[PATCH 7/9][GCC][Arm] Enable autovectorization of Half float values

[Tamar Christina]

Ping.

> -----Original Message-----
> From: gcc-patches-owner@gcc.gnu.org <gcc-patches-owner@gcc.gnu.org>
> On Behalf Of Tamar Christina
> Sent: Sunday, November 11, 2018 10:28
> To: gcc-patches@gcc.gnu.org
> Cc: nd <nd@arm.com>; Ramana Radhakrishnan
> <Ramana.Radhakrishnan@arm.com>; Richard Earnshaw
> <Richard.Earnshaw@arm.com>; nickc@redhat.com; Kyrylo Tkachov
> <Kyrylo.Tkachov@arm.com>
> Subject: [PATCH 7/9][GCC][Arm] Enable autovectorization of Half float values
> 
> Hi All,
> 
> The AArch32 backend is currently not able to support autovectorization of
> half-float values on ARM. This is because we never told the vectorizer what
> the vector modes are for Half floats.
> 
> This enables autovectorization by definiting V4HF and V8HF as the vector
> modes.
> 
> Bootstrap and Regtest on aarch64-none-linux-gnu, arm-none-gnueabihf and
> x86_64-pc-linux-gnu are still on going but previous patch showed no
> regressions.
> 
> Ok for trunk?
> 
> Thanks,
> Tamar
> 
> gcc/ChangeLog:
> 
> 2018-11-11  Tamar Christina  <tamar.christina@arm.com>
> 
> 	* config/arm/arm.c (arm_preferred_simd_mode): Add V4HF and
> V8HF.
> 
> --