teak-llvm/llvm/docs
Thomas Preud'homme 8e96697c7d FileCheck [9/12]: Add support for matching formats
Summary:
This patch is part of a patch series to add support for FileCheck
numeric expressions. This specific patch adds support for selecting a
matching format to match a numeric value against (ie. decimal, hex lower
case letters or hex upper case letters).

This commit allows to select what format a numeric value should be
matched against. The following formats are supported: decimal value,
lower case hex value and upper case hex value. Matching formats impact
both the format of numeric value to be matched as well as the format of
accepted numbers in a definition with empty numeric expression
constraint.

Default for absence of format is decimal value unless the numeric
expression constraint is non null and use a variable in which case the
format is the one used to define that variable. Conclict of format in
case of several variable being used is diagnosed and forces the user to
select a matching format explicitely.

This commit also enables immediates in numeric expressions to be in any
radix known to StringRef's GetAsInteger method, except for legacy
numeric expressions (ie [[@LINE+<offset>]] which only support decimal
immediates.

Copyright:
    - Linaro (changes up to diff 183612 of revision D55940)
    - GraphCore (changes in later versions of revision D55940 and
                 in new revision created off D55940)

Reviewers: jhenderson, chandlerc, jdenny, probinson, grimar, arichardson

Reviewed By: jhenderson, arichardson

Subscribers: daltenty, MaskRay, hiraditya, llvm-commits, probinson, dblaikie, grimar, arichardson, kristina, hfinkel, rogfer01, JonChesterfield

