[LLVMdev] writing an alias analysis pass?

[Matthew O'Connor]

On Fri, May 2, 2014 at 6:59 AM, Tobias Güntner <fatbull at web.de> wrote:

> Am 29.04.2014 19:18, schrieb Matthew O'Connor:
>
>  I want to be able to load my pass from an external library & not have it
>> compiled into opt.
>>
>
> INITIALIZE_AG_PASS defines initialization functions, but it does not
> actually call them. Try this instead:
>
>
> static RegisterPass<EverythingMustAlias> X("must-aa", "Everything must
> alias", false, true);
> static RegisterAnalysisGroup<AliasAnalysis> Y(X);
>
> I suppose INITIALIZE_AG_PASS is only required if the pass is directly
> linked into LLVM so it won't be initialized too early (before the rest of
> LLVM has been initialized). This isn't an issue for plugins, so static
> initialization works just fine there. But that's just my guess. ;)
>

That did it. Thanks. :)

Regards,
> Tobias
>
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