Hi Thomas Don't you know by the way why ARMv8-R is not listed in t-rmprofile multilib ?
Alex On Fri, Jan 26, 2018 at 9:25 PM, Thomas Preudhomme <thomas.preudho...@foss.arm.com> wrote: > 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 >>>> >>> >> >> >> > -- Best regards, AF
