[PATCH] A new HeapToStack allocation promotion pass

[Bill Wendling]

I'm going to rope Michael in on this. He and Dan are the ObjCARC experts. :-)

-bw

On Sep 24, 2013, at 11:14 AM, Hal Finkel <hfinkel at anl.gov> wrote:

> Bill,
> 
> Thanks for the pointer.
> 
> Just noticed this, in ProvenanceAnalysis.h it says:
> 
> /// This file declares a special form of Alias Analysis called ``Provenance
> /// Analysis''. The word ``provenance'' refers to the history of the ownership
> /// of an object. Thus ``Provenance Analysis'' is an analysis which attempts to
> /// use various techniques to determine if locally
> 
> if locally what? I think something was truncated here.
> 
> -Hal
> 
> ----- Original Message -----
>> 
>>  I haven't reviewed the patch itself just yet. But what you're doing
>>  here seems very similar to how the ARC Optimizer works (in
>>  lib/Transformations/ObjCARC). It may be beneficial to look at how
>>  it does things. In particular, it removes "retains" and "releases"
>>  from the code. There is a lot of analysis that needs to go into
>>  this, of course.
>> 
>>  Anyway, just a suggestion.
>> 
>> http://llvm-reviews.chandlerc.com/D1745
>> 
> 
> -- 
> Hal Finkel
> Assistant Computational Scientist
> Leadership Computing Facility
> Argonne National Laboratory