On Thu, 29 Jul 2021 at 14:57, Kyrylo Tkachov <Kyrylo.Tkachov@arm.com> wrote:
>
> Hi Prathamesh,
>
> > -----Original Message-----
> > From: Prathamesh Kulkarni <prathamesh.kulkarni@linaro.org>
> > Sent: 26 July 2021 22:24
> > To: gcc Patches <gcc-patches@gcc.gnu.org>; Kyrylo Tkachov
> > <Kyrylo.Tkachov@arm.com>; Richard Earnshaw
> > <Richard.Earnshaw@foss.arm.com>
> > Subject: [ARM] PR66791: Replace builtins in vld1
> >
> > Hi,
> > Similar to aarch64, this patch replaces call to builtin by
> > dereferencing __a in vld1_p64, vld1_s64 and vld1_u64.
> >
> > The patch changes code-gen for the intrinsic as follows:
> > Before patch:
> >         vld1.64 {d16}, [r0:64]
> >         vmov    r0, r1, d16     @ int
> >         bx      lr
> >
> > After patch:
> >         ldrd    r0, [r0]
> >         bx      lr
> >
> > I assume the code-gen after patch is correct, since it loads two
> > consecutive words from [r0] into r0 and r1 ?
>
> Yes, this looks correct.
>
> >
> > Bootstrapped+tested on arm-linux-gnueabihf.
> > OK to commit ?
>
> Ok. Can we now remove the vld1 builtin definition?
Does the attached patch look OK ?
I suppose we can only remove entry for di since the patch replaces
calls to only __builtin_neon_vld1di ?

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