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* aarch64: Add half-width versions of AdvSIMD f32 libmvec routinesJoe Ramsay2023-12-201-1/+3
| | | | | | | | | | | Compilers may emit calls to 'half-width' routines (two-lane single-precision variants). These have been added in the form of wrappers around the full-width versions, where the low half of the vector is simply duplicated. This will perform poorly when one lane triggers the special-case handler, as there will be a redundant call to the scalar version, however this is expected to be rare at Ofast. Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
* aarch64: Add vector implementations of expm1 routinesJoe Ramsay2023-11-201-0/+117
May discard sign of 0 - auto tests for -0 and -0x1p-10000 updated accordingly.