[lworld] RFR: 8371604: [lworld] SIGSEGV in InlineKlass::is_payload_marked_as_null [v2]

[Paul Hübner]

On Fri, 21 Nov 2025 16:00:08 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

> This looks good. Did you have a jvmci change still?

Nope, I shouldn't need to change `ciField` anymore as far as I can tell, and Fred agrees. But thanks for being vigilant!

> src/hotspot/share/oops/flatArrayOop.inline.hpp line 42:
> 
>> 40: 
>> 41:   address addr = (address) base();
>> 42:   addr += (index << Klass::layout_helper_log2_element_size(lh));
> 
> Because index is an int, this could go negative right?

Yep.

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PR Comment: https://git.openjdk.org/valhalla/pull/1752#issuecomment-3563694052
PR Review Comment: https://git.openjdk.org/valhalla/pull/1752#discussion_r2550257025