llvm dev - Aug 2017 - Converting i32** to [4 x i32]* ?

Hello all,

This is a general question regarding type conversion:

from: <ty>**
to: [<size> x <ty>]*
>From what I understand, bitcast  is wrong in this case because a GEP into a
<ty>** should be computed differently from a GEP into [<size> x
<ty>]*.

So, what is the correct way to perform this type conversion?

Thanks,
Siddharth

-- 
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On 8/11/2017 3:40 PM, Siddharth Bhat via llvm-dev wrote:
> 
> This is a general question regarding type conversion:
> 
> from: <ty>**
> to: [<size> x <ty>]*
> 
>  From what I understand, bitcast  is wrong in this case because a GEP 
> into a <ty>** should be computed differently from a GEP into
[<size> x
> <ty>]*.
> 
> So, what is the correct way to perform this type conversion?
Bitcast, then use the correct form of GEP and other affected instructions.

-Krzysztof

-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, 
hosted by The Linux Foundation

What would the "correct form of GEP be"?

Thanks,
Siddharth

On Fri 11 Aug, 2017, 23:47 Krzysztof Parzyszek via llvm-dev, <
llvm-dev at lists.llvm.org> wrote:
> On 8/11/2017 3:40 PM, Siddharth Bhat via llvm-dev wrote:
> >
> > This is a general question regarding type conversion:
> >
> > from: <ty>**
> > to: [<size> x <ty>]*
> >
> >  From what I understand, bitcast  is wrong in this case because a GEP
> > into a <ty>** should be computed differently from a GEP into
[<size> x
> > <ty>]*.
> >
> > So, what is the correct way to perform this type conversion?
>
> Bitcast, then use the correct form of GEP and other affected instructions.
>
> -Krzysztof
>
> --
> Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
> hosted by The Linux Foundation
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
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>
-- 
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