Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 1 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" |
| 2 | "http://www.w3.org/TR/html4/strict.dtd"> |
| 3 | <html> |
| 4 | <head> |
Reid Spencer | 6454ed3 | 2004-11-18 18:38:58 +0000 | [diff] [blame] | 5 | <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 6 | <link rel="stylesheet" href="llvm.css" type="text/css"> |
Dan Gohman | b44f6c6 | 2010-05-03 23:51:05 +0000 | [diff] [blame] | 7 | <title>LLVM 2.8 Release Notes</title> |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 8 | </head> |
| 9 | <body> |
Chris Lattner | 79c3fe1 | 2003-10-02 04:57:28 +0000 | [diff] [blame] | 10 | |
Dan Gohman | b44f6c6 | 2010-05-03 23:51:05 +0000 | [diff] [blame] | 11 | <div class="doc_title">LLVM 2.8 Release Notes</div> |
Mikhail Glushenkov | ea65d7d | 2008-10-13 02:08:34 +0000 | [diff] [blame] | 12 | |
Chris Lattner | 0e464a9 | 2010-03-17 04:02:39 +0000 | [diff] [blame] | 13 | <img align=right src="http://llvm.org/img/DragonSmall.png" |
Gabor Greif | ee2187a | 2010-04-22 10:21:43 +0000 | [diff] [blame] | 14 | width="136" height="136" alt="LLVM Dragon Logo"> |
Chris Lattner | 0e464a9 | 2010-03-17 04:02:39 +0000 | [diff] [blame] | 15 | |
Chris Lattner | 79c3fe1 | 2003-10-02 04:57:28 +0000 | [diff] [blame] | 16 | <ol> |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 17 | <li><a href="#intro">Introduction</a></li> |
Chris Lattner | 96a445e | 2008-10-13 18:01:01 +0000 | [diff] [blame] | 18 | <li><a href="#subproj">Sub-project Status Update</a></li> |
Dan Gohman | b44f6c6 | 2010-05-03 23:51:05 +0000 | [diff] [blame] | 19 | <li><a href="#externalproj">External Projects Using LLVM 2.8</a></li> |
| 20 | <li><a href="#whatsnew">What's New in LLVM 2.8?</a></li> |
Chris Lattner | 4b538b9 | 2004-04-30 22:17:12 +0000 | [diff] [blame] | 21 | <li><a href="GettingStarted.html">Installation Instructions</a></li> |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 22 | <li><a href="#portability">Portability and Supported Platforms</a></li> |
Dan Gohman | 44aa921 | 2008-10-14 16:23:02 +0000 | [diff] [blame] | 23 | <li><a href="#knownproblems">Known Problems</a></li> |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 24 | <li><a href="#additionalinfo">Additional Information</a></li> |
Chris Lattner | 79c3fe1 | 2003-10-02 04:57:28 +0000 | [diff] [blame] | 25 | </ol> |
| 26 | |
Chris Lattner | 7911ce2 | 2004-05-23 21:07:27 +0000 | [diff] [blame] | 27 | <div class="doc_author"> |
Dan Gohman | 44aa921 | 2008-10-14 16:23:02 +0000 | [diff] [blame] | 28 | <p>Written by the <a href="http://llvm.org">LLVM Team</a></p> |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 29 | </div> |
Chris Lattner | 79c3fe1 | 2003-10-02 04:57:28 +0000 | [diff] [blame] | 30 | |
Chris Lattner | 7b91eda | 2010-04-22 05:41:35 +0000 | [diff] [blame] | 31 | <h1 style="color:red">These are in-progress notes for the upcoming LLVM 2.8 |
Jeffrey Yasskin | bec4877 | 2010-01-28 01:14:43 +0000 | [diff] [blame] | 32 | release.<br> |
| 33 | You may prefer the |
Dan Gohman | b44f6c6 | 2010-05-03 23:51:05 +0000 | [diff] [blame] | 34 | <a href="http://llvm.org/releases/2.7/docs/ReleaseNotes.html">LLVM 2.7 |
| 35 | Release Notes</a>.</h1> |
Jeffrey Yasskin | bec4877 | 2010-01-28 01:14:43 +0000 | [diff] [blame] | 36 | |
Chris Lattner | 79c3fe1 | 2003-10-02 04:57:28 +0000 | [diff] [blame] | 37 | <!-- *********************************************************************** --> |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 38 | <div class="doc_section"> |
| 39 | <a name="intro">Introduction</a> |
| 40 | </div> |
Chris Lattner | 79c3fe1 | 2003-10-02 04:57:28 +0000 | [diff] [blame] | 41 | <!-- *********************************************************************** --> |
| 42 | |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 43 | <div class="doc_text"> |
| 44 | |
Chris Lattner | f6662f9 | 2008-10-13 17:57:36 +0000 | [diff] [blame] | 45 | <p>This document contains the release notes for the LLVM Compiler |
Dan Gohman | 7ae3ac8 | 2010-05-03 23:52:21 +0000 | [diff] [blame] | 46 | Infrastructure, release 2.8. Here we describe the status of LLVM, including |
Chris Lattner | f6662f9 | 2008-10-13 17:57:36 +0000 | [diff] [blame] | 47 | major improvements from the previous release and significant known problems. |
Mikhail Glushenkov | f795ef0 | 2009-03-01 18:09:47 +0000 | [diff] [blame] | 48 | All LLVM releases may be downloaded from the <a |
Chris Lattner | f6662f9 | 2008-10-13 17:57:36 +0000 | [diff] [blame] | 49 | href="http://llvm.org/releases/">LLVM releases web site</a>.</p> |
Chris Lattner | 1909261 | 2003-10-02 16:38:05 +0000 | [diff] [blame] | 50 | |
Chris Lattner | 7506b1d | 2004-12-07 08:04:13 +0000 | [diff] [blame] | 51 | <p>For more information about LLVM, including information about the latest |
Chris Lattner | c463b27 | 2005-10-29 07:07:09 +0000 | [diff] [blame] | 52 | release, please check out the <a href="http://llvm.org/">main LLVM |
Chris Lattner | 47ad72c | 2003-10-07 21:38:31 +0000 | [diff] [blame] | 53 | web site</a>. If you have questions or comments, the <a |
Chris Lattner | c66bfef | 2010-03-17 04:41:49 +0000 | [diff] [blame] | 54 | href="http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev">LLVM Developer's |
| 55 | Mailing List</a> is a good place to send them.</p> |
Chris Lattner | 79c3fe1 | 2003-10-02 04:57:28 +0000 | [diff] [blame] | 56 | |
Mikhail Glushenkov | ea65d7d | 2008-10-13 02:08:34 +0000 | [diff] [blame] | 57 | <p>Note that if you are reading this file from a Subversion checkout or the |
Chris Lattner | 8497764 | 2007-09-21 03:54:09 +0000 | [diff] [blame] | 58 | main LLVM web page, this document applies to the <i>next</i> release, not the |
Gabor Greif | fa933f8 | 2008-10-14 11:00:32 +0000 | [diff] [blame] | 59 | current one. To see the release notes for a specific release, please see the |
Chris Lattner | 8497764 | 2007-09-21 03:54:09 +0000 | [diff] [blame] | 60 | <a href="http://llvm.org/releases/">releases page</a>.</p> |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 61 | |
| 62 | </div> |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 63 | |
Chris Lattner | 79c3fe1 | 2003-10-02 04:57:28 +0000 | [diff] [blame] | 64 | |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 65 | <!-- |
| 66 | Almost dead code. |
| 67 | include/llvm/Analysis/LiveValues.h => Dan |
| 68 | lib/Transforms/IPO/MergeFunctions.cpp => consider for 2.8. |
| 69 | llvm/Analysis/PointerTracking.h => Edwin wants this, consider for 2.8. |
Chris Lattner | 00736fc | 2010-04-13 06:37:00 +0000 | [diff] [blame] | 70 | ABCD, GEPSplitterPass |
Chris Lattner | 048fe3c | 2010-01-16 21:25:13 +0000 | [diff] [blame] | 71 | MSIL backend? |
Chris Lattner | dc91008 | 2010-03-17 06:41:58 +0000 | [diff] [blame] | 72 | lib/Transforms/Utils/SSI.cpp -> ABCD depends on it. |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 73 | --> |
| 74 | |
| 75 | |
Dan Gohman | b44f6c6 | 2010-05-03 23:51:05 +0000 | [diff] [blame] | 76 | <!-- Features that need text if they're finished for 2.8: |
Chris Lattner | 914ce46 | 2010-04-22 06:28:20 +0000 | [diff] [blame] | 77 | combiner-aa? |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 78 | strong phi elim |
Chris Lattner | b7c85b4 | 2010-04-21 05:17:40 +0000 | [diff] [blame] | 79 | llvm.dbg.value: variable debug info for optimized code |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 80 | loop dependence analysis |
