[LLVMdev] Allocate memory for a class

[B B]

Thank you! It works like a charm

Regards



2013/4/25 Tim Northover <t.p.northover at gmail.com>

> On Thu, Apr 25, 2013 at 3:14 PM, B B <blackbox.dev.ml at gmail.com> wrote:
> > > %call = call noalias i8* @_Znwm(i64 ptrtoint(%class.A*
> getelementptr(%class.A* null, i32 1) to i64))
> > Yes, by "dynamically" I meant at IR code generation time. So if I
> > understand, in your approach I need only to determine how many elements
> are
> > in the structure. How can I get this value?
>
> Actually, you don't even need that. The "1" means "one full struct"
> rather than "after field 1" or anything similar. So it won't change
> depending on how many fields are in the struct.
>
> You might find this page from the docs useful:
> http://llvm.org/docs/GetElementPtr.html
>
> Tim.
>
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