From: Thiemo Seufer <ths@networkno.de>
To: Blue Swirl <blauwirbel@gmail.com>
Cc: Paul Brook <paul@codesourcery.com>, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [5281] Use the new concat_i32_i64 op for std and stda
Date: Sun, 21 Sep 2008 23:19:08 +0200 [thread overview]
Message-ID: <20080921211908.GB22151@networkno.de> (raw)
In-Reply-To: <f43fc5580809211002r5adcca7ax68bac307dcea503@mail.gmail.com>
Blue Swirl wrote:
> On 9/21/08, Paul Brook <paul@codesourcery.com> wrote:
> > > Like these patches?
> >
> > > +static inline void tcg_gen_concat_i64_i64(TCGv dest, TCGv low, TCGv high)
> > > +{
> > > + TCGv tmp = tcg_temp_new(TCG_TYPE_I64);
> > > + tcg_gen_shli_i64(tmp, high, 32);
> > > + tcg_gen_or_i64(dest, low, tmp);
> > > + tcg_temp_free(tmp);
> > > +}
> >
> > This should use concat_i32_i64 on 32-bit hosts.
> >
> > Ok with that change, the rename I suggested in my previous mail, and if you
> > add documentation to tcg/README.
>
> Updated. I'll run a couple of tests.
I noticed I could also use the complement ("split"?) to those
instructions in the mips backend. Maybe the same is true for
sparc.
Thiemo
next prev parent reply other threads:[~2008-09-21 21:19 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-21 14:49 [Qemu-devel] [5281] Use the new concat_i32_i64 op for std and stda Blue Swirl
2008-09-21 15:01 ` Paul Brook
2008-09-21 16:08 ` Blue Swirl
2008-09-21 16:29 ` Blue Swirl
2008-09-21 16:41 ` Paul Brook
2008-09-21 17:02 ` Blue Swirl
2008-09-21 21:19 ` Thiemo Seufer [this message]
2008-09-22 16:14 ` Blue Swirl
2008-09-22 16:47 ` Paul Brook
2008-09-21 16:36 ` Paul Brook
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