[PATCH v2 1/4] math: Optimize fma call on asinpif

[Wilco Dijkstra]

Hi Adhemerval,

> The fma is required only for x == +/-0x1.6371e8p-4f in FE_TOWARDZERO
> to provide correctly rounded results.
>
> Checked on x86_64-linux-gnu and aarch64-linux-gnu.

LGTM.

Reviewed-by: Wilco Dijkstra  <Wilco.Dijkstra@arm.com>

Cheers,
Wilco