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llvm-mirror/docs
Louis Dionne 6766b6d75d [lit] Add the ability to parse regexes in Lit boolean expressions
This patch augments Lit with the ability to parse regular expressions
in boolean expressions. This includes REQUIRES:, XFAIL:, UNSUPPORTED:,
and all other special Lit markup that evaluates to a boolean expression.

Regular expressions can be specified by enclosing them in {{...}},
similarly to how FileCheck handles such regular expressions. The regular
expression can either be on its own, or it can be part of an identifier.
For example, a match expression like {{.+}}-apple-darwin{{.+}} would match
the following variables:

     x86_64-apple-darwin20.0
     arm64-apple-darwin20.0
     arm64-apple-darwin22.0
     etc...

In the long term, this could be used to remove the need to handle the
target triple specially when parsing boolean expressions.

Differential Revision: https://reviews.llvm.org/D104572
2021-06-30 10:52:16 -04:00
..
_ocamldoc
_static
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_themes/llvm-theme
AMDGPU [AMDGPU][MC][NFC][DOC] Updated AMD GPU assembler syntax description. 2021-05-14 16:13:30 +03:00
CommandGuide [llvm-readobj] Make -s and -t match llvm-readelf 2021-06-29 11:56:26 -07:00
DependenceGraphs
Frontend [llvm] Fix typos in documentation (NFC) 2021-02-27 10:09:23 -08:00
GlobalISel [GlobalISel] Describe undefined values for G_SBFX/G_UBFX operands 2021-06-24 09:31:41 -04:00
HistoricalNotes
PDB
Proposals [VPlan] Add VPDef class. 2020-11-17 16:18:11 +00:00
TableGen [TableGen] Add the !find bang operator 2021-04-28 09:51:00 -04:00
tutorial [docs] Fix load instructions in chapter 7 of the tutorial 2021-06-09 17:39:11 +08:00
AddingConstrainedIntrinsics.rst
AdvancedBuilds.rst Update documentation and implementation of stage3 build 2020-10-08 07:55:37 +02:00
AliasAnalysis.rst [Docs] Remove no-aa from the alias analysis documentation 2021-03-04 00:35:52 -06:00
AMDGPUDwarfExtensionsForHeterogeneousDebugging.rst [NFC][AMDGPU] Correct typo in DWARF Extensions For Heterogeneous Debugging 2021-03-09 00:23:23 +00:00
AMDGPUInstructionNotation.rst
AMDGPUInstructionSyntax.rst
AMDGPUModifierSyntax.rst [AMDGPU][MC][NFC][DOC] Updated AMD GPU assembler syntax description. 2021-05-14 16:13:30 +03:00
AMDGPUOperandSyntax.rst [AMDGPU][MC][NFC][DOC] Updated AMD GPU assembler syntax description. 2021-05-14 16:13:30 +03:00
AMDGPUUsage.rst [AMDGPU] Update gfx90a memory model support 2021-06-30 04:05:22 +00:00
ARM-BE-bitcastfail.png
ARM-BE-bitcastsuccess.png
ARM-BE-ld1.png
ARM-BE-ldr.png
Atomics.rst [AArch64] Out-of-line atomics (-moutline-atomics) implementation. 2020-11-20 13:30:12 +00:00
Benchmarking.rst
BigEndianNEON.rst
BitCodeFormat.rst [SanitizeCoverage] Add support for NoSanitizeCoverage function attribute 2021-05-25 12:57:14 +02:00
BlockFrequencyTerminology.rst
BranchWeightMetadata.rst
BugLifeCycle.rst
Bugpoint.rst
BugpointRedesign.md
buildbot_worker_contact.png added section on CI system 2021-04-21 09:59:41 +02:00
BuildingADistribution.rst [cmake] Add support for multiple distributions 2021-05-12 11:13:18 -07:00
CFIVerify.rst
CMake.rst [RFC][debuginfo-test] Rename debug-info lit tests for general purposes 2021-06-28 11:31:40 +01:00
CMakeLists.txt
CMakePrimer.rst
CodeGenerator.rst [docs][GISel]Added GISel documentation link 2021-06-24 00:55:00 +05:30
CodeOfConduct.rst
CodeReview.rst [docs] Set Phabricator as the tool for pre-commit reviews 2021-06-07 11:50:52 -05:00
CodingStandards.rst Update references to 'master' branch. 2020-12-21 19:10:34 +00:00
CommandLine.rst [llvm] Fix typos in documentation (NFC) 2021-02-27 10:09:23 -08:00
CompileCudaWithLLVM.rst
CompilerWriterInfo.rst [XCore][docs] Fix XCore compiler writer documentation links. 2020-12-08 12:21:09 +00:00
