[ARM] PR66791: Replace builtins for fp and unsigned vmul_n intrinsics

[Christophe Lyon]

Hi Prathamesh,

On Mon, Jul 5, 2021 at 11:25 AM Kyrylo Tkachov via Gcc-patches <
gcc-patches@gcc.gnu.org> wrote:

>
>
> > -----Original Message-----
> > From: Prathamesh Kulkarni <prathamesh.kulkarni@linaro.org>
> > Sent: 05 July 2021 10:18
> > To: gcc Patches <gcc-patches@gcc.gnu.org>; Kyrylo Tkachov
> > <Kyrylo.Tkachov@arm.com>
> > Subject: [ARM] PR66791: Replace builtins for fp and unsigned vmul_n
> > intrinsics
> >
> > Hi Kyrill,
> > I assume this patch is OK to commit after bootstrap+testing ?
>
> Yes.
> Thanks,
> Kyrill
>
>

The updated testcase fails on some configs:
gcc.target/arm/armv8_2-fp16-neon-2.c: vdup\\.16\\tq[0-9]+, r[0-9]+ found 2
times
FAIL:  gcc.target/arm/armv8_2-fp16-neon-2.c scan-assembler-times
vdup\\.16\\tq[0-9]+, r[0-9]+ 3

For instance on arm-none-eabi with default configuration flags
(mode/cpu/fpu)
and default runtestflags.
The same toolchain config also fails on this test when
overriding runtestflags with:
-mthumb/-mfloat-abi=soft/-march=armv6s-m
-mthumb/-mfloat-abi=soft/-march=armv7-m
-mthumb/-mfloat-abi=soft/-march=armv8.1-m.main

Can you fix this please?

Thanks,

Christophe

>
> > Thanks,
> > Prathamesh
>