[LLVMdev] A question about instruction operands.

[Sanjiv.Gupta at microchip.com]

> >>>
> >> It's enclosed inside :
> >>
> >> let isTwoAddress = 1 in {
> >> ...
> >> }
> >>
> >> (you'll need to scroll up a fair amount to find this).
> >>
> >>
> > That means, it gets converted to
> > dst = src;
> > dst = dst + 1;
> >
> > Right ?
> >
> > - Sanjiv
> >
> Yes, I believe the two address instruction pass performs exactly this
> transformation.
> 
Thanks.
How do I communicate if my CopyRegToReg instruction clobbers a register
of another register class? Is it through let Defs = [REG]  { ... } while
defining the instr pattern?

- Sanjiv

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