[llvm-dev] Preserving the type of structure

David Blaikie via llvm-dev llvm-dev at lists.llvm.org
Mon Mar 2 16:55:28 PST 2020

I don't have a lot more detail, sorry.

I will say: generally LLVM IR doesn't preserve this sort of information. If
you're building optimizations, please revisit the basis/premise of your
optimizations. If you're implementing source analysis tools - consider
doing that using Clang tooling and/or the Clang Static Analyzer.

On Mon, Mar 2, 2020 at 9:55 AM sangeeta chowdhary <
sangitachowdhary at gmail.com> wrote:

> Hi David,
> Thanks for the response. I was wondering if you have any concrete steps to
> get this information from TBAA data?
> If you can point me towards some source or example then it would be really
> helpful.
> Regards,
> Sangeeta
> On Sat, Feb 29, 2020 at 5:30 PM David Blaikie <dblaikie at gmail.com> wrote:
>> No - if you really want this sort of information you'd likely find it in
>> the debug info https://llvm.org/docs/SourceLevelDebugging.html or maybe
>> TBAA data.
>> On Fri, Feb 28, 2020 at 7:30 PM sangeeta chowdhary via llvm-dev <
>> llvm-dev at lists.llvm.org> wrote:
>>> Hello,
>>> LLVM IR flattens out the structure with one integer element to i32. Is
>>> there any way to disable this? I want to preserve the type information of
>>> the structure. I tried compiling the program with O0, it maintains the type
>>> for most of the instructions but for all.
>>> Regards,
>>> Sangeeta
>>> _______________________________________________
>>> LLVM Developers mailing list
>>> llvm-dev at lists.llvm.org
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