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Re: Ping^2: A problem simplifying subregs of the hard frame pointer


On 07/28/2010 06:57 PM, Richard Henderson wrote:
> On 07/23/2010 03:21 AM, Bernd Schmidt wrote:
>> Fix subreg handling of HARD_FRAME_POINTER_REGNUM (not an ARM patch,
>> needs review) and revert a Thumb patch which seems to work around the
>> problem:
>>
>>   http://gcc.gnu.org/ml/gcc-patches/2010-07/msg00756.html
> 
> The reload patch looks ok.

Thanks!

> The arm patch looks... odd.  What use is a define_expand that
> only aborts?  Why not delete the pattern entirely, particularly
> since it isn't a pattern name known by the middle-end?

Yeah.  I'm just reverting it to a previous state; I was hoping the other
Richard would either point out why we need the pattern or suggest we
remove it.


Bernd


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