| commit | 23777232c23f80809613bdfa329f63aadf992922 | |
| author | Naohiro Tamura via Libc-alpha <libc-alpha@sourceware.org> | |
| Fri, 27 Aug 2021 05:03:04 +0000 (27 05:03 +0000) | ||
| committer | Szabolcs Nagy <szabolcs.nagy@arm.com> | |
| Fri, 3 Sep 2021 14:59:46 +0000 (3 15:59 +0100) | ||
| tree | 02c8d663d92010187a3176126b7dfb6247540f81 | treesnapshot (tar.gz zip) |
| parent | 69623c0db0a540f26ee537bae09446d3dcdf1f80 | commitdiff |
AArch64: Update A64FX memset not to degrade at 16KB
This patch updates unroll8 code so as not to degrade at the peak
performance 16KB for both FX1000 and FX700.
Inserted 2 instructions at the beginning of the unroll8 loop,
cmp and branch, are a workaround that is found heuristically.
Reviewed-by: Wilco Dijkstra <Wilco.Dijkstra@arm.com>
This patch updates unroll8 code so as not to degrade at the peak
performance 16KB for both FX1000 and FX700.
Inserted 2 instructions at the beginning of the unroll8 loop,
cmp and branch, are a workaround that is found heuristically.
Reviewed-by: Wilco Dijkstra <Wilco.Dijkstra@arm.com>
| sysdeps/aarch64/multiarch/memset_a64fx.S | diffblobblamehistory |