[PATCH] aarch64: Improve codegen in SVE expf & related routines

[Wilco Dijkstra]

Hi Joe,

> Reduce MOV and MOVPRFX by improving special-case handling. Use inline
> helper to duplicate the entire computation between the special- and
> non-special case branches, removing the contention for z0 between x
> and the return value.

Looks good. Committed.

Cheers,
Wilco