RFR: 8316130: Incorrect control in LibraryCallKit::inline_native_notify_jvmti_funcs [v2]

[Tobias Hartmann]

On Thu, 14 Sep 2023 12:17:20 GMT, Tobias Hartmann <thartmann at openjdk.org> wrote:

>> We hit an assert during loop opts because the control input fed into `must_be_not_null` in `LibraryCallKit::inline_native_notify_jvmti_funcs` is wrong. The problem is that control is obtained from the `GraphKit` while it's been updated via the `IdealKit`. I simply moved the `must_be_not_null` out of the if branch and to before `IdealKit` creation, similar to what we do for other intrinsics.
>> 
>> The original reproducer requires JFR and changes to core libraries (see JBS for details) and I was not able to extract a standalone reproducer. I don't think it's worth it because the required core libraries changes will be integrated separately and then the existing test will trigger the issue (with JFR).
>> 
>> Thanks,
>> Tobias
>
> Tobias Hartmann has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Removed second vt_oop declaration

Thanks, Christian!

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PR Comment: https://git.openjdk.org/jdk/pull/15713#issuecomment-1719414538