RFR: 8268231: Aarch64: Use ldp in intrinsics for String.compareTo [v4]

Wed Jul 28 09:32:31 UTC 2021

On Wed, 28 Jul 2021 08:51:38 GMT, Andrew Haley <aph at openjdk.org> wrote:

> The trouble is, what does "worse" mean? I'm looking at SDEN-1982442, Neoverse N2 errata, 2001293, and I see that LDP has to be slowed down on streaming workloads, which will affect this. (That's just an example: I'm making the point that implementations differ.)

We are testing on HiSilicon TSV110, maybe we can enable this optimization by default on the verified platforms.

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PR: https://git.openjdk.java.net/jdk/pull/4722