[PATCH] Optimized generic expf and exp2f

[Arjan van de Ven]

On 9/5/2017 9:54 AM, Szabolcs Nagy wrote:
> Based on new expf and exp2f code from
> https://github.com/ARM-software/optimized-routines/
> 
> with https://sourceware.org/ml/libc-alpha/2017-08/msg01126.html
> expf reciprocal-throughput: 3.3x faster
> expf latency: 1.7x faster
> libm.so size: -8byte data, -2140byte text
> expf/exp2f worst case nearest rounding ulp error: 0.502
> 


you mentioned x86 data.. is that based on current git after
the recent optimizations (on a cpu with fma)?