[RFC] propagating loop dependences from trees to RTL (for SMS)

[Devang Patel]

On Sep 22, 2005, at 7:39 PM, Kenneth Zadeck wrote:

> I will pull a patch together tomorrow.  There is currently nothing  
> in the code for keeping the region stuff up to date as changes are  
> made to the cfg.  For most changes this would not be hard, but for  
> some it is really hard.

OK. I've code (about 6 months old) to keep loop info update during  
jump threading. I couldn't finish that work to keep loop info upto  
date from very beginning till end at that time. But now, I am seeing  
some day light, so hopefully I'll get back to it soon.

-
Devang

> Daniel Berlin wrote:
>
>> On Thu, 2005-09-22 at 18:49 -0700, Devang Patel wrote:
>>
>>
>>> On Sep 22, 2005, at 2:32 AM, Steven Bosscher wrote:
>>>
>>>
>>>
>>>> On Sep 22, 2005 11:25 AM, Zdenek Dvorak   
>>>> <rakdver@atrey.karlin.mff.cuni.cz> wrote:
>>>>
>>>>
>>>>
>>>>>> 4. Other ideas?
>>>>>>
>>>>>>
>>>>>>
>>>>> Preserving the information about loops throughout the   
>>>>> optimizations, and
>>>>> just keeping this information attached at the loop description   
>>>>> would by
>>>>> far be the cleanest approach -- admitedly also the one that   
>>>>> requires the
>>>>> greatest amount of work.
>>>>>
>>>>>
>>>>>
>>>> Shouldn't the regions patch allow us to preserve loops quite  
>>>> easily?
>>>>
>>>>
>>> Any pointer to this "regions patch" ?
>>> Thanks,
>>>
>>>
>>
>> Ask kenny for a copy.
>>
>>
>

-
Devang