llvm dev - Aug 2015 - struct within a struct vs struct with its fields copied

I'm not familiar with how LLVM will optimize or behave given:

struct F { int }

Struct G { int, int }

Struct H { F, int }

Is there a difference between G & H w.r.t to optimizations?

I'm no expert but AFAIK optimizations would depend on how you use G & H.

Jake

On Tue, Aug 25, 2015 at 8:48 AM, Hayden Livingston via llvm-dev <
llvm-dev at lists.llvm.org> wrote:
> I'm not familiar with how LLVM will optimize or behave given:
>
> struct F { int }
>
> Struct G { int, int }
>
> Struct H { F, int }
>
> Is there a difference between G & H w.r.t to optimizations?
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
>
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On Tue, Aug 25, 2015 at 08:48:15AM -0700, Hayden Livingston via llvm-dev
wrote:
> I'm not familiar with how LLVM will optimize or behave given:
> 
> struct F { int }
> 
> Struct G { int, int }
> 
> Struct H { F, int }
> 
> Is there a difference between G & H w.r.t to optimizations?
Are you starting from C? If yes, TBAA can make a difference.

Joerg