[LLVMdev] mapping a virtual register to a specific address

Justin Holewinski justin.holewinski at gmail.com
Fri Jun 22 12:04:57 PDT 2012


On Fri, Jun 22, 2012 at 2:46 PM, amruth.rd <amruth.rd at knights.ucf.edu>wrote:

>
> Does LLVM allow mapping a virtual register to a specific memory location?
> If not, how do we extract information on where the virtual registers are
> mapped to?
>

In general, you do not know where a virtual register is mapped, and the
mapping is dependent on the back-end.  It could be allocated or spilled
onto the stack, or it may live entirely within a physical register (e.g. no
address).


>
> Thanks,
> Amruth
>
>
>
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-- 

Thanks,

Justin Holewinski
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