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AArch64: Add SVE memset
authorWilco Dijkstra <wilco.dijkstra@arm.com>
Tue, 24 Dec 2024 18:01:59 +0000 (18:01 +0000)
committerWilco Dijkstra <wilco.dijkstra@arm.com>
Fri, 28 Feb 2025 15:13:30 +0000 (15:13 +0000)
commit9569a67a58ead4be66bffdb6335f2ff33835e3ea
tree0521b3e373f5445ee8c3d618e4d82feeedbd3d0ftree
parent59f67e1b82a6f05bac77a0add5e9ea16dfbe75cccommit | diff
AArch64: Add SVE memset

Add SVE memset based on the generic memset with predicated load for sizes < 16.
Unaligned memsets of 128-1024 are improved by ~20% on average by using aligned
stores for the last 64 bytes.  Performance of random memset benchmark improves
by ~2% on Neoverse V1.

Reviewed-by: Yury Khrustalev <yury.khrustalev@arm.com>
(cherry picked from commit 163b1bbb76caba4d9673c07940c5930a1afa7548)
sysdeps/aarch64/multiarch/Makefile diff | blob | blame | history
sysdeps/aarch64/multiarch/ifunc-impl-list.c diff | blob | blame | history
sysdeps/aarch64/multiarch/memset.c diff | blob | blame | history
sysdeps/aarch64/multiarch/memset_sve_zva64.S [new file with mode: 0644] blob
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