Re: [PATCH][AArch64] Fix Cortex-A53 shift costs

[Kyrill Tkachov]

On 01/05/15 14:07, Wilco Dijkstra wrote:

Marcus Shawcroft wrote:
On 5 March 2015 at 14:49, Wilco Dijkstra <wdijk...@arm.com> wrote:

This patch fixes the shift costs for Cortex-A53 so they are more accurate - 
immediate shifts

use

SBFM/UBFM which takes 2 cycles, register controlled shifts take 1 cycle. 
Bootstrap and

regression

OK.

ChangeLog:
2015-03-05  Wilco Dijkstra  <wdijk...@arm.com>

         * gcc/config/arm/aarch-cost-tables.h (cortexa53_extra_costs):
         Make Cortex-A53 shift costs more accurate.

OK /Marcus

Kyrill, could you check this in please? Patch attached

Hi Wilco,

I've committed this with r222678.

Cheers,
Kyrill

Wilco

2015-05-01  Wilco Dijkstra  <wdijk...@arm.com>

        * gcc/config/arm/aarch-cost-tables.h (cortexa53_extra_costs):
        Make Cortex-A53 shift costs more accurate.