conf.py
Contributing.rst [docs] Fix up dead clang-format links after monorepo move. NFC 2021-03-30 14:29:35 -07:00
Coroutines.rst [LICM][Coroutine] Don't sink stores from loops with coro.suspend instructions 2021-03-03 15:21:57 -08:00
CoverageMappingFormat.rst [Coverage] Store compilation dir separately in coverage mapping 2021-02-18 14:34:39 -08:00
DebuggingJITedCode.rst [docs] Update DebuggingJITedCode page after fix in LLDB 2021-01-14 15:43:11 +01:00
DeveloperPolicy.rst [doc] typo fixes 2021-05-03 10:59:51 +02:00
Docker.rst
doxygen-mainpage.dox
doxygen.cfg.in
epilogue-vectorization-cfg.png [LV] Epilogue Vectorization with Optimal Control Flow (Recommit) 2020-12-02 10:09:56 -05:00
ExceptionHandling.rst
ExtendedIntegerResults.txt
ExtendingLLVM.rst [docs] Update ExtendingLLVM.rst 2020-09-21 16:49:48 -07:00
Extensions.rst Introduce and use a new section type for the bb_addr_map section. 2020-10-08 11:13:19 -07:00
FAQ.rst Update references to 'master' branch. 2020-12-21 19:10:34 +00:00
FaultMaps.rst
FuzzingLLVM.rst
GarbageCollection.rst [Docs] Correct Boehm collector weblink in GarbageCollection.rst 2021-04-18 17:30:17 +05:30
gcc-loops.png
GetElementPtr.rst
GettingInvolved.rst [docs] Describe reporting security issues on the chromium tracker. 2021-05-19 15:21:50 -07:00
GettingStarted.rst [RFC][debuginfo-test] Rename debug-info lit tests for general purposes 2021-06-28 11:31:40 +01:00
GettingStartedTutorials.rst
GettingStartedVS.rst propose Chocolately as package manager 2021-03-19 16:15:18 +01:00
GitBisecting.rst Update references to 'master' branch. 2020-12-21 19:10:34 +00:00
GoldPlugin.rst
GwpAsan.rst
HowToAddABuilder.rst Update filename to workers.py file in documentation 2021-01-22 00:20:26 -08:00
HowToBuildOnARM.rst Remove Python2 fallback and only advertise Python3 in the doc 2020-12-17 15:40:16 +01:00
HowToBuildWindowsItaniumPrograms.rst Reland: [Docs][Windows Itanium] Add a How-To document for Windows Itanium. 2021-03-09 01:36:34 +00:00
HowToBuildWithPGO.rst docs: Add pointer to cmake caches for PGO 2020-12-07 15:55:26 -05:00
HowToCrossCompileBuiltinsOnArm.rst [arm builtin crosscompile docs] add COMPILER_RT_BUILD_MEMPROF=OFF 2021-02-25 10:44:52 -05:00
HowToCrossCompileLLVM.rst
HowToReleaseLLVM.rst HowToReleaseLLVM: Update document to match the current release process 2020-12-21 15:16:11 -08:00
HowToSetUpLLVMStyleRTTI.rst
HowToSubmitABug.rst [Docs] Update HowToSubmitABug 2021-02-02 21:19:20 -08:00
HowToUpdateDebugInfo.rst Recommit: "[Debugify][Original DI] Test dbg var loc preservation"" 2021-05-21 02:04:29 -07:00
HowToUseAttributes.rst
HowToUseInstrMappings.rst
InAlloca.rst
index.rst
JITLink.rst [docs][JITLink] Fix a typo (NFC) 2021-03-02 15:07:36 +01:00
LangRef.rst [Inline] prevent inlining on noprofile mismatch 2021-06-29 10:32:03 -07:00
Lexicon.rst [llvm] Fix typos in documentation (NFC) 2021-02-27 10:09:23 -08:00
LibFuzzer.rst [libfuzzer] Update doc mentioning removed flags. 2021-05-18 22:40:42 -07:00
LinkTimeOptimization.rst
linpack-pc.png
llvm-objdump.1 [llvm-objdump] Implement --prefix-strip option 2021-03-24 13:22:35 +00:00
loop-guard.svg [docs] Revise loop terminology reference. 2020-10-05 10:28:04 -05:00
loop-irreducible.svg [docs] Revise loop terminology reference. 2020-10-05 10:28:04 -05:00
loop-merge.svg [docs] Revise loop terminology reference. 2020-10-05 10:28:04 -05:00
loop-nested.svg [docs] Revise loop terminology reference. 2020-10-05 10:28:04 -05:00
loop-nonmaximal.svg [docs] Revise loop terminology reference. 2020-10-05 10:28:04 -05:00
loop-separate.svg [docs] Revise loop terminology reference. 2020-10-05 10:28:04 -05:00
loop-single.svg [docs] Revise loop terminology reference. 2020-10-05 10:28:04 -05:00
loop-terminology-guarded-loop.png