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D60389
2020-01-24 14:15:28 +00:00
..
_ocamldoc
_static
_templates [www] More HTTPS and outdated link fixes. 2019-11-08 14:41:27 -08:00
_themes/llvm-theme [Docs] Updates sidebar links and sets max-width property for div.body 2019-10-15 21:27:20 +00:00
AMDGPU [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
CommandGuide FileCheck [9/12]: Add support for matching formats 2020-01-24 14:15:28 +00:00
DependenceGraphs [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
Frontend [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
GlobalISel [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
HistoricalNotes
PDB Fix a few spellos in docs. 2019-09-13 14:58:24 +00:00
Proposals [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
TableGen [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
tutorial [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
AddingConstrainedIntrinsics.rst [FEnv] Fix AddingConstrainedIntrinsics.rst after llvmorg-10-init-10282-g0c50c0b0552 2019-11-19 23:09:13 -08:00
AdvancedBuilds.rst Use backquotes to avoid a sphinx unexpected error: 2018-12-16 14:19:39 +00:00
AliasAnalysis.rst
AMDGPUInstructionNotation.rst [AMDGPU][MC][DOC] Updated AMD GPU assembler description. 2018-12-28 11:48:23 +00:00
AMDGPUInstructionSyntax.rst [AMDGPU][MC][DOC] Updated AMD GPU assembler syntax description. 2019-07-08 16:50:11 +00:00
AMDGPUModifierSyntax.rst [AMDGPU][MC][DOC] Updated AMD GPU assembler syntax description. 2019-12-25 17:51:53 +03:00
AMDGPUOperandSyntax.rst [AMDGPU][MC][DOC] Updated AMD GPU assembler syntax description. 2019-12-25 17:51:53 +03:00
AMDGPUUsage.rst [docs] NFC: Fix typos in documents 2020-01-07 16:06:14 +01:00
ARM-BE-bitcastfail.png
ARM-BE-bitcastsuccess.png
ARM-BE-ld1.png
ARM-BE-ldr.png
Atomics.rst [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
Benchmarking.rst
BigEndianNEON.rst [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
BitCodeFormat.rst [X86] Add new calling convention that guarantees tail call optimization 2019-10-07 22:28:58 +00:00
BlockFrequencyTerminology.rst [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
BranchWeightMetadata.rst [TI removal] Remove discussion of TerminatorInst from the LLVM 2018-10-18 07:40:24 +00:00
BugLifeCycle.rst Introduce bug life cycle documentation. 2018-11-07 08:49:36 +00:00
Bugpoint.rst [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
BugpointRedesign.md [Bugpoint redesign] Fix nonlocal URI link in doc 2019-08-09 21:48:47 +00:00
BuildingADistribution.rst Remove AllTargetsAsmPrinters 2020-01-17 19:04:06 -05:00
CFIVerify.rst [cfi-verify] Abort on unsupported targets 2018-07-16 15:26:44 +00:00
CMake.rst Make LLVM_APPEND_VC_REV=OFF affect clang, lld, and lldb as well. 2020-01-16 19:04:08 -05:00
CMakeLists.txt
CMakePrimer.rst [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
CodeGenerator.rst [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
CodeOfConduct.rst
CodingStandards.rst [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
CommandLine.rst [CommandLine] Add callbacks to Options 2019-12-06 15:16:45 -08:00
CompileCudaWithLLVM.rst [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
CompilerWriterInfo.rst [PowerPC][docs] Update Embedded PowerPC docs in Compiler Writers Info page 2019-12-30 20:22:37 +00:00
conf.py [Docs] Add a custom sidebar to doc pages 2019-09-20 22:16:39 +00:00
Contributing.rst Add discussion of git-format-patch to Phabricator.html 2019-12-03 18:54:46 -05:00
Coroutines.rst fix another doc typo to cycle bots 2019-12-20 21:59:51 -05:00
CoverageMappingFormat.rst [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
DebuggingJITedCode.rst [docs] Fix references to a renamed flag. 2019-11-06 14:42:57 -08:00
DeveloperPolicy.rst [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
Docker.rst [build] Rename clang-headers to clang-resource-headers 2019-03-04 21:19:53 +00:00
doxygen-mainpage.dox
doxygen.cfg.in [NFC] Remove LLVM_ALIGNAS 2019-07-31 03:22:08 +00:00
ExceptionHandling.rst Remove extra "\01" prefix in EH docs 2020-01-19 08:20:17 -08:00
ExtendedIntegerResults.txt
ExtendingLLVM.rst Note ImmArg in documentation for adding intrinsics 2019-03-14 13:46:17 +00:00
Extensions.rst [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
FAQ.rst [docs] Tiny rewording in the portability FAQ entry 2019-11-20 16:40:30 -08:00
FaultMaps.rst
FuzzingLLVM.rst [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
GarbageCollection.rst [GC docs] Update the gcroot documentation to reflect recent simplifcations to GCStrategy configurability 2018-11-12 20:30:50 +00:00
gcc-loops.png
GetElementPtr.rst [DOC] Fix load instructions' syntax, function definition. 2019-06-12 11:24:22 +00:00
GettingInvolved.rst [Docs] Moves Reference docs to new page 2019-09-25 00:49:02 +00:00
GettingStarted.rst [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
GettingStartedTutorials.rst [Docs] Adds Documentation links to sidebar 2019-10-09 20:26:13 +00:00
GettingStartedVS.rst Retire VS2015 Support 2019-07-09 10:10:48 +00:00
GoldPlugin.rst [docs][gold] Fix a typo 2018-08-21 21:00:54 +00:00
GwpAsan.rst [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
