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* ELF supports `nodeduplicate`. * ELF calls the concept "section group". `GRP_COMDAT` emulates the PE COMDAT deduplication feature. * "COMDAT group" is an ELF term. Avoid it for PE/COFF. * WebAssembly supports comdat but only supports the `any` selection kind. https://bugs.llvm.org/show_bug.cgi?id=50531 * A comdat must be included or omitted as a unit. Both the compiler and the linker must obey this rule. * A global object can be a member of at most one comdat. * COFF requires a non-local linkage for non-`nodeduplicate` selection kinds. * llvm.global_ctors/.llvm.global_dtors: if the third field is used on ELF, it must reference a global variable or function in a comdat Reviewed By: rnk Differential Revision: https://reviews.llvm.org/D106300 |
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_ocamldoc | ||
_static | ||
_templates | ||
_themes/llvm-theme | ||
AMDGPU | ||
CommandGuide | ||
DependenceGraphs | ||
Frontend | ||
GlobalISel | ||
HistoricalNotes | ||
PDB | ||
Proposals | ||
TableGen | ||
tutorial | ||
AddingConstrainedIntrinsics.rst | ||
AdvancedBuilds.rst | ||
AliasAnalysis.rst | ||
AMDGPUDwarfExtensionsForHeterogeneousDebugging.rst | ||
AMDGPUInstructionNotation.rst | ||
AMDGPUInstructionSyntax.rst | ||
AMDGPUModifierSyntax.rst | ||
AMDGPUOperandSyntax.rst | ||
AMDGPUUsage.rst | ||
ARM-BE-bitcastfail.png | ||
ARM-BE-bitcastsuccess.png | ||
ARM-BE-ld1.png | ||
ARM-BE-ldr.png | ||
Atomics.rst | ||
Benchmarking.rst | ||
BigEndianNEON.rst | ||
BitCodeFormat.rst | ||
BlockFrequencyTerminology.rst | ||
BranchWeightMetadata.rst | ||
BugLifeCycle.rst | ||
Bugpoint.rst | ||
BugpointRedesign.md | ||
buildbot_worker_contact.png | ||
BuildingADistribution.rst | ||
CFIVerify.rst | ||
CMake.rst | ||
CMakeLists.txt | ||
CMakePrimer.rst | ||
CodeGenerator.rst | ||
CodeOfConduct.rst | ||
CodeReview.rst | ||
CodingStandards.rst | ||
CommandLine.rst | ||
CompileCudaWithLLVM.rst | ||
CompilerWriterInfo.rst | ||
conf.py | ||
Contributing.rst | ||
Coroutines.rst | ||
CoverageMappingFormat.rst | ||
DebuggingJITedCode.rst | ||
DeveloperPolicy.rst | ||
Docker.rst | ||
doxygen-mainpage.dox | ||
doxygen.cfg.in | ||
epilogue-vectorization-cfg.png | ||
ExceptionHandling.rst | ||
ExtendedIntegerResults.txt | ||
ExtendingLLVM.rst | ||
Extensions.rst | ||
FAQ.rst | ||
FaultMaps.rst | ||
FuzzingLLVM.rst | ||
GarbageCollection.rst | ||
gcc-loops.png | ||
GetElementPtr.rst | ||
GettingInvolved.rst | ||
GettingStarted.rst | ||
GettingStartedTutorials.rst | ||
GettingStartedVS.rst | ||
GitBisecting.rst | ||
GoldPlugin.rst | ||
GwpAsan.rst | ||
HowToAddABuilder.rst | ||
HowToBuildOnARM.rst | ||
HowToBuildWindowsItaniumPrograms.rst | ||
HowToBuildWithPGO.rst | ||
HowToCrossCompileBuiltinsOnArm.rst | ||
HowToCrossCompileLLVM.rst | ||
HowToReleaseLLVM.rst | ||
HowToSetUpLLVMStyleRTTI.rst | ||
HowToSubmitABug.rst | ||
HowToUpdateDebugInfo.rst | ||
HowToUseAttributes.rst | ||
HowToUseInstrMappings.rst | ||
InAlloca.rst | ||
index.rst | ||
JITLink.rst | ||
LangRef.rst | ||
Lexicon.rst | ||
LibFuzzer.rst | ||
LinkTimeOptimization.rst | ||
linpack-pc.png | ||
llvm-objdump.1 | ||
loop-guard.svg | ||
loop-irreducible.svg | ||
loop-merge.svg | ||
loop-nested.svg | ||
loop-nonmaximal.svg | ||
loop-separate.svg | ||
loop-single.svg | ||
loop-terminology-guarded-loop.png | ||
loop-terminology-initial-loop.png | ||
loop-terminology-rotated-loop.png | ||
loop-terminology.svg | ||
LoopTerminology.rst | ||
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 | ||
MemTagSanitizer.rst | ||
MergeFunctions.rst | ||
MIRLangRef.rst | ||
NewPassManager.rst | ||
NVPTXUsage.rst | ||
OpaquePointers.rst | ||
OptBisect.rst | ||
ORCv2.rst | ||
Packaging.rst | ||
Passes.rst | ||
Phabricator_premerge_results.png | ||
Phabricator_premerge_unit_tests.png | ||
Phabricator.rst | ||
ProgrammersManual.rst | ||
Projects.rst | ||
re_format.7 | ||
README.txt | ||
Reference.rst | ||
ReleaseNotes.rst | ||
ReleaseProcess.rst | ||
Remarks.rst | ||
ReportingGuide.rst | ||
ScudoHardenedAllocator.rst | ||
Security.rst | ||
SegmentedStacks.rst | ||
SourceLevelDebugging.rst | ||
speculative_load_hardening_microbenchmarks.png | ||
SpeculativeLoadHardening.md | ||
SphinxQuickstartTemplate.rst | ||
StackMaps.rst | ||
StackSafetyAnalysis.rst | ||
Statepoints.rst | ||
SupportLibrary.rst | ||
SupportPolicy.rst | ||
SystemLibrary.rst | ||
TableGenFundamentals.rst | ||
TestingGuide.rst | ||
TestSuiteGuide.md | ||
TestSuiteMakefileGuide.rst | ||
TransformMetadata.rst | ||
TypeMetadata.rst | ||
UserGuides.rst | ||
Vectorizers.rst | ||
WritingAnLLVMBackend.rst | ||
WritingAnLLVMNewPMPass.rst | ||
WritingAnLLVMPass.rst | ||
XRay.rst | ||
XRayExample.rst | ||
XRayFDRFormat.rst | ||
yaml2obj.rst | ||
YamlIO.rst |
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