Chris Lattner | acce85d | 2008-02-10 07:46:44 +0000 | [diff] [blame] | 81 | --> |
Mikhail Glushenkov | ea65d7d | 2008-10-13 02:08:34 +0000 | [diff] [blame] | 82 | |
Chris Lattner | 547a391 | 2008-10-12 19:47:48 +0000 | [diff] [blame] | 83 | <!-- for announcement email: |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 84 | Logo web page. |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 85 | Many new papers added to /pubs/ |
Chris Lattner | 74c80df | 2009-02-25 06:34:50 +0000 | [diff] [blame] | 86 | --> |
Chris Lattner | acce85d | 2008-02-10 07:46:44 +0000 | [diff] [blame] | 87 | |
Chris Lattner | 96a445e | 2008-10-13 18:01:01 +0000 | [diff] [blame] | 88 | <!-- *********************************************************************** --> |
| 89 | <div class="doc_section"> |
| 90 | <a name="subproj">Sub-project Status Update</a> |
Chris Lattner | ea34f64 | 2008-06-08 21:34:41 +0000 | [diff] [blame] | 91 | </div> |
Chris Lattner | 96a445e | 2008-10-13 18:01:01 +0000 | [diff] [blame] | 92 | <!-- *********************************************************************** --> |
Chris Lattner | ea34f64 | 2008-06-08 21:34:41 +0000 | [diff] [blame] | 93 | |
| 94 | <div class="doc_text"> |
Chris Lattner | 8348b47 | 2008-06-08 21:58:17 +0000 | [diff] [blame] | 95 | <p> |
Dan Gohman | b44f6c6 | 2010-05-03 23:51:05 +0000 | [diff] [blame] | 96 | The LLVM 2.8 distribution currently consists of code from the core LLVM |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 97 | repository (which roughly includes the LLVM optimizers, code generators |
| 98 | and supporting tools), the Clang repository and the llvm-gcc repository. In |
| 99 | addition to this code, the LLVM Project includes other sub-projects that are in |
| 100 | development. Here we include updates on these subprojects. |
Bill Wendling | 63d8c55 | 2009-03-02 04:28:57 +0000 | [diff] [blame] | 101 | </p> |
Chris Lattner | 96a445e | 2008-10-13 18:01:01 +0000 | [diff] [blame] | 102 | |
Chris Lattner | 8348b47 | 2008-06-08 21:58:17 +0000 | [diff] [blame] | 103 | </div> |
| 104 | |
Chris Lattner | 96a445e | 2008-10-13 18:01:01 +0000 | [diff] [blame] | 105 | |
Chris Lattner | 8348b47 | 2008-06-08 21:58:17 +0000 | [diff] [blame] | 106 | <!--=========================================================================--> |
Chris Lattner | 96a445e | 2008-10-13 18:01:01 +0000 | [diff] [blame] | 107 | <div class="doc_subsection"> |
Chris Lattner | fb97b2d | 2008-10-13 18:11:54 +0000 | [diff] [blame] | 108 | <a name="clang">Clang: C/C++/Objective-C Frontend Toolkit</a> |
Chris Lattner | 8348b47 | 2008-06-08 21:58:17 +0000 | [diff] [blame] | 109 | </div> |
| 110 | |
| 111 | <div class="doc_text"> |
| 112 | |
Chris Lattner | 095539f | 2010-04-26 17:42:18 +0000 | [diff] [blame] | 113 | <p><a href="http://clang.llvm.org/">Clang</a> is an LLVM front end for the C, |
| 114 | C++, and Objective-C languages. Clang aims to provide a better user experience |
| 115 | through expressive diagnostics, a high level of conformance to language |
| 116 | standards, fast compilation, and low memory use. Like LLVM, Clang provides a |
| 117 | modular, library-based architecture that makes it suitable for creating or |
| 118 | integrating with other development tools. Clang is considered a |
| 119 | production-quality compiler for C and Objective-C on x86 (32- and 64-bit).</p> |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 120 | |
Chris Lattner | 922d00f | 2010-07-21 15:57:40 +0000 | [diff] [blame] | 121 | <p>In the LLVM 2.8 time-frame, the Clang team has made many improvements:</p> |
Bill Wendling | 741748a | 2008-10-27 09:27:33 +0000 | [diff] [blame] | 122 | |
Daniel Dunbar | 1373943 | 2008-10-14 23:25:09 +0000 | [diff] [blame] | 123 | <ul> |
David Chisnall | 8e0bd80 | 2010-04-25 19:13:33 +0000 | [diff] [blame] | 124 | |
Bill Wendling | 6bc1528 | 2009-03-02 04:28:18 +0000 | [diff] [blame] | 125 | </ul> |
Chris Lattner | fb97b2d | 2008-10-13 18:11:54 +0000 | [diff] [blame] | 126 | </div> |
| 127 | |
| 128 | <!--=========================================================================--> |
| 129 | <div class="doc_subsection"> |
| 130 | <a name="clangsa">Clang Static Analyzer</a> |
| 131 | </div> |
| 132 | |
| 133 | <div class="doc_text"> |
| 134 | |
Chris Lattner | 8cdd793 | 2010-04-22 06:38:11 +0000 | [diff] [blame] | 135 | <p>The <a href="http://clang-analyzer.llvm.org/">Clang Static Analyzer</a> |
| 136 | project is an effort to use static source code analysis techniques to |
| 137 | automatically find bugs in C and Objective-C programs (and hopefully <a |
| 138 | href="http://clang-analyzer.llvm.org/dev_cxx.html">C++ in the |
| 139 | future</a>!). The tool is very good at finding bugs that occur on specific |
| 140 | paths through code, such as on error conditions.</p> |
Chris Lattner | cc04261 | 2008-10-14 00:52:49 +0000 | [diff] [blame] | 141 | |
Chris Lattner | 922d00f | 2010-07-21 15:57:40 +0000 | [diff] [blame] | 142 | <p>In the LLVM 2.8 time-frame, |
Chris Lattner | 8cdd793 | 2010-04-22 06:38:11 +0000 | [diff] [blame] | 143 | </p> |
Chris Lattner | 8348b47 | 2008-06-08 21:58:17 +0000 | [diff] [blame] | 144 | |
| 145 | </div> |
| 146 | |
Chris Lattner | 96a445e | 2008-10-13 18:01:01 +0000 | [diff] [blame] | 147 | <!--=========================================================================--> |
| 148 | <div class="doc_subsection"> |
Nicolas Geoffray | 99a4d30 | 2008-10-14 19:23:04 +0000 | [diff] [blame] | 149 | <a name="vmkit">VMKit: JVM/CLI Virtual Machine Implementation</a> |
Chris Lattner | 96a445e | 2008-10-13 18:01:01 +0000 | [diff] [blame] | 150 | </div> |
| 151 | |
| 152 | <div class="doc_text"> |
| 153 | <p> |
Nicolas Geoffray | 99a4d30 | 2008-10-14 19:23:04 +0000 | [diff] [blame] | 154 | The <a href="http://vmkit.llvm.org/">VMKit project</a> is an implementation of |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 155 | a JVM and a CLI Virtual Machine (Microsoft .NET is an |
| 156 | implementation of the CLI) using LLVM for static and just-in-time |
| 157 | compilation.</p> |
Chris Lattner | 96a445e | 2008-10-13 18:01:01 +0000 | [diff] [blame] | 158 | |
Chris Lattner | 922d00f | 2010-07-21 15:57:40 +0000 | [diff] [blame] | 159 | <p>With the release of LLVM 2.8, ...</p> |
Chris Lattner | 96a445e | 2008-10-13 18:01:01 +0000 | [diff] [blame] | 160 | |
| 161 | </div> |
| 162 | |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 163 | |
| 164 | <!--=========================================================================--> |
| 165 | <div class="doc_subsection"> |
| 166 | <a name="compiler-rt">compiler-rt: Compiler Runtime Library</a> |
| 167 | </div> |
| 168 | |
| 169 | <div class="doc_text"> |
| 170 | <p> |
| 171 | The new LLVM <a href="http://compiler-rt.llvm.org/">compiler-rt project</a> |
| 172 | is a simple library that provides an implementation of the low-level |
| 173 | target-specific hooks required by code generation and other runtime components. |
| 174 | For example, when compiling for a 32-bit target, converting a double to a 64-bit |
| 175 | unsigned integer is compiled into a runtime call to the "__fixunsdfdi" |
| 176 | function. The compiler-rt library provides highly optimized implementations of |
| 177 | this and other low-level routines (some are 3x faster than the equivalent |
| 178 | libgcc routines).</p> |
| 179 | |
