[PATCH] ARM: do not add a regmask for TAILJUMPs Was: [PATCH] improve arm machine code (make -verify-machineinstrs happier)

Renato Golin renato.golin at linaro.org
Thu Oct 3 18:03:25 PDT 2013


LGTM

Cheers,
Renato
On 4 Oct 2013 01:26, "Matthias Braun" <mbraun at apple.com> wrote:

> Attached is a revised version with testcase.
>
> Description: ARM: do not add a regmask for TAILJUMPs
> The jump doesn't really kill the registers, the following call does but
> we never get back anyway.
> This works around some verify-machineinstrs problems when TAILJUMPs are
> if-converted.
>
> Greetings
>         Matthias
>
>
>
> On Oct 3, 2013, at 10:41 AM, Matthias Braun <mbraun at apple.com> wrote:
>
> > The attached 3 patches improve some cases in the ARM backend where bad
> code (in the sense of -verify-machineinstrs) was produced. Please review,
> thanks.
> >
> > Greetings,
> >       Matthias
> >
> <ARM-do-not-add-a-regmask-for-TAILJUMPs.patch><ARM-optimizeSelect-has-to-consider-the-previous-regi.patch><ARM-preserv-undef-flag-in-pseudo-instruction-expande.patch>_______________________________________________
> > llvm-commits mailing list
> > llvm-commits at cs.uiuc.edu
> > http://lists.cs.uiuc.edu/mailman/listinfo/llvm-commits
>
>
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