loop-terminology-initial-loop.png
loop-terminology-rotated-loop.png
loop-terminology.svg [docs] Revise loop terminology reference. 2020-10-05 10:28:04 -05:00
LoopTerminology.rst [LCSSA] Doc for special treatment of PHIs 2020-10-29 22:50:07 +02:00
make.bat
Makefile.sphinx
MarkdownQuickstartTemplate.md
MarkedUpDisassembly.rst
MCJIT-creation.png
MCJIT-dyld-load.png
MCJIT-engine-builder.png
MCJIT-load-object.png
MCJIT-load.png
MCJIT-resolve-relocations.png
MCJITDesignAndImplementation.rst
MeetupGuidelines.rst
MemorySSA.rst [llvm] Fix typos in documentation (NFC) 2021-02-27 10:09:23 -08:00
MemTagSanitizer.rst
MergeFunctions.rst [llvm] Fix typos in documentation (NFC) 2021-02-27 10:09:23 -08:00
MIRLangRef.rst [llvm] Fix typos in documentation (NFC) 2021-02-27 10:09:23 -08:00
NewPassManager.rst [docs][NewPM] Add some instructions on how to invoke opt 2021-06-23 19:49:35 -07:00
NVPTXUsage.rst
OpaquePointers.rst [docs][OpaquePtr] Shuffle around the transition plan section 2021-06-14 10:59:41 -07:00
OptBisect.rst
ORCv2.rst s/setGenerator/addGenerator/ in the JIT docs. NFC 2021-04-15 15:54:28 -07:00
Packaging.rst
Passes.rst Use -cfg-func-name value as filter for -view-cfg, etc. 2021-06-16 23:54:51 +02:00
Phabricator_premerge_results.png [doc] added documentation for pre-merge testing 2021-04-27 16:53:16 +02:00
Phabricator_premerge_unit_tests.png [doc] added documentation for pre-merge testing 2021-04-27 16:53:16 +02:00
Phabricator.rst [doc] added documentation for pre-merge testing 2021-04-27 16:53:16 +02:00
ProgrammersManual.rst [llvm] Fix typos in documentation (NFC) 2021-02-27 10:09:23 -08:00
Projects.rst
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README.txt
Reference.rst [docs][JITLink] Add a JITLink design and API document. 2021-02-24 21:04:35 +11:00
ReleaseNotes.rst [llvm-readobj] Make -s and -t match llvm-readelf 2021-06-29 11:56:26 -07:00
ReleaseProcess.rst
Remarks.rst
ReportingGuide.rst
ScudoHardenedAllocator.rst [docs][scudo] Update Scudo documentation 2021-04-13 08:41:56 -07:00
Security.rst [docs] Describe reporting security issues on the chromium tracker. 2021-05-19 15:21:50 -07:00
SegmentedStacks.rst
SourceLevelDebugging.rst [DebugInfo] Enforce implicit constraints on distinct MDNodes 2021-06-28 21:20:04 +00:00
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SpeculativeLoadHardening.md
SphinxQuickstartTemplate.rst
StackMaps.rst [llvm] Fix typos in documentation (NFC) 2021-02-27 10:09:23 -08:00
StackSafetyAnalysis.rst
Statepoints.rst [RS4GC] Introduce intrinsics to get base ptr and offset 2021-05-27 09:14:14 +07:00
SupportLibrary.rst
SupportPolicy.rst [docs] Adding a Support Policy 2020-11-07 21:06:05 +00:00
SystemLibrary.rst
TableGenFundamentals.rst
TestingGuide.rst [lit] Add the ability to parse regexes in Lit boolean expressions 2021-06-30 10:52:16 -04:00
TestSuiteGuide.md [flang][docs] Initial documentation for the Fortran LLVM Test Suite. 2021-05-26 15:59:55 -05:00
TestSuiteMakefileGuide.rst
TransformMetadata.rst
TypeMetadata.rst Update references to 'master' branch. 2020-12-21 19:10:34 +00:00
UserGuides.rst [docs] Add page on opaque pointer types 2021-05-13 15:10:27 -07:00
Vectorizers.rst [Docs] Fix incorrect return type for example code 2021-06-10 14:20:11 +08:00
WritingAnLLVMBackend.rst
WritingAnLLVMNewPMPass.rst [docs] Add documentation on using the new pass manager 2021-02-26 15:28:19 -08:00
WritingAnLLVMPass.rst [docs] Add documentation on using the new pass manager 2021-02-26 15:28:19 -08:00
XRay.rst [xray] Fix xray document spelling 2021-03-10 16:03:55 +11:00
XRayExample.rst [xray] Fix xray document spelling 2021-03-10 16:03:55 +11:00
XRayFDRFormat.rst
yaml2obj.rst
YamlIO.rst [llvm] Fix typos in documentation (NFC) 2021-02-27 10:09:23 -08:00