| 180 | <p> |
| 181 | All of the code in the compiler-rt project is available under the standard LLVM |
Chris Lattner | 922d00f | 2010-07-21 15:57:40 +0000 | [diff] [blame] | 182 | License, a "BSD-style" license. New in LLVM 2.8: |
| 183 | |
| 184 | Soft float support |
| 185 | </p> |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 186 | |
| 187 | </div> |
| 188 | |
| 189 | <!--=========================================================================--> |
| 190 | <div class="doc_subsection"> |
Duncan Sands | 749fd83 | 2010-04-02 09:23:15 +0000 | [diff] [blame] | 191 | <a name="dragonegg">DragonEgg: llvm-gcc ported to gcc-4.5</a> |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 192 | </div> |
| 193 | |
| 194 | <div class="doc_text"> |
| 195 | <p> |
Duncan Sands | 749fd83 | 2010-04-02 09:23:15 +0000 | [diff] [blame] | 196 | <a href="http://dragonegg.llvm.org/">DragonEgg</a> is a port of llvm-gcc to |
| 197 | gcc-4.5. Unlike llvm-gcc, which makes many intrusive changes to the underlying |
| 198 | gcc-4.2 code, dragonegg in theory does not require any gcc-4.5 modifications |
| 199 | whatsoever (currently one small patch is needed). This is thanks to the new |
| 200 | <a href="http://gcc.gnu.org/wiki/plugins">gcc plugin architecture</a>, which |
| 201 | makes it possible to modify the behaviour of gcc at runtime by loading a plugin, |
| 202 | which is nothing more than a dynamic library which conforms to the gcc plugin |
| 203 | interface. DragonEgg is a gcc plugin that causes the LLVM optimizers to be run |
| 204 | instead of the gcc optimizers, and the LLVM code generators instead of the gcc |
| 205 | code generators, just like llvm-gcc. To use it, you add |
| 206 | "-fplugin=path/dragonegg.so" to the gcc-4.5 command line, and gcc-4.5 magically |
| 207 | becomes llvm-gcc-4.5! |
| 208 | </p> |
| 209 | |
| 210 | <p> |
| 211 | DragonEgg is still a work in progress. Currently C works very well, while C++, |
| 212 | Ada and Fortran work fairly well. All other languages either don't work at all, |
| 213 | or only work poorly. For the moment only the x86-32 and x86-64 targets are |
Duncan Sands | 51a5174 | 2010-04-20 19:40:58 +0000 | [diff] [blame] | 214 | supported, and only on linux and darwin (darwin needs an additional gcc patch). |
Duncan Sands | 749fd83 | 2010-04-02 09:23:15 +0000 | [diff] [blame] | 215 | </p> |
| 216 | |
| 217 | <p> |
Chris Lattner | 922d00f | 2010-07-21 15:57:40 +0000 | [diff] [blame] | 218 | 2.8 status here. |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 219 | </p> |
| 220 | |
| 221 | </div> |
| 222 | |
| 223 | |
| 224 | <!--=========================================================================--> |
| 225 | <div class="doc_subsection"> |
| 226 | <a name="mc">llvm-mc: Machine Code Toolkit</a> |
| 227 | </div> |
| 228 | |
| 229 | <div class="doc_text"> |
| 230 | <p> |
Chris Lattner | 8cdd793 | 2010-04-22 06:38:11 +0000 | [diff] [blame] | 231 | The LLVM Machine Code (aka MC) sub-project of LLVM was created to solve a number |
| 232 | of problems in the realm of assembly, disassembly, object file format handling, |
| 233 | and a number of other related areas that CPU instruction-set level tools work |
| 234 | in. It is a sub-project of LLVM which provides it with a number of advantages |
| 235 | over other compilers that do not have tightly integrated assembly-level tools. |
| 236 | For a gentle introduction, please see the <a |
| 237 | href="http://blog.llvm.org/2010/04/intro-to-llvm-mc-project.html">Intro to the |
| 238 | LLVM MC Project Blog Post</a>. |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 239 | </p> |
| 240 | |
Chris Lattner | 922d00f | 2010-07-21 15:57:40 +0000 | [diff] [blame] | 241 | <p>2.8 status here</p> |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 242 | </div> |
| 243 | |
| 244 | |
Chris Lattner | ab68e9e | 2009-02-26 22:33:38 +0000 | [diff] [blame] | 245 | <!-- *********************************************************************** --> |
| 246 | <div class="doc_section"> |
Chris Lattner | 922d00f | 2010-07-21 15:57:40 +0000 | [diff] [blame] | 247 | <a name="externalproj">External Open Source Projects Using LLVM 2.8</a> |
Chris Lattner | ab68e9e | 2009-02-26 22:33:38 +0000 | [diff] [blame] | 248 | </div> |
| 249 | <!-- *********************************************************************** --> |
| 250 | |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 251 | <div class="doc_text"> |
| 252 | |
| 253 | <p>An exciting aspect of LLVM is that it is used as an enabling technology for |
| 254 | a lot of other language and tools projects. This section lists some of the |
Chris Lattner | 922d00f | 2010-07-21 15:57:40 +0000 | [diff] [blame] | 255 | projects that have already been updated to work with LLVM 2.8.</p> |
Chris Lattner | 7c8e796 | 2010-04-26 17:38:10 +0000 | [diff] [blame] | 256 | </div> |
| 257 | |
Chris Lattner | 3a1d4cf | 2010-04-22 21:34:16 +0000 | [diff] [blame] | 258 | |
Chris Lattner | 8348b47 | 2008-06-08 21:58:17 +0000 | [diff] [blame] | 259 | <!-- *********************************************************************** --> |
| 260 | <div class="doc_section"> |
Chris Lattner | 922d00f | 2010-07-21 15:57:40 +0000 | [diff] [blame] | 261 | <a name="whatsnew">What's New in LLVM 2.8?</a> |
Chris Lattner | 8348b47 | 2008-06-08 21:58:17 +0000 | [diff] [blame] | 262 | </div> |
| 263 | <!-- *********************************************************************** --> |
| 264 | |
Chris Lattner | f8e0b4e | 2008-06-08 22:59:35 +0000 | [diff] [blame] | 265 | <div class="doc_text"> |
| 266 | |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 267 | <p>This release includes a huge number of bug fixes, performance tweaks and |
Chris Lattner | f6662f9 | 2008-10-13 17:57:36 +0000 | [diff] [blame] | 268 | minor improvements. Some of the major improvements and new features are listed |
| 269 | in this section. |
Chris Lattner | f8e0b4e | 2008-06-08 22:59:35 +0000 | [diff] [blame] | 270 | </p> |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 271 | |
Chris Lattner | 914ce46 | 2010-04-22 06:28:20 +0000 | [diff] [blame] | 272 | </div> |
| 273 | |
| 274 | <!--=========================================================================--> |
| 275 | <div class="doc_subsection"> |
| 276 | <a name="orgchanges">LLVM Community Changes</a> |
| 277 | </div> |
| 278 | |
| 279 | <div class="doc_text"> |
| 280 | |
Chris Lattner | 922d00f | 2010-07-21 15:57:40 +0000 | [diff] [blame] | 281 | <p>In addition to changes to the code, between LLVM 2.7 and 2.8, a number of |
Chris Lattner | b7c85b4 | 2010-04-21 05:17:40 +0000 | [diff] [blame] | 282 | organization changes have happened: |
| 283 | </p> |
| 284 | |
| 285 | <ul> |
Chris Lattner | b7c85b4 | 2010-04-21 05:17:40 +0000 | [diff] [blame] | 286 | </ul> |
Chris Lattner | f8e0b4e | 2008-06-08 22:59:35 +0000 | [diff] [blame] | 287 | </div> |
| 288 | |
Chris Lattner | 8348b47 | 2008-06-08 21:58:17 +0000 | [diff] [blame] | 289 | <!--=========================================================================--> |
Chris Lattner | ea34f64 | 2008-06-08 21:34:41 +0000 | [diff] [blame] | 290 | <div class="doc_subsection"> |
Chris Lattner | 252b83d | 2008-02-06 18:00:06 +0000 | [diff] [blame] | 291 | <a name="majorfeatures">Major New Features</a> |
| 292 | </div> |
| 293 | |
| 294 | <div class="doc_text"> |
| 295 | |
