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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>
Thu, 20 Feb 2025 15:31:50 +0000 (15:31 +0000)
commit163b1bbb76caba4d9673c07940c5930a1afa7548
tree8b99d9c978ffdd89299c245ea01916ea4c0b1621tree
parent5a4573be6f96ff49111bb6cae767676b5aafa7a8commit | 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>
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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