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.preudho...@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