Chris Lattner | 922d00f | 2010-07-21 15:57:40 +0000 | [diff] [blame] | 296 | <p>LLVM 2.8 includes several major new capabilities:</p> |
Chris Lattner | f3e5bc6 | 2007-05-14 06:56:09 +0000 | [diff] [blame] | 297 | |
| 298 | <ul> |
Chris Lattner | 922d00f | 2010-07-21 15:57:40 +0000 | [diff] [blame] | 299 | <li>.</li> |
Chris Lattner | 8170c10 | 2008-02-10 08:18:42 +0000 | [diff] [blame] | 300 | </ul> |
Chris Lattner | dc91008 | 2010-03-17 06:41:58 +0000 | [diff] [blame] | 301 | |
Chris Lattner | f3e5bc6 | 2007-05-14 06:56:09 +0000 | [diff] [blame] | 302 | </div> |
| 303 | |
Chris Lattner | 8497764 | 2007-09-21 03:54:09 +0000 | [diff] [blame] | 304 | <!--=========================================================================--> |
| 305 | <div class="doc_subsection"> |
Chris Lattner | 917cc71 | 2009-03-02 02:37:32 +0000 | [diff] [blame] | 306 | <a name="coreimprovements">LLVM IR and Core Improvements</a> |
Chris Lattner | f304ffc | 2008-02-10 08:17:19 +0000 | [diff] [blame] | 307 | </div> |
| 308 | |
| 309 | <div class="doc_text"> |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 310 | <p>LLVM IR has several new features for better support of new targets and that |
| 311 | expose new optimization opportunities:</p> |
Chris Lattner | f304ffc | 2008-02-10 08:17:19 +0000 | [diff] [blame] | 312 | |
Chris Lattner | 791f77b | 2008-06-05 06:25:56 +0000 | [diff] [blame] | 313 | <ul> |
Gabor Greif | 17b59fe | 2010-07-21 10:20:08 +0000 | [diff] [blame] | 314 | |
| 315 | <li>LLVM 2.8 changes the internal order of operands in <a |
| 316 | href="http://llvm.org/doxygen/classllvm_1_1InvokeInst.html"><tt>InvokeInst</tt></a> |
| 317 | and <a href="http://llvm.org/doxygen/classllvm_1_1CallInst.html"><tt>CallInst</tt></a>. |
| 318 | To be portable across releases, resort to <tt>CallSite</tt> and the |
Gabor Greif | 50fb330 | 2010-07-21 10:22:41 +0000 | [diff] [blame] | 319 | high-level accessors, such as <tt>getCalledValue</tt> and <tt>setUnwindDest</tt>. |
Gabor Greif | 17b59fe | 2010-07-21 10:20:08 +0000 | [diff] [blame] | 320 | </li> |
Gabor Greif | 05006e2 | 2010-07-26 18:48:07 +0000 | [diff] [blame] | 321 | <li> |
| 322 | You can no longer pass use_iterators directly to cast<> (and similar), because |
| 323 | these routines tend to perform costly dereference operations more than once. You |
| 324 | have to dereference the iterators yourself and pass them in. |
| 325 | </li> |
Torok Edwin | 7c46cf0 | 2010-08-04 12:43:22 +0000 | [diff] [blame] | 326 | <li> |
| 327 | llvm.memcpy.*, llvm.memset.*, llvm.memmove.* (and possibly other?) intrinsics |
| 328 | take an extra parameter now (i1 isVolatile), totaling 5 parameters. |
| 329 | If you were creating these intrinsic calls and prototypes yourself (as opposed |
| 330 | to using Intrinsic::getDeclaration), you can use UpgradeIntrinsicFunction/UpgradeIntrinsicCall |
| 331 | to be portable accross releases. |
| 332 | Note that you cannot use Intrinsic::getDeclaration() in a backwards compatible |
| 333 | way (needs 2/3 types now, in 2.7 it needed just 1). |
| 334 | </li> |
| 335 | <li> |
| 336 | SetCurrentDebugLocation takes a DebugLoc now instead of a MDNode. |
| 337 | Change your code to use |
| 338 | SetCurrentDebugLocation(DebugLoc::getFromDILocation(...)). |
| 339 | </li> |
| 340 | <li> |
| 341 | VISIBILITY_HIDDEN is gone. |
| 342 | </li> |
| 343 | <li> |
Owen Anderson | 87ebbc0 | 2010-08-04 18:27:08 +0000 | [diff] [blame] | 344 | The <tt>RegisterPass</tt> and <tt>RegisterAnalysisGroup</tt> templates are |
| 345 | considered deprecated, but continue to function in LLVM 2.8. Clients are |
| 346 | strongly advised to use the upcoming <tt>INITIALIZE_PASS()</tt> and |
| 347 | <tt>INITIALIZE_AG_PASS()</tt> macros instead. |
| 348 | <li> |
Torok Edwin | 7c46cf0 | 2010-08-04 12:43:22 +0000 | [diff] [blame] | 349 | SMDiagnostic takes different parameters now. //FIXME: how to upgrade? |
| 350 | </li> |
| 351 | <li> |
| 352 | Some APIs got renamed: |
| 353 | <ul> |
| 354 | <li>llvm_report_error -> report_fatal_error</li> |
| 355 | <li>llvm_install_error_handler -> install_fatal_error_handler</li> |
| 356 | <li>llvm::DwarfExceptionHandling -> llvm::JITExceptionHandling</li> |
| 357 | </ul> |
| 358 | </li> |
Chris Lattner | f304ffc | 2008-02-10 08:17:19 +0000 | [diff] [blame] | 359 | </ul> |
Mikhail Glushenkov | ea65d7d | 2008-10-13 02:08:34 +0000 | [diff] [blame] | 360 | |
Chris Lattner | f304ffc | 2008-02-10 08:17:19 +0000 | [diff] [blame] | 361 | </div> |
| 362 | |
| 363 | <!--=========================================================================--> |
| 364 | <div class="doc_subsection"> |
Chris Lattner | acce85d | 2008-02-10 07:46:44 +0000 | [diff] [blame] | 365 | <a name="optimizer">Optimizer Improvements</a> |
| 366 | </div> |
| 367 | |
| 368 | <div class="doc_text"> |
| 369 | |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 370 | <p>In addition to a large array of minor performance tweaks and bug fixes, this |
Chris Lattner | f301387 | 2008-10-13 21:50:36 +0000 | [diff] [blame] | 371 | release includes a few major enhancements and additions to the optimizers:</p> |
Chris Lattner | acce85d | 2008-02-10 07:46:44 +0000 | [diff] [blame] | 372 | |
| 373 | <ul> |
| 374 | |
Chris Lattner | 922d00f | 2010-07-21 15:57:40 +0000 | [diff] [blame] | 375 | <li></li> |
Chris Lattner | a54c1f7 | 2010-04-21 06:42:24 +0000 | [diff] [blame] | 376 | |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 377 | </ul> |
Chris Lattner | 917cc71 | 2009-03-02 02:37:32 +0000 | [diff] [blame] | 378 | |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 379 | </div> |
Chris Lattner | 917cc71 | 2009-03-02 02:37:32 +0000 | [diff] [blame] | 380 | |
Chris Lattner | 917cc71 | 2009-03-02 02:37:32 +0000 | [diff] [blame] | 381 | |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 382 | <!--=========================================================================--> |
| 383 | <div class="doc_subsection"> |
| 384 | <a name="executionengine">Interpreter and JIT Improvements</a> |
| 385 | </div> |
Chris Lattner | f301387 | 2008-10-13 21:50:36 +0000 | [diff] [blame] | 386 | |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 387 | <div class="doc_text"> |
| 388 | |
| 389 | <ul> |
Chris Lattner | 922d00f | 2010-07-21 15:57:40 +0000 | [diff] [blame] | 390 | <li></li> |
Chris Lattner | b7c85b4 | 2010-04-21 05:17:40 +0000 | [diff] [blame] | 391 | |
Chris Lattner | 0b83220 | 2008-06-08 02:45:07 +0000 | [diff] [blame] | 392 | </ul> |
| 393 | |
| 394 | </div> |
| 395 | |
| 396 | <!--=========================================================================--> |
| 397 | <div class="doc_subsection"> |
Chris Lattner | 511433e | 2009-03-02 03:24:11 +0000 | [diff] [blame] | 398 | <a name="codegen">Target Independent Code Generator Improvements</a> |
Chris Lattner | 0b83220 | 2008-06-08 02:45:07 +0000 | [diff] [blame] | 399 | </div> |
| 400 | |
| 401 | <div class="doc_text"> |
| 402 | |
Mikhail Glushenkov | f795ef0 | 2009-03-01 18:09:47 +0000 | [diff] [blame] | 403 | <p>We have put a significant amount of work into the code generator |
| 404 | infrastructure, which allows us to implement more aggressive algorithms and make |
| 405 | it run faster:</p> |
Chris Lattner | 0b83220 | 2008-06-08 02:45:07 +0000 | [diff] [blame] | 406 | |
| 407 | <ul> |
Chris Lattner | 922d00f | 2010-07-21 15:57:40 +0000 | [diff] [blame] | 408 | <li>MachO writer works.</li> |
