[PATCH v2 2/4] math: Optimize fma call on log2pf1

[Wilco Dijkstra]

Hi Adhemerval,

> Indeed, are you ok with the following:
>
> #ifndef __FP_FAST_FMA
>      /* The fma is required only for x == -0x1.da285cp-5f in FE_TONEAREST
>         to provide correctly rounded results.  */
>      if (__glibc_likely (x != -0x1.da285cp-5f))
>        z = xd * ix[j] - 1.0;
>      else
>#endif
>        z = fma (xd, ix[j], -1.0);

Yes, OK to commit like that.

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

Cheers,
Wilco