LLVM Documentation
==================

LLVM's documentation is written in reStructuredText, a lightweight
plaintext markup language (file extension `.rst`). While the
reStructuredText documentation should be quite readable in source form, it
is mostly meant to be processed by the Sphinx documentation generation
system to create HTML pages which are hosted on <https://llvm.org/docs/> and
updated after every commit. Manpage output is also supported, see below.

If you instead would like to generate and view the HTML locally, install
Sphinx <http://sphinx-doc.org/> and then do:

    cd <build-dir>
    cmake -DLLVM_ENABLE_SPHINX=true -DSPHINX_OUTPUT_HTML=true <src-dir>
    make -j3 docs-llvm-html
    $BROWSER <build-dir>/docs//html/index.html

The mapping between reStructuredText files and generated documentation is
`docs/Foo.rst` <-> `<build-dir>/docs//html/Foo.html` <-> `https://llvm.org/docs/Foo.html`.

If you are interested in writing new documentation, you will want to read
`SphinxQuickstartTemplate.rst` which will get you writing documentation
very fast and includes examples of the most important reStructuredText
markup syntax.

Manpage Output
===============

Building the manpages is similar to building the HTML documentation. The
primary difference is to use the `man` makefile target, instead of the
default (which is `html`). Sphinx then produces the man pages in the
directory `<build-dir>/docs/man/`.

    cd <build-dir>
    cmake -DLLVM_ENABLE_SPHINX=true -DSPHINX_OUTPUT_MAN=true <src-dir>
    make -j3 docs-llvm-man
    man -l >build-dir>/docs/man/FileCheck.1

The correspondence between .rst files and man pages is
`docs/CommandGuide/Foo.rst` <-> `<build-dir>/docs//man/Foo.1`.
These .rst files are also included during HTML generation so they are also
viewable online (as noted above) at e.g.
`https://llvm.org/docs/CommandGuide/Foo.html`.

Checking links
==============

The reachability of external links in the documentation can be checked by
running:

    cd docs/
    make -f Makefile.sphinx linkcheck

Doxygen page Output
==============

Install doxygen <http://www.stack.nl/~dimitri/doxygen/download.html> and dot2tex <https://dot2tex.readthedocs.io/en/latest>.

    cd <build-dir>
    cmake -DLLVM_ENABLE_DOXYGEN=On <llvm-top-src-dir>
    make doxygen-llvm # for LLVM docs
    make doxygen-clang # for clang docs

It will generate html in

    <build-dir>/docs/doxygen/html # for LLVM docs
    <build-dir>/tools/clang/docs/doxygen/html # for clang docs