Chris Lattner | 8497764 | 2007-09-21 03:54:09 +0000 | [diff] [blame] | 409 | </ul> |
Chris Lattner | 8497764 | 2007-09-21 03:54:09 +0000 | [diff] [blame] | 410 | </div> |
| 411 | |
Chris Lattner | 917cc71 | 2009-03-02 02:37:32 +0000 | [diff] [blame] | 412 | <!--=========================================================================--> |
| 413 | <div class="doc_subsection"> |
| 414 | <a name="x86">X86-32 and X86-64 Target Improvements</a> |
| 415 | </div> |
| 416 | |
| 417 | <div class="doc_text"> |
| 418 | <p>New features of the X86 target include: |
| 419 | </p> |
| 420 | |
| 421 | <ul> |
Chris Lattner | 922d00f | 2010-07-21 15:57:40 +0000 | [diff] [blame] | 422 | <li>The X86 backend now supports holding X87 floating point stack values |
| 423 | in registers across basic blocks, dramatically improving performance of code |
| 424 | that uses long double, and when targetting CPUs that don't support SSE.</li> |
Chris Lattner | 511433e | 2009-03-02 03:24:11 +0000 | [diff] [blame] | 425 | |
Chris Lattner | 917cc71 | 2009-03-02 02:37:32 +0000 | [diff] [blame] | 426 | </ul> |
| 427 | |
Chris Lattner | 917cc71 | 2009-03-02 02:37:32 +0000 | [diff] [blame] | 428 | </div> |
Chris Lattner | 8497764 | 2007-09-21 03:54:09 +0000 | [diff] [blame] | 429 | |
| 430 | <!--=========================================================================--> |
| 431 | <div class="doc_subsection"> |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 432 | <a name="ARM">ARM Target Improvements</a> |
Chris Lattner | c441fb8 | 2009-03-01 02:30:21 +0000 | [diff] [blame] | 433 | </div> |
| 434 | |
| 435 | <div class="doc_text"> |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 436 | <p>New features of the ARM target include: |
| 437 | </p> |
Chris Lattner | c441fb8 | 2009-03-01 02:30:21 +0000 | [diff] [blame] | 438 | |
| 439 | <ul> |
Chris Lattner | c441fb8 | 2009-03-01 02:30:21 +0000 | [diff] [blame] | 440 | |
Chris Lattner | 922d00f | 2010-07-21 15:57:40 +0000 | [diff] [blame] | 441 | <li></li> |
Jim Grosbach | 41a7766 | 2010-04-22 18:33:31 +0000 | [diff] [blame] | 442 | |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 443 | </ul> |
Chris Lattner | c441fb8 | 2009-03-01 02:30:21 +0000 | [diff] [blame] | 444 | |
Chris Lattner | c441fb8 | 2009-03-01 02:30:21 +0000 | [diff] [blame] | 445 | |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 446 | </div> |
Chris Lattner | c441fb8 | 2009-03-01 02:30:21 +0000 | [diff] [blame] | 447 | |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 448 | <!--=========================================================================--> |
| 449 | <div class="doc_subsection"> |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 450 | <a name="newapis">New Useful APIs</a> |
| 451 | </div> |
| 452 | |
| 453 | <div class="doc_text"> |
| 454 | |
| 455 | <p>This release includes a number of new APIs that are used internally, which |
| 456 | may also be useful for external clients. |
| 457 | </p> |
| 458 | |
| 459 | <ul> |
Chris Lattner | 922d00f | 2010-07-21 15:57:40 +0000 | [diff] [blame] | 460 | <li></li> |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 461 | </ul> |
| 462 | |
| 463 | |
| 464 | </div> |
| 465 | |
| 466 | <!--=========================================================================--> |
| 467 | <div class="doc_subsection"> |
| 468 | <a name="otherimprovements">Other Improvements and New Features</a> |
| 469 | </div> |
| 470 | |
| 471 | <div class="doc_text"> |
| 472 | <p>Other miscellaneous features include:</p> |
| 473 | |
| 474 | <ul> |
Chris Lattner | 922d00f | 2010-07-21 15:57:40 +0000 | [diff] [blame] | 475 | <li></li> |
Chris Lattner | c441fb8 | 2009-03-01 02:30:21 +0000 | [diff] [blame] | 476 | </ul> |
| 477 | |
| 478 | </div> |
| 479 | |
Chris Lattner | 77d29b1 | 2008-06-05 08:02:49 +0000 | [diff] [blame] | 480 | |
| 481 | <!--=========================================================================--> |
| 482 | <div class="doc_subsection"> |
Chris Lattner | f6662f9 | 2008-10-13 17:57:36 +0000 | [diff] [blame] | 483 | <a name="changes">Major Changes and Removed Features</a> |
| 484 | </div> |
| 485 | |
| 486 | <div class="doc_text"> |
| 487 | |
Chris Lattner | eeb4da0 | 2008-10-13 22:06:31 +0000 | [diff] [blame] | 488 | <p>If you're already an LLVM user or developer with out-of-tree changes based |
Chris Lattner | 922d00f | 2010-07-21 15:57:40 +0000 | [diff] [blame] | 489 | on LLVM 2.7, this section lists some "gotchas" that you may run into upgrading |
Chris Lattner | eeb4da0 | 2008-10-13 22:06:31 +0000 | [diff] [blame] | 490 | from the previous release.</p> |
Chris Lattner | f6662f9 | 2008-10-13 17:57:36 +0000 | [diff] [blame] | 491 | |
| 492 | <ul> |
Chris Lattner | b7c85b4 | 2010-04-21 05:17:40 +0000 | [diff] [blame] | 493 | |
Chris Lattner | 922d00f | 2010-07-21 15:57:40 +0000 | [diff] [blame] | 494 | <li>.</li> |
Chris Lattner | b7c85b4 | 2010-04-21 05:17:40 +0000 | [diff] [blame] | 495 | </ul> |
Chris Lattner | eeb4da0 | 2008-10-13 22:06:31 +0000 | [diff] [blame] | 496 | |
| 497 | <p>In addition, many APIs have changed in this release. Some of the major LLVM |
| 498 | API changes are:</p> |
| 499 | |
| 500 | <ul> |
Devang Patel | b34dd13 | 2008-10-14 20:03:43 +0000 | [diff] [blame] | 501 | </ul> |
Chris Lattner | f6662f9 | 2008-10-13 17:57:36 +0000 | [diff] [blame] | 502 | |
Chris Lattner | f6662f9 | 2008-10-13 17:57:36 +0000 | [diff] [blame] | 503 | </div> |
| 504 | |
| 505 | |
| 506 | |
Chris Lattner | 1909261 | 2003-10-02 16:38:05 +0000 | [diff] [blame] | 507 | <!-- *********************************************************************** --> |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 508 | <div class="doc_section"> |
| 509 | <a name="portability">Portability and Supported Platforms</a> |
| 510 | </div> |
Chris Lattner | 1909261 | 2003-10-02 16:38:05 +0000 | [diff] [blame] | 511 | <!-- *********************************************************************** --> |
| 512 | |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 513 | <div class="doc_text"> |
| 514 | |
John Criswell | 0b5b5e9 | 2004-12-08 20:35:47 +0000 | [diff] [blame] | 515 | <p>LLVM is known to work on the following platforms:</p> |
Chris Lattner | 4654bdb | 2004-06-01 18:22:41 +0000 | [diff] [blame] | 516 | |
| 517 | <ul> |
Mikhail Glushenkov | f795ef0 | 2009-03-01 18:09:47 +0000 | [diff] [blame] | 518 | <li>Intel and AMD machines (IA32, X86-64, AMD64, EMT-64) running Red Hat |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 519 | Linux, Fedora Core, FreeBSD and AuroraUX (and probably other unix-like |
| 520 | systems).</li> |
Chris Lattner | 914ce46 | 2010-04-22 06:28:20 +0000 | [diff] [blame] | 521 | <li>PowerPC and X86-based Mac OS X systems, running 10.4 and above in 32-bit |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 522 | and 64-bit modes.</li> |
Chris Lattner | 252b83d | 2008-02-06 18:00:06 +0000 | [diff] [blame] | 523 | <li>Intel and AMD machines running on Win32 using MinGW libraries (native).</li> |
Chris Lattner | 57a460e | 2007-05-23 04:39:32 +0000 | [diff] [blame] | 524 | <li>Intel and AMD machines running on Win32 with the Cygwin libraries (limited |
| 525 | support is available for native builds with Visual C++).</li> |
Chris Lattner | 7e23d6e | 2009-10-16 16:30:58 +0000 | [diff] [blame] | 526 | <li>Sun x86 and AMD64 machines running Solaris 10, OpenSolaris 0906.</li> |
