PJRT_Plugin_Attributes returns a null pointer and therefore no stablehlo_current_version attribute

[cerisier]

This issue concerns the PJRT plugin that we (@zml) are loading directly.

Issue

The PJRT_Plugin_Attributes function returns a null pointer.

More importantly, it lacks the stablehlo_current_version attribute.

We need the version used by the PJRT plugin to target the appropriate StableHLO version when serializing to bytecode.

Since we cannot access the plugin’s StableHLO version, we default to WEEK_12 compatibility from the current StableHLO version. Unfortunately, the plugin is older than 12 weeks compared to the current StableHLO version, which breaks StableHLO’s backward compatibility conventions.

[aws-bowencc]

Hi @cerisier , thx for raising this ticket, we will take a look and get back to you.