[PATCH] [SCCP] Calculate Null Pointer Comparisons

[Daniel Berlin]

I plan on hacking on it after the newgvn stuff.
(So my guess is about 6-7 months away before i start getting to it)


On Fri, May 15, 2015 at 11:58 AM, Philip Reames
<listmail at philipreames.com> wrote:
>
>
> On 05/15/2015 11:39 AM, Daniel Berlin wrote:
>>
>> On Fri, May 15, 2015 at 10:34 AM, Philip Reames
>> <listmail at philipreames.com> wrote:
>>>
>>> To my knowledge, post-dominance information is not currently used within
>>> LLVM's existing passes.  As a result, you'd need to justify the cost of the
>>> post-dom-tree computation.
>>
>> FWIW: I'd really like us to get to the point where we use
>> post-dominance info more broadly.
>> But yes, we need to justify the cost here.
>
> For the record, I actually completely agree.  We should support post
> dominance all the way through.  I'm getting really sick of hacking around
> not having it.  That's just a much larger project.  :)
>
> Philip
>