[ tree-ssa] PRE problem

Daniel Berlin dberlin@dberlin.org
Sat Feb 21 00:49:00 GMT 2004


On Feb 20, 2004, at 7:02 PM, Diego Novillo wrote:

> On Fri, 2004-02-20 at 18:48, Daniel Berlin wrote:
>
>> Um, Diego, when do you think that code was written?
>> Last week?
>> It hasn't been fundamentally touched in ages (I believe someone 
>> touched
>> the generate_vops part when we moved to having VUSE_OPS_PTR).
>>
> Dan, what is happening here is that we are only *now* discovering that
> the changes made to the copy propagation of pointers were affecting
> PRE.  It is not a bug in PRE, so don't get all defensive on me :)
I'm not getting defensive, i'm simply pointing out that you should have 
updated it when you introduced propagate_copy and may_propagate_copy.

:)
--Dan



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