[LLVMdev] Operand constrain specification

[Cameron McInally]

On Tue, Jul 16, 2013 at 12:19 PM, Demikhovsky, Elena
<elena.demikhovsky at intel.com> wrote:
> Hi,
>
> How can I specify in a .td file that source and destination should not use
> the same register?

Hey Elena,

We use @earlyclobber. E.g.

let Constraints = "@earlyclobber $dst" {
...
}

-Cameron