John Criswell | 9321fa8 | 2005-05-13 20:28:15 +0000 | [diff] [blame] | 527 | <li>Alpha-based machines running Debian GNU/Linux.</li> |
Chris Lattner | 4654bdb | 2004-06-01 18:22:41 +0000 | [diff] [blame] | 528 | </ul> |
| 529 | |
Chris Lattner | bc5786b | 2008-06-05 06:57:39 +0000 | [diff] [blame] | 530 | <p>The core LLVM infrastructure uses GNU autoconf to adapt itself |
Brian Gaeke | b0fd761 | 2004-05-09 05:28:35 +0000 | [diff] [blame] | 531 | to the machine and operating system on which it is built. However, minor |
| 532 | porting may be required to get LLVM to work on new platforms. We welcome your |
| 533 | portability patches and reports of successful builds or error messages.</p> |
Chris Lattner | 79c3fe1 | 2003-10-02 04:57:28 +0000 | [diff] [blame] | 534 | |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 535 | </div> |
Chris Lattner | 79c3fe1 | 2003-10-02 04:57:28 +0000 | [diff] [blame] | 536 | |
| 537 | <!-- *********************************************************************** --> |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 538 | <div class="doc_section"> |
| 539 | <a name="knownproblems">Known Problems</a> |
| 540 | </div> |
Chris Lattner | 79c3fe1 | 2003-10-02 04:57:28 +0000 | [diff] [blame] | 541 | <!-- *********************************************************************** --> |
| 542 | |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 543 | <div class="doc_text"> |
| 544 | |
Mikhail Glushenkov | f795ef0 | 2009-03-01 18:09:47 +0000 | [diff] [blame] | 545 | <p>This section contains significant known problems with the LLVM system, |
Chris Lattner | e18b32e | 2008-11-10 05:40:34 +0000 | [diff] [blame] | 546 | listed by component. If you run into a problem, please check the <a |
Chris Lattner | c463b27 | 2005-10-29 07:07:09 +0000 | [diff] [blame] | 547 | href="http://llvm.org/bugs/">LLVM bug database</a> and submit a bug if |
Chris Lattner | 5eccca4 | 2003-12-12 21:22:16 +0000 | [diff] [blame] | 548 | there isn't already one.</p> |
Chris Lattner | 79c3fe1 | 2003-10-02 04:57:28 +0000 | [diff] [blame] | 549 | |
Chris Lattner | 477a1fd | 2010-03-17 17:25:49 +0000 | [diff] [blame] | 550 | <ul> |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 551 | <li>LLVM will not correctly compile on Solaris and/or OpenSolaris |
| 552 | using the stock GCC 3.x.x series 'out the box', |
Chris Lattner | 554ee4a | 2009-11-03 21:50:09 +0000 | [diff] [blame] | 553 | See: <a href="GettingStarted.html#brokengcc">Broken versions of GCC and other tools</a>. |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 554 | However, A <a href="http://pkg.auroraux.org/GCC">Modern GCC Build</a> |
| 555 | for x86/x86-64 has been made available from the third party AuroraUX Project |
| 556 | that has been meticulously tested for bootstrapping LLVM & Clang.</li> |
Eric Christopher | 3aff669 | 2010-08-05 20:38:39 +0000 | [diff] [blame] | 557 | <li>There have been reports of Solaris and/or OpenSolaris build failures due |
| 558 | to an incompatibility in the nm program as well. The nm from binutils does seem |
| 559 | to work.</li> |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 560 | </ul> |
| 561 | |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 562 | </div> |
Chris Lattner | 79c3fe1 | 2003-10-02 04:57:28 +0000 | [diff] [blame] | 563 | |
Chris Lattner | f5ee170 | 2004-03-14 02:03:02 +0000 | [diff] [blame] | 564 | <!-- ======================================================================= --> |
| 565 | <div class="doc_subsection"> |
| 566 | <a name="experimental">Experimental features included with this release</a> |
| 567 | </div> |
Chris Lattner | 79c3fe1 | 2003-10-02 04:57:28 +0000 | [diff] [blame] | 568 | |
Chris Lattner | f5ee170 | 2004-03-14 02:03:02 +0000 | [diff] [blame] | 569 | <div class="doc_text"> |
| 570 | |
Misha Brukman | 6df9e2c | 2004-05-12 21:46:05 +0000 | [diff] [blame] | 571 | <p>The following components of this LLVM release are either untested, known to |
| 572 | be broken or unreliable, or are in early development. These components should |
| 573 | not be relied on, and bugs should not be filed against them, but they may be |
| 574 | useful to some people. In particular, if you would like to work on one of these |
Chris Lattner | 2b659ef | 2008-02-12 06:29:45 +0000 | [diff] [blame] | 575 | components, please contact us on the <a |
| 576 | href="http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev">LLVMdev list</a>.</p> |
Chris Lattner | f5ee170 | 2004-03-14 02:03:02 +0000 | [diff] [blame] | 577 | |
| 578 | <ul> |
Wesley Peck | 7c4a121 | 2010-03-18 14:31:30 +0000 | [diff] [blame] | 579 | <li>The MSIL, Alpha, SPU, MIPS, PIC16, Blackfin, MSP430, SystemZ and MicroBlaze |
| 580 | backends are experimental.</li> |
Chris Lattner | 914ce46 | 2010-04-22 06:28:20 +0000 | [diff] [blame] | 581 | <li><tt>llc</tt> "<tt>-filetype=asm</tt>" (the default) is the only |
Chris Lattner | 922d00f | 2010-07-21 15:57:40 +0000 | [diff] [blame] | 582 | supported value for this option. XXX Update me</li> |
Chris Lattner | f5ee170 | 2004-03-14 02:03:02 +0000 | [diff] [blame] | 583 | </ul> |
| 584 | |
| 585 | </div> |
Chris Lattner | 79c3fe1 | 2003-10-02 04:57:28 +0000 | [diff] [blame] | 586 | |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 587 | <!-- ======================================================================= --> |
| 588 | <div class="doc_subsection"> |
Chris Lattner | 2629922 | 2006-11-18 07:51:14 +0000 | [diff] [blame] | 589 | <a name="x86-be">Known problems with the X86 back-end</a> |
John Criswell | c0c186d | 2005-11-08 21:11:33 +0000 | [diff] [blame] | 590 | </div> |
| 591 | |
| 592 | <div class="doc_text"> |
| 593 | |
| 594 | <ul> |
Anton Korobeynikov | a6094be | 2008-06-08 10:24:13 +0000 | [diff] [blame] | 595 | <li>The X86 backend does not yet support |
| 596 | all <a href="http://llvm.org/PR879">inline assembly that uses the X86 |
| 597 | floating point stack</a>. It supports the 'f' and 't' constraints, but not |
| 598 | 'u'.</li> |
Duncan Sands | 47eff2b | 2008-06-08 19:38:43 +0000 | [diff] [blame] | 599 | <li>Win64 code generation wasn't widely tested. Everything should work, but we |
John Criswell | 524a5dd | 2009-03-02 15:28:15 +0000 | [diff] [blame] | 600 | expect small issues to happen. Also, llvm-gcc cannot build the mingw64 |
Chris Lattner | 914ce46 | 2010-04-22 06:28:20 +0000 | [diff] [blame] | 601 | runtime currently due to lack of support for the 'u' inline assembly |
| 602 | constraint and for X87 floating point inline assembly.</li> |
Dan Gohman | 8207ba9 | 2008-06-08 23:05:11 +0000 | [diff] [blame] | 603 | <li>The X86-64 backend does not yet support the LLVM IR instruction |
Chris Lattner | 914ce46 | 2010-04-22 06:28:20 +0000 | [diff] [blame] | 604 | <tt>va_arg</tt>. Currently, front-ends support variadic |
Dan Gohman | 8207ba9 | 2008-06-08 23:05:11 +0000 | [diff] [blame] | 605 | argument constructs on X86-64 by lowering them manually.</li> |
Chris Lattner | 2629922 | 2006-11-18 07:51:14 +0000 | [diff] [blame] | 606 | </ul> |
| 607 | |
| 608 | </div> |
| 609 | |
| 610 | <!-- ======================================================================= --> |
| 611 | <div class="doc_subsection"> |
| 612 | <a name="ppc-be">Known problems with the PowerPC back-end</a> |
| 613 | </div> |
| 614 | |
| 615 | <div class="doc_text"> |
| 616 | |
| 617 | <ul> |
