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Date: Sun, 21 Sep 2008 23:19:08 +0200
From: Thiemo Seufer <ths@networkno.de>
Subject: Re: [Qemu-devel] [5281] Use the new concat_i32_i64 op for std and stda
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To: Blue Swirl <blauwirbel@gmail.com>
Cc: Paul Brook <paul@codesourcery.com>, qemu-devel@nongnu.org

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