Some benchmarks on ARM

[Måns Rullgård]

Russell King - ARM Linux <linux at arm.linux.org.uk> writes:

> On Mon, Jul 05, 2010 at 02:24:03PM +0200, Marc Kleine-Budde wrote:
>> We used a compiler generating hardware floating point instruction by
>> default:
>> 
>> gcc was configured with:
>> "--with-float=softfp --with-fpu=vfp --with-cpu=arm1136jf-s"
>
> This is unclear that it's generating hardware floating point instructions.
> The --with-float=softfp suggests its using soft-fp.

That configuration will generate hardware vfp instructions while using
softfloat calling conventions (arguments passed in integer registers).
A pure softfloat configuration would be --with-float=soft.

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mans at mansr.com