Nicolas Geoffray | e4285dc | 2007-05-15 09:21:28 +0000 | [diff] [blame] | 618 | <li>The Linux PPC32/ABI support needs testing for the interpreter and static |
Chris Lattner | 57a460e | 2007-05-23 04:39:32 +0000 | [diff] [blame] | 619 | compilation, and lacks support for debug information.</li> |
Chris Lattner | 2629922 | 2006-11-18 07:51:14 +0000 | [diff] [blame] | 620 | </ul> |
| 621 | |
| 622 | </div> |
| 623 | |
| 624 | <!-- ======================================================================= --> |
| 625 | <div class="doc_subsection"> |
Chris Lattner | f3e5bc6 | 2007-05-14 06:56:09 +0000 | [diff] [blame] | 626 | <a name="arm-be">Known problems with the ARM back-end</a> |
| 627 | </div> |
| 628 | |
| 629 | <div class="doc_text"> |
| 630 | |
| 631 | <ul> |
Chris Lattner | 57a460e | 2007-05-23 04:39:32 +0000 | [diff] [blame] | 632 | <li>Thumb mode works only on ARMv6 or higher processors. On sub-ARMv6 |
Duncan Sands | c90d68b | 2007-09-26 15:59:54 +0000 | [diff] [blame] | 633 | processors, thumb programs can crash or produce wrong |
Chris Lattner | 57a460e | 2007-05-23 04:39:32 +0000 | [diff] [blame] | 634 | results (<a href="http://llvm.org/PR1388">PR1388</a>).</li> |
John Criswell | 524a5dd | 2009-03-02 15:28:15 +0000 | [diff] [blame] | 635 | <li>Compilation for ARM Linux OABI (old ABI) is supported but not fully tested. |
Chris Lattner | f3e5bc6 | 2007-05-14 06:56:09 +0000 | [diff] [blame] | 636 | </li> |
Chris Lattner | f3e5bc6 | 2007-05-14 06:56:09 +0000 | [diff] [blame] | 637 | </ul> |
| 638 | |
| 639 | </div> |
| 640 | |
| 641 | <!-- ======================================================================= --> |
| 642 | <div class="doc_subsection"> |
Chris Lattner | 2629922 | 2006-11-18 07:51:14 +0000 | [diff] [blame] | 643 | <a name="sparc-be">Known problems with the SPARC back-end</a> |
| 644 | </div> |
| 645 | |
| 646 | <div class="doc_text"> |
| 647 | |
| 648 | <ul> |
John Criswell | 524a5dd | 2009-03-02 15:28:15 +0000 | [diff] [blame] | 649 | <li>The SPARC backend only supports the 32-bit SPARC ABI (-m32); it does not |
Chris Lattner | 2629922 | 2006-11-18 07:51:14 +0000 | [diff] [blame] | 650 | support the 64-bit SPARC ABI (-m64).</li> |
| 651 | </ul> |
| 652 | |
| 653 | </div> |
| 654 | |
| 655 | <!-- ======================================================================= --> |
| 656 | <div class="doc_subsection"> |
Bruno Cardoso Lopes | b7e1a4f | 2008-10-25 14:56:26 +0000 | [diff] [blame] | 657 | <a name="mips-be">Known problems with the MIPS back-end</a> |
| 658 | </div> |
| 659 | |
| 660 | <div class="doc_text"> |
| 661 | |
| 662 | <ul> |
Bruno Cardoso Lopes | b7e1a4f | 2008-10-25 14:56:26 +0000 | [diff] [blame] | 663 | <li>64-bit MIPS targets are not supported yet.</li> |
| 664 | </ul> |
| 665 | |
| 666 | </div> |
| 667 | |
| 668 | <!-- ======================================================================= --> |
| 669 | <div class="doc_subsection"> |
Chris Lattner | 2629922 | 2006-11-18 07:51:14 +0000 | [diff] [blame] | 670 | <a name="alpha-be">Known problems with the Alpha back-end</a> |
| 671 | </div> |
| 672 | |
| 673 | <div class="doc_text"> |
| 674 | |
| 675 | <ul> |
| 676 | |
| 677 | <li>On 21164s, some rare FP arithmetic sequences which may trap do not have the |
| 678 | appropriate nops inserted to ensure restartability.</li> |
| 679 | |
John Criswell | c0c186d | 2005-11-08 21:11:33 +0000 | [diff] [blame] | 680 | </ul> |
| 681 | </div> |
| 682 | |
Chris Lattner | 2629922 | 2006-11-18 07:51:14 +0000 | [diff] [blame] | 683 | <!-- ======================================================================= --> |
| 684 | <div class="doc_subsection"> |
Chris Lattner | f3e5bc6 | 2007-05-14 06:56:09 +0000 | [diff] [blame] | 685 | <a name="c-be">Known problems with the C back-end</a> |
Chris Lattner | 2629922 | 2006-11-18 07:51:14 +0000 | [diff] [blame] | 686 | </div> |
| 687 | |
| 688 | <div class="doc_text"> |
| 689 | |
| 690 | <ul> |
Chris Lattner | 5733b27 | 2008-06-05 06:35:40 +0000 | [diff] [blame] | 691 | <li><a href="http://llvm.org/PR802">The C backend has only basic support for |
| 692 | inline assembly code</a>.</li> |
Chris Lattner | 725a0d8 | 2007-09-26 06:01:35 +0000 | [diff] [blame] | 693 | <li><a href="http://llvm.org/PR1658">The C backend violates the ABI of common |
| 694 | C++ programs</a>, preventing intermixing between C++ compiled by the CBE and |
Gabor Greif | 4906abe | 2009-03-02 12:02:51 +0000 | [diff] [blame] | 695 | C++ code compiled with <tt>llc</tt> or native compilers.</li> |
Duncan Sands | f74c0cc | 2008-02-10 13:40:55 +0000 | [diff] [blame] | 696 | <li>The C backend does not support all exception handling constructs.</li> |
Duncan Sands | 50723a9 | 2009-02-25 11:51:54 +0000 | [diff] [blame] | 697 | <li>The C backend does not support arbitrary precision integers.</li> |
Chris Lattner | 2629922 | 2006-11-18 07:51:14 +0000 | [diff] [blame] | 698 | </ul> |
| 699 | |
| 700 | </div> |
John Criswell | c0c186d | 2005-11-08 21:11:33 +0000 | [diff] [blame] | 701 | |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 702 | |
| 703 | <!-- ======================================================================= --> |
| 704 | <div class="doc_subsection"> |
Chris Lattner | c66bfef | 2010-03-17 04:41:49 +0000 | [diff] [blame] | 705 | <a name="c-fe">Known problems with the llvm-gcc C and C++ front-end</a> |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 706 | </div> |
Chris Lattner | 47588f9 | 2003-10-02 05:07:23 +0000 | [diff] [blame] | 707 | |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 708 | <div class="doc_text"> |
Chris Lattner | c5d658a | 2006-03-03 00:34:26 +0000 | [diff] [blame] | 709 | |
Chris Lattner | 5733b27 | 2008-06-05 06:35:40 +0000 | [diff] [blame] | 710 | <p>The only major language feature of GCC not supported by llvm-gcc is |
| 711 | the <tt>__builtin_apply</tt> family of builtins. However, some extensions |
| 712 | are only supported on some targets. For example, trampolines are only |
Duncan Sands | 27aff87 | 2008-06-08 20:18:35 +0000 | [diff] [blame] | 713 | supported on some targets (these are used when you take the address of a |
| 714 | nested function).</p> |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 715 | |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 716 | </div> |
Chris Lattner | 79c3fe1 | 2003-10-02 04:57:28 +0000 | [diff] [blame] | 717 | |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 718 | <!-- ======================================================================= --> |
| 719 | <div class="doc_subsection"> |
Chris Lattner | 1eb4df6 | 2008-10-30 03:58:13 +0000 | [diff] [blame] | 720 | <a name="fortran-fe">Known problems with the llvm-gcc Fortran front-end</a> |
| 721 | </div> |
| 722 | |
| 723 | <div class="doc_text"> |
Gabor Greif | ba10fe0 | 2008-11-04 21:50:59 +0000 | [diff] [blame] | 724 | <ul> |
Chris Lattner | 1eb4df6 | 2008-10-30 03:58:13 +0000 | [diff] [blame] | 725 | <li>Fortran support generally works, but there are still several unresolved bugs |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 726 | in <a href="http://llvm.org/bugs/">Bugzilla</a>. Please see the |
| 727 | tools/gfortran component for details.</li> |
Gabor Greif | ba10fe0 | 2008-11-04 21:50:59 +0000 | [diff] [blame] | 728 | </ul> |
Chris Lattner | 1eb4df6 | 2008-10-30 03:58:13 +0000 | [diff] [blame] | 729 | </div> |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 730 | |
