[PATCH][Arm] Auto-vectorization for MVE: vmul

[Dennis Zhang]

Hi kyrylo,

> ________________________________________
> From: Kyrylo Tkachov <Kyrylo.Tkachov@arm.com>
> Sent: Wednesday, October 14, 2020 10:14 AM
> To: Dennis Zhang; gcc-patches@gcc.gnu.org
> Cc: nd; Richard Earnshaw; Ramana Radhakrishnan
> Subject: RE: [PATCH][Arm] Auto-vectorization for MVE: vmul
> 
> Hi Dennis,
> 
> > -----Original Message-----
> > From: Dennis Zhang <Dennis.Zhang@arm.com>
> > Sent: 06 October 2020 17:55
> > To: gcc-patches@gcc.gnu.org
> > Cc: Kyrylo Tkachov <Kyrylo.Tkachov@arm.com>; nd <nd@arm.com>;
> > Richard Earnshaw <Richard.Earnshaw@arm.com>; Ramana Radhakrishnan
> > <Ramana.Radhakrishnan@arm.com>
> > Subject: [PATCH][Arm] Auto-vectorization for MVE: vmul
> >
> > Hi all,
> >
> > This patch enables MVE vmul instructions for auto-vectorization.
> > It includes MVE in expander mul<mode>3 to enable vectorization for MVE 
> > and modifies related vmul insns to support the expander by using 'mult'
> > instead of unspec.
> > The mul<mode>3 for vectorization in vec-common.md uses mode iterator
> > VDQWH instead of VALLW to cover all supported modes.
> > The macros ARM_HAVE_<MODE>_ARITH are used to select supported
> > modes for 
> > different targets. The redundant mul<mode>3 in neon.md is removed.
> >
> > Regression tested on arm-none-eabi and bootstraped on
> > arm-none-linux-gnueabihf.
> >
> > Is it OK for trunk please?
> 
> Ok, thank you for your patience.
> Kyrill
> 

Thanks for your approval.
It's committed to trunk at 0f41b5e02fa47db2080b77e4e1f7cd3305457c05

Cheers
Dennis