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

Thu Mar 3 20:40:13 UTC 2022

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).

This pull request has now been integrated.

Changeset: dd83c4e7
Author:    Dmitry Chuyko <dchuyko at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
URL:       https://git.openjdk.java.net/jdk17u-dev/commit/dd83c4e72d6111482e223723b10cefd6b8b52c49
Stats:     106 lines in 1 file changed: 39 ins; 40 del; 27 mod

8268231: Aarch64: Use Ldp in intrinsics for String.compareTo

Backport-of: 6d1d4d52928ed38bbc73ddcbede5389995a8e65f

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