Cortex-r52 FP double precision

[Thomas Preudhomme]

That or just use -mfpu=auto (as in -mcpu=cortex-r52 -mfpu=auto 
-mfloat-abi=(softfp|hard)).

Best regards,

Thomas

On 26/01/18 16:44, Alexander Fedotov wrote:
> Thank you Thomas
> 
> So in order to set dp+Neon for armv8-r I should to use switch
> "neon-fp-armv8". Not an fpv5-d16. Right ?
> 
> On Fri, Jan 26, 2018 at 12:52 PM, Thomas Preudhomme
> <thomas.preudhomme@foss.arm.com> wrote:
>> Hi Alexander,
>>
>> As mentioned in [1], Arm Cortex-R52 can have either single precision or
>> double precision + Neon. This is reflected in GCC 8 by -mcpu=cortex-r52
>> defaulting to the latter (double precision + Neon) and
>> -mcpu=cortex-r52+nofp.dp giving you the former (single precision).
>>
>> [1] https://developer.arm.com/products/processors/cortex-r/cortex-r52
>>
>> Best regards,
>>
>> Thomas
>>
>>
>> On 25/01/18 21:22, Alexander Fedotov wrote:
>>>
>>> Hi,
>>> As I understand from this
>>> https://gcc.gnu.org/onlinedocs/gcc/ARM-Options.html current master
>>> branch doesn't have support of double-precision FPv5 floating-point
>>> instructions for ARMv8-R (Cortex-r52).
>>> If yes, are there any chances to see them in GCC 8 ?
>>>
>>> Alex
>>>
>>
> 
> 
>