Cortex-r52 FP double precision

[Thomas Preudhomme]

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
>