6 If you are using a released version of LLVM, see `the download page
7 <http://llvm.org/releases/>`_ to find your documentation.
9 The LLVM compiler infrastructure supports a wide range of projects, from
10 industrial strength compilers to specialized JIT applications to small
13 Similarly, documentation is broken down into several high-level groupings
14 targeted at different audiences:
16 LLVM Design & Overview
17 ======================
19 Several introductory papers and presentations.
27 Defines the LLVM intermediate representation.
29 `Introduction to the LLVM Compiler`__
30 Presentation providing a users introduction to LLVM.
32 .. __: http://llvm.org/pubs/2008-10-04-ACAT-LLVM-Intro.html
35 Book chapter providing a compiler hacker's introduction to LLVM.
37 .. __: http://www.aosabook.org/en/llvm.html
40 `LLVM: A Compilation Framework for Lifelong Program Analysis & Transformation`__
43 .. __: http://llvm.org/pubs/2004-01-30-CGO-LLVM.html
45 `LLVM: An Infrastructure for Multi-Stage Optimization`__
46 More details (quite old now).
48 .. __: http://llvm.org/pubs/2002-12-LattnerMSThesis.html
50 `Publications mentioning LLVM <http://llvm.org/pubs>`_
56 For those new to the LLVM system.
58 NOTE: If you are a user who is only interested in using LLVM-based
59 compilers, you should look into `Clang <http://clang.llvm.org>`_ or
60 `DragonEgg <http://dragonegg.llvm.org>`_ instead. The documentation here is
61 intended for users who have a need to work with the intermediate LLVM
77 SphinxQuickstartTemplate
87 Discusses how to get up and running quickly with the LLVM infrastructure.
88 Everything from unpacking and compilation of the distribution to execution
92 An addendum to the main Getting Started guide for those using the `CMake
93 build system <http://www.cmake.org>`_.
95 :doc:`HowToBuildOnARM`
96 Notes on building and testing LLVM/Clang on ARM.
98 :doc:`GettingStartedVS`
99 An addendum to the main Getting Started guide for those using Visual Studio
102 :doc:`tutorial/index`
103 Tutorials about using LLVM. Includes a tutorial about making a custom
106 :doc:`LLVM Command Guide <CommandGuide/index>`
107 A reference manual for the LLVM command line utilities ("man" pages for LLVM
111 A list of optimizations and analyses implemented in LLVM.
114 A list of common questions and problems and their solutions.
116 :doc:`Release notes for the current release <ReleaseNotes>`
117 This describes new features, known bugs, and other limitations.
119 :doc:`HowToSubmitABug`
120 Instructions for properly submitting information about any bugs you run into
123 :doc:`SphinxQuickstartTemplate`
124 A template + tutorial for writing new Sphinx documentation. It is meant
125 to be read in source form.
127 :doc:`LLVM Testing Infrastructure Guide <TestingGuide>`
128 A reference manual for using the LLVM testing infrastructure.
130 `How to build the C, C++, ObjC, and ObjC++ front end`__
131 Instructions for building the clang front-end from source.
133 .. __: http://clang.llvm.org/get_started.html
136 Definition of acronyms, terms and concepts used in LLVM.
138 :doc:`HowToAddABuilder`
139 Instructions for adding new builder to LLVM buildbot master.
142 A reference guide for using LLVM's YAML I/O library.
145 Answers to some very frequent questions about LLVM's most frequently
146 misunderstood instruction.
148 Programming Documentation
149 =========================
151 For developers of applications which use LLVM as a library.
161 HowToSetUpLLVMStyleRTTI
165 :doc:`LLVM Language Reference Manual <LangRef>`
166 Defines the LLVM intermediate representation and the assembly form of the
170 Information about LLVM's concurrency model.
172 :doc:`ProgrammersManual`
173 Introduction to the general layout of the LLVM sourcebase, important classes
174 and APIs, and some tips & tricks.
177 LLVM-specific extensions to tools and formats LLVM seeks compatibility with.
180 Provides information on using the command line parsing library.
182 :doc:`CodingStandards`
183 Details the LLVM coding standards and provides useful information on writing
186 :doc:`HowToSetUpLLVMStyleRTTI`
187 How to make ``isa<>``, ``dyn_cast<>``, etc. available for clients of your
191 Look here to see how to add instructions and intrinsics to LLVM.
193 `Doxygen generated documentation <http://llvm.org/doxygen/>`_
194 (`classes <http://llvm.org/doxygen/inherits.html>`_)
195 (`tarball <http://llvm.org/doxygen/doxygen.tar.gz>`_)
197 `ViewVC Repository Browser <http://llvm.org/viewvc/>`_
200 :doc:`CompilerWriterInfo`
201 A list of helpful links for compiler writers.
203 Subsystem Documentation
204 =======================
206 For API clients and LLVM developers.
233 :doc:`WritingAnLLVMPass`
234 Information on how to write LLVM transformations and analyses.
236 :doc:`WritingAnLLVMBackend`
237 Information on how to write LLVM backends for machine targets.
240 The design and implementation of the LLVM code generator. Useful if you are
241 working on retargetting LLVM to a new architecture, designing a new codegen
242 pass, or enhancing existing components.
