[jdk17u-dev] Integrated: 8274243: Implement fast-path for ASCII-compatible CharsetEncoders on aarch64

[Ningsheng Jian]

On Tue, 23 May 2023 04:09:46 GMT, Ningsheng Jian <njian at openjdk.org> wrote:

> Clean backport of JDK-8274243. Related x86 version (JDK-8274242) has been backported to 17.02 and ppc version (JDK-8277846) backported to 17.03.
> 
> I found this patch while trying to backport my JDK-8307572. Without this backport, JDK-8307572 will not be a clean backport to jdk17u.
> 
> The backport of JDK-8274242 (x86), already contains the java and c2 common part, so we can see performance improvement on AArch64 with this patch.
> 
> No new jtreg test failure with both release and fastdebug build.

This pull request has now been integrated.

Changeset: b10ac577
Author:    Ningsheng Jian <njian at openjdk.org>
Committer: Paul Hohensee <phh at openjdk.org>
URL:       https://git.openjdk.org/jdk17u-dev/commit/b10ac577b9c88d8b8030afcbf93faa67a20563ae
Stats:     256 lines in 6 files changed: 126 ins; 90 del; 40 mod

8274243: Implement fast-path for ASCII-compatible CharsetEncoders on aarch64

Backport-of: ddddec7d74745905230282124524a0dbdd1bd1c1

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PR: https://git.openjdk.org/jdk17u-dev/pull/1386