[llvm-dev] mem2reg not working in this case?

[Johannes Doerfert via llvm-dev]

While this doesn't answer your question it might still solve your problem:

opt -sroa < module_eval0.ll

~ Johannes


On 10/29/21 11:56, Frank Winter via llvm-dev wrote:
> I can't get the alloca in attached function to be promoted to (a) register(s).
>
> I try with
>
> opt -mem2reg < module_eval0.ll
>
> but the output is unchanged. Using LLVM 13 release.
>
> Can anyone see why it's not working? Is this too complicated for mem2reg? The alloca is moved to the beginning.. is this the problem?
>
> Frank
>
>
>
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