-12-07 08:04:13 +0000[diff] [blame]376tested and works for a number of non-trivial programs, including LLVM
377itself.</p>
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]378
379</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]380
381<!-- _______________________________________________________________________ -->
Chris Lattner141ebb62004-02-14 04:12:41 +0000[diff] [blame]382<div class="doc_subsubsection">Bugs</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]383
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]384<div class="doc_text">
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]385
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]386<ul>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]387<li>The C++ front-end inherits all problems afflicting the <a href="#c-fe">C
John Criswell86a3a482003-12-18 16:43:17 +0000[diff] [blame]388 front-end</a>.</li>
Chris Lattner041e6c92004-07-17 02:04:41 +0000[diff] [blame]389
Chris Lattner5cd40922004-08-02 20:28:44 +0000[diff] [blame]390</ul>
391
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]392</div>
393
394<!-- _______________________________________________________________________ -->
395<div class="doc_subsubsection">
396 Notes
397</div>
398
399<div class="doc_text">
400
401<ul>
Chris Lattnerd2a74272003-10-27 18:30:37 +0000[diff] [blame]402
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]403<li>The C++ front-end is based on a pre-release of the GCC 3.4 C++ parser. This
404parser is significantly more standards compliant (and picky) than prior GCC
405versions. For more information, see the C++ section of the <a
Chris Lattnere76e9ab2003-12-12 04:25:33 +0000[diff] [blame]406href="http://gcc.gnu.org/gcc-3.4/changes.html">GCC 3.4 release notes</a>.</li>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]407
408<li>Destructors for local objects are not always run when a <tt>longjmp</tt> is
Chris Lattner62495762003-10-02 16:38:05 +0000[diff] [blame]409 performed. In particular, destructors for objects in the <tt>longjmp</tt>ing
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]410 function and in the <tt>setjmp</tt> receiver function may not be run.
John Criswell86a3a482003-12-18 16:43:17 +0000[diff] [blame]411 Objects in intervening stack frames will be destroyed, however (which is
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]412 better than most compilers).</li>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]413
Chris Lattner62495762003-10-02 16:38:05 +0000[diff] [blame]414<li>The LLVM C++ front-end follows the <a
415 href="http://www.codesourcery.com/cxx-abi">Itanium C++ ABI</a>.
416 This document, which is not Itanium specific, specifies a standard for name
417 mangling, class layout, v-table layout, RTTI formats, and other C++
418 representation issues. Because we use this API, code generated by the LLVM
419 compilers should be binary compatible with machine code generated by other
420 Itanium ABI C++ compilers (such as G++, the Intel and HP compilers, etc).
421 <i>However</i>, the exception handling mechanism used by LLVM is very
422 different from the model used in the Itanium ABI, so <b>exceptions will not
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]423 interact correctly</b>. </li>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]424
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]425</ul>
Chris Lattner46ecf612003-10-07 22:14:37 +0000[diff] [blame]426
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]427</div>
428
429<!-- ======================================================================= -->
430<div class="doc_subsection">
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]431 <a name="c-be">Known problems with the C back-end</a>
432</div>
433
434<div class="doc_text">
435
436<ul>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]437
438<li>The C back-end produces code that violates the ANSI C Type-Based Alias
439Analysis rules. As such, special options may be necessary to compile the code
440(for example, GCC requires the <tt>-fno-strict-aliasing</tt> option). This
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]441problem probably cannot be fixed.</li>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]442
Chris Lattnerc679fbb2003-11-04 20:06:53 +0000[diff] [blame]443<li><a href="http://llvm.cs.uiuc.edu/PR56">Zero arg vararg functions are not
Chris Lattnerb28c3282003-10-24 04:03:19 +0000[diff] [blame]444supported</a>. This should not affect LLVM produced by the C or C++
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]445frontends.</li>
Chris Lattnerb28c3282003-10-24 04:03:19 +0000[diff] [blame]446
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]447</ul>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]448
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]449</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]450
Andrew Lenharth2e18c622005-05-03 16:59:09 +0000[diff] [blame]451<!-- ======================================================================= -->
452<div class="doc_subsection">
Chris Lattner683a8472005-05-16 17:06:29 +0000[diff] [blame]453 <a name="x86-be">Known problems with the X86 back-end</a>
454</div>
455
456<div class="doc_text">
457
458<ul>
John Criswelle1a81202005-05-18 19:43:33 +0000[diff] [blame]459<li><a href="http://llvm.cs.uiuc.edu/PR566">Memory Mapped I/O Intrinsics do not fence memory</a></li>
