RFR: 8287901: Loom: Failures with -XX:+VerifyStack [v2]

[Patricio Chilano Mateo]

On Wed, 8 Jun 2022 16:30:37 GMT, Ron Pressler <rpressler at openjdk.org> wrote:

>> Please review the following change.
>> 
>> Debugging information added to `frame::describe` (used by `JavaThread::print_frame_layout`) was inaccurate, but proved fatal with `VerifyStack`, which uses the same information for verification.
>> 
>> The location of a caller frame's return address and spilled fp, which are located in the callee, were recorded by the caller frame. In the case of the special frame `Continuation.enterSpecial`, those locations were recorded incorrectly. The fix is to record the information while describing the callee frame, rather than the caller.
>> 
>> Passes tier1
>
> Ron Pressler has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Fix locations for interpreted frames

Looks good to me.

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Marked as reviewed by pchilanomate (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/9066