RFR: 8072070: Improve interpreter stack banging [v4]

[Aleksey Shipilev]

On Tue, 8 Feb 2022 12:28:34 GMT, Quan Anh Mai <duke at openjdk.java.net> wrote:

>> Aleksey Shipilev has updated the pull request incrementally with three additional commits since the last revision:
>> 
>>  - Indents
>>  - Drop the test group definition
>>  - Update copyrights
>
> src/hotspot/share/runtime/stackOverflow.hpp line 121:
> 
>> 119:   //  |  shadow zone
>> 120:   //  |
>> 121:   //  --                                          ---   <--  shadow_zone_growth_watermark()
> 
> Hi, should the `watermark` be somewhere below (regarding address) the last frame instead?

Good point, fixed in new commit.

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PR: https://git.openjdk.java.net/jdk/pull/7247