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AArch64: Improve strrchr
authorWilco Dijkstra <wilco.dijkstra@arm.com>
Wed, 11 Jan 2023 13:53:19 +0000 (13:53 +0000)
committerWilco Dijkstra <wilco.dijkstra@arm.com>
Tue, 17 Jan 2023 15:09:18 +0000 (15:09 +0000)
commit55599d480437dcf129b41b95be32b48f2a9e5da9
treeebcf9b0156026af93b6fa771805480fd8994b34atree
parentad098893ba3c3344a5f2f6ab1627c47204afdb47commit | diff
AArch64: Improve strrchr

Use shrn for narrowing the mask which simplifies code and speeds up small
strings.  Unroll the first search loop to improve performance on large
strings.

Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
sysdeps/aarch64/strrchr.S diff | blob | blame | history
GNU C Library master sources
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