[LLVMdev] tbaa differences in llvm 3.0

[Hal Finkel]

Maurice,

I think that your best option is to submit a patch that adds an option
to turn off the problematic overriding. As Dan confirmed, there is a
comment at the end of BasicAliasAnalysis::aliasGEP regarding "protecting
TBAA in the case of dynamic indices into arrays of unions", and the
logic at issue can be found there. Would a command-line option work for
you?

 -Hal

On Mon, 2012-02-06 at 20:59 -0600, Maurice Marks wrote:
> Is this issue still active? It sounded as though Dan or Hal were
> looking at it but I havent seen an response. Should I resubmit as a
> bug so it gets tracked?
> 
> thanks for your help
> 
> On Tue, Jan 31, 2012 at 1:35 PM, Dan Gohman <gohman at apple.com> wrote:
>         On Jan 30, 2012, at 4:04 PM, Hal Finkel wrote:
>         >
>         > Dan, where in the code is this done? I see a comment at the
>         end of
>         > BasicAliasAnalysis::aliasGEP regarding "protecting TBAA in
>         the case of
>         > dynamic indices into arrays of unions"; are you referring to
>         that?
>         
>         
>         Yes. And looking at the testcase, this appears to be the
>         problem.
>         
>         Dan
>         
> 
> 
> 
> -- 
> Not sent from my Blackberry, Raspberry or Gooseberry!
> 

-- 
Hal Finkel
Postdoctoral Appointee
Leadership Computing Facility
Argonne National Laboratory