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Fix a couple of typos and an inaccurate description in the new TableGen doc

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204363 91177308-0d34-0410-b5e6-96231b3b80d8
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Eli Bendersky 2014-03-20 17:45:30 +00:00
parent faec753dd4
commit f631e0b64e
1 changed files with 6 additions and 7 deletions
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13
docs/TableGen/index.rst
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@ -23,7 +23,7 @@ amount of duplication in the description, reduces the chance of error, and makes
it easier to structure domain specific information.
The core part of TableGen parses a file, instantiates the declarations, and
hands the result off to a domain-specific `backends`_ for processing.
hands the result off to a domain-specific `backend`_ for processing.
The current major users of TableGen are :doc:`../CodeGenerator`
and the
@ -145,11 +145,10 @@ of the x86 architecture. ``def ADD32rr`` defines a record named
``ADD32rr``, and the comment at the end of the line indicates the superclasses
of the definition. The body of the record contains all of the data that
TableGen assembled for the record, indicating that the instruction is part of
the "X86" namespace, the pattern indicating how the instruction should be
emitted into the assembly file, that it is a two-address instruction, has a
particular encoding, etc. The contents and semantics of the information in the
record are specific to the needs of the X86 backend, and are only shown as an
example.
the "X86" namespace, the pattern indicating how the instruction is selected by
the code generator, that it is a two-address instruction, has a particular
encoding, etc. The contents and semantics of the information in the record are
specific to the needs of the X86 backend, and are only shown as an example.
As you can see, a lot of information is needed for every instruction supported
by the code generator, and specifying it all manually would be unmaintainable,
@ -182,7 +181,7 @@ refer to ``NAME`` anywhere she desires to use the ultimate name of the ``def``.
Syntax
======
TableGen has a syntax that is losely based on C++ templates, with built-in
TableGen has a syntax that is loosely based on C++ templates, with built-in
types and specification. In addition, TableGen's syntax introduces some
automation concepts like multiclass, foreach, let, etc.