[jdk17u-dev] RFR: 8268231: Aarch64: Use Ldp in intrinsics for String.compareTo

[Andrew Dinn]

On Thu, 13 Jan 2022 14:48:40 GMT, Dmitry Chuyko <dchuyko at openjdk.org> wrote:

> Original patch applies cleanly.
> 
> Benchmark results of test/micro/org/openjdk/bench/java/lang/StringCompareToDifferentLength.java correspond to original issue, 10-25% 17u improvements on Graviton 2 for long enough strings (72+ chars).
> 
> Testing: tier1, tier2 (aarch64).

Thank you for that further input, Dmitry. I'll leave it to the maintainers to make the final decision.

-------------

PR: https://git.openjdk.java.net/jdk17u-dev/pull/91