[PATCH ARM]Prefer neon for stringops on a53/a57 in AArch32 mode

["Bin Cheng" <bin dot cheng at arm dot com>]

Hi,
As commented at https://gcc.gnu.org/ml/gcc-patches/2014-09/msg00684.html,
this is a simple patch enabling neon memset inlining on
cortex-a53/cortex-a57 in AArch32 mode.

Test on
arm-none-linux-gnueabihf/--with-cpu=cortex-a57/--with-fpu=crypto-neon-fp-arm
v8/--with-float=hard.  I will further collect benchmark data, see if there
is regression.

Is it ok if benchmark results are good?

2014-11-13  Bin Cheng  <bin.cheng@arm.com>

	* config/arm/arm.c (arm_cortex_a53_tune, arm_cortex_a57_tune):
Prefer
	neon for stringops on cortex-a53/a57 in AArch32 mode.

Attachment: memset-inline-aarch32-20140911.txt
Description: Text document