HowToAddABuilder.rst wrap an rst file to 80 cols, to cycle bots 2019-12-06 17:28:02 -05:00
HowToBuildOnARM.rst [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
HowToBuildWithPGO.rst [docs] NFC: Fix typos in documents 2020-01-07 16:06:14 +01:00
HowToCrossCompileBuiltinsOnArm.rst [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
HowToCrossCompileLLVM.rst
HowToReleaseLLVM.rst Remove some autoconf references from docs and comments 2019-07-03 09:57:59 +00:00
HowToSetUpLLVMStyleRTTI.rst
HowToSubmitABug.rst [docs] Prevent O0 optnone for opt input 2019-01-29 22:17:51 +00:00
HowToUseAttributes.rst
HowToUseInstrMappings.rst
InAlloca.rst
index.rst Make coding standards document more inclusive 2019-11-21 13:37:17 +01:00
LangRef.rst Add support for (expressing) vscale. 2020-01-22 10:09:27 +00:00
Lexicon.rst [docs] fix typo in Lexicon.rst 2019-12-24 09:47:15 +01:00
LibFuzzer.rst [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
LinkTimeOptimization.rst
linpack-pc.png
llvm-objdump.1 Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
LLVMBuild.rst
LLVMBuild.txt Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
LoopTerminology.rst [docs] Fix sphinx doc generation errors 2019-08-14 22:18:01 +00:00
make.bat
Makefile.sphinx
MarkdownQuickstartTemplate.md [docs] Reinstate r337730 - Add support for Markdown documentation in 2018-08-06 00:38:31 +00:00
MarkedUpDisassembly.rst [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
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 Add guidelines/recommendations for organizers of LLVM Socials 2019-05-14 07:20:58 +00:00
MemorySSA.rst
MemTagSanitizer.rst [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
MergeFunctions.rst Updating MergeFunctions.rst 2018-08-18 20:17:19 +00:00
MIRLangRef.rst [globalisel][docs] Rework GMIR documentation and add an early GenericOpcode reference 2019-11-05 15:16:43 -08:00
NVPTXUsage.rst
OptBisect.rst [LegacyPassManager] Delete BasicBlockPass/Manager. 2019-10-30 11:40:16 -07:00
ORCv2.rst [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
Packaging.rst
Passes.rst [docs] NFC: Fix typos in documents 2020-01-07 16:06:14 +01:00
Phabricator.rst phab doc: Replace or remove references to svn 2020-01-09 22:29:20 +01:00
ProgrammersManual.rst [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
Projects.rst
re_format.7
README.txt [NFC] Test commit, whitespace change 2019-06-06 22:07:14 +00:00
Reference.rst Add MemTagSanitizer documentation. 2019-11-01 10:46:04 -07:00
ReleaseNotes.rst Bump the trunk major version to 11 2020-01-15 13:38:01 +01:00
ReleaseProcess.rst [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
Remarks.rst [Remarks] Remove references to ELF support 2019-10-28 12:50:46 -07:00
ReportingGuide.rst [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
ScudoHardenedAllocator.rst [docs] Scudo: document error messages & their potential cause 2019-01-22 16:43:45 +00:00
SegmentedStacks.rst
SourceLevelDebugging.rst [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
speculative_load_hardening_microbenchmarks.png [x86/SLH] Add the design document for Speculative Load Hardening, 2018-07-18 14:05:14 +00:00
SpeculativeLoadHardening.md Fix a few spellos in docs. 2019-09-13 14:58:24 +00:00
SphinxQuickstartTemplate.rst Docs: Updates Sphinx Quickstart template for new contributors 2019-11-10 09:27:32 -07:00
StackMaps.rst [docs] Clarify ELF section naming for StackMaps and fix a typo 2018-11-08 17:20:35 +00:00
StackSafetyAnalysis.rst Remove trailing empty line 2018-11-26 23:17:52 +00:00
Statepoints.rst [docs][statepoints] Reformulate open issues list 2018-11-09 17:09:16 +00:00
SupportLibrary.rst [Docs] [Support] Correct a missed reference and use up to date .inc examples. 2018-09-21 01:53:51 +00:00
SystemLibrary.rst [Docs] [Support] System Library to Support Library transition along with minor corrections to reflect it. 2018-09-18 18:05:38 +00:00
TableGenFundamentals.rst
TestingGuide.rst Change the googlemock link 2020-01-22 10:14:47 +01:00
TestSuiteGuide.md [Docs] Fix a typo 2019-12-18 15:19:01 -08:00
TestSuiteMakefileGuide.rst Adjust documentation for git migration. 2019-01-29 16:37:27 +00:00
TransformMetadata.rst [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
TypeMetadata.rst Reland: Dead Virtual Function Elimination 2019-10-17 09:58:57 +00:00
UserGuides.rst [Docs] Moves Control Flow Document to User Guides 2019-10-13 20:05:22 +00:00
Vectorizers.rst [Docs] Improve SLP code snippet 2019-12-10 09:32:40 -05:00
WritingAnLLVMBackend.rst Update spelling of {analyze,insert,remove}Branch in strings and comments 2020-01-21 10:15:38 -06:00
WritingAnLLVMPass.rst Generalize the pass registration mechanism used by Polly to any third-party tool 2020-01-02 16:45:31 +01:00
XRay.rst [Docs] Update of Xray page 2018-07-26 04:44:31 +00:00
XRayExample.rst [XRay][docs] Fix option name 2019-03-12 13:44:42 +00:00
XRayFDRFormat.rst [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +08:00
yaml2obj.rst
YamlIO.rst [llvm] NFC: fix trivial typos in documents 2020-01-22 11:32:51 +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 <http://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` <-> `http://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.
`http://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