On Mon, 21 Oct 2024 04:11:03 GMT, Jasmine Karthikeyan
wrote:
> Hi all,
> This patch adds a new pass to consolidate lowering of complex
> backend-specific code patterns, such as `MacroLogicV` and the optimization
> proposed by #21244. Moving these optimizations to backend code can simplify
> s
On Wed, 25 Oct 2023 06:31:05 GMT, Emanuel Peter wrote:
>> I imagine it would be beneficial if we could merge stores to fields and
>> stores from loads, which are common in object constructions.
>>
>> Thanks.
>
> @merykitty do you have examples for both? Maybe stores to fields already
> works.
On Wed, 18 Oct 2023 13:04:35 GMT, Emanuel Peter wrote:
> This is a feature requiested by @RogerRiggs and @cl4es .
>
> **Idea**
>
> Merging multiple consecutive small stores (e.g. 8 byte stores) into larger
> stores (e.g. one long store) can lead to speedup.
> Recently, @cl4es and @RogerRiggs h
On Sat, 14 Oct 2023 03:21:52 GMT, himichael wrote:
>>> my question is that this feature should improve performance several times,
>>> but it doesn't look like there's much difference between open jdk 22.19 and
>>> jdk 8. is there a problem with my configuration ?
>>
>> Hello @himichael,
>>
>>
On Fri, 13 Oct 2023 07:02:18 GMT, himichael wrote:
>> Srinivas Vamsi Parasa has updated the pull request with a new target base
>> due to a merge or a rebase. The pull request now contains 45 commits:
>>
>> - fix code style and formatting
>> - Merge branch 'master' of https://git.openjdk.java
On Mon, 8 May 2023 09:01:07 GMT, Erik Österlund wrote:
>> I think we use the flag `UseStoreImmI16` for these kinds of situations.
>
> We did indeed run into the predecoder issue when we used testw for normal
> store barriers, so I changed to testl. However, this cmpw is only taken when
> we use
On Sat, 6 May 2023 04:08:42 GMT, Quan Anh Mai wrote:
>> Stefan Karlsson has updated the pull request with a new target base due to a
>> merge or a rebase. The pull request now contains 917 commits:
>>
>> - ZGC: Generational
>>
>>Co-authored-by: S
On Fri, 5 May 2023 07:43:17 GMT, Stefan Karlsson wrote:
>> Hi all,
>>
>> Please review the implementation of Generational ZGC, which can be turned on
>> by adding -XX:+ZGenerational in addition to using -XX:+UseZGC. Generational
>> ZGC is a major rewrite of the non-generational ZGC version tha
On Mon, 3 Apr 2023 09:36:39 GMT, David Holmes wrote:
>> We have the strange situation where calling `t.isAlive()` on a
>> `java.lang.Thread` `t`, will call into the VM (via `alive()` then
>> `isAlive0()`) where the VM then examines the `eetop` field of `t` to extract
>> its `JavaThread` pointe