244 :doc:`TableGenFundamentals`
245 Describes the TableGen tool, which is used heavily by the LLVM code
249 Information on how to write a new alias analysis implementation or how to
250 use existing analyses.
252 :doc:`GarbageCollection`
253 The interfaces source-language compilers should use for compiling GC'd
256 :doc:`Source Level Debugging with LLVM <SourceLevelDebugging>`
257 This document describes the design and philosophy behind the LLVM
258 source-level debugger.
261 This document describes the current status of vectorization in LLVM.
263 :doc:`ExceptionHandling`
264 This document describes the design and implementation of exception handling
268 Automatic bug finder and test-case reducer description and usage
272 This describes the file format and encoding used for LLVM "bc" files.
274 :doc:`System Library <SystemLibrary>`
275 This document describes the LLVM System Library (``lib/System``) and
276 how to keep LLVM source code portable
278 :doc:`LinkTimeOptimization`
279 This document describes the interface between LLVM intermodular optimizer
280 and the linker and its design
283 How to build your programs with link-time optimization on Linux.
285 :doc:`DebuggingJITedCode`
286 How to debug JITed code with GDB.
288 :doc:`BranchWeightMetadata`
289 Provides information about Branch Prediction Information.
291 :doc:`SegmentedStacks`
292 This document describes segmented stacks and how they are used in LLVM.
294 :doc:`MarkedUpDisassembly`
295 This document describes the optional rich disassembly output syntax.
297 :doc:`HowToUseAttributes`
298 Answers some questions about the new Attributes infrastructure.
301 This document describes using the NVPTX back-end to compile GPU kernels.
304 Development Process Documentation
305 =================================
307 Information about LLVM's development process.
319 :doc:`DeveloperPolicy`
320 The LLVM project's policy towards developers and their contributions.
323 How-to guide and templates for new projects that *use* the LLVM
324 infrastructure. The templates (directory organization, Makefiles, and test
325 tree) allow the project code to be located outside (or inside) the ``llvm/``
326 tree, while using LLVM header files and libraries.
329 Describes the LLVMBuild organization and files used by LLVM to specify
330 component descriptions.
333 Describes how the LLVM makefiles work and how to use them.
335 :doc:`HowToReleaseLLVM`
336 This is a guide to preparing LLVM releases. Most developers can ignore it.
338 :doc:`ReleaseProcess`
339 This is a validate a new release, during the release process. Most developers can ignore it.
342 Advice on packaging LLVM into a distribution.
347 LLVM has a thriving community of friendly and helpful developers.
348 The two primary communication mechanisms in the LLVM community are mailing
354 If you can't find what you need in these docs, try consulting the mailing
357 `Developer's List (llvmdev)`__
358 This list is for people who want to be included in technical discussions of
359 LLVM. People post to this list when they have questions about writing code
360 for or using the LLVM tools. It is relatively low volume.
362 .. __: http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
364 `Commits Archive (llvm-commits)`__
365 This list contains all commit messages that are made when LLVM developers
366 commit code changes to the repository. It also serves as a forum for
367 patch review (i.e. send patches here). It is useful for those who want to
368 stay on the bleeding edge of LLVM development. This list is very high
371 .. __: http://lists.cs.uiuc.edu/pipermail/llvm-commits/
373 `Bugs & Patches Archive (llvmbugs)`__
374 This list gets emailed every time a bug is opened and closed. It is
375 higher volume than the LLVMdev list.
377 .. __: http://lists.cs.uiuc.edu/pipermail/llvmbugs/
379 `Test Results Archive (llvm-testresults)`__
380 A message is automatically sent to this list by every active nightly tester
381 when it completes. As such, this list gets email several times each day,
382 making it a high volume list.
384 .. __: http://lists.cs.uiuc.edu/pipermail/llvm-testresults/
386 `LLVM Announcements List (llvm-announce)`__
387 This is a low volume list that provides important announcements regarding
388 LLVM. It gets email about once a month.
390 .. __: http://lists.cs.uiuc.edu/mailman/listinfo/llvm-announce
395 Users and developers of the LLVM project (including subprojects such as Clang)
396 can be found in #llvm on `irc.oftc.net <irc://irc.oftc.net/llvm>`_.
398 This channel has several bots.
402 * llvmbb - Bot for the main LLVM buildbot master.
403 http://lab.llvm.org:8011/console
404 * bb-chapuni - An individually run buildbot master. http://bb.pgr.jp/console
405 * smooshlab - Apple's internal buildbot master.
407 * robot - Bugzilla linker. %bug <number>
409 * clang-bot - A `geordi <http://www.eelis.net/geordi/>`_ instance running
410 near-trunk clang instead of gcc.