[LLVMdev] How to declare intrinsic that takes pointer to routine?

[David Majnemer]

On Thu, Apr 30, 2015 at 5:19 PM, Robison, Arch <arch.robison at intel.com>
wrote:

> Suppose I want to define an intrinsic that takes a pointer to a routine.
> E.g., an intrinsic version of qsort, or for argument's sake, an intrinsic
> form for this hypothetical routine:
>
>        void* foobitize(void thunk(void*,void*));
>
> How do I defined the intrinsic in llvm/IR/Intrinsics.td ?  It looks like I
> need to define a new class, but I'm lost about what I need to do.  There
> doesn't seem to be any prior examples of intrinsics that take pointers to
> routines.
>
> This not something I'm planning to submit as a commit; it's just part of
> an experiment.
>

I think there are some intrinsics which just take llvm_ptr_ty and require
their callers to bitcast to i8*.


>
> - Arch D. Robison
>
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20150430/89ab1340/attachment.html>