[tree-ssa]: Code movement is a pain in the ass.

[Daniel Berlin]

On Sunday, August 10, 2003, at 1:11 PM, Diego Novillo wrote:

> On Sun, 2003-08-10 at 01:42, Daniel Berlin wrote:
>
>> Anybody mind if i make bsi_remove take an argument to convince it i'm
>> only removing the statement temporarily (ie moving it), and then add
>> an argument to  remove_stmt to tell it *not* to reset definitions and
>> annotations?
>>
>> That way, i can just remove it from one place, and move it to another?
>>
> Or, how about we create a bsi_move (stmt, from, to)?  'from' and 'to'
> may be iterators or some structure that includes enough info to remap
> the statement from the old location into the new one.

Ideally, it would still use bsi_remove and bsi_insert_after/before 
internally, so we'd still need to be able to tell bsi_remove and 
remove_stmt to not invalidate definitions.
Otherwise we end up copying code from remove_stmt, which seems silly 
when we can just surround 20 lines of it with a if (update_annotations) 
and have it take an extra argument.



>
>
> Diego.
>