Integrated: 8331736: C2: Live Node limit exceeded limit after JDK-8316991

[Cesar Soares Lucas]

On Tue, 4 Jun 2024 16:32:15 GMT, Cesar Soares Lucas <cslucas at openjdk.org> wrote:

> Please, consider this patch to interrupt execution of `split_unique_types` (SUT) when number of live nodes reaches 3/4 of `max_live_nodes`.
> 
> The included test case reproduces the problem. The number of live nodes before running phase 3 of SUT is ~20k, after processing about 750 mergemem nodes the number of live nodes is over 70k. This problem was first encountered when running an old `.jar` file that was created before `invokedynamic` optimizations - that's why I disable string optimizations in the test case. The test case is strongly based on [the method that was originally triggering the problem](https://github.com/Unidata/netcdf-java/blob/c782ef80ab54a09befd6d5065c6baeed54949222/cdm/radial/src/main/java/ucar/nc2/iosp/nids/Nidsheader.java#L2174).
> 
> Tested on Linux, Win, Mac x86_64 tier1-3 and GHA.

This pull request has now been integrated.

Changeset: b351b5f6
Author:    Cesar Soares Lucas <cslucas at openjdk.org>
Committer: Tobias Hartmann <thartmann at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/b351b5f60ed836e6e21aa4ce5681e573a6057eb6
Stats:     181 lines in 2 files changed: 181 ins; 0 del; 0 mod

8331736: C2: Live Node limit exceeded limit after JDK-8316991

Reviewed-by: thartmann, chagedorn

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PR: https://git.openjdk.org/jdk/pull/19545