llvm-6502/docs
Tom Stellard 898b9f020d TableGen: Generate a function for getting operand indices based on their defined names
This patch modifies TableGen to generate a function in
${TARGET}GenInstrInfo.inc called getNamedOperandIdx(), which can be used
to look up indices for operands based on their names.

In order to activate this feature for an instruction, you must set the
UseNamedOperandTable bit.

For example, if you have an instruction like:

def ADD : TargetInstr <(outs GPR:$dst), (ins GPR:$src0, GPR:$src1)>;

You can look up the operand indices using the new function, like this:

Target::getNamedOperandIdx(Target::ADD, Target::OpName::dst)  => 0
Target::getNamedOperandIdx(Target::ADD, Target::OpName::src0) => 1
Target::getNamedOperandIdx(Target::ADD, Target::OpName::src1) => 2

The operand names are case sensitive, so $dst and $DST are considered
different operands.

This change is useful for R600 which has instructions with a large number
of operands, many of which model single bit instruction configuration
values.  These configuration bits are common across most instructions,
but may have a different operand index depending on the instruction type.
It is useful to have a convenient way to look up the operand indices,
so these bits can be generically set on any instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184879 91177308-0d34-0410-b5e6-96231b3b80d8
2013-06-25 21:22:09 +00:00
..
_static
_templates
_themes/llvm-theme
CommandGuide [docs] Fix formatting. 2013-06-21 00:27:54 +00:00
HistoricalNotes
TableGen Allow TableGen DAG arguments to be just a name. 2013-03-24 19:36:51 +00:00
tutorial [docs] Fix broken link. 2013-06-21 01:11:52 +00:00
AliasAnalysis.rst
Atomics.rst Small correction to unordered memory code generation of ARM LDRD 2013-06-18 23:07:16 +00:00
BitCodeFormat.rst
BranchWeightMetadata.rst
Bugpoint.rst
CMake.rst Add basic zlib support to LLVM. This would allow to use compression/uncompression in selected LLVM tools. 2013-04-23 08:28:39 +00:00
CodeGenerator.rst [SystemZ] Add disassembler support 2013-05-14 10:17:52 +00:00
CodingStandards.rst
CommandLine.rst Better output for long help strings for command-line options. 2013-05-10 17:15:51 +00:00
CompilerWriterInfo.rst [docs] Add link to Microsoft PE/COFF Spec. 2013-06-07 20:30:27 +00:00
conf.py We're in 3.4 land now. 2013-05-07 20:31:28 +00:00
DebuggingJITedCode.rst
DeveloperPolicy.rst Grammar and punctuation fixes. 2013-04-15 17:38:06 +00:00
doxygen.cfg.in
doxygen.css
doxygen.footer
doxygen.header
doxygen.intro
Dummy.html
ExceptionHandling.rst
ExtendedIntegerResults.txt
ExtendingLLVM.rst Fix documentation on the path to Bitcode reader/writer 2013-06-11 18:09:21 +00:00
Extensions.rst MC: Support COFF image-relative MCSymbolRefs 2013-04-10 23:28:17 +00:00
FAQ.rst
GarbageCollection.rst
gcc-loops.png
GetElementPtr.rst
GettingStarted.rst Fix documentation on the path to Bitcode reader/writer 2013-06-11 18:09:21 +00:00
GettingStartedVS.rst Updating the getting started guide for Visual Studio users. Specifically, pointing out that you have to pass additional parameters to llvm-lit and explicitly specify python on the command line. 2013-05-01 19:13:50 +00:00
GoldPlugin.rst
HowToAddABuilder.rst
HowToBuildOnARM.rst ARM build docs easier for copy&paste 2013-02-25 18:25:58 +00:00
HowToReleaseLLVM.rst Typo 2013-05-28 11:28:37 +00:00
HowToSetUpLLVMStyleRTTI.rst [docs] Discuss a potential bug to be aware of. 2013-03-16 16:58:20 +00:00
HowToSubmitABug.rst
HowToUseAttributes.rst
HowToUseInstrMappings.rst
index.rst Linking ReleaseProcess doc with the world 2013-05-28 10:32:55 +00:00
LangRef.rst Minor grammar and word usage fix to 'returned' parameter attribute section of LangRef 2013-06-20 21:55:10 +00:00
Lexicon.rst
LinkTimeOptimization.rst
linpack-pc.png
LLVMBuild.rst Fix grammar in LLVMBuild.rst 2013-04-18 16:39:32 +00:00
LLVMBuild.txt
make.bat
Makefile
Makefile.sphinx
MakefileGuide.rst
MarkedUpDisassembly.rst
NVPTXUsage.rst Add start of user documentation for NVPTX 2013-03-30 16:41:14 +00:00
Packaging.rst
Passes.rst docs/Passes: fix some typos 2013-05-18 18:01:44 +00:00
Phabricator.rst
ProgrammersManual.rst [docs] The STL "binary search" has a non-obvious name. 2013-03-29 21:57:47 +00:00
Projects.rst
re_format.7
README.txt [docs] Discuss manpage output. 2013-02-27 18:48:42 +00:00
ReleaseNotes.rst Add a release note for removing the simplify-libcalls pass. 2013-06-21 03:08:23 +00:00
ReleaseProcess.rst Update Release Process doc 2013-06-12 11:35:33 +00:00
SegmentedStacks.rst
SourceLevelDebugging.rst Debug Info: Update documentation to match recent (& not so recent) schema changes 2013-05-29 02:05:13 +00:00
SphinxQuickstartTemplate.rst [docs] Provide pointer for building Sphinx docs. 2013-02-27 18:33:21 +00:00
SystemLibrary.rst
TableGenFundamentals.rst
TestingGuide.rst fix small doc typo 2013-03-22 16:09:06 +00:00
TestSuiteMakefileGuide.rst
Vectorizers.rst Fix a grammar mistake, and add a line about the two phases that the BB/SLP vectorizers have (top-down and bottom-up). 2013-04-15 22:21:25 +00:00
WritingAnLLVMBackend.rst TableGen: Generate a function for getting operand indices based on their defined names 2013-06-25 21:22:09 +00:00
WritingAnLLVMPass.rst
yaml2obj.rst
YamlIO.rst [docs] Replace non-existent LLVM_YAML_UNIQUE_TYPE() macro 2013-06-04 23:36:41 +00:00

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 docs/
    make -f Makefile.sphinx
    $BROWSER _build/html/index.html

The mapping between reStructuredText files and generated documentation is
`docs/Foo.rst` <-> `_build/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/man/`.

    cd docs/
    make -f Makefile.sphinx man
    man -l _build/man/FileCheck.1

The correspondence between .rst files and man pages is
`docs/CommandGuide/Foo.rst` <-> `_build/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`.