[PATCH] aarch64: Improve codegen in SVE expm1f and users.

[Wilco Dijkstra]

Hi Luna,

> Use unpredicated muls, use absolute compare and improve memory access.
> 7%, 5% and 1% improvement in throughput microbenchmark on Neoverse V1, for expm1f, sinhf and tanhf > respectively.
> ---
> OK for master? If so please commit for me as I don't have commit rights.

OK - committed.

Cheers,
Wilco