[LLVMdev] Optimization passes break machine instructions on new backend

[Per Fagrell]

It just occured to me that perhaps what happens is that since the
cmp-instruction is initially followed by the pseudo-instruction - which
doesn't have Uses = [CFR] - that it's marked dead initially, and never
changed back when the SKIPCOND is inserted by the custom emitter? But I feel
that this would happen in e.g. MSP430 too then...

On Wed, Dec 15, 2010 at 10:14 AM, Anton Korobeynikov <
anton at korobeynikov.info> wrote:

> Hello Per,
>
> >      SKIPCOND 1, %CFR<imp-use>
> > Or doesn't that count?
> Ah, sorry, I didn't recognize the stuff due to funky name. Let me
> think on the issue more thoroughly then :)
>
> --
> With best regards, Anton Korobeynikov
> Faculty of Mathematics and Mechanics, Saint Petersburg State University
>
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