RFR: 8331117: [PPC64] secondary_super_cache does not scale well [v2]

[Andrew Haley]

On Fri, 7 Jun 2024 14:38:55 GMT, Amit Kumar <amitkumar at openjdk.org> wrote:

> But if I revert the changes I had done, then it passes. Same situation I'm facing on s390x. Is this expected ?
> 
> failure log: [type_profile_failure.log](https://github.com/user-attachments/files/15741205/type_profile_failure.log)

Sorry for necro-posting, but I saw that there had never been a reply to this one.

The IR tests that are faliing count the number of CMP nodes in a type check. When we disable the use of secondary_super_cache in C2, we reduce the number of CMP nodes, because we are no longer checking the secondary_super_cache. This is failure OK for now, because it never triggers without diagnostic VM options, but when we remove the secondary_super_cache altogether this test will have to be revised.

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PR Comment: https://git.openjdk.org/jdk/pull/19368#issuecomment-2437413279