Chris Lattner | 2b659ef | 2008-02-12 06:29:45 +0000 | [diff] [blame] | 731 | <!-- ======================================================================= --> |
| 732 | <div class="doc_subsection"> |
Chris Lattner | 5733b27 | 2008-06-05 06:35:40 +0000 | [diff] [blame] | 733 | <a name="ada-fe">Known problems with the llvm-gcc Ada front-end</a> |
Chris Lattner | 2b659ef | 2008-02-12 06:29:45 +0000 | [diff] [blame] | 734 | </div> |
| 735 | |
| 736 | <div class="doc_text"> |
John Criswell | 524a5dd | 2009-03-02 15:28:15 +0000 | [diff] [blame] | 737 | The llvm-gcc 4.2 Ada compiler works fairly well; however, this is not a mature |
| 738 | technology, and problems should be expected. |
Chris Lattner | 2b659ef | 2008-02-12 06:29:45 +0000 | [diff] [blame] | 739 | <ul> |
Duncan Sands | 27aff87 | 2008-06-08 20:18:35 +0000 | [diff] [blame] | 740 | <li>The Ada front-end currently only builds on X86-32. This is mainly due |
John Criswell | 524a5dd | 2009-03-02 15:28:15 +0000 | [diff] [blame] | 741 | to lack of trampoline support (pointers to nested functions) on other platforms. |
| 742 | However, it <a href="http://llvm.org/PR2006">also fails to build on X86-64</a> |
Chris Lattner | 2b659ef | 2008-02-12 06:29:45 +0000 | [diff] [blame] | 743 | which does support trampolines.</li> |
| 744 | <li>The Ada front-end <a href="http://llvm.org/PR2007">fails to bootstrap</a>. |
Duncan Sands | 326a498 | 2009-02-25 11:59:06 +0000 | [diff] [blame] | 745 | This is due to lack of LLVM support for <tt>setjmp</tt>/<tt>longjmp</tt> style |
| 746 | exception handling, which is used internally by the compiler. |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 747 | Workaround: configure with <tt>--disable-bootstrap</tt>.</li> |
Duncan Sands | 978bcee | 2008-10-13 17:27:23 +0000 | [diff] [blame] | 748 | <li>The c380004, <a href="http://llvm.org/PR2010">c393010</a> |
| 749 | and <a href="http://llvm.org/PR2421">cxg2021</a> ACATS tests fail |
Duncan Sands | 326a498 | 2009-02-25 11:59:06 +0000 | [diff] [blame] | 750 | (c380004 also fails with gcc-4.2 mainline). |
| 751 | If the compiler is built with checks disabled then <a href="http://llvm.org/PR2010">c393010</a> |
| 752 | causes the compiler to go into an infinite loop, using up all system memory.</li> |
Duncan Sands | dd3e672 | 2009-03-02 16:35:57 +0000 | [diff] [blame] | 753 | <li>Some GCC specific Ada tests continue to crash the compiler.</li> |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 754 | <li>The <tt>-E</tt> binder option (exception backtraces) |
Chris Lattner | 2b659ef | 2008-02-12 06:29:45 +0000 | [diff] [blame] | 755 | <a href="http://llvm.org/PR1982">does not work</a> and will result in programs |
Chris Lattner | 61358ab | 2009-10-13 17:48:04 +0000 | [diff] [blame] | 756 | crashing if an exception is raised. Workaround: do not use <tt>-E</tt>.</li> |
Chris Lattner | 2b659ef | 2008-02-12 06:29:45 +0000 | [diff] [blame] | 757 | <li>Only discrete types <a href="http://llvm.org/PR1981">are allowed to start |
| 758 | or finish at a non-byte offset</a> in a record. Workaround: do not pack records |
| 759 | or use representation clauses that result in a field of a non-discrete type |
| 760 | starting or finishing in the middle of a byte.</li> |
Chris Lattner | e6e1b35 | 2008-06-08 21:19:07 +0000 | [diff] [blame] | 761 | <li>The <tt>lli</tt> interpreter <a href="http://llvm.org/PR2009">considers |
| 762 | 'main' as generated by the Ada binder to be invalid</a>. |
| 763 | Workaround: hand edit the file to use pointers for <tt>argv</tt> and |
| 764 | <tt>envp</tt> rather than integers.</li> |
| 765 | <li>The <tt>-fstack-check</tt> option <a href="http://llvm.org/PR2008">is |
| 766 | ignored</a>.</li> |
Chris Lattner | 2b659ef | 2008-02-12 06:29:45 +0000 | [diff] [blame] | 767 | </ul> |
| 768 | </div> |
| 769 | |
Chris Lattner | 79c3fe1 | 2003-10-02 04:57:28 +0000 | [diff] [blame] | 770 | <!-- *********************************************************************** --> |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 771 | <div class="doc_section"> |
| 772 | <a name="additionalinfo">Additional Information</a> |
| 773 | </div> |
Chris Lattner | 79c3fe1 | 2003-10-02 04:57:28 +0000 | [diff] [blame] | 774 | <!-- *********************************************************************** --> |
| 775 | |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 776 | <div class="doc_text"> |
| 777 | |
Chris Lattner | 416db10 | 2005-05-16 17:13:10 +0000 | [diff] [blame] | 778 | <p>A wide variety of additional information is available on the <a |
Chris Lattner | b4b0ce7 | 2007-05-18 00:44:29 +0000 | [diff] [blame] | 779 | href="http://llvm.org">LLVM web page</a>, in particular in the <a |
| 780 | href="http://llvm.org/docs/">documentation</a> section. The web page also |
Reid Spencer | 669ed45 | 2007-07-09 08:04:31 +0000 | [diff] [blame] | 781 | contains versions of the API documentation which is up-to-date with the |
| 782 | Subversion version of the source code. |
Misha Brukman | 109d9e8 | 2005-03-30 19:14:24 +0000 | [diff] [blame] | 783 | You can access versions of these documents specific to this release by going |
| 784 | into the "<tt>llvm/doc/</tt>" directory in the LLVM tree.</p> |
Chris Lattner | 79c3fe1 | 2003-10-02 04:57:28 +0000 | [diff] [blame] | 785 | |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 786 | <p>If you have any questions or comments about LLVM, please feel free to contact |
Chris Lattner | c463b27 | 2005-10-29 07:07:09 +0000 | [diff] [blame] | 787 | us via the <a href="http://llvm.org/docs/#maillist"> mailing |
Chris Lattner | 5eccca4 | 2003-12-12 21:22:16 +0000 | [diff] [blame] | 788 | lists</a>.</p> |
Chris Lattner | 79c3fe1 | 2003-10-02 04:57:28 +0000 | [diff] [blame] | 789 | |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 790 | </div> |
Chris Lattner | 79c3fe1 | 2003-10-02 04:57:28 +0000 | [diff] [blame] | 791 | |
| 792 | <!-- *********************************************************************** --> |
Chris Lattner | 79c3fe1 | 2003-10-02 04:57:28 +0000 | [diff] [blame] | 793 | |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 794 | <hr> |
Misha Brukman | 2061e89 | 2003-11-22 01:23:39 +0000 | [diff] [blame] | 795 | <address> |
Misha Brukman | 38847d5 | 2003-12-21 22:53:21 +0000 | [diff] [blame] | 796 | <a href="http://jigsaw.w3.org/css-validator/check/referer"><img |
Misha Brukman | 4440870 | 2008-12-11 17:34:48 +0000 | [diff] [blame] | 797 | src="http://jigsaw.w3.org/css-validator/images/vcss-blue" alt="Valid CSS"></a> |
Misha Brukman | 2061e89 | 2003-11-22 01:23:39 +0000 | [diff] [blame] | 798 | <a href="http://validator.w3.org/check/referer"><img |
Misha Brukman | 4440870 | 2008-12-11 17:34:48 +0000 | [diff] [blame] | 799 | src="http://www.w3.org/Icons/valid-html401-blue" alt="Valid HTML 4.01"></a> |
Misha Brukman | 2061e89 | 2003-11-22 01:23:39 +0000 | [diff] [blame] | 800 | |
Chris Lattner | b4b0ce7 | 2007-05-18 00:44:29 +0000 | [diff] [blame] | 801 | <a href="http://llvm.org/">LLVM Compiler Infrastructure</a><br> |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 802 | Last modified: $Date$ |
Misha Brukman | 2061e89 | 2003-11-22 01:23:39 +0000 | [diff] [blame] | 803 | </address> |
Chris Lattner | 79c3fe1 | 2003-10-02 04:57:28 +0000 | [diff] [blame] | 804 | |
Misha Brukman | 500bc30 | 2003-11-22 00:38:41 +0000 | [diff] [blame] | 805 | </body> |
| 806 | </html> |