[PATCH][libobjc,rs6000,testsuite] Fix DDmode ICE on testcase.

[Andrew Pinski]

On 9/26/07, Peter Bergner <bergner@vnet.ibm.com> wrote:
> I wasn't sure what values I could be comparing against, so I went
> with the "safe" option of defining DDmode the same as DFmode so
> we just end up re-calculating the same condition.  If you know
> that changing DDmode to -1 is always safe (ie, never matches),
> I can change that.

-1 will never match as what is being compared against is a character
for the encoding of the type.

> Well, AFAIK, DFP is only defined for C at the moment.
> Do we really want to add DFP support to Objective-C before
> there's a TR or standard document specifying what that
> support will entail?

Objective-C is not really standardized :).  Anyways it is a strict
superset of C (unlike C++) so dfp should just work. The encoding issue
is the only issue with dfp support for Objective-C really, every thing
else should just work, in fact what should happen for the C testsuite
is also run it in Objective-C mode to make sure everything just works.
In fact the parser for Objective-C is just the C parser with some extensions.

If you don't want to file a bug, I will go and file one for dfp and
also the new fixed point type encoding (there is already one for
incorrectly encoding enums and also for vectors).

Thanks,
Andrew Pinski