Integrated: 8323122: AArch64: Increase itable stub size estimate

Yude Lin duke at openjdk.org
Tue Jan 16 05:18:26 UTC 2024


On Wed, 10 Jan 2024 02:03:08 GMT, Yude Lin <duke at openjdk.org> wrote:

> Since [JDK-8307352](https://bugs.openjdk.org/browse/JDK-8307352), itable stub size has grown by 20 bytes on linux-aarch64. In particular, the "slop-counted" code increases from 100->120 bytes, where the current estimate is 124 bytes. I haven't found a case where it exceeds the estimate. For now this size is stable across the few linux-aarch64 configurations I ran with. It doesn't vary (for example) by different klass decoding schemes. But I think the idea of the estimate is that we can never know. I propose we increase the estimate to be safe.
> 
> Passed hotspot/jtreg/:tier1

This pull request has now been integrated.

Changeset: 36f4b34f
Author:    Yude Lin <yude.lyd at alibaba-inc.com>
Committer: Denghui Dong <ddong at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/36f4b34f1953af736706ec67192204727808bc6c
Stats:     1 line in 1 file changed: 0 ins; 0 del; 1 mod

8323122: AArch64: Increase itable stub size estimate

Reviewed-by: aph, eastigeevich

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

PR: https://git.openjdk.org/jdk/pull/17336


More information about the hotspot-compiler-dev mailing list