[ARM] PR66791: Replace builtins for signed vmul_n intrinsics

Prathamesh Kulkarni prathamesh.kulkarni@linaro.org
Tue Aug 24 08:01:58 GMT 2021


On Fri, 13 Aug 2021 at 16:40, Prathamesh Kulkarni
<prathamesh.kulkarni@linaro.org> wrote:
>
> On Thu, 5 Aug 2021 at 15:44, Prathamesh Kulkarni
> <prathamesh.kulkarni@linaro.org> wrote:
> >
> > On Mon, 12 Jul 2021 at 15:24, Prathamesh Kulkarni
> > <prathamesh.kulkarni@linaro.org> wrote:
> > >
> > > On Mon, 12 Jul 2021 at 15:23, Prathamesh Kulkarni
> > > <prathamesh.kulkarni@linaro.org> wrote:
> > > >
> > > > On Mon, 5 Jul 2021 at 14:47, Prathamesh Kulkarni
> > > > <prathamesh.kulkarni@linaro.org> wrote:
> > > > >
> > > > > Hi,
> > > > > This patch replaces builtins with __a * __b for signed variants of
> > > > > vmul_n intrinsics.
> > > > > As discussed earlier, the patch has issue if __a * __b overflows, and
> > > > > whether we wish to leave
> > > > > that as UB.
> > > > ping https://gcc.gnu.org/git/gitweb.cgi?p=gcc.git;h=6785eb595981abd93ad85edcfdf1d2e43c0841f5
> > > Oops sorry, I meant this link:
> > > https://gcc.gnu.org/pipermail/gcc-patches/2021-July/574428.html
> > ping * 2 https://gcc.gnu.org/pipermail/gcc-patches/2021-July/574428.html
> ping * 3 https://gcc.gnu.org/pipermail/gcc-patches/2021-July/574428.html
ping * 4 https://gcc.gnu.org/pipermail/gcc-patches/2021-July/576321.html

Thanks,
Prathamesh
>
> Thanks,
> Prathamesh
> >
> > Thanks,
> > Prathamesh
> > >
> > > Thanks,
> > > Prathamesh
> > > >
> > > > Thanks,
> > > > Prathamesh
> > > > >
> > > > > Thanks,
> > > > > Prathamesh


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