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Re: [patch] Fix vectorizer testsuite failures, including PR 46312
Ramana Radhakrishnan <ramana.gcc@googlemail.com> wrote on 16/11/2010
02:33:57 PM:
> On Tue, Nov 16, 2010 at 12:23 PM, Ira Rosen <IRAR@il.ibm.com> wrote:
> >
> >
> > Tejas Belagod <tejas.belagod@arm.com> wrote on 16/11/2010 01:01:35 PM:
> >
> >> On Mon, 2010-11-15 at 14:02 +0200, Ira Rosen wrote:
> >> > Hi,
> >> >
> >> > vect-scal-opt*.c check vector shift with scalar shift argument. So I
> > added
> >> > vect_shift_scalar keyword for them. I only put x86_64-*-* there.
What
> > other
> >> > targets support such shifts?
> >>
> >> Ira,
> >>
> >> ARM-NEON supports vector shift left and right with a scalar immediate.
> >>
> >> VSH{R/L}.{S/U}{8/16/32/64} {Q/D}, {Q/D}, #imm
> >
> > But it doesn't work here, I see shift with vector arg:
> >
> > v2_13 = {k.1_12, k.1_12, k.1_12, k.1_12, k.1_12, k.1_12, k.1_12,
k.1_12};
> > r1.2_14 = v0_4 >> v2_13;
> >
> > I used -O -fdump-tree-veclower ?-mfpu=neon -ffast-math
-mfloat-abi=softfp.
> >
>
> Might just be that we don't support this yet, though I do remember a
> patch from earlier this year. I can't remember how this changed over
> time.
>
> http://gcc.gnu.org/ml/gcc-patches/2010-02/msg00462.html
I found this ping http://gcc.gnu.org/ml/gcc-patches/2010-10/msg01545.html.
I don't think the patch was committed.
Ira
>
>
> Ramana
>
>
>
>
> > Thanks,
> > Ira
> >
> >>
> >> Thanks,
> >> Tejas.
> >>
> >>
> >>
> >>
> >
> >