Chris Lattner683a8472005-05-16 17:06:29 +0000[diff] [blame]460</ul>
461
462</div>
463
464<!-- ======================================================================= -->
465<div class="doc_subsection">
466 <a name="ppc-be">Known problems with the PowerPC back-end</a>
467</div>
468
469<div class="doc_text">
470
471<ul>
472<li>None yet</li>
473</ul>
474
475</div>
476
477<!-- ======================================================================= -->
478<div class="doc_subsection">
479 <a name="sparcv9-be">Known problems with the SparcV9 back-end</a>
480</div>
481
482<div class="doc_text">
483
484<ul>
485<li><a href="http://llvm.cs.uiuc.edu/PR60">[sparcv9] SparcV9 backend miscompiles
486several programs in the LLVM test suite</a></li>
487</ul>
488
489</div>
490
491<!-- ======================================================================= -->
492<div class="doc_subsection">
Andrew Lenharth2e18c622005-05-03 16:59:09 +0000[diff] [blame]493 <a name="alpha-be">Known problems with the Alpha back-end</a>
494</div>
495
496<div class="doc_text">
497
498<ul>
499
Chris Lattner683a8472005-05-16 17:06:29 +0000[diff] [blame]500<li>On 21164s, some rare FP arithmetic sequences which may trap do not have the
501appropriate nops inserted to ensure restartability.</li>
Andrew Lenharth2e18c622005-05-03 16:59:09 +0000[diff] [blame]502
Chris Lattner683a8472005-05-16 17:06:29 +0000[diff] [blame]503<li>Defining vararg functions is not supported (but calling them is ok).</li>
Andrew Lenharth2e18c622005-05-03 16:59:09 +0000[diff] [blame]504
Andrew Lenharth8ecaa452005-05-14 17:43:00 +0000[diff] [blame]505<li>Due to the vararg problems, C++ exceptions do not work. Small changes are required to the CFE (which break correctness in the exception handler) to compile the exception handling library (and thus the C++ standard library).</li>
506
Andrew Lenharth2e18c622005-05-03 16:59:09 +0000[diff] [blame]507</ul>
508
509</div>
510
Duraid Madina9a449002005-05-14 05:48:13 +0000[diff] [blame]511<!-- ======================================================================= -->
512<div class="doc_subsection">
513 <a name="ia64-be">Known problems with the IA64 back-end</a>
514</div>
515
516<div class="doc_text">
517
518<ul>
519
520<li>C++ programs are likely to fail on IA64, as calls to <tt>setjmp</tt> are
521made where the argument is not 16-byte aligned, as required on IA64. (Strictly
522speaking this is not a bug in the IA64 back-end; it will also be encountered
523when building C++ programs using the C back-end.)</li>
524
Chris Lattner683a8472005-05-16 17:06:29 +0000[diff] [blame]525<li>The C++ front-end does not use <a href="http://llvm.cs.uiuc.edu/PR406">IA64
526ABI compliant layout of v-tables</a>. In particular, it just stores function
527pointers instead of function descriptors in the vtable. This bug prevents
528mixing C++ code compiled with LLVM with C++ objects compiled by other C++
529compilers.</li>
Duraid Madina9a449002005-05-14 05:48:13 +0000[diff] [blame]530
Chris Lattner683a8472005-05-16 17:06:29 +0000[diff] [blame]531<li>There are a few ABI violations which will lead to problems when mixing LLVM
532output with code built with other compilers, particularly for floating-point
533programs.</li>
534
535<li>Defining vararg functions is not supported (but calling them is ok).</li>
Duraid Madina9a449002005-05-14 05:48:13 +0000[diff] [blame]536
537</ul>
538
539</div>
540
Chris Lattnerb62a5f02005-05-15 16:01:20 +0000[diff] [blame]541<!-- ======================================================================= -->
542<div class="doc_subsection">
543 <a name="sparcv8">Known problems with the SPARC-V8 back-end</a>
544</div>
545
546<div class="doc_text">
547
548<ul>
549<li>Many features are still missing (e.g. support for 64-bit integer
550arithmetic).</li>
551
552<li>This backend needs to be updated to use the SelectionDAG instruction
553selection framework.</li>
554</ul>
555
556</div>
557
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]558<!-- *********************************************************************** -->
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]559<div class="doc_section">
560 <a name="additionalinfo">Additional Information</a>
561</div>
Chris Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]562<!-- *********************************************************************** -->
563
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]564<div class="doc_text">
565
Chris Lattnercb5596d2005-05-16 17:13:10 +0000[diff] [blame]566<p>A wide variety of additional information is available on the <a
567href="http://llvm.cs.uiuc.edu">LLVM web page</a>, including <a
568href="http://llvm.cs.uiuc.edu/docs/">documentation</a> and <a
569href="http://llvm.cs.uiuc.edu/pubs/">publications describing algorithms and
Misha Brukman96158092005-03-30 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 Lattner3d482502003-10-02 04:57:28 +0000[diff] [blame]574
Misha Brukman80731b92003-11-22 00:38:41 +0000[diff] [blame]575<p>If you have any questions or comments about LLVM, please feel free to contact
Chris Lattnercb5596d2005-05-16 17:13:10 +0000[diff] [blame]576us via the <a href="http://llvm.cs.uiuc.edu/docs/#maillist"> mailing
Chris Lattnerb84f3322003-12-12 21:22:16 +0000[diff] [blame]577lists</a>.</p>
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