Commit Graph

9 Commits

Author SHA1 Message Date
David Greene 5d5d88cc1a Process Defm Prefix as Init
Parse and process a defm prefix as an Init expression.  This allows
paste operations to create defm prefixes.

llvm-svn: 142523
2011-10-19 13:04:31 +00:00
David Greene 2affd67b51 Parse Def ID as Value
Allow def and defm IDs to be general values.  We need this for paste
functionality.

llvm-svn: 142522
2011-10-19 13:04:29 +00:00
David Greene d4263a6ad0 Make ID Parsing More Flexible
Add a mode control to value and ID parsers.  The two modes are:

- Parse a value.  Expect the parsed ID to map to an existing object.

- Parse a name.  Expect the parsed ID to not map to any existing object.

The first is used when parsing an identifier to be looked up, for
example a record field or template argument.  The second is used for
parsing declarations.  Paste functionality implies that declarations
can contain arbitrary expressions so we need to be able to call into
the general value parser to parse declarations with paste operators.
So we need a way to parse a value-like thing without expecting that
the result will map to some existing object.  This parse mode provides
that.

llvm-svn: 142519
2011-10-19 13:04:20 +00:00
David Greene db10e69138 Make Template Arg Names Inits
Allow template arg names to be Inits.  This is further work to
implement paste as it allows template names to participate in paste
operations.

llvm-svn: 142500
2011-10-19 13:02:42 +00:00
David Greene 3ca42126f5 Let SetValue Take and Init Name
Convert SetValue to take the value name as an Init.  This allows us to
set values for variables whose names are not yet fully resolved.

llvm-svn: 142499
2011-10-19 13:02:39 +00:00
David Greene 33f619971f Remove Multidefs
Multidefs are a bit unwieldy and incomplete.  Remove them in favor of
another mechanism, probably for loops.

Revert "Make Test More Thorough"
Revert "Fix a typo."
Revert "Vim Support for Multidefs"
Revert "Emacs Support for Multidefs"
Revert "Document Multidefs"
Revert "Add a Multidef Test"
Revert "Update Test for Multidefs"
Revert "Process Multidefs"
Revert "Parser Multidef Support"
Revert "Lexer Support for Multidefs"
Revert "Add Multidef Data Structures"

llvm-svn: 141378
2011-10-07 18:25:05 +00:00
David Greene dd1eb61298 Parser Multidef Support
Add parser support to recognize multidefs.  No processing on the
multidef is done at this point.  The grammar is:

MultiDef = MULTIDEF ObjectName < Value, Declaration, Value > ObjectBody

The first Value must be resolveable to a list and the second Value
must be resolveable to an integer.  The Declaration is a temporary
value used as an iterator to refer to list items during processing.
It may be passed into the ObjectBody where it will be substituted with
the list value used to instantiate each def.

llvm-svn: 141232
2011-10-05 22:42:44 +00:00
David Greene db44597494 Refactor Multiclass Def Processing
Move the code to instantiate a multiclass def, bind its arguments and
resolve its members into three helper functions.  These will be reused
to support a new kind of multiclass def: a multidef.

llvm-svn: 141229
2011-10-05 22:42:07 +00:00
Peter Collingbourne 84c287e33c Move TableGen's parser and entry point into a library
This is the first step towards splitting LLVM and Clang's tblgen executables.

llvm-svn: 140951
2011-10-01 16:41:13 +00:00