[PATCH] Minor Attr.td tablegen additions

[Aaron Ballman]

Ping

On Mon, Jul 22, 2013 at 3:26 PM, Aaron Ballman <aaron at aaronballman.com> wrote:
> Ping
>
> ~Aaron
>
> On Wed, Jul 17, 2013 at 8:57 PM, Aaron Ballman <aaron at aaronballman.com> wrote:
>> There are type attributes and target-specific attributes which get
>> somewhat special semantic handling.  By codifying this as part of the
>> tablegen file, we can generate more specific code in the future as
>> well as more cleanly express intent in the tablegen.
>>
>> This patch is laying some groundwork for eventually removing much of
>> the redundancy from SemaDeclAttr.cpp.  More patches on that are
>> coming.  In and of itself, this patch removes some code from Attr.td
>> (namely ASTNode = 0 declarations on various type attributes), and
>> fixes a mistake with Ptr32, Ptr64, UPtr and SPtr generating AST nodes
>> that are never actually used anywhere.
>>
>> Note that this patch does not add a TypeAttr base class like it does
>> for InheritableAttr (et al) -- there are no type attributes which
>> generate AST nodes currently (this is the same reason there is no
>> TYPE_ATTR macro).
>>
>> ~Aaron