[jdk21u-dev] Integrated: 8320379: C2: Sort spilling/unspilling sequence for better ld/st merging into ldp/stp on AArch64

[Xiaolong Peng]

On Tue, 4 Jun 2024 21:53:56 GMT, Xiaolong Peng <duke at openjdk.org> wrote:

> Backport JDK-8320379: C2: Sort spilling/unspilling sequence for better ld/st merging into ldp/stp on AArch64
> 
> ### Validation
> 
> Tested on AWS Graviton instance by running ```JTREG_KEYWORDS="!headful & !external-dep & !printer" make test TEST=all```, same the test for PR on jdk17, only saw few test failures in CAInterop.java and compiler/intrinsics. 
> 
> - CAInterop tests are known intermittently failing tests, it should be fine to ignore. 
> - The test failures from compiler/intrinsics has error message "Option 'UseSHA3Intrinsics' is expected to have 'true' value Option 'UseSHA3Intrinsics' should be enabled by default", it seems a bug but not related to the backport, will follow up we need to create a bug.

This pull request has now been integrated.

Changeset: a86d0429
Author:    Xiaolong Peng <xlpeng2018 at gmail.com>
Committer: Aleksey Shipilev <shade at openjdk.org>
URL:       https://git.openjdk.org/jdk21u-dev/commit/a86d0429b9f07c17ea0cb8ba1c9d43ec186ed0c6
Stats:     40 lines in 1 file changed: 37 ins; 0 del; 3 mod

8320379: C2: Sort spilling/unspilling sequence for better ld/st merging into ldp/stp on AArch64

Reviewed-by: aph
Backport-of: 3ccd02f14211a3384f27fba1633f9d8421378c9a

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PR: https://git.openjdk.org/jdk21u-dev/pull/665